docker: user customization daemon.json.j2

davestephens · Nov 11, 2021 · 1c4a22d · 1c4a22d
1 parent 647aa8d
commit 1c4a22d
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Showing 4 changed files with 14 additions and 5 deletions.
diff --git a/roles/ansible-nas-docker/defaults/main.yml b/roles/ansible-nas-docker/defaults/main.yml
@@ -10,3 +10,9 @@ docker_image_directory: "{{ docker_home }}/data"
 # Docker storage driver, see https://docs.docker.com/storage/storagedriver/select-storage-driver/#supported-backing-filesystems
 # You might want to change this to ZFS, depending on your underlying filesystem.
 docker_storage_driver: overlay2
+
+# Docker daemon configuration options added to /etc/docker/daemon.json
+docker_daemon_json:
+- '"data-root": "{{ docker_image_directory }}"'
+- '"storage-driver": "{{ docker_storage_driver }}"'
+
diff --git a/roles/ansible-nas-docker/tasks/main.yml b/roles/ansible-nas-docker/tasks/main.yml
@@ -34,9 +34,13 @@
 
 - name: Update Docker home from install default
   template:
-    src: daemon.json
+    src: daemon.json.j2
     dest: /etc/docker/daemon.json
   register: docker_config
+  vars:
+    items: "{{ docker_daemon_json }}"
+  tags:
+  - ansible-nas-docker:daemon_json
 
 - name: Restart Docker
   service:

diff --git a/roles/ansible-nas-docker/templates/daemon.json b/roles/ansible-nas-docker/templates/daemon.json
diff --git a/roles/ansible-nas-docker/templates/daemon.json.j2 b/roles/ansible-nas-docker/templates/daemon.json.j2
@@ -0,0 +1,3 @@
+{
+  {{ items|join(",\n  ") }}
+}