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Commit 99b29a87 authored by Łukasz Nowak's avatar Łukasz Nowak
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software/kvm: Simple "Boot image" selection 

Thanks to using to draft-06 schema oneOf the "Boot image" field provides a
list of images to select one to boot.
parent 4b83a276
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Showing with 435 additions and 46 deletions
software/kvm/buildout.hash.cfg
View file @ 99b29a87
......@@ -19,11 +19,11 @@ md5sum = e6d5c7bb627b4f1d3e7c99721b7c58fe
[template-kvm]
filename = instance-kvm.cfg.jinja2
md5sum = 2fb085450d33e2674b0c1d4ab2055762
md5sum = 23493c541efef97ac5fe435114910b8e
[template-kvm-cluster]
filename = instance-kvm-cluster.cfg.jinja2.in
md5sum = be228c9e39682be53aaba491f858f848
md5sum = bdf8549a76ec61e125d51a05e611e004
[template-kvm-resilient]
filename = instance-kvm-resilient.cfg.jinja2
......@@ -55,7 +55,7 @@ md5sum = b7e87479a289f472b634a046b44b5257
[template-kvm-run]
filename = template/template-kvm-run.in
md5sum = 536c3b208fec9fa29ba6223432cd3509
md5sum = 84e40e43a74559f3b31677c2b2052360
[template-kvm-controller]
filename = template/kvm-controller-run.in
......@@ -87,4 +87,4 @@ md5sum = 7e4b54f8172c364bd12d28b07f8b1600
[image-download-config-creator]
_update_hash_filename_ = template/image-download-config-creator.py
md5sum = 7f6cd75096695922fddbba1c9292cef5
md5sum = 54261e418ab9860efe73efd514c4d47f
software/kvm/instance-kvm-cluster-input-schema.json
View file @ 99b29a87
......@@ -48,6 +48,40 @@
"description": "The list shall be list of direct URLs to images, followed by hash (#), then by image MD5SUM. Each image shall appear on newline, like: \"https://example.com/image.iso#06226c7fac5bacfa385872a19bb99684<newline>https://example.com/another-image.iso#31b40d58b18e038498ddb46caea1361c\". They will be provided in KVM image list according to the order on the list. After updating the list, the instance has to be restarted to refresh it. Amount of images is limited to 4, and one image can be maximum 5G. Image will be downloaded and checked against its MD5SUM 4 times, then it will be considered as impossible to download with given MD5SUM. Each image has to be downloaded in time shorter than 4 hours, so in case of very slow images to access, it can take up to 16 hours to download all of them. Note: The instance has to be restarted in order to update the list of available images in the VM.",
"type": "string",
"textarea": "true"
},
"boot-image-url-select": {
"title": "Boot image",
"type": "array",
"oneOf": [
{
"const": ["https://shacache.nxdcdn.com/0a6aee1d9aafc1ed095105c052f9fdd65ed00ea9274188c9cd0072c8e6838ab40e246d45a1e6956d74ef1b04a1fc042151762f25412e9ff0cbf49418eef7992e#a3ebc76aec372808ad80000108a2593a"],
"title": "Debian Buster 10.5 netinst x86_64"
},
{
"const": ["https://shacache.nxdcdn.com/ce5ddfdbdaccdf929b7fe321212356347d82a02f6b7733427282b416f113d91e587682b003e9d376ac189c3b731595c50c236962aadf2720c16d9f36913577c0#23bf2a2d60271e553e63525e794415f1"],
"title": "Centos 8.2004 Minimal x86_64"
},
{
"const": ["https://shacache.nxdcdn.com/302c990c6d69575ff24c96566e5c7e26bf36908abb0cd546e22687c46fb07bf8dba595bf77a9d4fd9ab63e75c0437c133f35462fd41ea77f6f616140cd0e5e6a#f3a306f40e4a313fb5a584d73b3dee8f"],
"title": "Ubuntu Focal 20.04.1 Live Server x86_64"
},
{
"const": ["https://shacache.nxdcdn.com/6635269a7eb6fbd6b85fda40cd94f14a27bf53cb1fc82ffcce9fe386a025a43e1ab681db7e8cec50416bfbfc90262f0d95273686a101c74b3f17646f0a34c85b#3708a59af6cf820a95cafe0ae73ac399"],
"title": "openSUSE Leap 15.2 NET x86_64"
},
{
"const": ["https://shacache.nxdcdn.com/fc17e8c6ae0790162f4beb8fa6226d945cff638429588999b3a08493ff27b280dc2939fba825ae04be1d9082ea8d7c3c002c5e4c39fbbcf88b8ab5104619e28a#ebcdb2223a77f098af3923fe1fa180aa"],
"title": "Arch Linux 2020.09.01 x86_64"
},
{
"const": ["https://shacache.nxdcdn.com/c5a511f349a1146b615e6fab9c24f9be4362046adcf24f0ff82c470d361fac5f6628895e2110ebf8ff87db49d4c413a0a332699da6b1bec64275e0c17a15b999#ca7a1e555c04b4d9a549065fa2ddf713"],
"title": "Fedora Server 32-1.6 netinst x86_64"
},
{
"const": ["https://shacache.nxdcdn.com/6c355def68b3c0427f21598cb054ffc893568902f205601ac60f192854769b31bc9cff8eeb6ce99ef975a8fb887d8d3e56fc6cd5ea5cb4b3bba1175c520047cb#57088b77f795ca44b00971e44782ee23"],
"title": "FreeBSD 12.1 RELEASE bootonly x86_64"
}
]
}
},
"type": "object"
......
software/kvm/instance-kvm-cluster.cfg.jinja2.in
View file @ 99b29a87
......@@ -131,6 +131,10 @@ config-keyboard-layout-language = {{ dumps(kvm_parameter_dict.get('keyboard-layo
{#- play nice: if parameter was not constructed by the original request, do not send it at all #}
config-boot-image-url-list = {{ kvm_parameter_dict['boot-image-url-list'] }}
{%- endif %}
{%- if 'boot-image-url-select' in kvm_parameter_dict %}
{#- play nice: if parameter was not constructed by the original request, do not send it at all #}
config-boot-image-url-select = {{ kvm_parameter_dict['boot-image-url-select'] }}
{%- endif %}
config-type = cluster
{% set bootstrap_script_url = slapparameter_dict.get('bootstrap-script-url', kvm_parameter_dict.get('bootstrap-script-url', '')) -%}
......
software/kvm/instance-kvm-input-schema.json
View file @ 99b29a87
{
"type": "object",
"$schema": "http://json-schema.org/draft-04/schema",
"$schema": "http://json-schema.org/draft-06/schema",
"title": "Input Parameters",
"properties": {
"enable-device-hotplug": {
......@@ -371,6 +371,54 @@
"description": "The list shall be list of direct URLs to images, followed by hash (#), then by image MD5SUM. Each image shall appear on newline, like: \"https://example.com/image.iso#06226c7fac5bacfa385872a19bb99684<newline>https://example.com/another-image.iso#31b40d58b18e038498ddb46caea1361c\". They will be provided in KVM image list according to the order on the list. After updating the list, the instance has to be restarted to refresh it. Amount of images is limited to 4, and one image can be maximum 5G. Image will be downloaded and checked against its MD5SUM 4 times, then it will be considered as impossible to download with given MD5SUM. Each image has to be downloaded in time shorter than 4 hours, so in case of very slow images to access, it can take up to 16 hours to download all of them. Note: The instance has to be restarted in order to update the list of available images in the VM.",
"type": "string",
"textarea": "true"
},
"boot-image-url-select": {
"title": "Boot image",
"type": "array",
"oneOf": [
{
"const": [
"https://shacache.nxdcdn.com/0a6aee1d9aafc1ed095105c052f9fdd65ed00ea9274188c9cd0072c8e6838ab40e246d45a1e6956d74ef1b04a1fc042151762f25412e9ff0cbf49418eef7992e#a3ebc76aec372808ad80000108a2593a"
],
"title": "Debian Buster 10.5 netinst x86_64"
},
{
"const": [
"https://shacache.nxdcdn.com/ce5ddfdbdaccdf929b7fe321212356347d82a02f6b7733427282b416f113d91e587682b003e9d376ac189c3b731595c50c236962aadf2720c16d9f36913577c0#23bf2a2d60271e553e63525e794415f1"
],
"title": "Centos 8.2004 Minimal x86_64"
},
{
"const": [
"https://shacache.nxdcdn.com/302c990c6d69575ff24c96566e5c7e26bf36908abb0cd546e22687c46fb07bf8dba595bf77a9d4fd9ab63e75c0437c133f35462fd41ea77f6f616140cd0e5e6a#f3a306f40e4a313fb5a584d73b3dee8f"
],
"title": "Ubuntu Focal 20.04.1 Live Server x86_64"
},
{
"const": [
"https://shacache.nxdcdn.com/6635269a7eb6fbd6b85fda40cd94f14a27bf53cb1fc82ffcce9fe386a025a43e1ab681db7e8cec50416bfbfc90262f0d95273686a101c74b3f17646f0a34c85b#3708a59af6cf820a95cafe0ae73ac399"
],
"title": "openSUSE Leap 15.2 NET x86_64"
},
{
"const": [
"https://shacache.nxdcdn.com/fc17e8c6ae0790162f4beb8fa6226d945cff638429588999b3a08493ff27b280dc2939fba825ae04be1d9082ea8d7c3c002c5e4c39fbbcf88b8ab5104619e28a#ebcdb2223a77f098af3923fe1fa180aa"
],
"title": "Arch Linux 2020.09.01 x86_64"
},
{
"const": [
"https://shacache.nxdcdn.com/c5a511f349a1146b615e6fab9c24f9be4362046adcf24f0ff82c470d361fac5f6628895e2110ebf8ff87db49d4c413a0a332699da6b1bec64275e0c17a15b999#ca7a1e555c04b4d9a549065fa2ddf713"
],
"title": "Fedora Server 32-1.6 netinst x86_64"
},
{
"const": [
"https://shacache.nxdcdn.com/6c355def68b3c0427f21598cb054ffc893568902f205601ac60f192854769b31bc9cff8eeb6ce99ef975a8fb887d8d3e56fc6cd5ea5cb4b3bba1175c520047cb#57088b77f795ca44b00971e44782ee23"
],
"title": "FreeBSD 12.1 RELEASE bootonly x86_64"
}
]
}
}
}
software/kvm/instance-kvm.cfg.jinja2
View file @ 99b29a87
......@@ -10,6 +10,7 @@
{% set nat_rule_list = slapparameter_dict.get('nat-rules', '22 80 443') -%}
{% set disk_device_path = slapparameter_dict.get('disk-device-path', None) -%}
{% set boot_image_url_list_enabled = 'boot-image-url-list' in slapparameter_dict %}
{% set boot_image_url_select_enabled = 'boot-image-url-select' in slapparameter_dict %}
{% set cpu_max_count = dumps(slapparameter_dict.get('cpu-max-count', int(slapparameter_dict.get('cpu-count', 1)) + 1)) %}
{% set ram_max_size = dumps(slapparameter_dict.get('ram-max-size', int(slapparameter_dict.get('ram-size', 1024)) + 512)) %}
{% set extends_list = [] -%}
......@@ -59,6 +60,11 @@ boot-image-url-list-repository = ${:srv}/boot-image-url-list-repository
boot-image-url-list-var = ${:var}/boot-image-url-list
boot-image-url-list-expose = ${monitor-directory:private}/boot-image-url-list
{%- endif %}
{%- if boot_image_url_select_enabled %}
boot-image-url-select-repository = ${:srv}/boot-image-url-select-repository
boot-image-url-select-var = ${:var}/boot-image-url-select
boot-image-url-select-expose = ${monitor-directory:private}/boot-image-url-select
{%- endif %}
[create-mac]
recipe = slapos.cookbook:generate.mac
......@@ -73,9 +79,116 @@ recipe = slapos.cookbook:generate.password
storage-path = ${directory:srv}/passwd
bytes = 8
{% if boot_image_url_select_enabled %}
## boot-image-url-select support BEGIN
[empty-file-state-base-select-promise]
<= monitor-promise-base
module = check_file_state
name = ${:_buildout_section_name_}.py
config-state = empty
# It's very hard to put the username and password correctly, after schema://
# and before the host, as it's not the way how one can use monitor provided
# information, so just show the information in the URL
config-url = ${monitor-base:base-url}/private/boot-image-url-select/${:filename} with username ${monitor-publish-parameters:monitor-user} and password ${monitor-publish-parameters:monitor-password}
[boot-image-url-select-source-config]
# generates configuration of the image from the user parameter
# special "magic" is used, to properly support multiline boot-image-url-select
# but in the same time correctly generate the configuration file
recipe = slapos.recipe.template:jinja2
template = inline:
{#- Do special trick to support boot-image-url-select being None, if key is present with value "" #}
{%- raw %}
{%- set boot_image_url_select = slap_parameter.get('boot-image-url-select') or '' %}
{%- if boot_image_url_select == 'None' %}
{#- That's insane protection, is it 'None' because of type = array? #}
{%- set boot_image_url_select = '' %}
{%- endif %}
{{ boot_image_url_select }}
{% endraw -%}
context =
section slap_parameter slap-parameter
rendered = ${directory:etc}/boot-image-url-select.json
[boot-image-url-select-processed-config]
# compares if the current configuration has been used by
# the boot-image-url-select-download, if not, exposes it as not empty file with
# information
recipe = slapos.recipe.build
install =
import os
import hashlib
if not os.path.exists(location):
os.mkdir(location)
with open('${:state-file}', 'w') as state_handler:
try:
with open('${:config-file}', 'rb') as config_handler, open('${:processed-md5sum}') as processed_handler:
config_md5sum = hashlib.md5(config_handler.read()).hexdigest()
processed_md5sum = processed_handler.read()
if config_md5sum == processed_md5sum:
state_handler.write('')
else:
state_handler.write('config %s != processed %s' % (config_md5sum, processed_md5sum))
except Exception as e:
state_handler.write(str(e))
update = ${:install}
config-file = ${boot-image-url-select-source-config:rendered}
state-filename = boot-image-url-select-processed-config.state
state-file = ${directory:boot-image-url-select-expose}/${:state-filename}
processed-md5sum = ${directory:boot-image-url-select-var}/update-image-processed.md5sum
[boot-image-url-select-processed-config-promise]
# promise to check if the configuration provided by the user has been already
# processed by the boot-image-url-select-download script, which runs asynchronously
<= empty-file-state-base-select-promise
filename = ${boot-image-url-select-processed-config:state-filename}
config-filename = ${boot-image-url-select-processed-config:state-file}
[boot-image-url-select-json-config]
# generates json configuration from user configuration
recipe = plone.recipe.command
command = {{ python_executable }} {{ image_download_config_creator }} ${boot-image-url-select-source-config:rendered} ${:rendered} ${directory:boot-image-url-select-repository} ${:error-state-file}
update-command = ${:command}
rendered = ${directory:boot-image-url-select-var}/boot-image-url-select.json
error-state-filename = boot-image-url-select-json-config-error.txt
error-state-file = ${directory:boot-image-url-select-expose}/${:error-state-filename}
[boot-image-url-select-config-state-promise]
# promise to check if configuration has been parsed without errors
<= empty-file-state-base-select-promise
filename = ${boot-image-url-select-json-config:error-state-filename}
config-filename = ${boot-image-url-select-json-config:error-state-file}
[boot-image-url-select-download-wrapper]
# wrapper to execute boot-image-url-select-download on each run
recipe = slapos.cookbook:wrapper
wrapper-path = ${directory:scripts}/boot-image-url-select-updater
command-line = {{ python_executable }} {{ image_download_controller }} ${boot-image-url-select-json-config:rendered} {{ curl_executable_location }} ${:md5sum-state-file} ${:error-state-file} ${boot-image-url-select-processed-config:processed-md5sum}
md5sum-state-filename = boot-image-url-select-download-controller-md5sum-fail.json
md5sum-state-file = ${directory:boot-image-url-select-expose}/${:md5sum-state-filename}
error-state-filename = boot-image-url-select-download-controller-error.text
error-state-file = ${directory:boot-image-url-select-expose}/${:error-state-filename}
hash-existing-files = ${buildout:directory}/software_release/buildout.cfg
[boot-image-url-select-download-md5sum-promise]
# promise to report errors with problems with calculating md5sum of the
# downloaded images
<= empty-file-state-base-select-promise
filename = ${boot-image-url-select-download-wrapper:md5sum-state-filename}
config-filename = ${boot-image-url-select-download-wrapper:md5sum-state-file}
[boot-image-url-select-download-state-promise]
# promise to report errors during download
<= empty-file-state-base-select-promise
filename = ${boot-image-url-select-download-wrapper:error-state-filename}
config-filename = ${boot-image-url-select-download-wrapper:error-state-file}
## boot-image-url-select support END
{% endif %} {# if boot_image_url_select_enabled #}
{% if boot_image_url_list_enabled %}
## boot-image-url-list support BEGIN
[empty-file-state-base-promise]
[empty-file-state-base-list-promise]
<= monitor-promise-base
module = check_file_state
name = ${:_buildout_section_name_}.py
......@@ -130,7 +243,7 @@ processed-md5sum = ${directory:boot-image-url-list-var}/update-image-processed.m
[boot-image-url-list-processed-config-promise]
# promise to check if the configuration provided by the user has been already
# processed by the boot-image-url-list-download script, which runs asynchronously
<= empty-file-state-base-promise
<= empty-file-state-base-list-promise
filename = ${boot-image-url-list-processed-config:state-filename}
config-filename = ${boot-image-url-list-processed-config:state-file}
......@@ -145,7 +258,7 @@ error-state-file = ${directory:boot-image-url-list-expose}/${:error-state-filena
[boot-image-url-list-config-state-promise]
# promise to check if configuration has been parsed without errors
<= empty-file-state-base-promise
<= empty-file-state-base-list-promise
filename = ${boot-image-url-list-json-config:error-state-filename}
config-filename = ${boot-image-url-list-json-config:error-state-file}
......@@ -163,13 +276,13 @@ hash-existing-files = ${buildout:directory}/software_release/buildout.cfg
[boot-image-url-list-download-md5sum-promise]
# promise to report errors with problems with calculating md5sum of the
# downloaded images
<= empty-file-state-base-promise
<= empty-file-state-base-list-promise
filename = ${boot-image-url-list-download-wrapper:md5sum-state-filename}
config-filename = ${boot-image-url-list-download-wrapper:md5sum-state-file}
[boot-image-url-list-download-state-promise]
# promise to report errors during download
<= empty-file-state-base-promise
<= empty-file-state-base-list-promise
filename = ${boot-image-url-list-download-wrapper:error-state-filename}
config-filename = ${boot-image-url-list-download-wrapper:error-state-file}
## boot-image-url-list support END
......@@ -200,6 +313,11 @@ boot-image-url-list-json-config = ${boot-image-url-list-json-config:rendered}
{% else %}
boot-image-url-list-json-config =
{% endif %}
{% if boot_image_url_select_enabled %}
boot-image-url-select-json-config = ${boot-image-url-select-json-config:rendered}
{% else %}
boot-image-url-select-json-config =
{% endif %}
nbd-host = ${slap-parameter:nbd-host}
nbd-port = ${slap-parameter:nbd-port}
nbd2-host = ${slap-parameter:nbd2-host}
......@@ -957,6 +1075,13 @@ parts =
boot-image-url-list-download-state-promise
boot-image-url-list-processed-config-promise
{% endif %}
{% if boot_image_url_select_enabled %}
boot-image-url-select-download-wrapper
boot-image-url-select-config-state-promise
boot-image-url-select-download-md5sum-promise
boot-image-url-select-download-state-promise
boot-image-url-select-processed-config-promise
{% endif %}
{% if additional_frontend %}
frontend-additional-promise
{% endif %}
......
software/kvm/template/image-download-config-creator.py
View file @ 99b29a87
......@@ -24,7 +24,18 @@ if __name__ == "__main__":
image_number = 0
data = fh.read()
configuration_dict['config-md5sum'] = hashlib.md5(data).hexdigest()
for entry in data.decode('utf-8').split():
if source_configuration.endswith('.json'):
data = data.strip()
data_list = []
if len(data):
try:
data_list = json.loads(data)
except Exception:
error_list.append('ERR: Data is not a JSON')
data_list = []
else:
data_list = data.decode('utf-8').split()
for entry in data_list:
split_entry = entry.split('#')
if len(split_entry) != 2:
error_list.append('ERR: entry %r is incorrect' % (entry,))
......
software/kvm/template/template-kvm-run.in
View file @ 99b29a87
......@@ -100,6 +100,7 @@ enable_device_hotplug = '{{ parameter_dict.get("enable-device-hotplug") }}'.lowe
logfile = '{{ parameter_dict.get("log-file") }}'
boot_image_url_list_json_config = '{{ parameter_dict.get("boot-image-url-list-json-config") }}'
boot_image_url_select_json_config = '{{ parameter_dict.get("boot-image-url-select-json-config") }}'
if hasattr(ssl, '_create_unverified_context') and url_check_certificate == 'false':
opener = FancyURLopener(context=ssl._create_unverified_context())
......@@ -370,6 +371,18 @@ for nbd_ip, nbd_port in nbd_list:
'-drive',
'file=nbd:[%s]:%s,media=cdrom' % (nbd_ip, nbd_port)])
else:
if boot_image_url_select_json_config:
# Support boot-image-url-select
with open(boot_image_url_select_json_config) as fh:
image_config = json.load(fh)
if image_config['error-amount'] == 0:
for image in sorted(image_config['image-list'], key=lambda k: k['link']):
link = os.path.join(image_config['destination-directory'], image['link'])
if os.path.exists(link) and os.path.islink(link):
kvm_argument_list.extend([
'-drive',
'file=%s,media=cdrom' % (link,)
])
if boot_image_url_list_json_config:
# Support boot-image-url-list
with open(boot_image_url_list_json_config) as fh:
......
software/kvm/test/test.py
View file @ 99b29a87
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