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Xiaowu Zhang
slapos.recipe.build
Commits
d63a5883
Commit
d63a5883
authored
Oct 28, 2016
by
Julien Muchembled
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vm: use a normal user account by default
parent
f8c6faef
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55 additions
and
27 deletions
+55
-27
README.rst
README.rst
+27
-7
slapos/recipe/vm.py
slapos/recipe/vm.py
+28
-20
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README.rst
View file @
d63a5883
...
...
@@ -626,10 +626,6 @@ Currently, it only produces `raw` images, in `discard` mode (see ``-drive``
QEMU option): combined the use of ``discard`` mount option, this minimizes
the used space on disk.
If the ``ssh`` package is installed, which is required for
`slapos.recipe.build:vm.run`_, an SSH key is automatically created with
``ssh-keygen``, and it will be used to connect as `root` user.
Options
~~~~~~~
...
...
@@ -690,6 +686,27 @@ ISO sections
<arch>.initrd
Path to initrd image inside the ISO.
User setup
~~~~~~~~~~
This recipe comes with 2 specific rules:
- If the `ssh` package is installed, which is required for
`slapos.recipe.build:vm.run`_, an SSH key is automatically created with
``ssh-keygen``, and it can be used to connect as the normal user account,
or as `root` if ``passwd/make-user`` is ``false``.
- If the user account is locked and if ``sudo`` is installed, a sudo rule is
added to allow this account to become root without password.
By default, both SSH and sudo are installed, a `slapos` user account is created
and both root and user accounts are locked.
For more information about the ``passwd/*`` preseed values, you can look at
the ``user-setup-udeb`` package at
https://anonscm.debian.org/cgit/d-i/user-setup.git/tree/
and in particular the ``user-setup-ask`` and ``user-setup-apply`` scripts.
Example
~~~~~~~
...
...
@@ -765,6 +782,9 @@ stop-ssh
Tell `reboot` function how to stop SSH (see Helpers_).
Default: systemctl stop ssh
user
SSH connects with this user. Default: slapos
wait-ssh
Time to wait for (re)boot. The recipe fails if it can't connect to the SSH
server after this number of seconds. Default: 60
...
...
@@ -815,9 +835,9 @@ Example
<= vm-run-base
repository = `map ${userhosts-repository:location}`
command =
git clone -s ${:repository}
/
userhosts
cd
/
userhosts
mk-build-deps -irt 'apt-get -y'
git clone -s ${:repository} userhosts
cd userhosts
mk-build-deps -ir
s sudo -
t 'apt-get -y'
dpkg-buildpackage -uc -b -jauto
cd ..
mv *.changes *.deb $PARTDIR
...
...
slapos/recipe/vm.py
View file @
d63a5883
...
...
@@ -29,10 +29,11 @@ import base64, os, select, shutil, socket
import
subprocess
,
sys
,
tempfile
,
threading
,
time
from
contextlib
import
contextmanager
from
os.path
import
join
from
slapos.recipe
import
EnvironMixin
,
generatePassword
,
logger
,
rmtree
from
slapos.recipe
import
EnvironMixin
,
logger
,
rmtree
from
zc.buildout
import
UserError
ARCH
=
os
.
uname
()[
4
]
USER
=
'slapos'
@
contextmanager
def
building_directory
(
directory
):
...
...
@@ -115,12 +116,14 @@ class InstallDebianRecipe(BaseRecipe):
finish-install/reboot_in_progress = note
preseed/url = file:///dev/null
passwd/make-user = true
passwd/root-login = false
clock-setup/ntp = false
time/zone = UTC
language = C
country = FR
keymap = us
passwd/make-user = false
partman-auto/method = regular
partman-auto/expert_recipe = : 1 1 -1 ext4 $primary{ } $bootable{ } method{ format } format{ } use_filesystem{ } filesystem{ ext4 } mountpoint{ / } options/discard{ } options/noatime{ } .
"""
...
...
@@ -176,11 +179,16 @@ class InstallDebianRecipe(BaseRecipe):
packages
=
options
.
get
(
'packages'
,
'ssh'
).
split
()
if
packages
:
cmdline
[
'pkgsel/include'
]
=
','
.
join
(
packages
)
if
'passwd/root-password'
in
cmdline
:
root_password
=
None
if
(
'false'
,
'true'
).
index
(
cmdline
[
'passwd/make-user'
]):
user
=
cmdline
.
setdefault
(
'passwd/username'
,
USER
)
cmdline
.
setdefault
(
'passwd/user-fullname'
,
''
)
if
not
(
cmdline
.
get
(
'passwd/user-password'
)
or
cmdline
.
get
(
'passwd/user-password-crypted'
)):
cmdline
[
'passwd/user-password-crypted'
]
=
'!'
else
:
cmdline
[
'passwd/root-password'
]
=
root_password
=
\
cmdline
[
'passwd/root-password-again'
]
=
generatePassword
()
user
=
None
env
=
self
.
environ
location
=
self
.
vm
...
...
@@ -192,8 +200,12 @@ class InstallDebianRecipe(BaseRecipe):
with
open
(
key
)
as
f
:
os
.
remove
(
key
)
key
=
f
.
read
().
strip
()
cmd
=
"mkdir -m 0700 ~/.ssh && echo %s > ~/.ssh/authorized_keys"
%
key
self
.
late_command
.
append
(
"su -c '%s' %s"
%
(
cmd
,
user
)
if
user
else
cmd
)
if
user
and
cmdline
.
get
(
'passwd/user-password-crypted'
)
==
'!'
:
self
.
late_command
.
append
(
"mkdir -m 0700 ~/.ssh && echo %s > ~/.ssh/authorized_keys"
%
key
)
"(cd /etc/sudoers.d && echo %s ALL=NOPASSWD: ALL >%s && chmod 440 %s)"
%
(
user
,
user
,
user
))
if
self
.
late_command
:
cmdline
[
'preseed/late_command'
]
=
(
'cd /target && echo %s|usr/bin/base64 -d|chroot . sh'
...
...
@@ -227,23 +239,17 @@ class InstallDebianRecipe(BaseRecipe):
'DOS/MBR boot sector'
):
raise
Exception
(
'non bootable image'
)
if
root_password
:
fd
=
os
.
open
(
join
(
location
,
'passwd'
),
open_flags
,
0600
)
try
:
os
.
write
(
fd
,
"root:%s
\
n
"
%
root_password
)
finally
:
os
.
close
(
fd
)
return
[
location
]
class
RunRecipe
(
BaseRecipe
):
command
=
"""set -e
[ "$USER" = root ] || SUDO=sudo
reboot() {
unset -f reboot
%s
(while pgrep -x sshd; do sleep 1; done >/dev/null; reboot
$SUDO
%s
(while pgrep -x sshd; do sleep 1; done >/dev/null;
exec $SUDO
reboot
) >/dev/null 2>&1 &
exit
}
...
...
@@ -252,9 +258,9 @@ map() {
echo /mnt/buildout$x
}
PARTDIR=`map %s`
(
cd /mnt; set %s; mkdir -p $*; for tag; do
mount -t 9p -o trans=virtio,version=9p2000.L,noatime $tag $tag
done)
$SUDO sh -c '
cd /mnt; set %s; mkdir -p $*; for tag; do
mount -t 9p -o trans=virtio,version=9p2000.L,noatime $tag $tag
done'
"""
def
__init__
(
self
,
buildout
,
name
,
options
):
...
...
@@ -285,6 +291,7 @@ PARTDIR=`map %s`
location
,
' '
.
join
(
self
.
mount_dict
))
commands
=
map
(
options
.
__getitem__
,
options
.
get
(
'commands'
,
'command'
).
split
())
user
=
options
.
get
(
'user'
,
USER
)
hostfwd_retries
=
9
wait_ssh
=
int
(
options
.
get
(
'wait-ssh'
)
or
60
)
with
building_directory
(
location
):
...
...
@@ -336,7 +343,8 @@ PARTDIR=`map %s`
'-o'
,
'BatchMode=yes'
,
'-o'
,
'UserKnownHostsFile='
+
os
.
devnull
,
'-o'
,
'StrictHostKeyChecking=no'
,
'-p'
,
str
(
ssh
[
1
]),
'root@'
+
ssh
[
0
],
init
+
command
),
env
=
env
)
'-p'
,
str
(
ssh
[
1
]),
user
+
'@'
+
ssh
[
0
],
init
+
command
),
env
=
env
)
finally
:
p
.
stop
()
break
...
...
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