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156 lines
6.9 KiB
Markdown
156 lines
6.9 KiB
Markdown
# Kubernetes Collection for Ansible
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[](https://github.com/ansible-collections/community.kubernetes/actions) [](https://codecov.io/gh/ansible-collections/community.kubernetes)
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This repo hosts the `community.kubernetes` Ansible Collection.
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The collection includes a variety of Ansible content to help automate the management of applications in Kubernetes and OpenShift clusters, as well as the provisioning and maintenance of clusters themselves.
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## Included content
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Click on the name of a plugin or module to view that content's documentation:
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- **Connection Plugins**:
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- [kubectl](https://docs.ansible.com/ansible/latest/plugins/connection/kubectl.html)
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- **Filter Plugins**:
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- [k8s_config_resource_name](https://docs.ansible.com/ansible/latest/user_guide/playbooks_filters.html#kubernetes-filters)
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- **Inventory Source**:
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- [k8s](https://docs.ansible.com/ansible/latest/plugins/inventory/k8s.html)
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- [openshift](https://docs.ansible.com/ansible/latest/plugins/inventory/openshift.html)
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- **Lookup Plugins**:
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- [k8s](https://docs.ansible.com/ansible/latest/plugins/lookup/k8s.html)
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- **Modules**:
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- [k8s](https://docs.ansible.com/ansible/latest/modules/k8s_module.html)
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- [k8s_auth](https://docs.ansible.com/ansible/latest/modules/k8s_auth_module.html)
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- [k8s_exec](https://github.com/ansible-collections/community.kubernetes/blob/master/plugins/modules/k8s_exec.py)
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- [k8s_log](https://github.com/ansible-collections/community.kubernetes/blob/master/plugins/modules/k8s_log.py)
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- [k8s_info](https://docs.ansible.com/ansible/latest/modules/k8s_info_module.html)
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- [k8s_scale](https://docs.ansible.com/ansible/latest/modules/k8s_scale_module.html)
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- [k8s_service](https://docs.ansible.com/ansible/latest/modules/k8s_service_module.html)
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- [helm](https://docs.ansible.com/ansible/latest/modules/helm_module.html)
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- [helm_info](https://docs.ansible.com/ansible/latest/modules/helm_info_module.html)
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- [helm_repository](https://docs.ansible.com/ansible/latest/modules/helm_repository_module.html)
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## Installation and Usage
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### Installing the Collection from Ansible Galaxy
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Before using the Kuberentes collection, you need to install it with the Ansible Galaxy CLI:
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ansible-galaxy collection install community.kubernetes
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You can also include it in a `requirements.yml` file and install it via `ansible-galaxy collection install -r requirements.yml`, using the format:
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```yaml
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---
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collections:
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- name: community.kubernetes
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version: 0.10.0
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```
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### Installing the OpenShift Python Library
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Content in this collection requires the [OpenShift Python client](https://pypi.org/project/openshift/) to interact with Kubernetes' APIs. You can install it with:
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pip3 install openshift
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### Using modules from the Kubernetes Collection in your playbooks
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You can either call modules by their Fully Qualified Collection Namespace (FQCN), like `community.kubernetes.k8s_info`, or you can call modules by their short name if you list the `community.kubernetes` collection in the playbook's `collections`, like so:
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```yaml
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---
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- hosts: localhost
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gather_facts: false
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connection: local
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collections:
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- community.kubernetes
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tasks:
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- name: Ensure the myapp Namespace exists.
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k8s:
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api_version: v1
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kind: Namespace
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name: myapp
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state: present
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- name: Ensure the myapp Service exists in the myapp Namespace.
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k8s:
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state: present
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definition:
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apiVersion: v1
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kind: Service
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metadata:
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name: myapp
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namespace: myapp
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spec:
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type: LoadBalancer
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ports:
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- port: 8080
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targetPort: 8080
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selector:
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app: myapp
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- name: Get a list of all Services in the myapp namespace.
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k8s_info:
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kind: Service
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namespace: myapp
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register: myapp_services
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- name: Display number of Services in the myapp namespace.
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debug:
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var: myapp_services.resources | count
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```
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For documentation on how to use individual modules and other content included in this collection, please see the links in the 'Included content' section earlier in this README.
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## Testing and Development
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If you want to develop new content for this collection or improve what's already here, the easiest way to work on the collection is to clone it into one of the configured [`COLLECTIONS_PATHS`](https://docs.ansible.com/ansible/latest/reference_appendices/config.html#collections-paths), and work on it there.
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### Testing with `ansible-test`
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The `tests` directory contains configuration for running sanity and integration tests using [`ansible-test`](https://docs.ansible.com/ansible/latest/dev_guide/testing_integration.html).
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You can run the collection's test suites with the commands:
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ansible-test sanity --docker -v --color
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ansible-test integration --docker -v --color
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### Testing with `molecule`
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There are also integration tests in the `molecule` directory which are meant to be run against a local Kubernetes cluster, e.g. using [KinD](https://kind.sigs.k8s.io) or [Minikube](https://minikube.sigs.k8s.io). To run the tests, set up a local cluster, then run Molecule:
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kind create cluster
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molecule test
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## Publishing New Versions
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The current process for publishing new versions of the Kubernetes Collection is manual, and requires a user who has access to the `community.kubernetes` namespace on Ansible Galaxy to publish the build artifact. See [Issue #43](https://github.com/ansible-collections/community.kubernetes/issues/43) for progress in automating this process.
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1. Ensure you're running Ansible from devel, so the [`build_ignore` key](https://github.com/ansible/ansible/issues/67130) in `galaxy.yml` is used.
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1. Run `git clean -x -d -f` in this repository's directory to clean out any extra files which should not be included.
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1. Ensure `CHANGELOG.md` contains all the latest changes.
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1. Update `galaxy.yml` and this README's `requirements.yml` example with the new `version` for the collection.
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1. Tag the version in Git and push to GitHub.
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1. Run the following commands to build and release the new version on Galaxy:
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```
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ansible-galaxy collection build
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ansible-galaxy collection publish ./community-kubernetes-$VERSION_HERE.tar.gz
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```
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After the version is published, verify it exists on the [Kubernetes Collection Galaxy page](https://galaxy.ansible.com/community/kubernetes).
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## More Information
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For more information about Ansible's Kubernetes integration, join the `#ansible-community` channel on Freenode IRC, and browse the resources in the [Kubernetes Working Group](https://github.com/ansible/community/wiki/Kubernetes) Community wiki page.
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## License
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GNU General Public License v3.0 or later
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See LICENCE to see the full text.
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