From 56add31e8d747bbe75a55d96e5727bb28aa72d7a Mon Sep 17 00:00:00 2001
From: Lilian Roller <lilian.roller@wingcon.com>
Date: Mon, 13 May 2019 17:38:29 +0200
Subject: [PATCH] implement version checking

---
 defaults/main.yml |  1 +
 tasks/main.yml    | 33 +++++++++++++++++++++++++++++++++
 vars/main.yml     |  3 +++
 3 files changed, 37 insertions(+)
 create mode 100644 vars/main.yml

diff --git a/defaults/main.yml b/defaults/main.yml
index 24373ee..524b6b2 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -35,3 +35,4 @@ fedora_packages:
   - libselinux-python
 
 upgrade_packages_to_latest_version: false
+submodules_versioncheck: true
diff --git a/tasks/main.yml b/tasks/main.yml
index 0938141..a736f9e 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,4 +1,37 @@
 ---
+- name: Create directory for versionscheck
+  become: true
+  file:
+    path: '/etc/ansible-version'
+    state: directory
+    mode: 0755
+  when: submodules_versioncheck
+
+- name: check playbook version
+  become: true
+  slurp:
+    src: "{{ playbook_version_path }}"
+  register: playbook_version 
+  when: submodules_versioncheck
+  ignore_errors: yes
+
+- name: Print version
+  debug:
+    msg: "Remote playbook version: '{{ playbook_version.content | default('Y3VycmVudGx5IG5vdCBkZXBsb3llZAo=') | b64decode | string }}'. Local playbook version: '{{ playbook_version_number|string }}'."
+  when: submodules_versioncheck
+
+- name: Check if your version is outdated
+  fail:
+    msg: "Your current ansible module has the version '{{ playbook_version_number }}' and is outdated. Please update it at least to version '{{ playbook_version.content | default('Y3VycmVudGx5IG5vdCBkZXBsb3llZAo=') | b64decode }}'!"
+  when: 
+    - playbook_version.content|default("Mgo=")|b64decode|int - 1 >= playbook_version_number|int and submodules_versioncheck 
+
+- name: write new version to remote disk
+  become: true
+  copy:
+    content: "{{ playbook_version_number }}"
+    dest: "{{ playbook_version_path }}"
+  when: submodules_versioncheck
 
 - name: Install common base packages [Debian]
   become: yes
diff --git a/vars/main.yml b/vars/main.yml
new file mode 100644
index 0000000..9a46404
--- /dev/null
+++ b/vars/main.yml
@@ -0,0 +1,3 @@
+---
+playbook_version_number: 100
+playbook_version_path: '/etc/ansible-version/base-packages_ffbsee_github.version'