Adding support for docker-storage-setup on overlay

playbooks/container-runtime/private/config.yml

@@ -8,6 +8,12 @@
   roles:
     - role: container_runtime
   tasks:
+    - include_role:
+        name: container_runtime
+        tasks_from: docker_storage_setup_overlay.yml
+      when:
+        - container_runtime_docker_storage_type == "overlay2"
+        - openshift_docker_is_node_or_master | bool
     - include_role:
         name: container_runtime
         tasks_from: package_docker.yml

roles/container_runtime/defaults/main.yml

@@ -55,6 +55,20 @@ openshift_docker_is_node_or_master: "{{ True if inventory_hostname in (groups['o
 
 docker_alt_storage_path: /var/lib/containers/docker
 docker_default_storage_path: /var/lib/docker
+docker_storage_path: "{{ docker_default_storage_path }}"
+docker_storage_size: 40G
+docker_storage_setup_options:
+  vg: docker_vg
+  data_size: 99%VG
+  storage_driver: overlay2
+  root_lv_name: docker-root-lv
+  root_lv_size: 100%FREE
+  root_lv_mount_path: "{{ docker_storage_path }}"
+docker_storage_extra_options:
+- "--storage-opt overlay2.override_kernel_check=true"
+- "--storage-opt overlay2.size={{ docker_storage_size }}"
+- "--graph={{ docker_storage_path}}"
+
 
 # Set local versions of facts that must be in json format for container-daemon.json
 # NOTE: When jinja2.9+ is used the container-daemon.json file can move to using tojson
@@ -131,3 +145,5 @@ l_docker_image_default: "{{ l_docker_image_prepend }}/{{ openshift_docker_servic
 l_docker_image: "{{ openshift_docker_systemcontainer_image_override | default(l_docker_image_default) }}"
 
 l_is_node_system_container: "{{ (openshift_use_node_system_container | default(openshift_use_system_containers | default(false)) | bool) }}"
+
+container_runtime_docker_storage_type: overlay2

roles/container_runtime/tasks/docker_storage_setup_overlay.yml

@@ -0,0 +1,10 @@
+---
+- name: Setup the docker-storage for overlay
+  template:
+    src: docker_storage_setup.j2
+    dest: /etc/sysconfig/docker-storage-setup
+    owner: root
+    group: root
+    mode: 0664
+  when:
+  - container_runtime_docker_storage_driver == 'overlay2'

roles/container_runtime/templates/docker_storage_setup.j2

@@ -0,0 +1,12 @@
+# Edit this file to override any configuration options specified in
+# /usr/lib/docker-storage-setup/docker-storage-setup.
+#
+# For more details refer to "man docker-storage-setup"
+DEVS={{ container_runtime_docker_storage_setup_device }}
+VG={{ docker_storage_setup_options.vg }}
+DATA_SIZE={{ docker_storage_setup_options.data_size }}
+STORAGE_DRIVER="{{ docker_storage_setup_options.storage_driver }}"
+CONTAINER_ROOT_LV_NAME="{{ docker_storage_setup_options.root_lv_name }}"
+CONTAINER_ROOT_LV_SIZE="{{ docker_storage_setup_options.root_lv_size }}"
+CONTAINER_ROOT_LV_MOUNT_PATH="{{ docker_storage_setup_options.root_lv_mount_path }}"
+EXTRA_STORAGE_OPTIONS="{{ docker_storage_extra_options | join(' ') }}"