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#!/bin/bash

set -e

#
# Paste content of function-common
# https://lab.nexedi.com/nexedi/slapos.package/blob/master/playbook/roles/install-script/files/function-common
#
#!/bin/bash
#
# functions-common - Common functions used by DevStack components
#
# The canonical copy of this file is maintained in the DevStack repo.
# All modifications should be made there and then sync'ed to other repos
# as required.
#
# This file is sorted alphabetically within the function groups.
#
# - Config Functions
# - Control Functions
# - Distro Functions
# - Git Functions
# - OpenStack Functions
# - Package Functions
# - Process Functions
# - Service Functions
# - System Functions
#
# The following variables are assumed to be defined by certain functions:
#
# - ``ENABLED_SERVICES``
# - ``ERROR_ON_CLONE``
# - ``FILES``
# - ``OFFLINE``
# - ``RECLONE``
# - ``REQUIREMENTS_DIR``
# - ``STACK_USER``
# - ``TRACK_DEPENDS``
# - ``UNDO_REQUIREMENTS``
# - ``http_proxy``, ``https_proxy``, ``no_proxy``
#

# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace

# Global Config Variables
declare -A GITREPO
declare -A GITBRANCH
declare -A GITDIR

TRACK_DEPENDS=${TRACK_DEPENDS:-False}


# Normalize config values to True or False
# Accepts as False: 0 no No NO false False FALSE
# Accepts as True: 1 yes Yes YES true True TRUE
# VAR=$(trueorfalse default-value test-value)
function trueorfalse {
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local default=$1
    local literal=$2
    local testval=${!literal:-}

    [[ -z "$testval" ]] && { echo "$default"; return; }
    [[ "0 no No NO false False FALSE" =~ "$testval" ]] && { echo "False"; return; }
    [[ "1 yes Yes YES true True TRUE" =~ "$testval" ]] && { echo "True"; return; }
    echo "$default"
    $xtrace
}

#function isset {
#    [[ -v "$1" ]]
#}
#
# Control Functions
# =================

# Prints backtrace info
# filename:lineno:function
# backtrace level
function backtrace {
    local level=$1
    local deep=$((${#BASH_SOURCE[@]} - 1))
    echo "[Call Trace]"
    while [ $level -le $deep ]; do
        echo "${BASH_SOURCE[$deep]}:${BASH_LINENO[$deep-1]}:${FUNCNAME[$deep-1]}"
        deep=$((deep - 1))
    done
}

# Prints line number and "message" then exits
# die $LINENO "message"
function die {
    local exitcode=$?
    set +o xtrace
    local line=$1; shift
    if [ $exitcode == 0 ]; then
        exitcode=1
    fi
    backtrace 2
    err $line "$*"
    # Give buffers a second to flush
    sleep 1
    exit $exitcode
}

# Checks an environment variable is not set or has length 0 OR if the
# exit code is non-zero and prints "message" and exits
# NOTE: env-var is the variable name without a '$'
# die_if_not_set $LINENO env-var "message"
function die_if_not_set {
    local exitcode=$?
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local line=$1; shift
    local evar=$1; shift
    if ! is_set $evar || [ $exitcode != 0 ]; then
        die $line "$*"
    fi
    $xtrace
}

# Prints line number and "message" in error format
# err $LINENO "message"
function err {
    local exitcode=$?
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local msg="[ERROR] ${BASH_SOURCE[2]}:$1 $2"
    echo $msg 1>&2;
    if [[ -n ${LOGDIR} ]]; then
        echo $msg >> "${LOGDIR}/error.log"
    fi
    $xtrace
    return $exitcode
}

# Checks an environment variable is not set or has length 0 OR if the
# exit code is non-zero and prints "message"
# NOTE: env-var is the variable name without a '$'
# err_if_not_set $LINENO env-var "message"
function err_if_not_set {
    local exitcode=$?
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local line=$1; shift
    local evar=$1; shift
    if ! is_set $evar || [ $exitcode != 0 ]; then
        err $line "$*"
    fi
    $xtrace
    return $exitcode
}

# Exit after outputting a message about the distribution not being supported.
# exit_distro_not_supported [optional-string-telling-what-is-missing]
function exit_distro_not_supported {
    if [[ -z "$DISTRO" ]]; then
        GetDistro
    fi

    if [ $# -gt 0 ]; then
        die $LINENO "Support for $DISTRO is incomplete: no support for $@"
    else
        die $LINENO "Support for $DISTRO is incomplete."
    fi
}

# Test if the named environment variable is set and not zero length
# is_set env-var
function is_set {
    local var=\$"$1"
    eval "[ -n \"$var\" ]" # For ex.: sh -c "[ -n \"$var\" ]" would be better, but several exercises depends on this
}

# Prints line number and "message" in warning format
# warn $LINENO "message"
function warn {
    local exitcode=$?
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local msg="[WARNING] ${BASH_SOURCE[2]}:$1 $2"
    echo $msg 1>&2;
    if [[ -n ${LOGDIR} ]]; then
        echo $msg >> "${LOGDIR}/error.log"
    fi
    $xtrace
    return $exitcode
}


# Distro Functions
# ================

# Determine OS Vendor, Release and Update
# Tested with OS/X, Ubuntu, RedHat, CentOS, Fedora
# Returns results in global variables:
# ``os_VENDOR`` - vendor name: ``Ubuntu``, ``Fedora``, etc
# ``os_RELEASE`` - major release: ``14.04`` (Ubuntu), ``20`` (Fedora)
# ``os_UPDATE`` - update: ex. the ``5`` in ``RHEL6.5``
# ``os_PACKAGE`` - package type: ``deb`` or ``rpm``
# ``os_CODENAME`` - vendor's codename for release: ``snow leopard``, ``trusty``
os_VENDOR=""
os_RELEASE=""
os_UPDATE=""
os_PACKAGE=""
os_CODENAME=""

# GetOSVersion
function GetOSVersion {

    # Figure out which vendor we are
    if [[ -x "`which sw_vers 2>/dev/null`" ]]; then
        # OS/X
        os_VENDOR=`sw_vers -productName`
        os_RELEASE=`sw_vers -productVersion`
        os_UPDATE=${os_RELEASE##*.}
        os_RELEASE=${os_RELEASE%.*}
        os_PACKAGE=""
        if [[ "$os_RELEASE" =~ "10.7" ]]; then
            os_CODENAME="lion"
        elif [[ "$os_RELEASE" =~ "10.6" ]]; then
            os_CODENAME="snow leopard"
        elif [[ "$os_RELEASE" =~ "10.5" ]]; then
            os_CODENAME="leopard"
        elif [[ "$os_RELEASE" =~ "10.4" ]]; then
            os_CODENAME="tiger"
        elif [[ "$os_RELEASE" =~ "10.3" ]]; then
            os_CODENAME="panther"
        else
            os_CODENAME=""
        fi
    elif [[ -x $(which lsb_release 2>/dev/null) ]]; then
        os_VENDOR=$(lsb_release -i -s)
        os_RELEASE=$(lsb_release -r -s)
        os_UPDATE=""
        os_PACKAGE="rpm"
240
        if [[ "Debian,Ubuntu,LinuxMint,Raspbian" =~ $os_VENDOR ]]; then
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            os_PACKAGE="deb"
        elif [[ "SUSE LINUX" =~ $os_VENDOR ]]; then
            lsb_release -d -s | grep -q openSUSE
            if [[ $? -eq 0 ]]; then
                os_VENDOR="openSUSE"
            fi
        elif [[ $os_VENDOR == "openSUSE project" ]]; then
            os_VENDOR="openSUSE"
        elif [[ $os_VENDOR =~ Red.*Hat ]]; then
            os_VENDOR="Red Hat"
        fi
        os_CODENAME=$(lsb_release -c -s)
    elif [[ -r /etc/redhat-release ]]; then
        # Red Hat Enterprise Linux Server release 5.5 (Tikanga)
        # Red Hat Enterprise Linux Server release 7.0 Beta (Maipo)
        # CentOS release 5.5 (Final)
        # CentOS Linux release 6.0 (Final)
        # Fedora release 16 (Verne)
        # XenServer release 6.2.0-70446c (xenenterprise)
        # Oracle Linux release 7
        os_CODENAME=""
        for r in "Red Hat" CentOS Fedora XenServer; do
            os_VENDOR=$r
            if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then
                ver=`sed -e 's/^.* \([0-9].*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`
                os_CODENAME=${ver#*|}
                os_RELEASE=${ver%|*}
                os_UPDATE=${os_RELEASE##*.}
                os_RELEASE=${os_RELEASE%.*}
                break
            fi
            os_VENDOR=""
        done
        if [ "$os_VENDOR" = "Red Hat" ] && [[ -r /etc/oracle-release ]]; then
            os_VENDOR=OracleLinux
        fi
        os_PACKAGE="rpm"
    elif [[ -r /etc/SuSE-release ]]; then
        for r in openSUSE "SUSE Linux"; do
            if [[ "$r" = "SUSE Linux" ]]; then
                os_VENDOR="SUSE LINUX"
            else
                os_VENDOR=$r
            fi

            if [[ -n "`grep \"$r\" /etc/SuSE-release`" ]]; then
                os_CODENAME=`grep "CODENAME = " /etc/SuSE-release | sed 's:.* = ::g'`
                os_RELEASE=`grep "VERSION = " /etc/SuSE-release | sed 's:.* = ::g'`
                os_UPDATE=`grep "PATCHLEVEL = " /etc/SuSE-release | sed 's:.* = ::g'`
                break
            fi
            os_VENDOR=""
        done
        os_PACKAGE="rpm"
    # If lsb_release is not installed, we should be able to detect Debian OS
    elif [[ -f /etc/debian_version ]] && [[ $(cat /proc/version) =~ "Debian" ]]; then
        os_VENDOR="Debian"
        os_PACKAGE="deb"
        os_CODENAME=$(awk '/VERSION=/' /etc/os-release | sed 's/VERSION=//' | sed -r 's/\"|\(|\)//g' | awk '{print $2}')
        os_RELEASE=$(awk '/VERSION_ID=/' /etc/os-release | sed 's/VERSION_ID=//' | sed 's/\"//g')
    fi
    export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME
}

# Translate the OS version values into common nomenclature
# Sets global ``DISTRO`` from the ``os_*`` values
declare DISTRO

function GetDistro {
    GetOSVersion
    if [[ "$os_VENDOR" =~ (Ubuntu) || "$os_VENDOR" =~ (Debian) ]]; then
        # 'Everyone' refers to Ubuntu / Debian releases by the code name adjective
        DISTRO=$os_CODENAME
    elif [[ "$os_VENDOR" =~ (Fedora) ]]; then
        # For Fedora, just use 'f' and the release
        DISTRO="f$os_RELEASE"
    elif [[ "$os_VENDOR" =~ (openSUSE) ]]; then
        DISTRO="opensuse-$os_RELEASE"
    elif [[ "$os_VENDOR" =~ (SUSE LINUX) ]]; then
        # For SLE, also use the service pack
        if [[ -z "$os_UPDATE" ]]; then
            DISTRO="sle${os_RELEASE}"
        else
            DISTRO="sle${os_RELEASE}sp${os_UPDATE}"
        fi
    elif [[ "$os_VENDOR" =~ (Red Hat) || \
        "$os_VENDOR" =~ (CentOS) || \
        "$os_VENDOR" =~ (OracleLinux) ]]; then
        # Drop the . release as we assume it's compatible
        DISTRO="rhel${os_RELEASE::1}"
    elif [[ "$os_VENDOR" =~ (XenServer) ]]; then
        DISTRO="xs$os_RELEASE"
    else
        # Catch-all for now is Vendor + Release + Update
        DISTRO="$os_VENDOR-$os_RELEASE.$os_UPDATE"
    fi
    export DISTRO
}

# Utility function for checking machine architecture
# is_arch arch-type
function is_arch {
    [[ "$(uname -m)" == "$1" ]]
}

# Determine if current distribution is an Oracle distribution
# is_oraclelinux
function is_oraclelinux {
    if [[ -z "$os_VENDOR" ]]; then
        GetOSVersion
    fi

    [ "$os_VENDOR" = "OracleLinux" ]
}


# Determine if current distribution is a Fedora-based distribution
# (Fedora, RHEL, CentOS, etc).
# is_fedora
function is_fedora {
    if [[ -z "$os_VENDOR" ]]; then
        GetOSVersion
    fi

    [ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || \
        [ "$os_VENDOR" = "CentOS" ] || [ "$os_VENDOR" = "OracleLinux" ]
}


# Determine if current distribution is a SUSE-based distribution
# (openSUSE, SLE).
# is_suse
function is_suse {
    if [[ -z "$os_VENDOR" ]]; then
        GetOSVersion
    fi

    [ "$os_VENDOR" = "openSUSE" ] || [ "$os_VENDOR" = "SUSE LINUX" ]
}


# Determine if current distribution is an Ubuntu-based distribution
# It will also detect non-Ubuntu but Debian-based distros
# is_ubuntu
function is_ubuntu {
    if [[ -z "$os_PACKAGE" ]]; then
        GetOSVersion
    fi
    [ "$os_PACKAGE" = "deb" ]
}


# Git Functions
# =============

# Returns openstack release name for a given branch name
# ``get_release_name_from_branch branch-name``
function get_release_name_from_branch {
    local branch=$1
    if [[ $branch =~ "stable/" || $branch =~ "proposed/" ]]; then
        echo ${branch#*/}
    else
        echo "master"
    fi
}

# git clone only if directory doesn't exist already.  Since ``DEST`` might not
# be owned by the installation user, we create the directory and change the
# ownership to the proper user.
# Set global ``RECLONE=yes`` to simulate a clone when dest-dir exists
# Set global ``ERROR_ON_CLONE=True`` to abort execution with an error if the git repo
# does not exist (default is False, meaning the repo will be cloned).
# Uses globals ``ERROR_ON_CLONE``, ``OFFLINE``, ``RECLONE``
# git_clone remote dest-dir branch
function git_clone {
    local git_remote=$1
    local git_dest=$2
    local git_ref=$3
    local orig_dir=$(pwd)
    local git_clone_flags=""

    RECLONE=$(trueorfalse False RECLONE)
    if [[ "${GIT_DEPTH}" -gt 0 ]]; then
        git_clone_flags="$git_clone_flags --depth $GIT_DEPTH"
    fi

    if [[ "$OFFLINE" = "True" ]]; then
        echo "Running in offline mode, clones already exist"
        # print out the results so we know what change was used in the logs
        cd $git_dest
        git show --oneline | head -1
        cd $orig_dir
        return
    fi

    if echo $git_ref | egrep -q "^refs"; then
        # If our branch name is a gerrit style refs/changes/...
        if [[ ! -d $git_dest ]]; then
            [[ "$ERROR_ON_CLONE" = "True" ]] && \
                die $LINENO "Cloning not allowed in this configuration"
            git_timed clone $git_clone_flags $git_remote $git_dest
        fi
        cd $git_dest
        git_timed fetch $git_remote $git_ref && git checkout FETCH_HEAD
    else
        # do a full clone only if the directory doesn't exist
        if [[ ! -d $git_dest ]]; then
            [[ "$ERROR_ON_CLONE" = "True" ]] && \
                die $LINENO "Cloning not allowed in this configuration"
            git_timed clone $git_clone_flags $git_remote $git_dest
            cd $git_dest
            # This checkout syntax works for both branches and tags
            git checkout $git_ref
        elif [[ "$RECLONE" = "True" ]]; then
            # if it does exist then simulate what clone does if asked to RECLONE
            cd $git_dest
            # set the url to pull from and fetch
            git remote set-url origin $git_remote
            git_timed fetch origin
            # remove the existing ignored files (like pyc) as they cause breakage
            # (due to the py files having older timestamps than our pyc, so python
            # thinks the pyc files are correct using them)
            find $git_dest -name '*.pyc' -delete

            # handle git_ref accordingly to type (tag, branch)
            if [[ -n "`git show-ref refs/tags/$git_ref`" ]]; then
                git_update_tag $git_ref
            elif [[ -n "`git show-ref refs/heads/$git_ref`" ]]; then
                git_update_branch $git_ref
            elif [[ -n "`git show-ref refs/remotes/origin/$git_ref`" ]]; then
                git_update_remote_branch $git_ref
            else
                die $LINENO "$git_ref is neither branch nor tag"
            fi

        fi
    fi

    # print out the results so we know what change was used in the logs
    cd $git_dest
    git show --oneline | head -1
    cd $orig_dir
}

# A variation on git clone that lets us specify a project by it's
# actual name, like oslo.config. This is exceptionally useful in the
# library installation case
function git_clone_by_name {
    local name=$1
    local repo=${GITREPO[$name]}
    local dir=${GITDIR[$name]}
    local branch=${GITBRANCH[$name]}
    git_clone $repo $dir $branch
}


# git can sometimes get itself infinitely stuck with transient network
# errors or other issues with the remote end.  This wraps git in a
# timeout/retry loop and is intended to watch over non-local git
# processes that might hang.  GIT_TIMEOUT, if set, is passed directly
# to timeout(1); otherwise the default value of 0 maintains the status
# quo of waiting forever.
# usage: git_timed <git-command>
function git_timed {
    local count=0
    local timeout=0

    if [[ -n "${GIT_TIMEOUT}" ]]; then
        timeout=${GIT_TIMEOUT}
    fi

    until timeout -s SIGINT ${timeout} git "$@"; do
        # 124 is timeout(1)'s special return code when it reached the
        # timeout; otherwise assume fatal failure
        if [[ $? -ne 124 ]]; then
            die $LINENO "git call failed: [git $@]"
        fi

        count=$(($count + 1))
        warn "timeout ${count} for git call: [git $@]"
        if [ $count -eq 3 ]; then
            die $LINENO "Maximum of 3 git retries reached"
        fi
        sleep 5
    done
}

# git update using reference as a branch.
# git_update_branch ref
function git_update_branch {
    local git_branch=$1

    git checkout -f origin/$git_branch
    # a local branch might not exist
    git branch -D $git_branch || true
    git checkout -b $git_branch
}

# git update using reference as a branch.
# git_update_remote_branch ref
function git_update_remote_branch {
    local git_branch=$1

    git checkout -b $git_branch -t origin/$git_branch
}

# git update using reference as a tag. Be careful editing source at that repo
# as working copy will be in a detached mode
# git_update_tag ref
function git_update_tag {
    local git_tag=$1

    git tag -d $git_tag
    # fetching given tag only
    git_timed fetch origin tag $git_tag
    git checkout -f $git_tag
}


# OpenStack Functions
# ===================

# Get the default value for HOST_IP
# get_default_host_ip fixed_range floating_range host_ip_iface host_ip
function get_default_host_ip {
    local fixed_range=$1
    local floating_range=$2
    local host_ip_iface=$3
    local host_ip=$4

    # Search for an IP unless an explicit is set by ``HOST_IP`` environment variable
    if [ -z "$host_ip" -o "$host_ip" == "dhcp" ]; then
        host_ip=""
        # Find the interface used for the default route
        host_ip_iface=${host_ip_iface:-$(ip route | awk '/default/ {print $5}' | head -1)}
        local host_ips=$(LC_ALL=C ip -f inet addr show ${host_ip_iface} | awk '/inet/ {split($2,parts,"/");  print parts[1]}')
        local ip
        for ip in $host_ips; do
            # Attempt to filter out IP addresses that are part of the fixed and
            # floating range. Note that this method only works if the ``netaddr``
            # python library is installed. If it is not installed, an error
            # will be printed and the first IP from the interface will be used.
            # If that is not correct set ``HOST_IP`` in ``localrc`` to the correct
            # address.
            if ! (address_in_net $ip $fixed_range || address_in_net $ip $floating_range); then
                host_ip=$ip
                break;
            fi
        done
    fi
    echo $host_ip
}

# Generates hex string from ``size`` byte of pseudo random data
# generate_hex_string size
function generate_hex_string {
    local size=$1
    hexdump -n "$size" -v -e '/1 "%02x"' /dev/urandom
}

# Grab a numbered field from python prettytable output
# Fields are numbered starting with 1
# Reverse syntax is supported: -1 is the last field, -2 is second to last, etc.
# get_field field-number
function get_field {
    local data field
    while read data; do
        if [ "$1" -lt 0 ]; then
            field="(\$(NF$1))"
        else
            field="\$$(($1 + 1))"
        fi
        echo "$data" | awk -F'[ \t]*\\|[ \t]*' "{print $field}"
    done
}

# install default policy
# copy over a default policy.json and policy.d for projects
function install_default_policy {
    local project=$1
    local project_uc=$(echo $1|tr a-z A-Z)
    local conf_dir="${project_uc}_CONF_DIR"
    # eval conf dir to get the variable
    conf_dir="${!conf_dir}"
    local project_dir="${project_uc}_DIR"
    # eval project dir to get the variable
    project_dir="${!project_dir}"
    local sample_conf_dir="${project_dir}/etc/${project}"
    local sample_policy_dir="${project_dir}/etc/${project}/policy.d"

    # first copy any policy.json
    cp -p $sample_conf_dir/policy.json $conf_dir
    # then optionally copy over policy.d
    if [[ -d $sample_policy_dir ]]; then
        cp -r $sample_policy_dir $conf_dir/policy.d
    fi
}

# Add a policy to a policy.json file
# Do nothing if the policy already exists
# ``policy_add policy_file policy_name policy_permissions``
function policy_add {
    local policy_file=$1
    local policy_name=$2
    local policy_perm=$3

    if grep -q ${policy_name} ${policy_file}; then
        echo "Policy ${policy_name} already exists in ${policy_file}"
        return
    fi

    # Add a terminating comma to policy lines without one
    # Remove the closing '}' and all lines following to the end-of-file
    local tmpfile=$(mktemp)
    uniq ${policy_file} | sed -e '
        s/]$/],/
        /^[}]/,$d
    ' > ${tmpfile}

    # Append policy and closing brace
    echo "    \"${policy_name}\": ${policy_perm}" >>${tmpfile}
    echo "}" >>${tmpfile}

    mv ${tmpfile} ${policy_file}
}

# Gets or creates a domain
# Usage: get_or_create_domain <name> <description>
function get_or_create_domain {
    local os_url="$KEYSTONE_SERVICE_URI_V3"
    # Gets domain id
    local domain_id=$(
        # Gets domain id
        openstack --os-token=$OS_TOKEN --os-url=$os_url \
            --os-identity-api-version=3 domain show $1 \
            -f value -c id 2>/dev/null ||
        # Creates new domain
        openstack --os-token=$OS_TOKEN --os-url=$os_url \
            --os-identity-api-version=3 domain create $1 \
            --description "$2" \
            -f value -c id
    )
    echo $domain_id
}

# Gets or creates group
# Usage: get_or_create_group <groupname> [<domain> <description>]
function get_or_create_group {
    local domain=${2:+--domain ${2}}
    local desc="${3:-}"
    local os_url="$KEYSTONE_SERVICE_URI_V3"
    # Gets group id
    local group_id=$(
        # Creates new group with --or-show
        openstack --os-token=$OS_TOKEN --os-url=$os_url \
            --os-identity-api-version=3 group create $1 \
            $domain --description "$desc" --or-show \
            -f value -c id
    )
    echo $group_id
}

# Gets or creates user
# Usage: get_or_create_user <username> <password> [<email> [<domain>]]
function get_or_create_user {
    if [[ ! -z "$3" ]]; then
        local email="--email=$3"
    else
        local email=""
    fi
    local os_cmd="openstack"
    local domain=""
    if [[ ! -z "$4" ]]; then
        domain="--domain=$4"
        os_cmd="$os_cmd --os-url=$KEYSTONE_SERVICE_URI_V3 --os-identity-api-version=3"
    fi
    # Gets user id
    local user_id=$(
        # Creates new user with --or-show
        $os_cmd user create \
            $1 \
            --password "$2" \
            $email \
            $domain \
            --or-show \
            -f value -c id
    )
    echo $user_id
}

# Gets or creates project
# Usage: get_or_create_project <name> [<domain>]
function get_or_create_project {
    # Gets project id
    local os_cmd="openstack"
    local domain=""
    if [[ ! -z "$2" ]]; then
        domain="--domain=$2"
        os_cmd="$os_cmd --os-url=$KEYSTONE_SERVICE_URI_V3 --os-identity-api-version=3"
    fi
    local project_id=$(
        # Creates new project with --or-show
        $os_cmd project create $1 $domain --or-show -f value -c id
    )
    echo $project_id
}

# Gets or creates role
# Usage: get_or_create_role <name>
function get_or_create_role {
    local role_id=$(
        # Creates role with --or-show
        openstack role create $1 --or-show -f value -c id
    )
    echo $role_id
}

# Gets or adds user role to project
# Usage: get_or_add_user_project_role <role> <user> <project>
function get_or_add_user_project_role {
    # Gets user role id
    local user_role_id=$(openstack role list \
        --user $2 \
        --project $3 \
        --column "ID" \
        --column "Name" \
        | grep " $1 " | get_field 1)
    if [[ -z "$user_role_id" ]]; then
        # Adds role to user
        user_role_id=$(openstack role add \
            $1 \
            --user $2 \
            --project $3 \
            | grep " id " | get_field 2)
    fi
    echo $user_role_id
}

# Gets or adds group role to project
# Usage: get_or_add_group_project_role <role> <group> <project>
function get_or_add_group_project_role {
    # Gets group role id
    local group_role_id=$(openstack role list \
        --group $2 \
        --project $3 \
        --column "ID" \
        --column "Name" \
        | grep " $1 " | get_field 1)
    if [[ -z "$group_role_id" ]]; then
        # Adds role to group
        group_role_id=$(openstack role add \
            $1 \
            --group $2 \
            --project $3 \
            | grep " id " | get_field 2)
    fi
    echo $group_role_id
}

# Gets or creates service
# Usage: get_or_create_service <name> <type> <description>
function get_or_create_service {
    # Gets service id
    local service_id=$(
        # Gets service id
        openstack service show $1 -f value -c id 2>/dev/null ||
        # Creates new service if not exists
        openstack service create \
            $2 \
            --name $1 \
            --description="$3" \
            -f value -c id
    )
    echo $service_id
}

# Gets or creates endpoint
# Usage: get_or_create_endpoint <service> <region> <publicurl> <adminurl> <internalurl>
function get_or_create_endpoint {
    # Gets endpoint id
    local endpoint_id=$(openstack endpoint list \
        --column "ID" \
        --column "Region" \
        --column "Service Name" \
        | grep " $2 " \
        | grep " $1 " | get_field 1)
    if [[ -z "$endpoint_id" ]]; then
        # Creates new endpoint
        endpoint_id=$(openstack endpoint create \
            $1 \
            --region $2 \
            --publicurl $3 \
            --adminurl $4 \
            --internalurl $5 \
            | grep " id " | get_field 2)
    fi
    echo $endpoint_id
}


# Package Functions
# =================

# _get_package_dir
function _get_package_dir {
    local base_dir=$1
    local pkg_dir

    if [[ -z "$base_dir" ]]; then
        base_dir=$FILES
    fi
    if is_ubuntu; then
        pkg_dir=$base_dir/debs
    elif is_fedora; then
        pkg_dir=$base_dir/rpms
    elif is_suse; then
        pkg_dir=$base_dir/rpms-suse
    else
        exit_distro_not_supported "list of packages"
    fi
    echo "$pkg_dir"
}

# Wrapper for ``apt-get`` to set cache and proxy environment variables
# Uses globals ``OFFLINE``, ``*_proxy``
# apt_get operation package [package ...]
function apt_get {
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace

    [[ "$OFFLINE" = "True" || -z "$@" ]] && return
    local sudo="sudo"
    [[ "$(id -u)" = "0" ]] && sudo="env"

    $xtrace

    $sudo DEBIAN_FRONTEND=noninteractive \
        http_proxy=${http_proxy:-} https_proxy=${https_proxy:-} \
        no_proxy=${no_proxy:-} \
        apt-get --option "Dpkg::Options::=--force-confold" --assume-yes "$@"
}

function _parse_package_files {
    local files_to_parse=$@

    if [[ -z "$DISTRO" ]]; then
        GetDistro
    fi

    for fname in ${files_to_parse}; do
        local OIFS line package distros distro
        [[ -e $fname ]] || continue

        OIFS=$IFS
        IFS=$'\n'
        for line in $(<${fname}); do
            if [[ $line =~ "NOPRIME" ]]; then
                continue
            fi

            # Assume we want this package
            package=${line%#*}
            inst_pkg=1

            # Look for # dist:xxx in comment
            if [[ $line =~ (.*)#.*dist:([^ ]*) ]]; then
                # We are using BASH regexp matching feature.
                package=${BASH_REMATCH[1]}
                distros=${BASH_REMATCH[2]}
                # In bash ${VAR,,} will lowecase VAR
                # Look for a match in the distro list
                if [[ ! ${distros,,} =~ ${DISTRO,,} ]]; then
                    # If no match then skip this package
                    inst_pkg=0
                fi
            fi

            if [[ $inst_pkg = 1 ]]; then
                echo $package
            fi
        done
        IFS=$OIFS
    done
}

# get_packages() collects a list of package names of any type from the
# prerequisite files in ``files/{debs|rpms}``.  The list is intended
# to be passed to a package installer such as apt or yum.
#
# Only packages required for the services in 1st argument will be
# included.  Two bits of metadata are recognized in the prerequisite files:
#
# - ``# NOPRIME`` defers installation to be performed later in `stack.sh`
# - ``# dist:DISTRO`` or ``dist:DISTRO1,DISTRO2`` limits the selection
#   of the package to the distros listed.  The distro names are case insensitive.
function get_packages {
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local services=$@
    local package_dir=$(_get_package_dir)
    local file_to_parse=""
    local service=""

    if [[ -z "$package_dir" ]]; then
        echo "No package directory supplied"
        return 1
    fi
    for service in ${services//,/ }; do
        # Allow individual services to specify dependencies
        if [[ -e ${package_dir}/${service} ]]; then
            file_to_parse="${file_to_parse} ${package_dir}/${service}"
        fi
        # NOTE(sdague) n-api needs glance for now because that's where
        # glance client is
        if [[ $service == n-api ]]; then
            if [[ ! $file_to_parse =~ $package_dir/nova ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/nova"
            fi
            if [[ ! $file_to_parse =~ $package_dir/glance ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/glance"
            fi
        elif [[ $service == c-* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/cinder ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/cinder"
            fi
        elif [[ $service == ceilometer-* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/ceilometer ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/ceilometer"
            fi
        elif [[ $service == s-* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/swift ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/swift"
            fi
        elif [[ $service == n-* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/nova ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/nova"
            fi
        elif [[ $service == g-* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/glance ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/glance"
            fi
        elif [[ $service == key* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/keystone ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/keystone"
            fi
        elif [[ $service == q-* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/neutron ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/neutron"
            fi
        elif [[ $service == ir-* ]]; then
            if [[ ! $file_to_parse =~ $package_dir/ironic ]]; then
                file_to_parse="${file_to_parse} ${package_dir}/ironic"
            fi
        fi
    done
    echo "$(_parse_package_files $file_to_parse)"
    $xtrace
}

# get_plugin_packages() collects a list of package names of any type from a
# plugin's prerequisite files in ``$PLUGIN/devstack/files/{debs|rpms}``.  The
# list is intended to be passed to a package installer such as apt or yum.
#
# Only packages required for enabled and collected plugins will included.
#
# The same metadata used in the main DevStack prerequisite files may be used
# in these prerequisite files, see get_packages() for more info.
function get_plugin_packages {
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local files_to_parse=""
    local package_dir=""
    for plugin in ${DEVSTACK_PLUGINS//,/ }; do
        local package_dir="$(_get_package_dir ${GITDIR[$plugin]}/devstack/files)"
        files_to_parse+="$package_dir/$plugin"
    done
    echo "$(_parse_package_files $files_to_parse)"
    $xtrace
}

# Distro-agnostic package installer
# Uses globals ``NO_UPDATE_REPOS``, ``REPOS_UPDATED``, ``RETRY_UPDATE``
# install_package package [package ...]
function update_package_repo {
    NO_UPDATE_REPOS=${NO_UPDATE_REPOS:-False}
    REPOS_UPDATED=${REPOS_UPDATED:-False}
    RETRY_UPDATE=${RETRY_UPDATE:-False}

    if [[ "$NO_UPDATE_REPOS" = "True" ]]; then
        return 0
    fi

    if is_ubuntu; then
        local xtrace=$(set +o | grep xtrace)
        set +o xtrace
        if [[ "$REPOS_UPDATED" != "True" || "$RETRY_UPDATE" = "True" ]]; then
            # if there are transient errors pulling the updates, that's fine.
            # It may be secondary repositories that we don't really care about.
1039 1040
            apt_get update --allow-releaseinfo-change || /bin/true
            apt_get update || /bin/true
1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930
            REPOS_UPDATED=True
        fi
        $xtrace
    fi
}

function real_install_package {
    if is_ubuntu; then
        apt_get install "$@"
    elif is_fedora; then
        yum_install "$@"
    elif is_suse; then
        zypper_install "$@"
    else
        exit_distro_not_supported "installing packages"
    fi
}

# Distro-agnostic package installer
# install_package package [package ...]
function install_package {
    update_package_repo
    real_install_package $@ || RETRY_UPDATE=True update_package_repo && real_install_package $@
}

# Distro-agnostic function to tell if a package is installed
# is_package_installed package [package ...]
function is_package_installed {
    if [[ -z "$@" ]]; then
        return 1
    fi

    if [[ -z "$os_PACKAGE" ]]; then
        GetOSVersion
    fi
    if [[ "$os_PACKAGE" = "deb" ]]; then
        dpkg -s "$@" > /dev/null 2> /dev/null
    elif [[ "$os_PACKAGE" = "rpm" ]]; then
        rpm --quiet -q "$@"
    else
        exit_distro_not_supported "finding if a package is installed"
    fi
}

# Distro-agnostic package uninstaller
# uninstall_package package [package ...]
function uninstall_package {
    if is_ubuntu; then
        apt_get purge "$@"
    elif is_fedora; then
        sudo ${YUM:-yum} remove -y "$@" ||:
    elif is_suse; then
        sudo zypper rm "$@"
    else
        exit_distro_not_supported "uninstalling packages"
    fi
}

# Wrapper for ``yum`` to set proxy environment variables
# Uses globals ``OFFLINE``, ``*_proxy``, ``YUM``
# yum_install package [package ...]
function yum_install {
    [[ "$OFFLINE" = "True" ]] && return
    local sudo="sudo"
    [[ "$(id -u)" = "0" ]] && sudo="env"

    # The manual check for missing packages is because yum -y assumes
    # missing packages are OK.  See
    # https://bugzilla.redhat.com/show_bug.cgi?id=965567
    $sudo http_proxy="${http_proxy:-}" https_proxy="${https_proxy:-}" \
        no_proxy="${no_proxy:-}" \
        ${YUM:-yum} install -y "$@" 2>&1 | \
        awk '
            BEGIN { fail=0 }
            /No package/ { fail=1 }
            { print }
            END { exit fail }' || \
                die $LINENO "Missing packages detected"

    # also ensure we catch a yum failure
    if [[ ${PIPESTATUS[0]} != 0 ]]; then
        die $LINENO "${YUM:-yum} install failure"
    fi
}

# zypper wrapper to set arguments correctly
# Uses globals ``OFFLINE``, ``*_proxy``
# zypper_install package [package ...]
function zypper_install {
    [[ "$OFFLINE" = "True" ]] && return
    local sudo="sudo"
    [[ "$(id -u)" = "0" ]] && sudo="env"
    $sudo http_proxy="${http_proxy:-}" https_proxy="${https_proxy:-}" \
        no_proxy="${no_proxy:-}" \
        zypper --non-interactive install --auto-agree-with-licenses "$@"
}


# Process Functions
# =================

# _run_process() is designed to be backgrounded by run_process() to simulate a
# fork.  It includes the dirty work of closing extra filehandles and preparing log
# files to produce the same logs as screen_it().  The log filename is derived
# from the service name.
# Uses globals ``CURRENT_LOG_TIME``, ``LOGDIR``, ``SCREEN_LOGDIR``, ``SCREEN_NAME``, ``SERVICE_DIR``
# If an optional group is provided sg will be used to set the group of
# the command.
# _run_process service "command-line" [group]
function _run_process {
    local service=$1
    local command="$2"
    local group=$3

    # Undo logging redirections and close the extra descriptors
    exec 1>&3
    exec 2>&3
    exec 3>&-
    exec 6>&-

    local real_logfile="${LOGDIR}/${service}.log.${CURRENT_LOG_TIME}"
    if [[ -n ${LOGDIR} ]]; then
        exec 1>&"$real_logfile" 2>&1
        ln -sf "$real_logfile" ${LOGDIR}/${service}.log
        if [[ -n ${SCREEN_LOGDIR} ]]; then
            # Drop the backward-compat symlink
            ln -sf "$real_logfile" ${SCREEN_LOGDIR}/screen-${service}.log
        fi

        # TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.
        export PYTHONUNBUFFERED=1
    fi

    # Run under ``setsid`` to force the process to become a session and group leader.
    # The pid saved can be used with pkill -g to get the entire process group.
    if [[ -n "$group" ]]; then
        setsid sg $group "$command" & echo $! >$SERVICE_DIR/$SCREEN_NAME/$service.pid
    else
        setsid $command & echo $! >$SERVICE_DIR/$SCREEN_NAME/$service.pid
    fi

    # Just silently exit this process
    exit 0
}

# Helper to remove the ``*.failure`` files under ``$SERVICE_DIR/$SCREEN_NAME``.
# This is used for ``service_check`` when all the ``screen_it`` are called finished
# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``
# init_service_check
function init_service_check {
    SCREEN_NAME=${SCREEN_NAME:-stack}
    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}

    if [[ ! -d "$SERVICE_DIR/$SCREEN_NAME" ]]; then
        mkdir -p "$SERVICE_DIR/$SCREEN_NAME"
    fi

    rm -f "$SERVICE_DIR/$SCREEN_NAME"/*.failure
}

# Find out if a process exists by partial name.
# is_running name
function is_running {
    local name=$1
    ps auxw | grep -v grep | grep ${name} > /dev/null
    local exitcode=$?
    # some times I really hate bash reverse binary logic
    return $exitcode
}

# Run a single service under screen or directly
# If the command includes shell metachatacters (;<>*) it must be run using a shell
# If an optional group is provided sg will be used to run the
# command as that group.
# run_process service "command-line" [group]
function run_process {
    local service=$1
    local command="$2"
    local group=$3

    if is_service_enabled $service; then
        if [[ "$USE_SCREEN" = "True" ]]; then
            screen_process "$service" "$command" "$group"
        else
            # Spawn directly without screen
            _run_process "$service" "$command" "$group" &
        fi
    fi
}

# Helper to launch a process in a named screen
# Uses globals ``CURRENT_LOG_TIME``, ```LOGDIR``, ``SCREEN_LOGDIR``, `SCREEN_NAME``,
# ``SERVICE_DIR``, ``USE_SCREEN``
# screen_process name "command-line" [group]
# Run a command in a shell in a screen window, if an optional group
# is provided, use sg to set the group of the command.
function screen_process {
    local name=$1
    local command="$2"
    local group=$3

    SCREEN_NAME=${SCREEN_NAME:-stack}
    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
    USE_SCREEN=$(trueorfalse True USE_SCREEN)

    screen -S $SCREEN_NAME -X screen -t $name

    local real_logfile="${LOGDIR}/${name}.log.${CURRENT_LOG_TIME}"
    echo "LOGDIR: $LOGDIR"
    echo "SCREEN_LOGDIR: $SCREEN_LOGDIR"
    echo "log: $real_logfile"
    if [[ -n ${LOGDIR} ]]; then
        screen -S $SCREEN_NAME -p $name -X logfile "$real_logfile"
        screen -S $SCREEN_NAME -p $name -X log on
        ln -sf "$real_logfile" ${LOGDIR}/${name}.log
        if [[ -n ${SCREEN_LOGDIR} ]]; then
            # Drop the backward-compat symlink
            ln -sf "$real_logfile" ${SCREEN_LOGDIR}/screen-${1}.log
        fi
    fi

    # sleep to allow bash to be ready to be send the command - we are
    # creating a new window in screen and then sends characters, so if
    # bash isn't running by the time we send the command, nothing
    # happens.  This sleep was added originally to handle gate runs
    # where we needed this to be at least 3 seconds to pass
    # consistently on slow clouds. Now this is configurable so that we
    # can determine a reasonable value for the local case which should
    # be much smaller.
    sleep ${SCREEN_SLEEP:-3}

    NL=`echo -ne '\015'`
    # This fun command does the following:
    # - the passed server command is backgrounded
    # - the pid of the background process is saved in the usual place
    # - the server process is brought back to the foreground
    # - if the server process exits prematurely the fg command errors
    # and a message is written to stdout and the process failure file
    #
    # The pid saved can be used in stop_process() as a process group
    # id to kill off all child processes
    if [[ -n "$group" ]]; then
        command="sg $group '$command'"
    fi

    # Append the process to the screen rc file
    screen_rc "$name" "$command"

    screen -S $SCREEN_NAME -p $name -X stuff "$command & echo \$! >$SERVICE_DIR/$SCREEN_NAME/${name}.pid; fg || echo \"$name failed to start\" | tee \"$SERVICE_DIR/$SCREEN_NAME/${name}.failure\"$NL"
}

# Screen rc file builder
# Uses globals ``SCREEN_NAME``, ``SCREENRC``
# screen_rc service "command-line"
function screen_rc {
    SCREEN_NAME=${SCREEN_NAME:-stack}
    SCREENRC=$TOP_DIR/$SCREEN_NAME-screenrc
    if [[ ! -e $SCREENRC ]]; then
        # Name the screen session
        echo "sessionname $SCREEN_NAME" > $SCREENRC
        # Set a reasonable statusbar
        echo "hardstatus alwayslastline '$SCREEN_HARDSTATUS'" >> $SCREENRC
        # Some distributions override PROMPT_COMMAND for the screen terminal type - turn that off
        echo "setenv PROMPT_COMMAND /bin/true" >> $SCREENRC
        echo "screen -t shell bash" >> $SCREENRC
    fi
    # If this service doesn't already exist in the screenrc file
    if ! grep $1 $SCREENRC 2>&1 > /dev/null; then
        NL=`echo -ne '\015'`
        echo "screen -t $1 bash" >> $SCREENRC
        echo "stuff \"$2$NL\"" >> $SCREENRC

        if [[ -n ${LOGDIR} ]]; then
            echo "logfile ${LOGDIR}/${1}.log.${CURRENT_LOG_TIME}" >>$SCREENRC
            echo "log on" >>$SCREENRC
        fi
    fi
}

# Stop a service in screen
# If a PID is available use it, kill the whole process group via TERM
# If screen is being used kill the screen window; this will catch processes
# that did not leave a PID behind
# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``, ``USE_SCREEN``
# screen_stop_service service
function screen_stop_service {
    local service=$1

    SCREEN_NAME=${SCREEN_NAME:-stack}
    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
    USE_SCREEN=$(trueorfalse True USE_SCREEN)

    if is_service_enabled $service; then
        # Clean up the screen window
        screen -S $SCREEN_NAME -p $service -X kill
    fi
}

# Stop a service process
# If a PID is available use it, kill the whole process group via TERM
# If screen is being used kill the screen window; this will catch processes
# that did not leave a PID behind
# Uses globals ``SERVICE_DIR``, ``USE_SCREEN``
# stop_process service
function stop_process {
    local service=$1

    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
    USE_SCREEN=$(trueorfalse True USE_SCREEN)

    if is_service_enabled $service; then
        # Kill via pid if we have one available
        if [[ -r $SERVICE_DIR/$SCREEN_NAME/$service.pid ]]; then
            pkill -g $(cat $SERVICE_DIR/$SCREEN_NAME/$service.pid)
            rm $SERVICE_DIR/$SCREEN_NAME/$service.pid
        fi
        if [[ "$USE_SCREEN" = "True" ]]; then
            # Clean up the screen window
            screen_stop_service $service
        fi
    fi
}

# Helper to get the status of each running service
# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``
# service_check
function service_check {
    local service
    local failures
    SCREEN_NAME=${SCREEN_NAME:-stack}
    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}


    if [[ ! -d "$SERVICE_DIR/$SCREEN_NAME" ]]; then
        echo "No service status directory found"
        return
    fi

    # Check if there is any falure flag file under $SERVICE_DIR/$SCREEN_NAME
    # make this -o errexit safe
    failures=`ls "$SERVICE_DIR/$SCREEN_NAME"/*.failure 2>/dev/null || /bin/true`

    for service in $failures; do
        service=`basename $service`
        service=${service%.failure}
        echo "Error: Service $service is not running"
    done

    if [ -n "$failures" ]; then
        die $LINENO "More details about the above errors can be found with screen, with ./rejoin-stack.sh"
    fi
}

# Tail a log file in a screen if USE_SCREEN is true.
function tail_log {
    local name=$1
    local logfile=$2

    USE_SCREEN=$(trueorfalse True USE_SCREEN)
    if [[ "$USE_SCREEN" = "True" ]]; then
        screen_process "$name" "sudo tail -f $logfile"
    fi
}


# Deprecated Functions
# --------------------

# _old_run_process() is designed to be backgrounded by old_run_process() to simulate a
# fork.  It includes the dirty work of closing extra filehandles and preparing log
# files to produce the same logs as screen_it().  The log filename is derived
# from the service name and global-and-now-misnamed ``SCREEN_LOGDIR``
# Uses globals ``CURRENT_LOG_TIME``, ``SCREEN_LOGDIR``, ``SCREEN_NAME``, ``SERVICE_DIR``
# _old_run_process service "command-line"
function _old_run_process {
    local service=$1
    local command="$2"

    # Undo logging redirections and close the extra descriptors
    exec 1>&3
    exec 2>&3
    exec 3>&-
    exec 6>&-

    if [[ -n ${SCREEN_LOGDIR} ]]; then
        exec 1>&${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} 2>&1
        ln -sf ${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} ${SCREEN_LOGDIR}/screen-${1}.log

        # TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.
        export PYTHONUNBUFFERED=1
    fi

    exec /bin/bash -c "$command"
    die "$service exec failure: $command"
}

# old_run_process() launches a child process that closes all file descriptors and
# then exec's the passed in command.  This is meant to duplicate the semantics
# of screen_it() without screen.  PIDs are written to
# ``$SERVICE_DIR/$SCREEN_NAME/$service.pid`` by the spawned child process.
# old_run_process service "command-line"
function old_run_process {
    local service=$1
    local command="$2"

    # Spawn the child process
    _old_run_process "$service" "$command" &
    echo $!
}

# Compatibility for existing start_XXXX() functions
# Uses global ``USE_SCREEN``
# screen_it service "command-line"
function screen_it {
    if is_service_enabled $1; then
        # Append the service to the screen rc file
        screen_rc "$1" "$2"

        if [[ "$USE_SCREEN" = "True" ]]; then
            screen_process "$1" "$2"
        else
            # Spawn directly without screen
            old_run_process "$1" "$2" >$SERVICE_DIR/$SCREEN_NAME/$1.pid
        fi
    fi
}

# Compatibility for existing stop_XXXX() functions
# Stop a service in screen
# If a PID is available use it, kill the whole process group via TERM
# If screen is being used kill the screen window; this will catch processes
# that did not leave a PID behind
# screen_stop service
function screen_stop {
    # Clean up the screen window
    stop_process $1
}


# Plugin Functions
# =================

DEVSTACK_PLUGINS=${DEVSTACK_PLUGINS:-""}

# enable_plugin <name> <url> [branch]
#
# ``name`` is an arbitrary name - (aka: glusterfs, nova-docker, zaqar)
# ``url`` is a git url
# ``branch`` is a gitref. If it's not set, defaults to master
function enable_plugin {
    local name=$1
    local url=$2
    local branch=${3:-master}
    DEVSTACK_PLUGINS+=",$name"
    GITREPO[$name]=$url
    GITDIR[$name]=$DEST/$name
    GITBRANCH[$name]=$branch
}

# fetch_plugins
#
# clones all plugins
function fetch_plugins {
    local plugins="${DEVSTACK_PLUGINS}"
    local plugin

    # short circuit if nothing to do
    if [[ -z $plugins ]]; then
        return
    fi

    echo "Fetching DevStack plugins"
    for plugin in ${plugins//,/ }; do
        git_clone_by_name $plugin
    done
}

# load_plugin_settings
#
# Load settings from plugins in the order that they were registered
function load_plugin_settings {
    local plugins="${DEVSTACK_PLUGINS}"
    local plugin

    # short circuit if nothing to do
    if [[ -z $plugins ]]; then
        return
    fi

    echo "Loading plugin settings"
    for plugin in ${plugins//,/ }; do
        local dir=${GITDIR[$plugin]}
        # source any known settings
        if [[ -f $dir/devstack/settings ]]; then
            source $dir/devstack/settings
        fi
    done
}

# plugin_override_defaults
#
# Run an extremely early setting phase for plugins that allows default
# overriding of services.
function plugin_override_defaults {
    local plugins="${DEVSTACK_PLUGINS}"
    local plugin

    # short circuit if nothing to do
    if [[ -z $plugins ]]; then
        return
    fi

    echo "Overriding Configuration Defaults"
    for plugin in ${plugins//,/ }; do
        local dir=${GITDIR[$plugin]}
        # source any overrides
        if [[ -f $dir/devstack/override-defaults ]]; then
            # be really verbose that an override is happening, as it
            # may not be obvious if things fail later.
            echo "$plugin has overriden the following defaults"
            cat $dir/devstack/override-defaults
            source $dir/devstack/override-defaults
        fi
    done
}

# run_plugins
#
# Run the devstack/plugin.sh in all the plugin directories. These are
# run in registration order.
function run_plugins {
    local mode=$1
    local phase=$2

    local plugins="${DEVSTACK_PLUGINS}"
    local plugin
    for plugin in ${plugins//,/ }; do
        local dir=${GITDIR[$plugin]}
        if [[ -f $dir/devstack/plugin.sh ]]; then
            source $dir/devstack/plugin.sh $mode $phase
        fi
    done
}

function run_phase {
    local mode=$1
    local phase=$2
    if [[ -d $TOP_DIR/extras.d ]]; then
        for i in $TOP_DIR/extras.d/*.sh; do
            [[ -r $i ]] && source $i $mode $phase
        done
    fi
    # the source phase corresponds to settings loading in plugins
    if [[ "$mode" == "source" ]]; then
        load_plugin_settings
    elif [[ "$mode" == "override_defaults" ]]; then
        plugin_override_defaults
    else
        run_plugins $mode $phase
    fi
}


# Service Functions
# =================

# remove extra commas from the input string (i.e. ``ENABLED_SERVICES``)
# _cleanup_service_list service-list
function _cleanup_service_list {
    echo "$1" | sed -e '
        s/,,/,/g;
        s/^,//;
        s/,$//
    '
}

# disable_all_services() removes all current services
# from ``ENABLED_SERVICES`` to reset the configuration
# before a minimal installation
# Uses global ``ENABLED_SERVICES``
# disable_all_services
function disable_all_services {
    ENABLED_SERVICES=""
}

# Remove all services starting with '-'.  For example, to install all default
# services except rabbit (rabbit) set in ``localrc``:
# ENABLED_SERVICES+=",-rabbit"
# Uses global ``ENABLED_SERVICES``
# disable_negated_services
function disable_negated_services {
    local tmpsvcs="${ENABLED_SERVICES}"
    local service
    for service in ${tmpsvcs//,/ }; do
        if [[ ${service} == -* ]]; then
            tmpsvcs=$(echo ${tmpsvcs}|sed -r "s/(,)?(-)?${service#-}(,)?/,/g")
        fi
    done
    ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
}

# disable_service() removes the services passed as argument to the
# ``ENABLED_SERVICES`` list, if they are present.
#
# For example:
#   disable_service rabbit
#
# This function does not know about the special cases
# for nova, glance, and neutron built into is_service_enabled().
# Uses global ``ENABLED_SERVICES``
# disable_service service [service ...]
function disable_service {
    local tmpsvcs=",${ENABLED_SERVICES},"
    local service
    for service in $@; do
        if is_service_enabled $service; then
            tmpsvcs=${tmpsvcs//,$service,/,}
        fi
    done
    ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
}

# enable_service() adds the services passed as argument to the
# ``ENABLED_SERVICES`` list, if they are not already present.
#
# For example:
#   enable_service qpid
#
# This function does not know about the special cases
# for nova, glance, and neutron built into is_service_enabled().
# Uses global ``ENABLED_SERVICES``
# enable_service service [service ...]
function enable_service {
    local tmpsvcs="${ENABLED_SERVICES}"
    local service
    for service in $@; do
        if ! is_service_enabled $service; then
            tmpsvcs+=",$service"
        fi
    done
    ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
    disable_negated_services
}

# is_service_enabled() checks if the service(s) specified as arguments are
# enabled by the user in ``ENABLED_SERVICES``.
#
# Multiple services specified as arguments are ``OR``'ed together; the test
# is a short-circuit boolean, i.e it returns on the first match.
#
# There are special cases for some 'catch-all' services::
#   **nova** returns true if any service enabled start with **n-**
#   **cinder** returns true if any service enabled start with **c-**
#   **ceilometer** returns true if any service enabled start with **ceilometer**
#   **glance** returns true if any service enabled start with **g-**
#   **neutron** returns true if any service enabled start with **q-**
#   **swift** returns true if any service enabled start with **s-**
#   **trove** returns true if any service enabled start with **tr-**
#   For backward compatibility if we have **swift** in ENABLED_SERVICES all the
#   **s-** services will be enabled. This will be deprecated in the future.
#
# Cells within nova is enabled if **n-cell** is in ``ENABLED_SERVICES``.
# We also need to make sure to treat **n-cell-region** and **n-cell-child**
# as enabled in this case.
#
# Uses global ``ENABLED_SERVICES``
# is_service_enabled service [service ...]
function is_service_enabled {
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local enabled=1
    local services=$@
    local service
    for service in ${services}; do
        [[ ,${ENABLED_SERVICES}, =~ ,${service}, ]] && enabled=0

        # Look for top-level 'enabled' function for this service
        if type is_${service}_enabled >/dev/null 2>&1; then
            # A function exists for this service, use it
            is_${service}_enabled
            enabled=$?
        fi

        # TODO(dtroyer): Remove these legacy special-cases after the is_XXX_enabled()
        #                are implemented

        [[ ${service} == n-cell-* && ${ENABLED_SERVICES} =~ "n-cell" ]] && enabled=0
        [[ ${service} == n-cpu-* && ${ENABLED_SERVICES} =~ "n-cpu" ]] && enabled=0
        [[ ${service} == "nova" && ${ENABLED_SERVICES} =~ "n-" ]] && enabled=0
        [[ ${service} == "cinder" && ${ENABLED_SERVICES} =~ "c-" ]] && enabled=0
        [[ ${service} == "ceilometer" && ${ENABLED_SERVICES} =~ "ceilometer-" ]] && enabled=0
        [[ ${service} == "glance" && ${ENABLED_SERVICES} =~ "g-" ]] && enabled=0
        [[ ${service} == "ironic" && ${ENABLED_SERVICES} =~ "ir-" ]] && enabled=0
        [[ ${service} == "neutron" && ${ENABLED_SERVICES} =~ "q-" ]] && enabled=0
        [[ ${service} == "trove" && ${ENABLED_SERVICES} =~ "tr-" ]] && enabled=0
        [[ ${service} == "swift" && ${ENABLED_SERVICES} =~ "s-" ]] && enabled=0
        [[ ${service} == s-* && ${ENABLED_SERVICES} =~ "swift" ]] && enabled=0
    done
    $xtrace
    return $enabled
}

# Toggle enable/disable_service for services that must run exclusive of each other
#  $1 The name of a variable containing a space-separated list of services
#  $2 The name of a variable in which to store the enabled service's name
#  $3 The name of the service to enable
function use_exclusive_service {
    local options=${!1}
    local selection=$3
    local out=$2
    [ -z $selection ] || [[ ! "$options" =~ "$selection" ]] && return 1
    local opt
    for opt in $options;do
        [[ "$opt" = "$selection" ]] && enable_service $opt || disable_service $opt
    done
    eval "$out=$selection"
    return 0
}


# System Functions
# ================

# Only run the command if the target file (the last arg) is not on an
# NFS filesystem.
function _safe_permission_operation {
    local xtrace=$(set +o | grep xtrace)
    set +o xtrace
    local args=( $@ )
    local last
    local sudo_cmd
    local dir_to_check

    let last="${#args[*]} - 1"

    local dir_to_check=${args[$last]}
    if [ ! -d "$dir_to_check" ]; then
        dir_to_check=`dirname "$dir_to_check"`
    fi

    if is_nfs_directory "$dir_to_check" ; then
        $xtrace
        return 0
    fi

    if [[ $TRACK_DEPENDS = True ]]; then
        sudo_cmd="env"
    else
        sudo_cmd="sudo"
    fi

    $xtrace
    $sudo_cmd $@
}

# Exit 0 if address is in network or 1 if address is not in network
# ip-range is in CIDR notation: 1.2.3.4/20
# address_in_net ip-address ip-range
function address_in_net {
    local ip=$1
    local range=$2
    local masklen=${range#*/}
    local network=$(maskip ${range%/*} $(cidr2netmask $masklen))
    local subnet=$(maskip $ip $(cidr2netmask $masklen))
    [[ $network == $subnet ]]
}

# Add a user to a group.
# add_user_to_group user group
function add_user_to_group {
    local user=$1
    local group=$2

    if [[ -z "$os_VENDOR" ]]; then
        GetOSVersion
    fi

    # SLE11 and openSUSE 12.2 don't have the usual usermod
    if ! is_suse || [[ "$os_VENDOR" = "openSUSE" && "$os_RELEASE" != "12.2" ]]; then
        sudo usermod -a -G "$group" "$user"
    else
        sudo usermod -A "$group" "$user"
    fi
}

# Convert CIDR notation to a IPv4 netmask
# cidr2netmask cidr-bits
function cidr2netmask {
    local maskpat="255 255 255 255"
    local maskdgt="254 252 248 240 224 192 128"
    set -- ${maskpat:0:$(( ($1 / 8) * 4 ))}${maskdgt:$(( (7 - ($1 % 8)) * 4 )):3}
    echo ${1-0}.${2-0}.${3-0}.${4-0}
}

# Gracefully cp only if source file/dir exists
# cp_it source destination
function cp_it {
    if [ -e $1 ] || [ -d $1 ]; then
        cp -pRL $1 $2
    fi
}

# HTTP and HTTPS proxy servers are supported via the usual environment variables [1]
# ``http_proxy``, ``https_proxy`` and ``no_proxy``. They can be set in
# ``localrc`` or on the command line if necessary::
#
# [1] http://www.w3.org/Daemon/User/Proxies/ProxyClients.html
#
#     http_proxy=http://proxy.example.com:3128/ no_proxy=repo.example.net ./stack.sh

# Unused function
#function export_proxy_variables {
#    if isset http_proxy ; then
#        export http_proxy=$http_proxy
#    fi
#    if isset https_proxy ; then
#        export https_proxy=$https_proxy
#    fi
#    if isset no_proxy ; then
#        export no_proxy=$no_proxy
#    fi
#}

# Returns true if the directory is on a filesystem mounted via NFS.
function is_nfs_directory {
    local mount_type=`stat -f -L -c %T $1`
    test "$mount_type" == "nfs"
}

# Return the network portion of the given IP address using netmask
# netmask is in the traditional dotted-quad format
# maskip ip-address netmask
function maskip {
    local ip=$1
    local mask=$2
    local l="${ip%.*}"; local r="${ip#*.}"; local n="${mask%.*}"; local m="${mask#*.}"
    local subnet=$((${ip%%.*}&${mask%%.*})).$((${r%%.*}&${m%%.*})).$((${l##*.}&${n##*.})).$((${ip##*.}&${mask##*.}))
    echo $subnet
}

# Service wrapper to restart services
# restart_service service-name
function restart_service {
    if is_ubuntu; then
        sudo /usr/sbin/service $1 restart
    else
        sudo /sbin/service $1 restart
    fi
}

# Only change permissions of a file or directory if it is not on an
# NFS filesystem.
function safe_chmod {
    _safe_permission_operation chmod $@
}

# Only change ownership of a file or directory if it is not on an NFS
# filesystem.
function safe_chown {
    _safe_permission_operation chown $@
}

# Service wrapper to start services
# start_service service-name
function start_service {
    if is_ubuntu; then
        sudo /usr/sbin/service $1 start
    else
        sudo /sbin/service $1 start
    fi
}

# Service wrapper to stop services
# stop_service service-name
function stop_service {
    if is_ubuntu; then
        sudo /usr/sbin/service $1 stop
    else
        sudo /sbin/service $1 stop
    fi
}


# Restore xtrace
$XTRACE

# Local variables:
# mode: shell-script
# End:

1931

1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973
if [[ $EUID -gt 0 ]]; then
    echo "####################################################"
    echo "#                                                  #"
    echo "#  ERROR: You must be root to run this script!!!!  #"
    echo "#                                                  #"
    echo "####################################################"
    exit 1
fi

export PATH=$PATH:/usr/local/bin:/usr/local/sbin

# XXX a bit brutal but otherwise it cannot work, without tty enabled.  
if [ -f /etc/sudoers ]; then
  sed -i "/requiretty/d" /etc/sudoers
fi

# Include Additional Functions
function download_playbook {
    if [ ! -f /etc/opt/slapcache.cfg ]; then
      slapcache-conf
    fi
    DFILE="/tmp/tmpplaybook$(basename $0).$$/"
    TFILE="archive.tar.gz"
    mkdir -p $DFILE
    cd $DFILE
    slapcache-download --destination=$TFILE
    tar -xzvf $TFILE
    rm $TFILE
}

# Determine what system we are running on.  This provides ``os_VENDOR``,
# ``os_RELEASE``, ``os_UPDATE``, ``os_PACKAGE``, ``os_CODENAME``
# and ``DISTRO``
GetDistro

if [[ ${DISTRO} =~ (-.) ]] && [[ -f /etc/debian_version ]]; then
  apt_get install lsb-release
  GetDistro
fi

# Warn users who aren't on an explicitly supported distro, but allow them to
# override check and attempt installation with ``export FORCE=yes``
1974
if [[ ! ${DISTRO} =~ (jessie|stretch|buster|bullseye|xenial|bionic|focal|rhel7) ]]; then
1975 1976 1977 1978 1979 1980 1981 1982
    echo "WARNING: this script has not been tested on $DISTRO"
    if [[ "$FORCE" != "yes" ]]; then
        die $LINENO "If you wish to run this script anyway run with FORCE=yes"
    fi
fi

# Make sure wheezy backports are available.
if [[ $DISTRO == "wheezy" ]]; then
1983
    echo "deb http://archive.debian.org/debian wheezy-backports main contrib " > /etc/apt/sources.list.d/wheezy-backports.list
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fi

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if is_fedora && [[ $DISTRO =~ rhel7|f20|f19 ]]; then
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    # RHEL requires EPEL for many Ansible dependencies

    # NOTE: We always remove and install latest -- some environments
    # use snapshot images, and if EPEL version updates they break
    # unless we update them to latest version.
    if sudo yum repolist enabled epel | grep -q 'epel'; then
        uninstall_package epel-release || true
    fi

    # This trick installs the latest epel-release from a bootstrap
    # repo, then removes itself (as epel-release installed the
    # "real" repo).
    #
    # You would think that rather than this, you could use
    # $releasever directly in .repo file we create below.  However
    # RHEL gives a $releasever of "6Server" which breaks the path;
    # see https://bugzilla.redhat.com/show_bug.cgi?id=1150759
    cat <<EOF | sudo tee /etc/yum.repos.d/epel-bootstrap.repo
[epel-bootstrap]
name=Bootstrap EPEL
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-7&arch=\$basearch
failovermethod=priority
enabled=0
gpgcheck=0
EOF
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    yum clean all
    yum makecache
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    yum update -y
    yum_install yum-utils
    # Enable a bootstrap repo.  It is removed after finishing
    # the epel-release installation.
    yum-config-manager --enable epel-bootstrap
    yum_install epel-release || \
        die $LINENO "Error installing EPEL repo, cannot continue"
    # EPEL rpm has installed it's version
    rm -f /etc/yum.repos.d/epel-bootstrap.repo

    # ... and also optional to be enabled
    is_package_installed yum-utils || install_package yum-utils
    yum-config-manager --enable rhel-7-server-optional-rpms

fi

if is_fedora && [[ $DISTRO == "rhel6" ]]; then
    sed -i "/requiretty/d" /etc/sudoers
    if sudo yum repolist enabled epel | grep -q 'epel'; then
        uninstall_package epel-release || true
    fi

    cat <<EOF | sudo tee /etc/yum.repos.d/epel-bootstrap.repo
[epel-bootstrap]
name=Bootstrap EPEL
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-6&arch=\$basearch
failovermethod=priority
enabled=0
gpgcheck=0
EOF
    yum update -y
    yum_install yum-utils
    yum-config-manager --enable epel-bootstrap
    yum_install epel-release || \
        die $LINENO "Error installing EPEL repo, cannot continue"
    # EPEL rpm has installed it's version
    rm -f /etc/yum.repos.d/epel-bootstrap.repo

    is_package_installed yum-utils || install_package yum-utils
    yum-config-manager --enable rhel-6-server-optional-rpms

    is_package_installed libselinux-python || install_package libselinux-python
fi

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is_package_installed unzip || install_package unzip
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is_package_installed openssl || install_package openssl
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is_package_installed ansible || install_package ansible

if ! is_ubuntu || [[ $DISTRO = wheezy || $DISTRO == jessie || $DISTRO == stretch || $DISTRO == xenial || $DISTRO == bionic ]]; then
  is_package_installed python-pip || install_package python-pip
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else
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  # Ansible is using python3 now
  is_package_installed python3-pip || install_package python3-pip
fi

if is_ubuntu && [[ $DISTRO == focal || $DISTRO == buster ]]; then
  # install python2 in distro where python2 is not installed by default and ansible python interpreter is still python2
  is_package_installed python || install_package python
fi

if is_fedora && [[ $DISTRO == "f26" ]]; then
  is_package_installed python2-rpm || install_package python2-rpm
  is_package_installed yum || install_package yum
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fi

if is_ubuntu && [[ $DISTRO == "trusty" ]]; then
  is_package_installed python-apt || install_package python-apt
  is_package_installed python-pycurl || install_package python-pycurl
fi

if is_ubuntu && [[ $DISTRO == "vivid" ]]; then
  is_package_installed python-apt || install_package python-apt
  is_package_installed python-pycurl || install_package python-pycurl
fi

if [[ $DISTRO == "LinuxMint-17.2" ]]; then
  is_package_installed python-apt || install_package python-apt
  is_package_installed python-pycurl || install_package python-pycurl
fi

ANSIBLE_PLUGIN_LOCATION="/usr/share/ansible_plugins/callback_plugins/"
mkdir -p $ANSIBLE_PLUGIN_LOCATION
/bin/cat << EOF > $ANSIBLE_PLUGIN_LOCATION/log_parse.py
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from __future__ import absolute_import
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import os
import time
import json
import ansible

baseModule = object
ANSIBLE_VERSION = 1

if hasattr(ansible, 'plugins') and  hasattr(ansible.plugins, 'callback'):
  baseModule = ansible.plugins.callback.CallbackBase
  ANSIBLE_VERSION = 2

class CallbackModule(baseModule):
    """
    logs playbook results, per host, in /var/log/ansible/hosts
    """
    log_path = '/var/log/ansible/hosts'
    fd_list = {}

    def __init__(self):

      if ANSIBLE_VERSION > 1:
        super(CallbackModule, self).__init__()

      if not os.path.exists(self.log_path):
        os.makedirs(self.log_path)
      else:
        for filename in os.listdir(self.log_path):
          filepath = os.path.join(self.log_path, filename)
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          if os.path.isfile(filepath):
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            os.unlink(filepath)

    def writeLog(self, host, category, content):
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      if category not in self.fd_list:
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        self.fd_list[category] = open(
          os.path.join(self.log_path, '%s_%s' % (host, category)), "a"
        )

      self.fd_list[category].write(content + '\n')

    def log(self, host, category, data, ignore_errors=False):
      if host == "localhost":
        host = "127.0.0.1" # keep compatibility

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      if type(data) is dict:
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        if '_ansible_verbose_override' in data:
          # avoid logging extraneous data
          return

        content = json.dumps(data)

        if ignore_errors:
          category = '%s_IGNORED' % category
        self.writeLog(host, category, content)

    def _stats(self, stats):
      for key in self.fd_list:
        self.fd_list[key].close()

    def runner_on_failed(self, host, res, ignore_errors=False):
      self.log(host, 'FAILED', res, ignore_errors)

    def runner_on_ok(self, host, res):
      self.log(host, 'OK', res)

    def runner_on_skipped(self, host, item=None):
      pass

    def runner_on_unreachable(self, host, res):
      self.log(host, 'UNREACHABLE', res)

    def runner_on_async_failed(self, host, res, jid):
      self.log(host, 'ASYNC_FAILED', res)

    def playbook_on_import_for_host(self, host, imported_file):
      self.log(host, 'IMPORTED', imported_file)

    def playbook_on_not_import_for_host(self, host, missing_file):
      self.log(host, 'NOTIMPORTED', missing_file)

    def playbook_on_stats(self, stats):
      self._stats(stats)

EOF

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ansible localhost -m pip -a name=setuptools --connection=local
ansible localhost -m pip -a name=wheel --connection=local
ansible localhost -m pip -a name=slapcache --connection=local
ansible localhost -m pip -a name=requests --connection=local

if [ ! -f /usr/share/ansible_plugins/mitogen.zip ]; then
    wget -O /usr/share/ansible_plugins/mitogen.zip https://shacache.nxdcdn.com/3a935ff257ddc0ad4e0f23d71681e026f14f309f4bed0a8e2a217da9b294be2c676196703f0dde856ece49d711d0221deae70812f035b24aa5cdd0ca02790e85
    unzip /usr/share/ansible_plugins/mitogen.zip -d /usr/share/ansible_plugins/mitogen/
    mv /usr/share/ansible_plugins/mitogen/mitogen-*/* /usr/share/ansible_plugins/mitogen/
fi

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# Include Additional Functions
if [ ! -f /etc/opt/slapcache.cfg ]; then
  slapcache-conf
fi
sed -i "s/key = slapos-global-key/key = slapos-global-official-vifib-key/g" /etc/opt/slapcache.cfg 

DFILE="/tmp/tmpplaybook_unstable$(basename $0).$$/"
TFILE="archive.tar.gz"
mkdir -p $DFILE
cd $DFILE
wget -O $TFILE http://10.0.2.100/playbook.tar.gz
tar -xzvf $TFILE
rm $TFILE

clear

echo "Starting Ansible playbook:"
ansible-playbook $TEST_YML_PATH -i hosts --connection=local