atomic-openshift: install as a system container

Use use_system_containers=true in the inventory file

alternatively you can select each component as:

use_openvswitch_system_container=true
use_node_system_container=true
use_master_system_container=true

system_images_registry holds the registry from where to fetch system
containers.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

4 files changed, 61 insertions, 5 deletions

diff --git a/roles/openshift_node/tasks/main.yml b/roles/openshift_node/tasks/main.yml
index e970c4cd1..3e888b77f 100644
--- a/roles/openshift_node/tasks/main.yml
+++ b/roles/openshift_node/tasks/main.yml
@@ -69,7 +69,7 @@
 - name: Persist net.ipv4.ip_forward sysctl entry
   sysctl: name="net.ipv4.ip_forward" value=1 sysctl_set=yes state=present reload=yes
 
-- name: Start and enable openvswitch docker service
+- name: Start and enable openvswitch service
   systemd:
     name: openvswitch.service
     enabled: yes
diff --git a/roles/openshift_node/tasks/node_system_container.yml b/roles/openshift_node/tasks/node_system_container.yml
new file mode 100644
index 000000000..759792b8b
--- /dev/null
+++ b/roles/openshift_node/tasks/node_system_container.yml
@@ -0,0 +1,19 @@
+---
+- name: Pre-pull node system container image
+  command: >
+    atomic pull --storage=ostree {{ openshift.common.system_images_registry }}/{{ openshift.node.node_system_image }}:{{ openshift_image_tag }}
+  register: pull_result
+  changed_when: "'Pulling layer' in pull_result.stdout"
+
+- name: Uninstall Node system container package
+  command: >
+    atomic uninstall {{ openshift.common.service_type }}-node
+  failed_when: False
+  when: openshift.common.version != openshift_version | bool
+
+- name: Install Node system container package
+  command: >
+    atomic install --system --name={{ openshift.common.service_type }}-node {{ openshift.common.system_images_registry }}/{{ openshift.node.node_system_image }}:{{ openshift_image_tag }}
+  register: install_node_result
+  changed_when: "'Extracting' in pull_result.stdout"
+  when: openshift.common.version != openshift_version | bool
diff --git a/roles/openshift_node/tasks/openvswitch_system_container.yml b/roles/openshift_node/tasks/openvswitch_system_container.yml
new file mode 100644
index 000000000..12d62be69
--- /dev/null
+++ b/roles/openshift_node/tasks/openvswitch_system_container.yml
@@ -0,0 +1,19 @@
+---
+- name: Pre-pull OpenVSwitch system container image
+  command: >
+    atomic pull --storage=ostree {{ openshift.common.system_images_registry }}/{{ openshift.node.ovs_system_image }}:{{ openshift_image_tag }}
+  register: pull_result
+  changed_when: "'Pulling layer' in pull_result.stdout"
+
+- name: Uninstall OpenvSwitch system container package
+  command: >
+    atomic uninstall openvswitch
+  failed_when: False
+  when: openshift.common.version != openshift_version | bool
+
+- name: Install OpenvSwitch system container package
+  command: >
+    atomic install --system --name=openvswitch {{ openshift.common.system_images_registry }}/{{ openshift.node.ovs_system_image }}:{{ openshift_image_tag }}
+  when: openshift.common.version != openshift_version | bool
+  notify:
+    - restart docker
diff --git a/roles/openshift_node/tasks/systemd_units.yml b/roles/openshift_node/tasks/systemd_units.yml
index 5243a87fe..941fd1d28 100644
--- a/roles/openshift_node/tasks/systemd_units.yml
+++ b/roles/openshift_node/tasks/systemd_units.yml
@@ -7,14 +7,14 @@
     docker pull {{ openshift.node.node_image }}:{{ openshift_image_tag }}
   register: pull_result
   changed_when: "'Downloaded newer image' in pull_result.stdout"
-  when: openshift.common.is_containerized | bool
+  when: openshift.common.is_containerized | bool and not openshift.common.is_node_system_container | bool
 
 - name: Pre-pull openvswitch image
   command: >
     docker pull {{ openshift.node.ovs_image }}:{{ openshift_image_tag }}
   register: pull_result
   changed_when: "'Downloaded newer image' in pull_result.stdout"
-  when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | bool
+  when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | bool and not openshift.common.is_node_system_container | bool
 
 - name: Install Node dependencies docker service file
   template:
@@ -28,7 +28,9 @@
     dest: "/etc/systemd/system/{{ openshift.common.service_type }}-node.service"
     src: openshift.docker.node.service
   register: install_node_result
-  when: openshift.common.is_containerized | bool
+  when:
+  - openshift.common.is_containerized | bool
+  - not openshift.common.is_node_system_container | bool
 
 - name: Create the openvswitch service env file
   template:
@@ -39,6 +41,19 @@
   notify:
   - restart openvswitch
 
+- name: Install Node system container
+  include: node_system_container.yml
+  when:
+  - openshift.common.is_containerized | bool
+  - openshift.common.is_node_system_container | bool
+
+- name: Install OpenvSwitch system containers
+  include: openvswitch_system_container.yml
+  when:
+  - openshift.common.use_openshift_sdn | default(true) | bool
+  - openshift.common.is_containerized | bool
+  - openshift.common.is_openvswitch_system_container | bool
+
 # May be a temporary workaround.
 # https://bugzilla.redhat.com/show_bug.cgi?id=1331590
 - name: Create OpenvSwitch service.d directory
@@ -58,7 +73,10 @@
   template:
     dest: "/etc/systemd/system/openvswitch.service"
     src: openvswitch.docker.service
-  when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | default(true) | bool
+  when:
+  - openshift.common.is_containerized | bool
+  - openshift.common.use_openshift_sdn | default(true) | bool
+  - not openshift.common.is_openvswitch_system_container | bool
   notify:
   - restart openvswitch