Deploy Kubernetes Resources with Ansible Playbook — Video Tutorial

How to Apply Multiple Yaml Files at Once on Kubernetes K8s or OpenShift OCP with Ansible? I'm going to show you a live Playbook and some simple Ansible code. I'm Luca Berton and welcome to today's episode of Ansible Pilot. Ansible Apply Multiple YAML Files at Once on K8s or OCP - `kubernetes.core.k8s` - Manage Kubernetes (K8s) objects - `ansible.builtin.fileglob` - list files matching a pattern Let's talk about the Ansible module `k8s` and the Ansible lookup plugin fileglob. The full name is `kubernetes.core.k8s`, which means that is part of the collection of modules of Ansible to interact with Kubernetes and Red Hat OpenShift clusters. It manages Kubernetes (K8s) objects. Plugins are a way to expand the Ansible functionality. With lookup plugins specifically, you can load variables or templates with information from external sources. The full name is `ansible.builtin.fileglob`, it's part of `ansible-core` and is included in all Ansible installations. The purpose of the lookup plugin is to list files matching a pattern. k8s module parameters - `name` string - object name - `namespace` string - namespace - `state` string - present/absent/patched - `definition` string - YAML definition - `src` path - path for YAML definition There is a long list of parameters of the `k8s` module. Let me summarize the most used. Most of the parameters are very generic and allow you to combine them for many use-cases. The `name` and `namespace` specify object name and the object namespace. The `api_version` parameter specifies the Kubernetes API version, the default is "v1" for version 1. The `state` like for other modules determines if an object should be created - `present` option, update - `patched` option, or deleted - `absent` option. The `definition` parameter allows you to provide a valid YAML definition (string, list, or dict) for an object when creating or updating. If you prefer to specify a file for the YAML definition, the `src` parameter provides a path to a file containing a valid YAML definition of an object or objects to be created or updated. Links - [kubernetes.core.k8s](https://docs.ansible.com/ansible/latest/collections/kubernetes/core/k8s_module.html) - [ansible.builtin.fileglob](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/fileglob_lookup.html) - [Kubernetes best practices: Organizing with Namespaces](https://cloud.google.com/blog/products/containers-kubernetes/kubernetes-best-practices-organizing-with-namespaces) ## Playbook How to Apply Multiple Yaml Files at Once on Kubernetes K8s or OpenShift OCP with Ansible Playbook. I'm going to combine the `k8s` module with the `fileglob` lookup plugin to be able to process multiple Yaml files. code - multiple_yaml.yml ```yaml --- - name: k8s Playbook hosts: localhost gather_facts: false connection: local tasks: - name: Apply K8s resources kubernetes.core.k8s: definition: "{{ lookup('template', '{{ item }}') | from_yaml }}" with_fil