tobilg/mesos-master repository overview

⁠Mesos Master

This Docker image is using the base tobilg/mesos image, which is a build of the lastest Mesos version available in the Mesos Git repository⁠. Currently, the latest version is 0.25.0.

⁠Configuration

Mesos allows you to set all configuration options⁠ via environment variables. That means that you don't need any additional scripts to start up a Mesos master node using this Docker image; just pass in -e options to set each configuration option:

$ docker run -d \
    --name mesos_master \
    -e MESOS_LOG_DIR=/var/log/mesos/master \
    -e MESOS_WORK_DIR=/var/lib/mesos/master \
    -e MESOS_ZK=[zookeeper URL] \
    -p 5050:5050 \
    tobilg/mesos-master

Also note the -p option, which exposes the default Mesos master TCP port (5050) on the container host.

⁠Clustering

If you want to run multiple Mesos masters, then you have to additionally specify the quorum size. The size can be calculated as quorum > (number of masters)/2, e.g.

-e MESOS_QUORUM=2

if you have 3 master nodes. Also, you should add a cluster name:

-e MESOS_CLUSTER=[Your cluster name]

⁠Networking

If you want your Mesos master to be accessible via the Docker host ip, then you should run it with the following options (on Debian/Ubuntu etc. based hosts):

$ docker run -d \
    --name mesos_master \
    --net=host \
    -e MESOS_IP=$(/usr/bin/ip -o -4 addr list eth0 | grep global | awk '{print $4}' | cut -d -f1) \
    -e MESOS_LOG_DIR=/var/log \
    -e MESOS_WORK_DIR=/var/lib/mesos/master \
    -e MESOS_ZK=[zookeeper URL] \
    -p 5050:5050 \
    tobilg/mesos-master

Be sure to replace eth0 with the actual interface your host is using for external access. For RedHat/CentOS/Fedora-based hosts' the MESOS_IP line needs to replaced with

-e MESOS_IP=$(/sbin/ifconfig eth0 | grep 'inet ' | awk '{print $2}') \