From c3959d43c6b80bf03e081823a950ce7a7009e4f2 Mon Sep 17 00:00:00 2001
From: Jake Howard <git@theorangeone.net>
Date: Tue, 28 Jan 2020 21:55:53 +0000
Subject: [PATCH] Install watchtower

Also move file masks to config so they're consistent
---
 .../files/watchtower/docker-compose.yml       |  7 +++++
 ansible/roles/docker/tasks/main.yml           |  3 ++
 ansible/roles/docker/tasks/netdata.yml        |  8 ++---
 ansible/roles/docker/tasks/watchtower.yml     | 30 +++++++++++++++++++
 ansible/roles/docker/vars/docker.yml          |  3 ++
 5 files changed, 46 insertions(+), 5 deletions(-)
 create mode 100644 ansible/roles/docker/files/watchtower/docker-compose.yml
 create mode 100644 ansible/roles/docker/tasks/watchtower.yml

diff --git a/ansible/roles/docker/files/watchtower/docker-compose.yml b/ansible/roles/docker/files/watchtower/docker-compose.yml
new file mode 100644
index 0000000..c2aaebd
--- /dev/null
+++ b/ansible/roles/docker/files/watchtower/docker-compose.yml
@@ -0,0 +1,7 @@
+version: "3"
+services:
+  watchtower:
+    image: containrrr/watchtower:latest
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    command: --cleanup --schedule "0 23 * * *"
diff --git a/ansible/roles/docker/tasks/main.yml b/ansible/roles/docker/tasks/main.yml
index f1483a5..078a4cf 100644
--- a/ansible/roles/docker/tasks/main.yml
+++ b/ansible/roles/docker/tasks/main.yml
@@ -6,3 +6,6 @@
 
 - name: Install netdata
   include: netdata.yml
+
+- name: Install watchtower
+  include: watchtower.yml
diff --git a/ansible/roles/docker/tasks/netdata.yml b/ansible/roles/docker/tasks/netdata.yml
index c206d52..4c4dc37 100644
--- a/ansible/roles/docker/tasks/netdata.yml
+++ b/ansible/roles/docker/tasks/netdata.yml
@@ -3,7 +3,7 @@
     path: '/opt/netdata'
     state: directory
     owner: "{{ docker_user.name }}"
-    mode: 0755
+    mode: "{{ docker_compose_directory_mask }}"
   become: true
   become_user: root
 
@@ -11,15 +11,13 @@
   template:
     src: files/netdata/docker-compose.yml
     dest: "/opt/netdata/docker-compose.yml"
-    mode: 0644
+    mode: "{{ docker_compose_file_mask }}"
     owner: "{{ docker_user.name }}"
-    backup: true
-    trim_blocks: false
   register: compose_file
   become: true
   become_user: root
 
-- name: Cycle container
+- name: Cycle netdata container
   docker_compose:
     project_src: /opt/netdata
     pull: true
diff --git a/ansible/roles/docker/tasks/watchtower.yml b/ansible/roles/docker/tasks/watchtower.yml
new file mode 100644
index 0000000..da8def7
--- /dev/null
+++ b/ansible/roles/docker/tasks/watchtower.yml
@@ -0,0 +1,30 @@
+- name: Create watchtower directory
+  file:
+    path: '/opt/watchtower'
+    state: directory
+    owner: "{{ docker_user.name }}"
+    mode: "{{ docker_compose_directory_mask }}"
+  become: true
+  become_user: root
+
+- name: Install watchtower config
+  template:
+    src: files/watchtower/docker-compose.yml
+    dest: "/opt/watchtower/docker-compose.yml"
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+  register: compose_file
+  become: true
+  become_user: root
+
+- name: Cycle watchtower container
+  docker_compose:
+    project_src: /opt/watchtower
+    pull: true
+    remove_orphans: true
+    remove_volumes: true
+    state: "{{ item }}"
+  when: compose_file.changed
+  loop:
+    - absent
+    - present
diff --git a/ansible/roles/docker/vars/docker.yml b/ansible/roles/docker/vars/docker.yml
index 1d68f11..61c562d 100644
--- a/ansible/roles/docker/vars/docker.yml
+++ b/ansible/roles/docker/vars/docker.yml
@@ -1,3 +1,6 @@
 docker_user:
   id: 3000
   name: dockeruser
+
+docker_compose_file_mask: 0664
+docker_compose_directory_mask: 0775