This project is intended to be a replacement for pacemaker and various other fail-over cluster solutions that manages a DRBD filesystem.
nighter@workstation:~/tmp/tmp/cluster-manager$ ./cluster
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Usage: cluster [OPTIONS]
General Options
status Show cluster status.
active [--other_node_passive=False] Set this node to active.
passive [--other_node_active=False] Set this node to passive.
Advanced Options
heartbeat Trigger heartbeat.
heartbeat on [--other_node_ha_enable=False] Enable heartbeat.
heartbeat off [--other_node_ha_disable=False] Disable heartbeat.
heartbeat status Show heartbeat status.
Optional Arguments
--other_node_passive=False Opposite node will not automatic be set to passive.
--other_node_active=False Opposite node will not automatic be set to active.
--other_node_ha_disable=False Opposite node will not automatic set heartbeat to disabled.
--other_node_ha_enable=False Opposite node will not automatic set heartbeat to enabled Needed a DRBD fail-over solution for OMD and Throughtworks Go on RHEL6 and pacemaker was not sufficient.
First configure a DRBD filesystem.
Install dependencies.
node1|node2 # yum -y install git python-devel python-pip gccInstall cluster-manager toolset.
node1|node2 # useradd -m cluster
node1|node2 # echo "cluster" | passwd --stdin cluster
node1|node2 # su - cluster
node1|node2 $ git init
node1|node2 $ git remote add origin https://github.com/n1ght3r/cluster-manager.git
node1|node2 $ git pull origin masterInstall required python modules.
node1|node2 # pip install -r /home/cluster/clusterlib/requirements.txtConfigure bash completion.
node1|node2 # ln -s /home/cluster/clusterlib/bash_completion /etc/bash_completion.d/clusterCluster user need sudo support.
node1|node2 # echo "cluster ALL=NOPASSWD: ALL" | (EDITOR="tee -a" visudo) Note If you are concern of the security you can only add commands required by cluster manager toolset and not allow "ALL"
Edit config file on both nodes.
node1|node2 $ vim ~/clusterlib/cluster.cfgFramework consist of plugins to handle different applications. At the moment plugins exist for omd and Troughtworks Go. Look at the other plugins to mimic the structure and create your own plugin if your application is not covered.
node1|node2 $ cat ~/clusterlib/plugins/omd.pyFeel free to contribute.
Apache Software License 1.1