Initial commit.

README.md

@@ -1,2 +1,42 @@
-# helm-ansible-role
+Role Name
+=========
 
+An Ansible role to install helm.
+
+Requirements
+------------
+
+None
+
+Role Variables
+--------------
+
+```yml
+helm_version: 3.7.2
+helm_arch: amd64
+```
+
+Dependencies
+------------
+
+None
+
+Example Playbook
+----------------
+
+```yml
+- name: Install helm.
+  hosts: all
+  roles:
+    - { role: install_helm, helm_version: 3.7,2, helm_arch: amd64 }
+```
+
+License
+-------
+
+MIT
+
+Author Information
+------------------
+
+This role was created by [shnee](https://github.com/shnee).

defaults/main.yml

@@ -0,0 +1,13 @@
+---
+helm_version: 3.7.2
+helm_arch: amd64
+helm_install_dir: /usr/local/bin
+helm_release_base_url: https://get.helm.sh
+helm_download_sha256:
+  3.7.2:
+    amd64: 4ae30e48966aba5f807a4e140dad6736ee1a392940101e4d79ffb4ee86200a9e
+    arm64: b0214eabbb64791f563bd222d17150ce39bf4e2f5de49f49fdb456ce9ae8162f
+
+# A temporary directory to extract the tar.gz helm release. It get's deleted by
+# a handler if it's ever created.
+tmp_dir: /tmp/helm-ansible

handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: Clean up tmp dir
+  file:
+    path: "{{ tmp_dir }}"
+    state: absent

meta/main.yml

@@ -0,0 +1,21 @@
+---
+galaxy_info:
+  author: shnee
+  description: A ansible role to install helm.
+
+  license: MIT
+
+  min_ansible_version: 2.1
+
+  platforms:
+    - name: Ubuntu
+      versions:
+        - focal  # 20.04
+
+  galaxy_tags:
+    - containers
+    - orchestration
+    - helm
+    - kubernetes
+
+dependencies: []

tasks/main.yml

@@ -0,0 +1,60 @@
+---
+- name: Check if helm is already installed.
+  stat:
+    path: "{{ helm_install_dir }}/helm"
+  failed_when: false
+  register: helm_stat
+
+- name: >
+    "Check the installed helm version against the desired version
+     {{ helm_version }}."
+  command: "{{ helm_install_dir }}/helm version"
+  changed_when: false
+  failed_when: false
+  when: helm_stat.stat.exists
+  register: existing_helm_version
+
+- name: Install helm
+  block:
+
+    - name: Create a tmp directory to extract helm tar.gz
+      file:
+        path: "{{ tmp_dir }}"
+        state: directory
+        mode: 0700
+      notify: Clean up tmp dir
+
+    - name: Download helm tar.gz.
+      get_url:
+        url: "{{ helm_release_base_url }}/\
+              helm-v{{ helm_version }}-linux-{{ helm_arch }}.tar.gz"
+        dest: "{{ tmp_dir }}"
+        checksum: "sha256:{{ helm_download_sha256[helm_version][helm_arch] }}"
+        mode: 0700
+
+    - name: Extract helm tar.gz
+      unarchive:
+        src: "{{ tmp_dir }}/\
+              helm-v{{ helm_version }}-linux-{{ helm_arch }}.tar.gz"
+        dest: "{{ tmp_dir }}"
+        remote_src: true
+        mode: 0700
+
+    - name: Make sure install directory exists.
+      file:
+        path: "{{ helm_install_dir }}"
+        state: directory
+        mode: 0755
+      become: true
+
+    - name: Copy helm binary from tmp folder to install location.
+      copy:
+        src: "{{ tmp_dir }}/linux-{{ helm_arch }}/helm"
+        remote_src: true
+        dest: "{{ helm_install_dir }}/helm"
+        mode: 0755
+      become: true
+
+  when: >
+    not helm_stat.stat.exists or
+    helm_version not in existing_helm_version.stdout