This project builds a fault tolerant and high availability Mesos Cluster using Docker containers by turning this set of instructions Mesosphere.io - Setting up a Mesosphere Cluster into containers.

This lets you launch a fault tolerant multi node cluster with about 8 Docker commands.

Running through these steps on a single node will turn up a fully functional Mesos cluster with:

• ZooKeeper
• Meso Master
• Marathon
• Meso Slave

You then can goto the Marathon's web page and submit a job.

1. Export out the docker machine's IP. Here we are running containers on default machine.

     HOST_IP=$(docker-machine env default)
   

2. Start Zookeeper

      docker run -d \
      -e SERVER_ID=1 \
      -e ADDITIONAL_ZOOKEEPER_1=server.1=1.1.1.1:2888:3888 \
      -e ADDITIONAL_ZOOKEEPER_2=server.2=1.1.1.1:2888:3888 \
      -e ADDITIONAL_ZOOKEEPER_3=server.3=1.1.1.1:2888:3888 \
      -p 2181:2181 \
      -p 2888:2888 \
      -p 3888:3888 \
      garland/zookeeper
   

3. Start Meso Master

      docker run --net="host" \
      -p 5050:5050 \
      -e "MESOS_HOSTNAME=${HOST_IP}" \
      -e "MESOS_IP=${HOST_IP}" \
      -e "MESOS_ZK=zk://${HOST_IP}:2181/mesos" \
      -e "MESOS_PORT=5050" \
      -e "MESOS_LOG_DIR=/var/log/mesos" \
      -e "MESOS_QUORUM=1" \
      -e "MESOS_REGISTRY=in_memory" \
      -e "MESOS_WORK_DIR=/var/lib/mesos" \
      -d \
      garland/mesosphere-docker-mesos-master
   

4. Start Marathon

     docker run \
     -d \
     -p 8080:8080 \
     garland/mesosphere-docker-marathon --master zk://${HOST_IP}:2181/mesos --zk zk://${HOST_IP}:2181/marathon
   

5. Start Meso Slave in a container

     docker run -d \
     --entrypoint="mesos-slave" \
     -e "MESOS_MASTER=zk://${HOST_IP}:2181/mesos" \
     -e "MESOS_LOG_DIR=/var/log/mesos" \
     -e "MESOS_LOGGING_LEVEL=INFO" \
     garland/mesosphere-docker-mesos-master:latest
   

6. Goto the Meso's Web page

     http://localhost:5050
   
     ssh -F ssh.config -L 5050:${HOST_IP}:5050 core@${HOST_IP}
   

7. Goto the Marathon's Web page

     http://localhost:8080
   
     ssh -F ssh.config -L 5050:${HOST_IP}:5050 -L 8080:${HOST_IP}:8080 core@${HOST_IP}
   

For this setup, we will need 2 servers with Docker installed on it.

1. Export out the 2 servers' IP that we will be using on each server

     HOST_IP_1=10.11.31.7
     HOST_IP_2=10.11.33.193
   

2. Start ZooKeepers

   On host #1

     docker run -d \
     --net="host" \
     -e SERVER_ID=1 \
     -e ADDITIONAL_ZOOKEEPER_1=server.1=${HOST_IP_1}:2888:3888 \
     -e ADDITIONAL_ZOOKEEPER_2=server.2=${HOST_IP_2}:2888:3888 \
     garland/zookeeper
   

   On host #2

     docker run -d \
     --net="host" \
     -e SERVER_ID=2 \
     -e ADDITIONAL_ZOOKEEPER_1=server.1=${HOST_IP_1}:2888:3888 \
     -e ADDITIONAL_ZOOKEEPER_2=server.2=${HOST_IP_2}:2888:3888 \
     garland/zookeeper
   

   The only difference is the "SERVER_ID". You can repeat this for the next X number of ZooKeepers you want to run.

3. Start Mesos Masters

   On host #1

      docker run --net="host" \
      -p 5050:5050 \
      -e "MESOS_HOSTNAME=${HOST_IP_1}" \
      -e "MESOS_IP=${HOST_IP_1}" \
      -e "MESOS_ZK=zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/mesos" \
      -e "MESOS_PORT=5050" \
      -e "MESOS_LOG_DIR=/var/log/mesos" \
      -e "MESOS_QUORUM=1" \
      -e "MESOS_REGISTRY=in_memory" \
      -e "MESOS_WORK_DIR=/var/lib/mesos" \
      -d \
      garland/mesosphere-docker-mesos-master
   

   On host #2

      docker run --net="host" \
      -p 5050:5050 \
      -e "MESOS_HOSTNAME=${HOST_IP_2}" \
      -e "MESOS_IP=${HOST_IP_2}" \
      -e "MESOS_ZK=zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/mesos" \
      -e "MESOS_PORT=5050" \
      -e "MESOS_LOG_DIR=/var/log/mesos" \
      -e "MESOS_QUORUM=1" \
      -e "MESOS_REGISTRY=in_memory" \
      -e "MESOS_WORK_DIR=/var/lib/mesos" \
      -d \
      garland/mesosphere-docker-mesos-master
   

4. Start Marathon

     docker run \
     -d \
     -p 8080:8080 \
     garland/mesosphere-docker-marathon --master zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/mesos --zk zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/marathon
   

5. Start Meso Slaves in a container

   On host #1

     docker run -d \
     --entrypoint="mesos-slave" \
     -e "MESOS_MASTER=zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/mesos" \
     -e "MESOS_LOG_DIR=/var/log/mesos" \
     -e "MESOS_LOGGING_LEVEL=INFO" \
     garland/mesosphere-docker-mesos-master:latest
   

   On host #2

     docker run -d \
     --entrypoint="mesos-slave" \
     -e "MESOS_MASTER=zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/mesos" \
     -e "MESOS_LOG_DIR=/var/log/mesos" \
     -e "MESOS_LOGGING_LEVEL=INFO" \
     garland/mesosphere-docker-mesos-master:latest
   

6. Start some jobs

   You can follow the same steps for the single node setup (#6, #7) for starting jobs.