From 08f1caed84d46d0263f0c1aaaf2da891946b1a96 Mon Sep 17 00:00:00 2001
From: Devan Goodwin <dgoodwin@redhat.com>
Date: Mon, 27 Jun 2016 11:15:40 -0300
Subject: Only nuke images when crossing the Docker 1.10 boundary in upgrade.

---
 .../openshift-cluster/upgrades/docker/upgrade.yml  | 27 ++++++++--------------
 .../upgrades/docker/upgrade_check.yml              | 17 +++++++++-----
 2 files changed, 21 insertions(+), 23 deletions(-)

(limited to 'playbooks/common/openshift-cluster/upgrades/docker')

diff --git a/playbooks/common/openshift-cluster/upgrades/docker/upgrade.yml b/playbooks/common/openshift-cluster/upgrades/docker/upgrade.yml
index 78b123881..81db9ef20 100644
--- a/playbooks/common/openshift-cluster/upgrades/docker/upgrade.yml
+++ b/playbooks/common/openshift-cluster/upgrades/docker/upgrade.yml
@@ -1,7 +1,7 @@
 ---
 # We need docker service up to remove all the images, but these services will keep
 # trying to re-start and thus re-pull the images we're trying to delete.
-- name: stop containerized services
+- name: Stop containerized services
   service: name={{ item }} state=stopped
   with_items:
     - "{{ openshift.common.service_type }}-master"
@@ -11,25 +11,18 @@
     - etcd_container
     - openvswitch
   failed_when: false
-  when: docker_upgrade is defined and docker_upgrade | bool and openshift.common.is_containerized | bool
+  when: docker_upgrade | bool and openshift.common.is_containerized | bool
 
-- name: remove all containers and images
+- name: Remove all containers and images
   script: nuke_images.sh docker
   register: nuke_images_result
-  when: docker_upgrade is defined and docker_upgrade | bool
+  when: docker_upgrade | bool and docker_upgrade_nuke_images is defined and docker_upgrade_nuke_images | bool
 
-# todo: should we use the docker role to actually do the upgrade?
-- name: upgrade to specified docker version
+- name: Upgrade Docker
   action: "{{ ansible_pkg_mgr }} name=docker{{ '-' + docker_version }} state=present"
-  register: docker_upgrade_result
-  when: docker_upgrade is defined and docker_upgrade | bool and docker_version is defined
+  when: docker_upgrade | bool
 
-- name: upgrade to latest docker version
-  action: "{{ ansible_pkg_mgr }} name=docker state=latest"
-  register: docker_upgrade_result
-  when: docker_upgrade is defined and docker_upgrade | bool and docker_version is not defined
-
-- name: restart containerized services
+- name: Restart containerized services
   service: name={{ item }} state=started
   with_items:
     - etcd_container
@@ -39,9 +32,9 @@
     - "{{ openshift.common.service_type }}-master-controllers"
     - "{{ openshift.common.service_type }}-node"
   failed_when: false
-  when: docker_upgrade is defined and docker_upgrade | bool and openshift.common.is_containerized | bool
+  when: docker_upgrade | bool and openshift.common.is_containerized | bool
 
-- name: wait for master api to come back online
+- name: Wait for master API to come back online
   become: no
   local_action:
     module: wait_for
@@ -49,4 +42,4 @@
       state=started
       delay=10
       port="{{ openshift.master.api_port }}"
-  when: docker_upgrade is defined and docker_upgrade | bool and inventory_hostname in groups.oo_masters_to_config
+  when: docker_upgrade | bool and inventory_hostname in groups.oo_masters_to_config
diff --git a/playbooks/common/openshift-cluster/upgrades/docker/upgrade_check.yml b/playbooks/common/openshift-cluster/upgrades/docker/upgrade_check.yml
index caf8d1de5..7fd4657d5 100644
--- a/playbooks/common/openshift-cluster/upgrades/docker/upgrade_check.yml
+++ b/playbooks/common/openshift-cluster/upgrades/docker/upgrade_check.yml
@@ -39,12 +39,17 @@
     docker_upgrade: False
   when: docker_upgrade is not defined or docker_upgrade | bool
 
-- name: Flag for upgrade if Docker version does not equal latest
-  set_fact:
-    docker_upgrade: true
-  when: docker_version is not defined and pkg_check.rc == 0 and curr_docker_version.stdout | version_compare(avail_docker_version.stdout,'<')
+# Make sure a docker_verison is set if none was requested:
+- set_fact:
+    docker_version: avail_docker_version.stdout
+  when: docker_version is not defined
 
-- name: Flag for upgrade if Docker version does not equal requested version
+- name: Flag for Docker upgrade if necessary
   set_fact:
-    docker_upgrade: true
+    docker_upgrade: True
   when: docker_version is defined and pkg_check.rc == 0 and curr_docker_version.stdout | version_compare(docker_version,'<')
+
+- name: Flag to delete all images prior to upgrade if crossing Docker 1.10 boundary
+  set_fact:
+      docker_upgrade_nuke_images: True
+  when: docker_upgrade_nuke_images is not defined and docker_upgrade | bool and curr_docker_version.stdout | version_compare('1.10','<') and docker_version | version_compare('1.10','>=')
-- 
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