Merge pull request #1 from theztd/daemon_settings

Daemon settings

README.md

@@ -27,6 +27,15 @@ You can control whether the package is installed, uninstalled, or at the latest
 
 Variables to control the state of the `docker` service, and whether it should start on boot. If you're installing Docker inside a Docker container without systemd or sysvinit, you should set these to `stopped` and set the enabled variable to `no`.
 
+```yaml
+    docker_daemon_settings:
+        data-root: /data
+        debug: true
+
+```
+Configure /etc/docker/daemon.json for more options please read documentation there https://docs.docker.com/config/daemon/
+
+
     docker_install_compose: true
     docker_compose_version: "1.26.0"
     docker_compose_path: /usr/local/bin/docker-compose

defaults/main.yml

@@ -4,6 +4,10 @@ docker_edition: 'ce'
 docker_package: "docker-{{ docker_edition }}"
 docker_package_state: present
 
+# Docker daemon settings (generates /etc/docker/daemon.json)
+# docker_daemon_settings:
+# root-dir: "/data/"
+
 # Service options.
 docker_service_state: started
 docker_service_enabled: true

tasks/main.yml

@@ -11,6 +11,14 @@
     state: "{{ docker_package_state }}"
   notify: restart docker
 
+- name: Configure /etc/docker/daemon.json
+  template:
+    src: daemon.json.j2
+    dest: /etc/docker/daemon.json
+    mode: 0640
+  when: docker_daemon_settings is defined
+  notify: restart docker
+
 - name: Ensure Docker is started and enabled at boot.
   service:
     name: docker

tasks/setup-Debian.yml

@@ -23,11 +23,14 @@
   ignore_errors: "{{ docker_apt_ignore_key_error }}"
 
 - name: Ensure curl is present (on older systems without SNI).
-  package: name=curl state=present
+  package:
+    name: curl
+    state: present
   when: add_repository_key is failed
 
 - name: Add Docker apt key (alternative for older systems without SNI).
-  shell: >
+  shell: |
+    set -o pipefail
     curl -sSL {{ docker_apt_gpg_key }} | sudo apt-key add -
   args:
     warn: false

templates/daemon.json.j2

@@ -0,0 +1 @@
+{{ docker_daemon_settings | to_nice_json() }}