From 4fcbe72aeaf359d56ac636a8722f817ec10c629f Mon Sep 17 00:00:00 2001
From: Jan Chaloupka <jchaloup@redhat.com>
Date: Fri, 12 May 2017 16:07:34 +0200
Subject: move etcd upgrade related code into etcd_upgrade role

---
 roles/etcd_upgrade/tasks/backup.yml | 71 +++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 roles/etcd_upgrade/tasks/backup.yml

(limited to 'roles/etcd_upgrade/tasks/backup.yml')

diff --git a/roles/etcd_upgrade/tasks/backup.yml b/roles/etcd_upgrade/tasks/backup.yml
new file mode 100644
index 000000000..1ea6fc59f
--- /dev/null
+++ b/roles/etcd_upgrade/tasks/backup.yml
@@ -0,0 +1,71 @@
+---
+# INPUT r_etcd_backup_sufix_name
+# INPUT r_etcd_backup_tag
+# OUTPUT r_etcd_upgrade_backup_complete
+- set_fact:
+    # ORIGIN etcd_data_dir etcd_common.defaults
+    l_etcd_backup_dir: "{{ etcd_data_dir }}/openshift-backup-{{ r_etcd_backup_tag | default('') }}{{ r_etcd_backup_sufix_name }}"
+
+# TODO: replace shell module with command and update later checks
+- name: Check available disk space for etcd backup
+  shell: df --output=avail -k {{ etcd_data_dir }} | tail -n 1
+  register: avail_disk
+  # AUDIT:changed_when: `false` because we are only inspecting
+  # state, not manipulating anything
+  changed_when: false
+
+# TODO: replace shell module with command and update later checks
+- name: Check current etcd disk usage
+  shell: du --exclude='*openshift-backup*' -k {{ etcd_data_dir }} | tail -n 1 | cut -f1
+  register: etcd_disk_usage
+  when: r_etcd_upgrade_embedded_etcd | bool
+  # AUDIT:changed_when: `false` because we are only inspecting
+  # state, not manipulating anything
+  changed_when: false
+
+- name: Abort if insufficient disk space for etcd backup
+  fail:
+    msg: >
+      {{ etcd_disk_usage.stdout }} Kb disk space required for etcd backup,
+      {{ avail_disk.stdout }} Kb available.
+  when: (r_etcd_upgrade_embedded_etcd | bool) and (etcd_disk_usage.stdout|int > avail_disk.stdout|int)
+
+# For non containerized and non embedded we should have the correct version of
+# etcd installed already. So don't do anything.
+#
+# For containerized installs we now exec into etcd_container
+#
+# For embedded non containerized we need to ensure we have the latest version
+# etcd on the host.
+- name: Install latest etcd for embedded
+  package:
+    name: etcd
+    state: latest
+  when:
+  - r_etcd_upgrade_embedded_etcd | bool
+  - not l_ostree_booted.stat.exists | bool
+
+- name: Generate etcd backup
+  command: >
+    {{ etcdctl_command }} backup --data-dir={{ etcd_data_dir }}
+    --backup-dir={{ l_etcd_backup_dir }}
+
+# According to the docs change you can simply copy snap/db
+# https://github.com/openshift/openshift-docs/commit/b38042de02d9780842dce95cfa0ef45d53b58bc6
+- name: Check for v3 data store
+  stat:
+    path: "{{ etcd_data_dir }}/member/snap/db"
+  register: v3_db
+
+- name: Copy etcd v3 data store
+  command: >
+    cp -a {{ etcd_data_dir }}/member/snap/db
+    {{ l_etcd_backup_dir }}/member/snap/
+  when: v3_db.stat.exists
+
+- set_fact:
+    r_etcd_upgrade_backup_complete: True
+
+- name: Display location of etcd backup
+  debug:
+    msg: "Etcd backup created in {{ l_etcd_backup_dir }}"
-- 
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