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>

3 files changed, 24 insertions, 3 deletions

diff --git a/roles/openshift_master/tasks/main.yml b/roles/openshift_master/tasks/main.yml
index 9cd6b6c81..2ef61cddf 100644
--- a/roles/openshift_master/tasks/main.yml
+++ b/roles/openshift_master/tasks/main.yml
@@ -131,6 +131,10 @@
 - name: Install the systemd units
   include: systemd_units.yml
 
+- name: Install Master system container
+  include: system_container.yml
+  when: openshift.common.is_containerized | bool and openshift.common.is_master_system_container | bool
+
 - name: Create session secrets file
   template:
     dest: "{{ openshift.master.session_secrets_file }}"
diff --git a/roles/openshift_master/tasks/system_container.yml b/roles/openshift_master/tasks/system_container.yml
new file mode 100644
index 000000000..25c179e71
--- /dev/null
+++ b/roles/openshift_master/tasks/system_container.yml
@@ -0,0 +1,17 @@
+---
+- name: Pre-pull master system container image
+  command: >
+    atomic pull --storage=ostree {{ openshift.common.system_images_registry }}/{{ openshift.master.master_system_image }}:{{ openshift_image_tag }}
+  register: pull_result
+  changed_when: "'Pulling layer' in pull_result.stdout"
+
+- name: Uninstall Master system container package
+  command: >
+    atomic uninstall {{ openshift.common.service_type }}-master
+  failed_when: False
+  when: openshift.common.version != openshift_version
+
+- name: Install Master system container package
+  command: >
+    atomic install --system --name={{ openshift.common.service_type }}-master {{ openshift.common.system_images_registry }}/{{ openshift.master.master_system_image }}:{{ openshift_image_tag }}
+  when: openshift.common.version != openshift_version
diff --git a/roles/openshift_master/tasks/systemd_units.yml b/roles/openshift_master/tasks/systemd_units.yml
index 39ea42ab3..4ab98cbbb 100644
--- a/roles/openshift_master/tasks/systemd_units.yml
+++ b/roles/openshift_master/tasks/systemd_units.yml
@@ -20,14 +20,14 @@
     docker pull {{ openshift.master.master_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_master_system_container | bool
 
 # workaround for missing systemd unit files
 - name: Create the systemd unit files
   template:
     src: "master_docker/master.docker.service.j2"
     dest: "{{ containerized_svc_dir }}/{{ openshift.common.service_type }}-master.service"
-  when: openshift.common.is_containerized | bool and (openshift.master.ha is not defined or not openshift.master.ha | bool)
+  when: openshift.common.is_containerized | bool and (openshift.master.ha is not defined or not openshift.master.ha | bool and not openshift.common.is_master_system_container | bool)
   register: create_master_unit_file
 
 - command: systemctl daemon-reload
@@ -132,7 +132,7 @@
     dest: "/etc/systemd/system/{{ openshift.common.service_type }}-master.service"
     src: master_docker/master.docker.service.j2
   register: install_result
-  when: openshift.common.is_containerized | bool and openshift.master.ha is defined and not openshift.master.ha | bool
+  when: openshift.common.is_containerized | bool and openshift.master.ha is defined and not openshift.master.ha | bool and not openshift.common.is_master_system_container | bool
 
 - name: Preserve Master Proxy Config options
   command: grep PROXY /etc/sysconfig/{{ openshift.common.service_type }}-master