mesos+marathon管理docker集群

9780j

服务器架构

主机名	IP	安装服务
mesos-master	192.168.56.7	docker、mesos-master、mesos-slave、marathon、zookeeper
mesos-slave	192.168.56.8	docker、mesos-slave、zookeeper

系统环境

# uname -r

3.10.0-229.el7.x86_64

# cat  /etc/redhat-release

CentOS Linuxrelease 7.1.1503 (Core)

配置hosts

# vim /etc/hosts

192.168.56.7 mesos-master

192.168.56.8 mesos-slave

安装docker

mesos-master

安装docker

[iyunv@mesos-master~]# yum install -y docker

[iyunv@mesos-master~]# systemctl enable docker

[iyunv@mesos-master~]# systemctl start docker

创建nginx镜像

[iyunv@mesos-master~]# docker pull nginx

mesos-slave

安装docker

[iyunv@mesos-slave~]# yum install -y docker

[iyunv@mesos-slave~]# systemctl enable docker

[iyunv@mesos-slave~]# systemctl start docker

创建nginx镜像

[iyunv@mesos-master~]# docker pull nginx

部署zookeeper

mesos-master

安装依赖

[iyunv@mesos-master~]# yum install -y java-1.8.0-openjdk-devel java-1.8.0-openjdk

下载zookeeper

[iyunv@mesos-master~]# mkdir /application

root@mesos-master~]# cd /application/

[iyunv@mesos-masterapplication]# curl -O http://apache.fayea.com/zookeeper/stable/zookeeper-3.4.6.tar.gz

[iyunv@mesos-masterapplication]# tar xf zookeeper-3.4.6.tar.gz

[iyunv@mesos-masterapplication]# ln -s /application/zookeeper-3.4.6 /application/zookeeper

配置zookeeper

[iyunv@mesos-masterapplication]# cd zookeeper/conf/

[iyunv@mesos-masterconf]# grep -v "#" zoo_sample.cfg >zoo.cfg

[iyunv@mesos-masterconf]# vim zoo.cfg

tickTime=2000

initLimit=10

syncLimit=5

dataDir=/application/zookeeper/data

clientPort=2181

server.1=192.168.56.7:2333:3222

server.2=192.168.56.8:2333:3222

[iyunv@mesos-masterconf]# mkdir ../data

[iyunv@mesos-masterconf]# echo 1 >../data/myid

[iyunv@mesos-masterconf]# cd

启动zookeeper

[iyunv@mesos-master~]# /application/zookeeper/bin/zkServer.sh start

JMX enabled bydefault

Using config:/application/zookeeper/bin/../conf/zoo.cfg

Startingzookeeper ... STARTED

[iyunv@mesos-master~]# /application/zookeeper/bin/zkServer.sh status

JMX enabled bydefault

Using config:/application/zookeeper/bin/../conf/zoo.cfg

Error contactingservice. It is probably not running.

**出现Error主要是由于mesos-slave没有启动

mesos-slave

安装依赖

[iyunv@mesos-slave~]# yum install -y java-1.8.0-openjdk-devel java-1.8.0-openjdk

下载zookeeper

[iyunv@mesos-slave~]# mkdir /application

[iyunv@mesos-slave~]# cd /application/

[iyunv@mesos-slaveapplication]# curl -O http://apache.fayea.com/zookeeper/stable/zookeeper-3.4.6.tar.gz

[iyunv@mesos-slaveapplication]# tar xf zookeeper-3.4.6.tar.gz

[iyunv@mesos-slaveapplication]# ln -s /application/zookeeper-3.4.6 /application/zookeeper

配置zookeeper

[iyunv@mesos-slaveapplication]# cd zookeeper/conf/

[iyunv@mesos-slaveconf]# grep -v "#" zoo_sample.cfg >zoo.cfg

[iyunv@mesos-slaveconf]# vim zoo.cfg

tickTime=2000

initLimit=10

syncLimit=5

dataDir=/application/zookeeper/data

clientPort=2181

server.1=192.168.56.7:2333:3222

server.2=192.168.56.8:2333:3222

[iyunv@mesos-slaveconf]# mkdir ../data

[iyunv@mesos-slaveconf]# echo 2 >../data/myid

[iyunv@mesos-slaveconf]# cd

启动zookeeper

[iyunv@mesos-slave~]# /application/zookeeper/bin/zkServer.sh start

部署mesos、marathon

mesos-master

下载mesosphere仓库

[iyunv@mesos-master~]# rpm -ivh http://repos.mesosphere.com/el/7 ... repo-7-1.noarch.rpm

安装mesos marathon

[iyunv@mesos-master~]# yum install -y mesos marathon

配置marathon使用mesos调用docker

[iyunv@mesos-master~]# echo 'docker,mesos' >/etc/mesos-slave/containerizers

启动mesos、marathon

[iyunv@mesos-master~]# systemctl enable mesos-master mesos-slave marathon

[iyunv@mesos-master~]# systemctl start mesos-master mesos-slave marathon

mesos-slave

下载mesosphere仓库

[iyunv@mesos-slave~]# rpm -ivh http://repos.mesosphere.com/el/7 ... repo-7-1.noarch.rpm

安装mesos

[iyunv@mesos-slave~]# yum install -y mesos

添加zookeeper配置

[iyunv@mesos-slave~]# vim /etc/mesos/zk

zk://192.168.56.7:2181,192.168.56.8:2181/mesos

配置marathon使用mesos调用docker

[iyunv@mesos-slave~]# echo 'docker,mesos' > /etc/mesos-slave/containerizers

启动mesos

[iyunv@mesos-slave~]# systemctl enable mesos-slave

[iyunv@mesos-slave ~]# systemctl startmesos-slave

检查mesos和marathon

在浏览器中输入http://192.168.56.7:5050看到如下图，表示mesos安装成功

在浏览器中输入http://192.168.56.7:8080看到如下图，表示marathon安装成功

使用marathon调度mesos创建docker容器

编辑json文件

[iyunv@mesos-master~]# vim nginx.json

{

  "id":"nginx",

  "cpus":0.1,

  "mem":10,

  "instances": 1,

  "constraints":[["hostname", "UNIQUE",""]],

  "container": {

    "type":"DOCKER",

    "docker": {

     "image": "nginx",

     "network": "BRIDGE",

     "portMappings": [

        {"containerPort": 80,"hostPort": 0,"servicePort": 0, "protocol":"tcp" }

      ]

    }

  }

}

调用json

[iyunv@mesos-master ~]# curl -X POSThttp://192.168.56.7:8080/v2/apps-d @nginx.json -H "Content-type:application/json"

查看mesos

查看marathon

使用docker查看

[iyunv@mesos-slave~]# docker ps

CONTAINERID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                            NAMES

5df80cefaee8        nginx               "nginx -g 'daemonoff"   6 minutes ago       Up 6 minutes        443/tcp, 0.0.0.0:31125->80/tcp  mesos-8a9358e1-275d-46ec-ba5c-e57e0578f354-S1.071c4b7a-55d0-41f6-9259-077373fb8e18