The ansible-mesos role supports the installation and configuration of a mesos cluster with options for master, slave or a master-slave setup. It supports Ubuntu and RedHat/Centos.
It also allows the setting of specific slave executors so you can run with native docker support.
- ansible-zookeeper, or a zookeeper server
Combined with Ansible groups this role makes it easy to specify a multi-node Mesos master for high availability.
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zookeeper_hostnamesspecifies the list of zookeeper nodes used by Mesos for HA. By default this is the current node's short hostname and the default zookeeper port (e.g.mesos-master01:2181). It can be constructed in your playbook by combining all nodes in your zookeeper group:- { role: 'ansible-mesos', zookeeper_hostnames: "{{ groups.zookeeper_hosts | join(':' + zookeeper_client_port + ',') }}:{{ zookeeper_client_port }}" }which produces
zookeeper1:2181,zookeeper2:2181,zookeeper3:2181. This gets merged into the mesos_zookeeper_masters uri. -
mesos_quorumspecifies the size of the quorum for leader election. If you are running a cluster with multiple masters, you will want to set this value ton/2 + 1, wherenis the number of Mesos masters in the cluster. Defaults to 1. -
mesos_hostnameis used to identify hosts in the Mesos cluster. It defaults to{{ ansible_hostname }}, which is the short hostname of the server. If you have multiple hosts with the same short hostname, you may want to set this to{{ ansible_fqdn }}or{{ ansible_default_ipv4.address }}to ensure the Mesos hostname is unique.
Docker is only required on slave nodes and is not installed by default. To use docker with Mesos ensure that docker is installed on slave nodes. You can then set mesos_containerizers: "docker,mesos" for slave nodes.
See the vars/main.yml file for specific role settings and the Mesos configuration page for Mesos settings.