Merge pull request #61 from LucasBoisserie/helm_cli

Add helm, helm_info, and helm_repository modules
This commit is contained in:
Jeff Geerling
2020-05-04 11:34:15 -05:00
committed by GitHub
16 changed files with 1321 additions and 2 deletions

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@@ -27,6 +27,9 @@ Click on the name of a plugin or module to view that content's documentation:
- [k8s_info](https://docs.ansible.com/ansible/latest/modules/k8s_info_module.html)
- [k8s_scale](https://docs.ansible.com/ansible/latest/modules/k8s_scale_module.html)
- [k8s_service](https://docs.ansible.com/ansible/latest/modules/k8s_service_module.html)
- [helm](https://docs.ansible.com/ansible/latest/modules/helm_module.html)
- [helm_info](https://docs.ansible.com/ansible/latest/modules/helm_info_module.html)
- [helm_repository](https://docs.ansible.com/ansible/latest/modules/helm_repository_module.html)
## Installation and Usage

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@@ -2,7 +2,6 @@
- name: Converge
hosts: localhost
connection: local
gather_facts: false
collections:
- community.kubernetes
@@ -27,3 +26,6 @@
- include_tasks: tasks/full.yml
- include_tasks: tasks/exec.yml
- include_tasks: tasks/log.yml
roles:
- helm

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@@ -0,0 +1,15 @@
---
helm_archive_name: "helm-{{ helm_version }}-{{ ansible_system | lower }}-amd64.tar.gz"
helm_binary: "/tmp/helm/{{ ansible_system | lower }}-amd64/helm"
helm_namespace: helm
tiller_namespace: tiller
tiller_cluster_role: cluster-admin
chart_test: "nginx-ingress"
chart_test_version: 1.32.0
chart_test_version_upgrade: 1.33.0
chart_test_repo: "https://kubernetes-charts.storage.googleapis.com"
chart_test_git_repo: "http://github.com/helm/charts.git"
chart_test_values:
revisionHistoryLimit: 0

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@@ -0,0 +1,11 @@
---
- name: Init Helm folders
file:
path: /tmp/helm/
state: directory
- name: Unarchive Helm binary
unarchive:
src: 'https://get.helm.sh/{{ helm_archive_name }}'
dest: /tmp/helm/
remote_src: yes

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@@ -0,0 +1,7 @@
---
- name: Run tests
include_tasks: run_test.yml
loop_control:
loop_var: helm_version
with_items:
- "v3.1.2"

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@@ -0,0 +1,32 @@
---
- name: Ensure helm is not installed
file:
path: "{{ item }}"
state: absent
with_items:
- "/tmp/helm"
- name: Check failed if helm is not installed
include_tasks: test_helm_not_installed.yml
- name: "Install {{ helm_version }}"
include_tasks: install.yml
- name: tests_repository
include_tasks: tests_repository.yml
- name: Deploy charts
include_tasks: "tests_chart/{{ test_chart_type }}.yml"
loop_control:
loop_var: test_chart_type
with_items:
- from_local_path
- from_repository
- from_url
- name: Clean helm install
file:
path: "{{ item }}"
state: absent
with_items:
- "/tmp/helm/"

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@@ -0,0 +1,15 @@
---
- name: Failed test when helm is not installed
helm:
binary_path: "{{ helm_binary}}_fake"
name: test
chart_ref: "{{ chart_test }}"
namespace: "{{ helm_namespace }}"
ignore_errors: yes
register: helm_missing_binary
- name: Assert that helm is not installed
assert:
that:
- helm_missing_binary is failed
- "'No such file or directory' in helm_missing_binary.msg"

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@@ -0,0 +1,201 @@
---
- name: Create helm namespace
k8s:
api_version: v1
kind: Namespace
name: "{{ helm_namespace }}"
wait: true
- name: Check helm_info empty
helm_info:
binary_path: "{{ helm_binary }}"
name: test
namespace: "{{ helm_namespace }}"
register: empty_info
- name: "Assert that no charts are installed with helm_info"
assert:
that:
- empty_info.status is undefined
- name: "Install {{ chart_test }} from {{ source }}"
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source }}"
chart_version: "{{ chart_source_version | default(omit) }}"
namespace: "{{ helm_namespace }}"
register: install
- name: "Assert that {{ chart_test }} chart is installed from {{ source }}"
assert:
that:
- install is changed
- install.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
- install.status.status | lower == 'deployed'
- name: Check helm_info content
helm_info:
binary_path: "{{ helm_binary }}"
name: test
namespace: "{{ helm_namespace }}"
register: content_info
- name: "Assert that {{ chart_test }} is installed from {{ source }} with helm_info"
assert:
that:
- content_info.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
- content_info.status.status | lower == 'deployed'
- name: Check idempotency
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source }}"
chart_version: "{{ chart_source_version | default(omit) }}"
namespace: "{{ helm_namespace }}"
register: install
- name: Assert idempotency
assert:
that:
- install is not changed
- install.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
- install.status.status | lower == 'deployed'
- name: "Add vars to {{ chart_test }} from {{ source }}"
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source }}"
chart_version: "{{ chart_source_version | default(omit) }}"
namespace: "{{ helm_namespace }}"
values: "{{ chart_test_values }}"
register: install
- name: "Assert that {{ chart_test }} chart is upgraded with new var from {{ source }}"
assert:
that:
- install is changed
- install.status.status | lower == 'deployed'
- install.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
- "install.status['values'].revisionHistoryLimit == 0"
- name: Check idempotency after adding vars
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source }}"
chart_version: "{{ chart_source_version | default(omit) }}"
namespace: "{{ helm_namespace }}"
values: "{{ chart_test_values }}"
register: install
- name: Assert idempotency after add vars
assert:
that:
- install is not changed
- install.status.status | lower == 'deployed'
- install.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
- "install.status['values'].revisionHistoryLimit == 0"
- name: "Remove Vars to {{ chart_test }} from {{ source }}"
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source }}"
chart_version: "{{ chart_source_version | default(omit) }}"
namespace: "{{ helm_namespace }}"
register: install
- name: "Assert that {{ chart_test }} chart is upgraded with new var from {{ source }}"
assert:
that:
- install is changed
- install.status.status | lower == 'deployed'
- install.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
- install.status['values'] == {}
- name: Check idempotency after removing vars
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source }}"
chart_version: "{{ chart_source_version | default(omit) }}"
namespace: "{{ helm_namespace }}"
register: install
- name: Assert idempotency after removing vars
assert:
that:
- install is not changed
- install.status.status | lower == 'deployed'
- install.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
- install.status['values'] == {}
- name: "Upgrade {{ chart_test }} from {{ source }}"
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source_upgrade | default(chart_source) }}"
chart_version: "{{ chart_source_version_upgrade | default(omit) }}"
namespace: "{{ helm_namespace }}"
register: install
- name: "Assert that {{ chart_test }} chart is upgraded with new version from {{ source }}"
assert:
that:
- install is changed
- install.status.status | lower == 'deployed'
- install.status.chart == "{{ chart_test }}-{{ chart_test_version_upgrade }}"
- name: Check idempotency after upgrade
helm:
binary_path: "{{ helm_binary }}"
name: test
chart_ref: "{{ chart_source_upgrade | default(chart_source) }}"
chart_version: "{{ chart_source_version_upgrade | default(omit) }}"
namespace: "{{ helm_namespace }}"
register: install
- name: Assert idempotency after upgrade
assert:
that:
- install is not changed
- install.status.status | lower == 'deployed'
- install.status.chart == "{{ chart_test }}-{{ chart_test_version_upgrade }}"
- name: "Remove {{ chart_test }} from {{ source }}"
helm:
binary_path: "{{ helm_binary }}"
state: absent
name: test
namespace: "{{ helm_namespace }}"
register: install
- name: "Assert that {{ chart_test }} chart is removed from {{ source }}"
assert:
that:
- install is changed
- name: Check idempotency after remove
helm:
binary_path: "{{ helm_binary }}"
state: absent
name: test
namespace: "{{ helm_namespace }}"
register: install
- name: Assert idempotency
assert:
that:
- install is not changed
- name: Remove helm namespace
k8s:
api_version: v1
kind: Namespace
name: "{{ helm_namespace }}"
state: absent
wait: true
wait_timeout: 180

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@@ -0,0 +1,27 @@
---
- name: Git clone stable repo
git:
repo: "{{ chart_test_git_repo }}"
dest: /tmp/helm_test_repo
version: 631eb8413f6728962439488f48d7d6fbb954a6db
- name: Git clone stable repo upgrade
git:
repo: "{{ chart_test_git_repo }}"
dest: /tmp/helm_test_repo_upgrade
version: d37b5025ffc8be49699898369fbb59661e2a8ffb
- name: Install Chart from local path
include_tasks: "../tests_chart.yml"
vars:
source: local_path
chart_source: "/tmp/helm_test_repo/stable/{{ chart_test }}/"
chart_source_upgrade: "/tmp/helm_test_repo_upgrade/stable/{{ chart_test }}/"
- name: Remove clone repos
file:
path: "{{ item }}"
state: absent
with_items:
- /tmp/helm_test_repo
- /tmp/helm_test_repo_upgrade

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@@ -0,0 +1,19 @@
---
- name: Add chart repo
helm_repository:
name: test_helm
repo_url: "{{ chart_test_repo }}"
- name: Install Chart from repository
include_tasks: "../tests_chart.yml"
vars:
source: repository
chart_source: "test_helm/{{ chart_test }}"
chart_source_version: "{{ chart_test_version }}"
chart_source_version_upgrade: "{{ chart_test_version_upgrade }}"
- name: Add chart repo
helm_repository:
name: test_helm
repo_url: "{{ chart_test_repo }}"
state: absent

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@@ -0,0 +1,7 @@
---
- name: Install Chart from URL
include_tasks: "../tests_chart.yml"
vars:
source: url
chart_source: "{{ chart_test_repo }}/{{ chart_test }}-{{ chart_test_version }}.tgz"
chart_source_upgrade: "{{ chart_test_repo }}/{{ chart_test }}-{{ chart_test_version_upgrade }}.tgz"

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@@ -0,0 +1,61 @@
---
- name: "Ensure test_helm_repo doesn't exist"
helm_repository:
name: test_helm_repo
state: absent
- name: Add test_helm_repo chart repository
helm_repository:
name: test_helm_repo
repo_url: "{{ chart_test_repo }}"
register: repository
- name: Assert that test_helm_repo repository is added
assert:
that:
- repository is changed
- name: Check idempotency
helm_repository:
name: test_helm_repo
repo_url: "{{ chart_test_repo }}"
register: repository
- name: Assert idempotency
assert:
that:
- repository is not changed
- name: Failed to add repository with the same name
helm_repository:
name: test_helm_repo
repo_url: "https://other-charts.url"
register: repository_errors
ignore_errors: yes
- name: Assert that adding repository with the same name failed
assert:
that:
- repository_errors is failed
- name: Remove test_helm_repo chart repository
helm_repository:
name: test_helm_repo
state: absent
register: repository
- name: Assert that test_helm_repo repository is removed
assert:
that:
- repository is changed
- name: Check idempotency after remove
helm_repository:
name: test_helm_repo
state: absent
register: repository
- name: Assert idempotency
assert:
that:
- repository is not changed

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@@ -49,7 +49,7 @@
app: "{{ k8s_pod_name }}"
template: "{{ k8s_pod_template }}"
wait: yes
wait_sleep: 3
wait_sleep: 5
wait_timeout: 180
vars:
k8s_pod_name: wait-ds

491
plugins/modules/helm.py Normal file
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@@ -0,0 +1,491 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: helm
short_description: Manages Kubernetes packages with the Helm package manager
author:
- Lucas Boisserie (@LucasBoisserie)
- Matthieu Diehr (@d-matt)
requirements:
- "helm (https://github.com/helm/helm/releases)"
- "yaml (https://pypi.org/project/PyYAML/)"
description:
- Install, upgrade, delete packages with the Helm package manager.
options:
binary_path:
description:
- The path of a helm binary to use.
required: false
type: path
chart_ref:
description:
- chart_reference on chart repository.
- path to a packaged chart.
- path to an unpacked chart directory.
- absolute URL.
- Required when I(release_state) is set to C(present).
required: false
type: path
chart_repo_url:
description:
- Chart repository URL where to locate the requested chart.
required: false
type: str
chart_version:
description:
- Chart version to install. If this is not specified, the latest version is installed.
required: false
type: str
release_name:
description:
- Release name to manage.
required: true
type: str
aliases: [ name ]
release_namespace:
description:
- Kubernetes namespace where the chart should be installed.
required: true
type: str
aliases: [ namespace ]
release_state:
choices: ['present', 'absent']
description:
- Desirated state of release.
required: false
default: present
aliases: [ state ]
type: str
release_values:
description:
- Value to pass to chart.
required: false
default: {}
aliases: [ values ]
type: dict
update_repo_cache:
description:
- Run C(helm repo update) before the operation. Can be run as part of the package installation or as a separate step.
default: false
type: bool
#Helm options
disable_hook:
description:
- Helm option to disable hook on install/upgrade/delete.
default: False
type: bool
force:
description:
- Helm option to force reinstall, ignore on new install.
default: False
type: bool
kube_context:
description:
- Helm option to specify which kubeconfig context to use.
type: str
kubeconfig_path:
description:
- Helm option to specify kubeconfig path to use.
type: path
aliases: [ kubeconfig ]
purge:
description:
- Remove the release from the store and make its name free for later use.
default: True
type: bool
wait:
description:
- Wait until all Pods, PVCs, Services, and minimum number of Pods of a Deployment are in a ready state before marking the release as successful.
default: False
type: bool
wait_timeout:
description:
- Timeout when wait option is enabled (helm2 is a number of seconds, helm3 is a duration).
type: str
'''
EXAMPLES = '''
- name: Create helm namespace as HELM 3 doesn't create it automatically
k8s:
api_version: v1
kind: Namespace
name: "monitoring"
wait: true
# From repository
- name: Add stable chart repo
helm_repository:
name: stable
repo_url: "https://kubernetes-charts.storage.googleapis.com"
- name: Deploy latest version of Grafana chart inside monitoring namespace with values
helm:
name: test
chart_ref: stable/grafana
release_namespace: monitoring
values:
replicas: 2
- name: Deploy Grafana chart on 5.0.12 with values loaded from template
helm:
name: test
chart_ref: stable/grafana
chart_version: 5.0.12
values: "{{ lookup('template', 'somefile.yaml') | from_yaml }}"
- name: Remove test release and waiting suppression ending
helm:
name: test
state: absent
wait: true
# From git
- name: Git clone stable repo on HEAD
git:
repo: "http://github.com/helm/charts.git"
dest: /tmp/helm_repo
- name: Deploy Grafana chart from local path
helm:
name: test
chart_ref: /tmp/helm_repo/stable/grafana
release_namespace: monitoring
# From url
- name: Deploy Grafana chart on 5.0.12 from url
helm:
name: test
chart_ref: "https://kubernetes-charts.storage.googleapis.com/grafana-5.0.12.tgz"
release_namespace: monitoring
'''
RETURN = """
status:
type: complex
description: A dictionary of status output
returned: on success Creation/Upgrade/Already deploy
contains:
appversion:
type: str
returned: always
description: Version of app deployed
chart:
type: str
returned: always
description: Chart name and chart version
name:
type: str
returned: always
description: Name of the release
namespace:
type: str
returned: always
description: Namespace where the release is deployed
revision:
type: str
returned: always
description: Number of time where the release has been updated
status:
type: str
returned: always
description: Status of release (can be DEPLOYED, FAILED, ...)
updated:
type: str
returned: always
description: The Date of last update
values:
type: str
returned: always
description: Dict of Values used to deploy
stdout:
type: str
description: Full `helm` command stdout, in case you want to display it or examine the event log
returned: always
sample: ''
stderr:
type: str
description: Full `helm` command stderr, in case you want to display it or examine the event log
returned: always
sample: ''
command:
type: str
description: Full `helm` command built by this module, in case you want to re-run the command outside the module or debug a problem.
returned: always
sample: helm upgrade ...
"""
import traceback
try:
import yaml
IMP_YAML = True
except ImportError:
IMP_YAML_ERR = traceback.format_exc()
IMP_YAML = False
from ansible.module_utils.basic import AnsibleModule, missing_required_lib
module = None
# Get Values from deployed release
def get_values(command, release_name):
get_command = command + " get values --output=yaml " + release_name
rc, out, err = module.run_command(get_command)
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=get_command
)
# Helm 3 return "null" string when no values are set
if out.rstrip("\n") == "null":
return {}
else:
return yaml.safe_load(out)
# Get Release from all deployed releases
def get_release(state, release_name):
if state is not None:
for release in state:
if release['name'] == release_name:
return release
return None
# Get Release state from deployed release
def get_release_status(command, release_name):
list_command = command + " list --output=yaml --filter " + release_name
rc, out, err = module.run_command(list_command)
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=list_command
)
release = get_release(yaml.safe_load(out), release_name)
if release is None: # not install
return None
release['values'] = get_values(command, release_name)
return release
# Run Repo update
def run_repo_update(command):
repo_update_command = command + " repo update"
rc, out, err = module.run_command(repo_update_command)
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=repo_update_command
)
# Get chart info
def fetch_chart_info(command, chart_ref):
inspect_command = command + " show chart " + chart_ref
rc, out, err = module.run_command(inspect_command)
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=inspect_command
)
return yaml.safe_load(out)
# Install/upgrade/rollback release chart
def deploy(command, release_name, release_values, chart_name, wait, wait_timeout, disable_hook, force):
deploy_command = command + " upgrade -i" # install/upgrade
# Always reset values to keep release_values equal to values released
deploy_command += " --reset-values"
if wait:
deploy_command += " --wait"
if wait_timeout is not None:
deploy_command += " --timeout " + wait_timeout
if force:
deploy_command += " --force"
if disable_hook:
deploy_command += " --no-hooks"
if release_values != {}:
try:
import tempfile
except ImportError:
module.fail_json(msg=missing_required_lib("tempfile"), exception=traceback.format_exc())
fd, path = tempfile.mkstemp(suffix='.yml')
with open(path, 'w') as yaml_file:
yaml.dump(release_values, yaml_file, default_flow_style=False)
deploy_command += " -f=" + path
deploy_command += " " + release_name + " " + chart_name
return deploy_command
# Delete release chart
def delete(command, release_name, purge, disable_hook):
delete_command = command + " uninstall "
if not purge:
delete_command += " --keep-history"
if disable_hook:
delete_command += " --no-hooks"
delete_command += " " + release_name
return delete_command
def main():
global module
module = AnsibleModule(
argument_spec=dict(
binary_path=dict(type='path'),
chart_ref=dict(type='path'),
chart_repo_url=dict(type='str'),
chart_version=dict(type='str'),
release_name=dict(type='str', required=True, aliases=['name']),
release_namespace=dict(type='str', required=True, aliases=['namespace']),
release_state=dict(default='present', choices=['present', 'absent'], aliases=['state']),
release_values=dict(type='dict', default={}, aliases=['values']),
update_repo_cache=dict(type='bool', default=False),
# Helm options
disable_hook=dict(type='bool', default=False),
force=dict(type='bool', default=False),
kube_context=dict(type='str'),
kubeconfig_path=dict(type='path', aliases=['kubeconfig']),
purge=dict(type='bool', default=True),
wait=dict(type='bool', default=False),
wait_timeout=dict(type='str'),
),
required_if=[
('release_state', 'present', ['release_name', 'chart_ref']),
('release_state', 'absent', ['release_name'])
],
supports_check_mode=True,
)
if not IMP_YAML:
module.fail_json(msg=missing_required_lib("yaml"), exception=IMP_YAML_ERR)
changed = False
bin_path = module.params.get('binary_path')
chart_ref = module.params.get('chart_ref')
chart_repo_url = module.params.get('chart_repo_url')
chart_version = module.params.get('chart_version')
release_name = module.params.get('release_name')
release_namespace = module.params.get('release_namespace')
release_state = module.params.get('release_state')
release_values = module.params.get('release_values')
update_repo_cache = module.params.get('update_repo_cache')
# Helm options
disable_hook = module.params.get('disable_hook')
force = module.params.get('force')
kube_context = module.params.get('kube_context')
kubeconfig_path = module.params.get('kubeconfig_path')
purge = module.params.get('purge')
wait = module.params.get('wait')
wait_timeout = module.params.get('wait_timeout')
if bin_path is not None:
helm_cmd_common = bin_path
else:
helm_cmd_common = module.get_bin_path('helm', required=True)
if kube_context is not None:
helm_cmd_common += " --kube-context " + kube_context
if kubeconfig_path is not None:
helm_cmd_common += " --kubeconfig " + kubeconfig_path
if update_repo_cache:
run_repo_update(helm_cmd_common)
helm_cmd_common += " --namespace=" + release_namespace
# Get real/deployed release status
release_status = get_release_status(helm_cmd_common, release_name)
# keep helm_cmd_common for get_release_status in module_exit_json
helm_cmd = helm_cmd_common
if release_state == "absent" and release_status is not None:
helm_cmd = delete(helm_cmd, release_name, purge, disable_hook)
changed = True
elif release_state == "present":
if chart_version is not None:
helm_cmd += " --version=" + chart_version
if chart_repo_url is not None:
helm_cmd += " --repo=" + chart_repo_url
# Fetch chart info to have real version and real name for chart_ref from archive, folder or url
chart_info = fetch_chart_info(helm_cmd, chart_ref)
if release_status is None: # Not installed
helm_cmd = deploy(helm_cmd, release_name, release_values, chart_ref, wait, wait_timeout,
disable_hook, False)
changed = True
elif force or release_values != release_status['values'] \
or (chart_info['name'] + '-' + chart_info['version']) != release_status["chart"]:
helm_cmd = deploy(helm_cmd, release_name, release_values, chart_ref, wait, wait_timeout,
disable_hook, force)
changed = True
if module.check_mode:
module.exit_json(changed=changed)
elif not changed:
module.exit_json(changed=False, status=release_status)
rc, out, err = module.run_command(helm_cmd)
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=helm_cmd
)
module.exit_json(changed=changed, stdout=out, stderr=err,
status=get_release_status(helm_cmd_common, release_name), command=helm_cmd)
if __name__ == '__main__':
main()

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: helm_info
short_description: Get informations from Helm package deployed inside the cluster
author:
- Lucas Boisserie (@LucasBoisserie)
requirements:
- "helm (https://github.com/helm/helm/releases)"
- "yaml (https://pypi.org/project/PyYAML/)"
description:
- Get informations (values, states, ...) from Helm package deployed inside the cluster
options:
binary_path:
description:
- The path of a helm binary to use.
required: false
type: path
release_name:
description:
- Release name to manage.
required: true
type: str
aliases: [ name ]
release_namespace:
description:
- Kubernetes namespace where the chart should be installed.
required: true
type: str
aliases: [ namespace ]
#Helm options
kube_context:
description:
- Helm option to specify which kubeconfig context to use.
type: str
kubeconfig_path:
description:
- Helm option to specify kubeconfig path to use.
type: path
aliases: [ kubeconfig ]
'''
EXAMPLES = '''
- name: Deploy latest version of Grafana chart inside monitoring namespace
helm_info:
name: test
release_namespace: monitoring
'''
RETURN = """
status:
type: complex
description: A dictionary of status output
returned: only when release exists
contains:
appversion:
type: str
returned: always
description: Version of app deployed
chart:
type: str
returned: always
description: Chart name and chart version
name:
type: str
returned: always
description: Name of the release
namespace:
type: str
returned: always
description: Namespace where the release is deployed
revision:
type: str
returned: always
description: Number of time where the release has been updated
status:
type: str
returned: always
description: Status of release (can be DEPLOYED, FAILED, ...)
updated:
type: str
returned: always
description: The Date of last update
values:
type: str
returned: always
description: Dict of Values used to deploy
"""
import traceback
try:
import yaml
IMP_YAML = True
except ImportError:
IMP_YAML_ERR = traceback.format_exc()
IMP_YAML = False
from ansible.module_utils.basic import AnsibleModule, missing_required_lib
module = None
# Get Values from deployed release
def get_values(command, release_name):
get_command = command + " get values --output=yaml " + release_name
rc, out, err = module.run_command(get_command)
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=get_command
)
# Helm 3 return "null" string when no values are set
if out.rstrip("\n") == "null":
return {}
else:
return yaml.safe_load(out)
# Get Release from all deployed releases
def get_release(state, release_name):
if state is not None:
for release in state:
if release['name'] == release_name:
return release
return None
# Get Release state from deployed release
def get_release_status(command, release_name):
list_command = command + " list --output=yaml --filter " + release_name
rc, out, err = module.run_command(list_command)
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=list_command
)
release = get_release(yaml.safe_load(out), release_name)
if release is None: # not install
return None
release['values'] = get_values(command, release_name)
return release
def main():
global module
module = AnsibleModule(
argument_spec=dict(
binary_path=dict(type='path'),
release_name=dict(type='str', required=True, aliases=['name']),
release_namespace=dict(type='str', required=True, aliases=['namespace']),
# Helm options
kube_context=dict(type='str'),
kubeconfig_path=dict(type='path', aliases=['kubeconfig']),
),
supports_check_mode=True,
)
if not IMP_YAML:
module.fail_json(msg=missing_required_lib("yaml"), exception=IMP_YAML_ERR)
bin_path = module.params.get('binary_path')
release_name = module.params.get('release_name')
release_namespace = module.params.get('release_namespace')
# Helm options
kube_context = module.params.get('kube_context')
kubeconfig_path = module.params.get('kubeconfig_path')
if bin_path is not None:
helm_cmd_common = bin_path
else:
helm_cmd_common = module.get_bin_path('helm', required=True)
if kube_context is not None:
helm_cmd_common += " --kube-context " + kube_context
if kubeconfig_path is not None:
helm_cmd_common += " --kubeconfig " + kubeconfig_path
helm_cmd_common += " --namespace=" + release_namespace
release_status = get_release_status(helm_cmd_common, release_name)
if release_status is not None:
module.exit_json(changed=False, status=release_status)
else:
module.exit_json(changed=False)
if __name__ == '__main__':
main()

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: helm_repository
short_description: Add and remove Helm repository
author:
- Lucas Boisserie (@LucasBoisserie)
requirements:
- "helm (https://github.com/helm/helm/releases)"
- "yaml (https://pypi.org/project/PyYAML/)"
description:
- Manage Helm repositories
options:
binary_path:
description:
- The path of a helm binary to use.
required: false
type: path
repo_name:
description:
- Chart repository name.
required: true
type: str
aliases: [ name ]
repo_url:
description:
- Chart repository url
type: str
aliases: [ url ]
repo_username:
description:
- Chart repository username for repository with basic auth.
- Required if chart_repo_password is specified.
required: false
type: str
aliases: [ username ]
repo_password:
description:
- Chart repository password for repository with basic auth.
- Required if chart_repo_username is specified.
required: false
type: str
aliases: [ password ]
repo_state:
choices: ['present', 'absent']
description:
- Desirated state of repositoriy.
required: false
default: present
aliases: [ state ]
type: str
'''
EXAMPLES = '''
- name: Add default repository
helm_repository:
name: stable
repo_url: https://kubernetes-charts.storage.googleapis.com
'''
RETURN = ''' # '''
import traceback
try:
import yaml
IMP_YAML = True
except ImportError:
IMP_YAML_ERR = traceback.format_exc()
IMP_YAML = False
from ansible.module_utils.basic import AnsibleModule, missing_required_lib
module = None
# Get repository from all repositories added
def get_repository(state, repo_name):
if state is not None:
for repository in state:
if repository['name'] == repo_name:
return repository
return None
# Get repository status
def get_repository_status(command, repository_name):
list_command = command + " repo list --output=yaml"
rc, out, err = module.run_command(list_command)
# no repo => rc=1 and 'no repositories to show' in output
if rc == 1 and "no repositories to show" in err:
return None
elif rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=list_command
)
return get_repository(yaml.safe_load(out), repository_name)
# Install repository
def install_repository(command, repository_name, repository_url, repository_username, repository_password):
install_command = command + " repo add " + repository_name + " " + repository_url
if repository_username is not None and repository_password is not None:
install_command += " --username=" + repository_username
install_command += " --password=" + repository_password
return install_command
# Delete repository
def delete_repository(command, repository_name):
remove_command = command + " repo rm " + repository_name
return remove_command
def main():
global module
module = AnsibleModule(
argument_spec=dict(
binary_path=dict(type='path'),
repo_name=dict(type='str', aliases=['name'], required=True),
repo_url=dict(type='str', aliases=['url']),
repo_username=dict(type='str', aliases=['username']),
repo_password=dict(type='str', aliases=['password'], no_log=True),
repo_state=dict(default='present', choices=['present', 'absent'], aliases=['state']),
),
required_together=[
['repo_username', 'repo_password']
],
required_if=[
('repo_state', 'present', ['repo_url']),
],
supports_check_mode=True,
)
if not IMP_YAML:
module.fail_json(msg=missing_required_lib("yaml"), exception=IMP_YAML_ERR)
changed = False
bin_path = module.params.get('binary_path')
repo_name = module.params.get('repo_name')
repo_url = module.params.get('repo_url')
repo_username = module.params.get('repo_username')
repo_password = module.params.get('repo_password')
repo_state = module.params.get('repo_state')
if bin_path is not None:
helm_cmd = bin_path
else:
helm_cmd = module.get_bin_path('helm', required=True)
repository_status = get_repository_status(helm_cmd, repo_name)
if repo_state == "absent" and repository_status is not None:
helm_cmd = delete_repository(helm_cmd, repo_name)
changed = True
elif repo_state == "present":
if repository_status is None:
helm_cmd = install_repository(helm_cmd, repo_name, repo_url, repo_username, repo_password)
changed = True
elif repository_status['url'] != repo_url:
module.fail_json(msg="Repository already have a repository named {0}".format(repo_name))
if module.check_mode:
module.exit_json(changed=changed)
elif not changed:
module.exit_json(changed=False, repo_name=repo_name, repo_url=repo_url)
rc, out, err = module.run_command(helm_cmd)
if repo_password is not None:
helm_cmd = helm_cmd.replace(repo_password, '******')
if rc != 0:
module.fail_json(
msg="Failure when executing Helm command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
command=helm_cmd
)
module.exit_json(changed=changed, stdout=out, stderr=err, command=helm_cmd)
if __name__ == '__main__':
main()