From f5de2a2056d2b78b255e2f222953a79d15b7ab60 Mon Sep 17 00:00:00 2001
From: L3D <l3d@c3woc.de>
Date: Thu, 4 Feb 2021 14:43:54 +0100
Subject: [PATCH] implement versionscheck

---
 .yamllint              |  8 ++++++++
 defaults/main.yml      |  2 ++
 tasks/main.yml         |  4 ++++
 tasks/versioncheck.yml | 46 ++++++++++++++++++++++++++++++++++++++++++
 vars/main.yml          |  3 +++
 5 files changed, 63 insertions(+)
 create mode 100644 .yamllint
 create mode 100644 tasks/versioncheck.yml
 create mode 100644 vars/main.yml

diff --git a/.yamllint b/.yamllint
new file mode 100644
index 0000000..cb32cb1
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,8 @@
+---
+extends: default
+
+rules:
+  # 150 chars should be enough, but don't fail if a line is longer
+  line-length:
+    max: 150
+    level: warning
diff --git a/defaults/main.yml b/defaults/main.yml
index 73c252d..ab89c89 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,4 +1,6 @@
 ---
+# enable version check for this role? (true is recomended)
+submodules_versioncheck: false
 
 nginx_sites: {}
 
diff --git a/tasks/main.yml b/tasks/main.yml
index 8219933..1e0b3ad 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,4 +1,8 @@
 ---
+- name: simple versionscheck
+  include_tasks: versioncheck.yml
+  when: submodules_versioncheck | bool
+
 - name: Install nginx
   include_tasks: installation.yml
 
diff --git a/tasks/versioncheck.yml b/tasks/versioncheck.yml
new file mode 100644
index 0000000..1ca07b5
--- /dev/null
+++ b/tasks/versioncheck.yml
@@ -0,0 +1,46 @@
+---
+- name: Create directory for versionscheck
+  become: true
+  file:
+    path: '/etc/.ansible-version'
+    state: directory
+    mode: 0755
+  when: submodules_versioncheck|bool
+
+- name: check playbook version
+  become: true
+  slurp:
+    src: "/etc/.ansible-version/{{ playbook_version_path }}"
+  register: playbook_version
+  when: submodules_versioncheck|bool
+  ignore_errors: true
+  failed_when: false
+
+- name: Print remote role version
+  debug:
+    msg: "Remote role version: {{ playbook_version.content | default('Y3VycmVudGx5IG5vdCBkZXBsb3llZAo=') | b64decode | string }}"
+  when: submodules_versioncheck|bool
+
+- name: Print locale role version
+  debug:
+    msg: "Local role version: '{{ playbook_version_number|string }}'."
+  when: submodules_versioncheck|bool
+
+- name: Check if your version is outdated
+  fail:
+    msg: "Your ansible module has the version '{{ playbook_version_number }}' and is outdated. You need to update it!"
+  when:
+    - playbook_version.content|default("Mgo=")|b64decode|int - 1 >= playbook_version_number|int and submodules_versioncheck|bool
+
+- name: check if '/etc/ansible-version/' is empty
+  find:
+    paths: '/etc/ansible-version/'
+  register: filesFound
+
+- name: write new version to remote disk
+  become: true
+  copy:
+    content: "{{ playbook_version_number }}"
+    dest: "/etc/.ansible-version/{{ playbook_version_path }}"
+    mode: '0644'
+  when: submodules_versioncheck|bool
diff --git a/vars/main.yml b/vars/main.yml
new file mode 100644
index 0000000..aff862e
--- /dev/null
+++ b/vars/main.yml
@@ -0,0 +1,3 @@
+---
+playbook_version_number: 22  # should be int
+playbook_version_path: 'do1jlr.nginx_roles-ansible.version'