init

tasks/group.yml

@@ -0,0 +1,15 @@
+---
+- name: Setup user for docker usage
+  block:
+    - name: Check if user exists
+      getent:
+        database: passwd
+        key: "{{ user.username }}"
+      register: user_exists
+      ignore_errors: true
+
+    - name: Add user to docker group
+      user:
+        name: "{{ item.username }}"
+        group: docker
+      when: user_exists is not failed

tasks/main.yml

@@ -0,0 +1,37 @@
+---
+- name: Ensure mandatory variables are configured
+  assert:
+    that: "{{ item }} is defined"
+    fail_msg: "You must define the '{{ item }}' variable"
+  with_items:
+    - members
+
+- name: Include resource variables
+  include_vars: "{{ members }}"
+  tags:
+    # Note(d1): we already load in converge.yml so skip here
+    - molecule-notest
+
+# Note(decentral1se): Done in this way because Ansible...
+# Please see this SO answer https://stackoverflow.com/a/39041069
+- name: Include user group tasks
+  include: group.yml user={{ item }}
+  with_items: "{{ members }}"
+
+- name: Ensure Docker python dependencies are installed
+  package:
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - python3-docker
+
+- name: Initialise docker swarm
+  docker_swarm:
+    state: present
+    advertise_addr: "{{ hostvars[inventory_hostname]['ansible_default_ipv4']['address'] }}"
+
+- name: Initialise proxy for traefik
+  docker_network:
+    name: proxy
+    driver: overlay
+  when: swarm_single_node_enable_proxy