mesos+marathon管理docker集群

服务器架构

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

[[email protected]~]# yum install -y docker

[[email protected]~]# systemctl enable docker

[[email protected]~]# systemctl start docker

创建nginx镜像

[[email protected]~]# docker pull nginx

mesos-slave

安装docker

[[email protected]~]# yum install -y docker

[[email protected]~]# systemctl enable docker

[[email protected]~]# systemctl start docker

创建nginx镜像

[[email protected]~]# docker pull nginx

部署zookeeper

mesos-master

安装依赖

[[email protected]~]# yum install -y java-1.8.0-openjdk-devel java-1.8.0-openjdk

下载zookeeper

[[email protected]~]# mkdir /application

[email protected]~]# cd /application/

[[email protected]]# curl -O http://apache.fayea.com/zookeeper/stable/zookeeper-3.4.6.tar.gz

[[email protected]]# tar xf zookeeper-3.4.6.tar.gz

[[email protected]]# ln -s /application/zookeeper-3.4.6 /application/zookeeper

配置zookeeper

[[email protected]]# cd zookeeper/conf/

[[email protected]]# grep -v "#" zoo_sample.cfg >zoo.cfg

[[email protected]]# 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

[[email protected]]# mkdir ../data

[[email protected]]# echo 1 >../data/myid

[[email protected]]# cd

启动zookeeper

[[email protected]~]# /application/zookeeper/bin/zkServer.sh start

JMX enabled bydefault

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

Startingzookeeper ... STARTED

[[email protected]~]# /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

[[email protected]~]# yum install -y java-1.8.0-openjdk-devel java-1.8.0-openjdk

下载zookeeper

[[email protected]~]# mkdir /application

[[email protected]~]# cd /application/

[[email protected]]# curl -O http://apache.fayea.com/zookeeper/stable/zookeeper-3.4.6.tar.gz

[[email protected]]# tar xf zookeeper-3.4.6.tar.gz

[[email protected]]# ln -s /application/zookeeper-3.4.6 /application/zookeeper

配置zookeeper

[[email protected]]# cd zookeeper/conf/

[[email protected]]# grep -v "#" zoo_sample.cfg >zoo.cfg

[[email protected]]# 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

[[email protected]]# mkdir ../data

[[email protected]]# echo 2 >../data/myid

[[email protected]]# cd

启动zookeeper

[[email protected]~]# /application/zookeeper/bin/zkServer.sh start

部署mesos、marathon

mesos-master

下载mesosphere仓库

[[email protected]~]# rpm -ivh http://repos.mesosphere.com/el/7/noarch/RPMS/mesosphere-el-repo-7-1.noarch.rpm

安装mesos marathon

[[email protected]~]# yum install -y mesos marathon

配置marathon使用mesos调用docker

[[email protected]~]# echo ‘docker,mesos‘ >/etc/mesos-slave/containerizers

启动mesos、marathon

[[email protected]~]# systemctl enable mesos-master mesos-slave marathon

[[email protected]~]# systemctl start mesos-master mesos-slave marathon

mesos-slave

下载mesosphere仓库

[[email protected]~]# rpm -ivh http://repos.mesosphere.com/el/7/noarch/RPMS/mesosphere-el-repo-7-1.noarch.rpm

安装mesos

[[email protected]~]# yum install -y mesos

添加zookeeper配置

[[email protected]~]# 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

[[email protected]~]# echo ‘docker,mesos‘ > /etc/mesos-slave/containerizers

启动mesos

[[email protected]~]# systemctl enable mesos-slave

[[email protected] ~]# 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

[[email protected]~]# 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

[[email protected] ~]# 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

[[email protected]~]# 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