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# Kubernetes Collection for Ansible
This repository hosts the `kubernetes.core` (formerly known as `community.kubernetes`) Ansible Collection.
## Description
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.
### Included Content
Click on the name of a plugin or module to view that content's documentation:
<!--start collection content-->
### Connection Plugins
Name | Description
--- | ---
[kubernetes.core.kubectl](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.kubectl_connection.rst)|Execute tasks in pods running on Kubernetes.
### K8s filter Plugins
Name | Description
--- | ---
kubernetes.core.k8s_config_resource_name|Generate resource name for the given resource of type ConfigMap, Secret
### Inventory Plugins
Name | Description
--- | ---
[kubernetes.core.k8s](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_inventory.rst)|Kubernetes (K8s) inventory source
### Lookup Plugins
Name | Description
--- | ---
[kubernetes.core.k8s](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_lookup.rst)|Query the K8s API
[kubernetes.core.kustomize](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.kustomize_lookup.rst)|Build a set of kubernetes resources using a 'kustomization.yaml' file.
### Modules
Name | Description
--- | ---
[kubernetes.core.helm](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_module.rst)|Manages Kubernetes packages with the Helm package manager
[kubernetes.core.helm_info](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_info_module.rst)|Get information from Helm package deployed inside the cluster
[kubernetes.core.helm_plugin](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_plugin_module.rst)|Manage Helm plugins
[kubernetes.core.helm_plugin_info](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_plugin_info_module.rst)|Gather information about Helm plugins
[kubernetes.core.helm_pull](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_pull_module.rst)|download a chart from a repository and (optionally) unpack it in local directory.
[kubernetes.core.helm_registry_auth](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_registry_auth_module.rst)|Helm registry authentication module
[kubernetes.core.helm_repository](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_repository_module.rst)|Manage Helm repositories.
[kubernetes.core.helm_template](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.helm_template_module.rst)|Render chart templates
[kubernetes.core.k8s](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_module.rst)|Manage Kubernetes (K8s) objects
[kubernetes.core.k8s_cluster_info](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_cluster_info_module.rst)|Describe Kubernetes (K8s) cluster, APIs available and their respective versions
[kubernetes.core.k8s_cp](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_cp_module.rst)|Copy files and directories to and from pod.
[kubernetes.core.k8s_drain](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_drain_module.rst)|Drain, Cordon, or Uncordon node in k8s cluster
[kubernetes.core.k8s_exec](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_exec_module.rst)|Execute command in Pod
[kubernetes.core.k8s_info](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_info_module.rst)|Describe Kubernetes (K8s) objects
[kubernetes.core.k8s_json_patch](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_json_patch_module.rst)|Apply JSON patch operations to existing objects
[kubernetes.core.k8s_log](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_log_module.rst)|Fetch logs from Kubernetes resources
[kubernetes.core.k8s_rollback](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_rollback_module.rst)|Rollback Kubernetes (K8S) Deployments and DaemonSets
[kubernetes.core.k8s_scale](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_scale_module.rst)|Set a new size for a Deployment, ReplicaSet, Replication Controller, or Job.
[kubernetes.core.k8s_service](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_service_module.rst)|Manage Services on Kubernetes
[kubernetes.core.k8s_taint](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/kubernetes.core.k8s_taint_module.rst)|Taint a node in a Kubernetes/OpenShift cluster
<!--end collection content-->
## Requirements
<!--start requires_ansible-->
### Ansible version compatibility
This collection has been tested against the following Ansible versions: **>=2.15.0**.
For collections that support Ansible 2.9, please ensure you update your `network_os` to use the
fully qualified collection name (for example, `cisco.ios.ios`).
Plugins and modules within a collection may be tested with only specific Ansible versions.
A collection may contain metadata that identifies these versions.
PEP440 is the schema used to describe the versions of Ansible.
<!--end requires_ansible-->
### Helm Version Compatibility
Helm modules in this collection are compatible with Helm v3.x and are not yet compatible with Helm v4. Individual modules and their parameters may support a more specific range of Helm versions.
### Python Support
* Collection supports 3.9+
Note: Python2 is deprecated from [1st January 2020](https://www.python.org/doc/sunset-python-2/). Please switch to Python3.
### Kubernetes Version Support
This collection supports Kubernetes versions >= 1.24.
## Installation
Before using the Kubernetes collection, you need to install it with the Ansible Galaxy CLI:
ansible-galaxy collection install kubernetes.core
You can also include it in a `requirements.yml` file and install it via `ansible-galaxy collection install -r requirements.yml`, using the format:
```yaml
---
collections:
- name: kubernetes.core
version: 5.4.2
```
### Installing the Kubernetes Python Library
Content in this collection requires the [Kubernetes Python client](https://pypi.org/project/kubernetes/) to interact with Kubernetes' APIs. You can install it with:
```bash
pip3 install kubernetes
```
## Use Cases
It's preferable to use content in this collection using their Fully Qualified Collection Namespace (FQCN), for example `kubernetes.core.k8s_info`:
```yaml
---
- hosts: localhost
gather_facts: false
connection: local
tasks:
- name: Ensure the myapp Namespace exists.
kubernetes.core.k8s:
api_version: v1
kind: Namespace
name: myapp
state: present
- name: Ensure the myapp Service exists in the myapp Namespace.
kubernetes.core.k8s:
state: present
definition:
apiVersion: v1
kind: Service
metadata:
name: myapp
namespace: myapp
spec:
type: LoadBalancer
ports:
- port: 8080
targetPort: 8080
selector:
app: myapp
- name: Get a list of all Services in the myapp namespace.
kubernetes.core.k8s_info:
kind: Service
namespace: myapp
register: myapp_services
- name: Display number of Services in the myapp namespace.
debug:
var: myapp_services.resources | count
```
If upgrading older playbooks which were built prior to Ansible 2.10 and this collection's existence, you can also define `collections` in your play and refer to this collection's modules as you did in Ansible 2.9 and below, as in this example:
```yaml
---
- hosts: localhost
gather_facts: false
connection: local
collections:
- kubernetes.core
tasks:
- name: Ensure the myapp Namespace exists.
k8s:
api_version: v1
kind: Namespace
name: myapp
state: present
```
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.
## Ansible Turbo Mode Tech Preview
The ``kubernetes.core`` collection supports Ansible Turbo mode as a tech preview via the ``cloud.common`` collection. By default, this feature is disabled. To enable Turbo mode for modules, set the environment variable `ENABLE_TURBO_MODE=1` on the managed node. For example:
```yaml
---
- hosts: remote
environment:
ENABLE_TURBO_MODE: 1
tasks:
...
```
To enable Turbo mode for k8s lookup plugin, set the environment variable `ENABLE_TURBO_MODE=1` on the managed node. This is not working when
defined in the playbook using `environment` keyword as above, you must set it using `export ENABLE_TURBO_MODE=1`.
Please read more about Ansible Turbo mode - [here](https://github.com/ansible-collections/kubernetes.core/blob/main/docs/ansible_turbo_mode.rst).
## Testing
[![Linters](https://img.shields.io/github/actions/workflow/status/ansible-collections/kubernetes.core/linters.yaml?label=linters)](https://github.com/ansible-collections/kubernetes.core/actions/workflows/linters.yaml) [![Integration tests](https://img.shields.io/github/actions/workflow/status/ansible-collections/kubernetes.core/integration-tests.yaml?label=integration%20tests)](https://github.com/ansible-collections/kubernetes.core/actions/workflows/integration-tests.yaml) [![Sanity tests](https://img.shields.io/github/actions/workflow/status/ansible-collections/kubernetes.core/sanity-tests.yaml?label=sanity%20tests)](https://github.com/ansible-collections/kubernetes.core/actions/workflows/sanity-tests.yaml) [![Unit tests](https://img.shields.io/github/actions/workflow/status/ansible-collections/kubernetes.core/unit-tests.yaml?label=unit%20tests)](https://github.com/ansible-collections/kubernetes.core/actions/workflows/unit-tests.yaml) [![Codecov](https://img.shields.io/codecov/c/github/ansible-collections/kubernetes.core)](https://app.codecov.io/gh/ansible-collections/kubernetes.core)
### Testing with `ansible-test`
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).
You can run the collection's test suites with the commands:
make test-sanity
make test-integration
make test-unit
### Testing with `molecule`
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 set up a local cluster using KinD and run Molecule:
kind create cluster
make test-molecule
## Contributing to this Collection
If you want to develop new content for this collection or improve what is already here, clone the Git repository into one of the configured [`COLLECTIONS_PATHS`](https://docs.ansible.com/ansible/latest/reference_appendices/config.html#collections-paths) and work on it there.
See [Contributing to kubernetes.core](https://github.com/ansible-collections/kubernetes.core/blob/stable-5/CONTRIBUTING.md).
Join the Ansible community:
* [Get Help](https://forum.ansible.com/c/help/6)
* [Posts tagged with 'kubernetes'](https://forum.ansible.com/tag/kubernetes)
* [Social Spaces](https://forum.ansible.com/c/chat/4)
* [News & Announcements](https://forum.ansible.com/c/news/5)
The Ansible [Bullhorn newsletter](https://docs.ansible.com/ansible/devel/community/communication.html#the-bullhorn) announces releases and important changes. For more information, see the [Ansible communication guide](https://docs.ansible.com/ansible/devel/community/communication.html).
### Code of Conduct
This project follows the [Ansible Code of Conduct](https://docs.ansible.com/ansible/devel/community/code_of_conduct.html). If you encounter abusive behavior, see the [policy violations](https://docs.ansible.com/ansible/devel/community/code_of_conduct.html#policy-violations) section for how to raise a complaint.
## Support
As Red Hat Ansible Certified Content, this collection is entitled to support through the Ansible Automation Platform (AAP) using the **Create issue** button on the top right corner. If a support case cannot be opened with Red Hat and the collection has been obtained either from Galaxy or GitHub, there may be community help available on the [Ansible Forum](https://forum.ansible.com/).
> **Note:** The `stable-4` branch (all `4.x.y` releases) is no longer supported. No backports or releases are performed on `stable-4`.
We announce releases and important changes through Ansible's [The Bullhorn newsletter](https://github.com/ansible/community/wiki/News#the-bullhorn). Subscribe via [this link](https://eepurl.com/gZmiEP).
We take part in the global quarterly [Ansible Contributor Summit](https://github.com/ansible/community/wiki/Contributor-Summit). Track The Bullhorn and join when announced.
For the latest supported versions, see [Release Notes and Roadmap](https://github.com/ansible-collections/kubernetes.core/blob/stable-5/README.md#release-notes-and-roadmap).
Report bugs, request features, or ask questions by opening an issue in the [GitHub repository](https://github.com/ansible-collections/kubernetes.core/).
## Release Notes and Roadmap
Releases are automatically built and pushed to Ansible Galaxy for any new tag. Before tagging a release, make sure to do the following:
1. Update the version in the following places:
1. The `version` in `galaxy.yml`
2. This README's `requirements.yml` example
3. The `VERSION` in `Makefile`
2. Update the CHANGELOG:
1. Make sure you have [`antsibull-changelog`](https://pypi.org/project/antsibull-changelog/) installed.
2. Make sure there are fragments for all known changes in `changelogs/fragments`.
3. Run `antsibull-changelog release`.
3. Commit the changes and create a PR with the changes. Wait for tests to pass, then merge it once they have.
4. Tag the version in Git and push to GitHub.
After the version is published, verify it exists on the [Kubernetes Collection Galaxy page](https://galaxy.ansible.com/kubernetes/core).
The process for [uploading a supported release to Automation Hub](https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.1/html/uploading_content_to_red_hat_automation_hub/proc-upload-collection) is documented separately.
## Related Information
* [Using Ansible collections](https://docs.ansible.com/ansible/devel/user_guide/collections_using.html)
* [Ansible communication guide](https://docs.ansible.com/ansible/devel/community/communication.html)
* [Continuous integration (CI) overview](https://github.com/ansible-collections/kubernetes.core/blob/stable-5/CI.md)
* [SonarCloud integration](https://github.com/ansible-collections/kubernetes.core/blob/stable-5/SONARCLOUD.md)
* [Ansible Turbo mode (tech preview)](https://github.com/ansible-collections/kubernetes.core/blob/stable-5/docs/ansible_turbo_mode.rst)
### Code of conduct
We follow the [Ansible Code of Conduct](https://docs.ansible.com/ansible/devel/community/code_of_conduct.html) in all our interactions within this project.
If you encounter abusive behavior, please refer to the [policy violations](https://docs.ansible.com/ansible/devel/community/code_of_conduct.html#policy-violations) section of the Code for information on how to raise a complaint.
## License Information
GNU General Public License v3.0 or later
See [LICENSE](https://github.com/ansible-collections/kubernetes.core/blob/stable-5/LICENSE) to see the full text.
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