From 228f85bc88a728b3466cec4a8686b9d1333031f2 Mon Sep 17 00:00:00 2001
From: Andrea Dell'Amico <adellam@isti.cnr.it>
Date: Tue, 13 Dec 2016 18:48:58 +0100
Subject: [PATCH] library/roles/couchbase: Add a backup script to the couchbase
 role. It needs to be run on one node only. d4science-ghn-cluster: couchbase,
 configure and install the backup script on couchbase06.

---
 couchbase/defaults/main.yml             |  5 ++++
 couchbase/tasks/couchbase.yml           | 31 +++++++++++++++----------
 couchbase/templates/couchbase_backup.j2 | 10 ++++++++
 3 files changed, 34 insertions(+), 12 deletions(-)
 create mode 100644 couchbase/templates/couchbase_backup.j2

diff --git a/couchbase/defaults/main.yml b/couchbase/defaults/main.yml
index 2cde31e9..df48ead0 100644
--- a/couchbase/defaults/main.yml
+++ b/couchbase/defaults/main.yml
@@ -41,6 +41,11 @@ couchbase_epmd_port: 4369
 couchbase_dataExchangeFirst_port: 21100
 couchbase_dataExchangeLast_port: 21299
 
+couchbase_backup_enabled: False
+couchbase_backup_dest_dir: /var/cache
+couchbase_backup_command: /opt/couchbase/bin/cbbackup
+couchbase_backup_type: full
+
 couchbase_ganglia_plugin_enabled: True
 #couchbase_ganglia_url_username:
 #couchbase_ganglia_url_password:
diff --git a/couchbase/tasks/couchbase.yml b/couchbase/tasks/couchbase.yml
index 5a55a568..acdbe02d 100644
--- a/couchbase/tasks/couchbase.yml
+++ b/couchbase/tasks/couchbase.yml
@@ -13,14 +13,6 @@
       with_items:
         - couchbase-server-community
 
-    - name: Ensure couchbase is started and enabled
-      service: name=couchbase-server state=started enabled=yes
-      when: couchbase_start_server
-
-    - name: Ensure couchbase is stopped and disabled
-      service: name=couchbase-server state=stopped enabled=no
-      when: not couchbase_start_server
-
   when:
     - couchbase_install_packages
     - couchbase_install_from_repo
@@ -31,6 +23,16 @@
     - name: Get and install the specific Couchbase package
       apt: deb={{ couchbase_direct_package_url }}
 
+  when:
+    - couchbase_install_packages
+    - not couchbase_install_from_repo
+  tags: couchbase 
+
+- block:
+    - name: Install the backup script when needed
+      template: src=couchbase_backup.j2 dest=/usr/local/bin/couchbase_backup owner=root group=root mode=0550
+      when: couchbase_backup_enabled
+
     - name: Ensure couchbase is started and enabled
       service: name=couchbase-server state=started enabled=yes
       when: couchbase_start_server
@@ -39,10 +41,9 @@
       service: name=couchbase-server state=stopped enabled=no
       when: not couchbase_start_server
 
-  when:
-    - couchbase_install_packages
-    - not couchbase_install_from_repo
-  tags: couchbase 
+  when: couchbase_install_packages
+  tags: [ 'couchbase', 'couchbase_backup' ]
+
 
 
 - block:
@@ -55,5 +56,11 @@
         - 'couchbase-server-community'
         - 'couchbase-release'
 
+    - name: Remove the couchbase backup script and the couchbase non packaged files
+      file: dest={{ item }} state=absent
+      with_items:
+        - '/usr/local/bin/couchbase_backup'
+        - '/opt/couchbase'
+
   when: not couchbase_install_packages
   tags: couchbase 
diff --git a/couchbase/templates/couchbase_backup.j2 b/couchbase/templates/couchbase_backup.j2
new file mode 100644
index 00000000..23b18c98
--- /dev/null
+++ b/couchbase/templates/couchbase_backup.j2
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+LOG_FILE={{ couchbase_backup_dest_dir }}/couchbase_backup.log
+
+COUCH_URL="http://{{ ansible_fqdn }}:{{ couchbase_console_port }}/"
+
+{{ couchbase_backup_command }} $COUCH_URL {{ couchbase_backup_dest_dir }}/ -m {{ couchbase_backup_type }} -u {{ couchbase_backup_user }} -p {{ couchbase_backup_password }} > $LOG_FILE 2>&1
+
+exit $?
+