This is a web application that uses Java, oVirt API and PostgreSQL to perform the task needed to for oVirt's Disaster Recovery.
- Every master Storage domain for each Data Center has been replicated from site A to site B.
- There is an exact copy of the RHEV-M/Engine available to run on site B, in case of DR.
- Please refer to next section.
- This project try to implement Approach #2, presented on this slides DevConf.cz - 2014 Disaster Recovery Strategies Using oVirt's new Storage Connection Management Features
- It uses 100% API
- RHV/oVirt 3.6.10+ | RHV/oVirt 4.0, 4.1
- Centos/RHEL 7.x -> latest version (minimal installation)
- Java Oracle|OpenJDK 8
- MariaDB/MySQL 5.x (for storing application configuration and parameters)
- Play Framework 1.4, we need some help freeing the app, from this framework, we needed to deliver the app fast for a customer, so we used this framework. Play Framework
- Always update your OS packages, then install required.
yum update -y
- ORACLE
For RHEL 7.x
subscription-manager repos --enable rhel-7-server-thirdparty-oracle-java-rpms ; \
yum install java-1.8.0-oracle -y
For Centos 7.x
Download from: Java 1.8 Oracle
yum localinstall jre-8u91-linux-x64.rpm -y
- OpenJDK
For RHEL 7.x | Centos 7.x
yum install java-1.8.0-openjdk-headless
Verify Java version
[root@localhost ~]# java -version
java version "1.8.0_XX"
Java(TM) SE Runtime Environment (build 1.8.0_XX)
Java HotSpot(TM) 64-Bit Server VM (build XX, mixed mode)
Open port TCP 9000
firewall-cmd --add-port=9000/tcp --permanent
systemctl restart firewalld
- Download YUM REPO
cd /etc/yum.repos.d/
curl -O http://supp01.i-t-m.com/repos/ovirt-engine-disaster-recovery.repo
This is a nightly build !!
- Install RPMs
yum install -y ovirt-engine-disaster-recovery-app
- Start/Enable MariaDB
systemctl enable mariadb
systemctl start mariadb
- MariaDB Secure Installation
mysql_secure_installation
- Create DB
mysqladmin create ovirtenginedr -p
-
Import Initial DB
- from RPM
mysql -u root -p ovirtenginedr < /usr/share/doc/ovirt-engine-disaster-recovery-${VERSION}-${RELEASE}/ovirt-engine-disaster-recovery.sql- from SOURCE
mysql -u root -p ovirtenginedr < ~/ovirt-engine-disaster-recovery/docs/ovirt-engine-disaster-recovery.sql -
Create DB User
mysql -u root -p
MariaDB [(none)]> CREATE USER 'ovirtdr'@'localhost' IDENTIFIED BY 'YOURPASSWOR-HERE';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON ovirtenginedr.* TO 'ovirtdr'@'localhost';
- Configure Database Parameters
Edit configuration file: /etc/ovirt-engine-disaster-recovery/ovirt-engine-disaster-recovery.conf
# Change Values on Line 91 for MariaDB
90 # To connect to a local MySQL5 database, use:
91 db=mysql://ovirtdr:YOURPASSWOR-HERE@localhost:3306/ovirtenginedr
- Start
systemctl start ovirt-engine-disaster-recovery
- Status
systemctl status ovirt-engine-disaster-recovery
- Stop
systemctl stop ovirt-engine-disaster-recovery
/var/log/ovirt-engine-disaster-recovery/application.log
You should monitor this file, for Java exceptions or SQL errors.
One common error is supplying wrong credentials to MariaDB.
-
Build Deps
- wget
- git
- unzip
- bower
- epel-release
- mariadb-server
-
Install Deps
sudo yum install wget -y
sudo yum install git -y
sudo yum install unzip -y
sudo yum install epel-release -y
sudo yum install npm -y
sudo yum install mariadb-server -y
- Install bower
npm install bower
- Install Java 8
wget --no-cookies \
--no-check-certificate \
--header "Cookie: oraclelicense=accept-securebackup-cookie" \
"http://download.oracle.com/otn-pub/java/jdk/8u101-b13/jdk-8u101-linux-x64.rpm" \
-O jdk-8u101-linux-x64.rpm
sudo rpm -Uvh jdk-8u101-linux-x64.rpm
- Download Play Framework
wget https://downloads.typesafe.com/play/1.4.2/play-1.4.2.zip
- Unzip Play Framework
unzip play-1.4.2.zip
- Clone REPO
git clone https://github.com/xandradx/ovirt-engine-disaster-recovery.git
- Log configuration
sed -i 's/^log4j.appender.Rolling.File=.*/log4j.appender.Rolling.File=\/var\/log\/ovirt-engine-disaster-recovery\/application.log/g' ~/ovirt-engine-disaster-recovery/conf/log4j.properties
sudo mkdir /var/log/ovirt-engine-disaster-recovery/
sudo chown $USER:$USER /var/log/ovirt-engine-disaster-recovery/
- Install patternfly
cd ~/ovirt-engine-disaster-recovery/
~/node_modules/bower/bin/bower install
- Install dependencies Java ( Play Framework )
cd ~
~/play-1.4.2/play deps ovirt-engine-disaster-recovery
- Add firewall rule
sudo firewall-cmd --add-port=9000/tcp
sudo firewall-cmd --add-port=9000/tcp --permanent
-
[Configure Database] [Configure Database]: https://github.com/xandradx/ovirt-engine-disaster-recovery#configure-database
-
Create Symbolic Link for configuration
sudo mkdir /etc/ovirt-engine-disaster-recovery
sudo ln -s ~/ovirt-engine-disaster-recovery/conf/application.conf /etc/ovirt-engine-disaster-recovery/ovirt-engine-disaster-recovery.conf
-
[Configure App] [Configure App]: https://github.com/xandradx/ovirt-engine-disaster-recovery#application-configuration
-
Starting Service
~/play-1.4.2/play start ovirt-engine-disaster-recovery
- Administration Guide
- Spanish Videos
- [English Videos](coming soon)
- Chocomango - José Eduardo Andrade Escobar jandrad@chocomando.net
- ITM - Jorge Luis Andrade Escobar jandrade@itm.gt (yes, we are brothers)