1.2 总体架构

[root@docker-slave ~]# cat /etc/redhat-release 
CentOS Linux release 7.1.1503 (Core) 
[root@docker-slave ~]# uname -r
3.10.0-229.4.2.el7.x86_64
[root@docker-slave ~]# uname -m
x86_64
[root@docker-slave ~]# uname -a
Linux docker-slave 3.10.0-229.4.2.el7.x86_64 #1 SMP Wed May 13 10:06:09 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[root@docker-slave ~]# cat /etc/sysconfig/network
HOSTNAME=docker-slave
[root@docker-slave ~]# ping docker-salve
ping: unknown host docker-salve
[root@docker-slave ~]# ping docker-slave
PING docker-slave (192.168.100.6) 56(84) bytes of data.
64 bytes from docker-slave (192.168.100.6): icmp_seq=1 ttl=64 time=0.058 ms

5.2 部署Zookeeper

[root@docker-slave ~]# yum install -y java
[root@docker-slave ~]# cd /usr/local/src/
[root@docker-slave src]# wget https://www.apache.org/dist/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz
[root@docker-slave src]# tar zxf zookeeper-3.4.6.tar.gz
[root@docker-slave src]# mv zookeeper-3.4.6 /usr/local/
[root@docker-slave src]# ln -s /usr/local/zookeeper-3.4.6/ /usr/local/zookeeper

[root@docker-slave src]# cd /usr/local/zookeeper/conf/
[root@docker-slave conf]# cp zoo_sample.cfg zoo.cfg
[root@docker-slave conf]# grep '^[a-z]' zoo.cfg 
tickTime=2000
#Zookeeper 服务器之间或客户端与服务器之间维持心跳的时间间隔，也就是每个 tickTime 时间就会发送一个心跳。
initLimit=10
#Zookeeper的Leader 接受客户端（Follower）初始化连接时最长能忍受多少个心跳时间间隔数。当已经超过 5个心跳的时间（也就是tickTime）长度后 Zookeeper 服务器还没有收到客户端的返回信息，那么表明这个客户端连接失败。总的时间长度就是 5*2000=10 秒
syncLimit=5
#表示 Leader 与 Follower 之间发送消息时请求和应答时间长度，最长不能超过多少个tickTime 的时间长度，总的时间长度就是 2*2000=4 秒
dataDir=/data/zk1
#数据存放目录
clientPort=2181
#客户端连接端口
#A 是一个数字，表示这个是第几号服务器；
#B 是这个服务器的 ip 地址；
#C 表示的是这个服务器与集群中的 Leader 服务器交换信息的端口；
#D 表示的是万一集群中的 Leader 服务器挂了，需要一个端口来重新进行选举，选出一个新的 Leader，而这个端口就是用来执行选举时服务器相互通信的端口。
server.1=192.168.100.6:3181:4181
server.2=192.168.100.6:3182:4182
server.3=192.168.100.6:3183:4183
# 配置文件最终配置
[root@docker-slave conf]# grep '^[a-z]' zoo.cfg 
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/data/zk1
clientPort=2181
server.1=192.168.100.6:3181:4181
server.2=192.168.100.6:3182:4182
server.3=192.168.100.6:3183:4183

[root@docker-slave conf]# mkdir -p /data/zk1 /data/zk2 /data/zk3
[root@docker-slave conf]# echo "1" >/data/zk1/myid
[root@docker-slave conf]# echo "2" >/data/zk2/myid
[root@docker-slave conf]# echo "3" >/data/zk3/myid

[root@docker-slave conf]# cp zoo.cfg zk1.cfg
[root@docker-slave conf]# cp zoo.cfg zk2.cfg
[root@docker-slave conf]# cp zoo.cfg zk3.cfg

[root@docker-slave conf]# sed -i 's/zk1/zk2/g' zk2.cfg
[root@docker-slave conf]# sed -i 's/zk1/zk3/g' zk3.cfg
[root@docker-slave conf]# sed -i 's/2181/2182/g' zk2.cfg
[root@docker-slave conf]# sed -i 's/2181/2183/g' zk3.cfg

[root@docker-slave conf]# /usr/local/zookeeper/bin/zkServer.sh start /usr/local/zookeeper/conf/zk1.cfg
JMX enabled by default
Using config: /usr/local/zookeeper/conf/zk1.cfg
Starting zookeeper ... STARTED
[root@docker-slave conf]# /usr/local/zookeeper/bin/zkServer.sh start /usr/local/zookeeper/conf/zk2.cfg
JMX enabled by default
Using config: /usr/local/zookeeper/conf/zk2.cfg
Starting zookeeper ... STARTED
[root@docker-slave conf]# /usr/local/zookeeper/bin/zkServer.sh start /usr/local/zookeeper/conf/zk3.cfg
JMX enabled by default
Using config: /usr/local/zookeeper/conf/zk3.cfg
Starting zookeeper ... STARTED
[root@docker-slave conf]# /usr/local/zookeeper/bin/zkServer.sh status /usr/local/zookeeper/conf/zk1.cfg
JMX enabled by default
Using config: /usr/local/zookeeper/conf/zk1.cfg
Mode: follower
[root@docker-slave conf]# /usr/local/zookeeper/bin/zkServer.sh status /usr/local/zookeeper/conf/zk2.cfg
JMX enabled by default
Using config: /usr/local/zookeeper/conf/zk2.cfg
Mode: leader
[root@docker-slave conf]# /usr/local/zookeeper/bin/zkServer.sh status /usr/local/zookeeper/conf/zk3.cfg
JMX enabled by default
Using config: /usr/local/zookeeper/conf/zk3.cfg
Mode: follower

[root@docker-master ~]# rpm -ivh http://repos.mesosphere.com/el/7/noarch/RPMS/mesosphere-el-repo-7-1.noarch.rpm
[root@docker-slave conf]# rpm -ivh http://repos.mesosphere.com/el/7/noarch/RPMS/mesosphere-el-repo-7-1.noarch.rpm

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

[root@docker-master ~]# cat /etc/mesos/zk 
zk://192.168.100.6:2181,192.168.100.6:2182,192.168.100.6:2183/mesos

[root@docker-master ~]# systemctl enable mesos-master mesos-slave
[root@docker-master ~]# systemctl start mesos-master mesos-slave
[root@docker-master ~]# systemctl enable marathon
[root@docker-master ~]# systemctl start marathon

[root@docker-slave conf]# yum -y install mesos

[root@docker-master ~]# MASTER=$(mesos-resolve `cat /etc/mesos/zk`)
[root@docker-master ~]# mesos-execute --master=$MASTER --name="cluster-test" --command="sleep 60"

[root@docker-slave ~]# yum install -y docker
[root@docker-master ~]# systemctl enable docker
[root@docker-master ~]# systemctl start docker
[root@docker-master ~]# docker pull nginx

[root@docker-master ~]# cat nginx.json
{
  "id":"nginx",
  "cpus":0.2,
  "mem":20.0,
 "instances": 1,
 "constraints": [["hostname", "UNIQUE",""]],
 "container": {
    "type":"DOCKER",
   "docker": {
     "image": "nginx",
     "network": "BRIDGE",
     "portMappings": [
        {"containerPort": 80, "hostPort": 0,"servicePort": 0, "protocol": "tcp" }
      ]
    }
  }
}

[root@docker-master ~]# curl -X POST http://192.168.100.5:8080/v2/apps -d @/root/nginx.json -H "Content-type: application/json"
{"id":"/nginx","cmd":null,"args":null,"user":null,"env":{},"instances":1,"cpus":0.2,"mem":20,"disk":0,"executor":"","constraints":[["hostname","UNIQUE",""]],"uris":[],"fetch":[],"storeUrls":[],"ports":[0],"requirePorts":false,"backoffSeconds":1,"backoffFactor":1.15,"maxLaunchDelaySeconds":3600,"container":{"type":"DOCKER","volumes":[],"docker":{"image":"nginx","network":"BRIDGE","portMappings":[{"containerPort":80,"hostPort":0,"servicePort":0,"protocol":"tcp"}],"privileged":false,"parameters":[],"forcePullImage":false}},"healthChecks":[],"dependencies":[],"upgradeStrategy":{"minimumHealthCapacity":1,"maximumOverCapacity":1},"labels":{},"acceptedResourceRoles":null,"ipAddress":null,"version":"2016-03-01T07:19:44.339Z","tasksStaged":0,"tasksRunning":0,"tasksHealthy":0,"tasksUnhealthy":0,"deployments":[{"id":"502712f0-dc3a-44f8-a9cf-0dfa7407ec94"}],"tasks":[]}

[root@docker-master ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS              PORTS                            NAMES
2e333092a383        nginx               "nginx -g 'daemon off"   About a minute ago   Up About a minute   443/tcp, 0.0.0.0:31705->80/tcp   mesos-46abb5e7-3775-4383-b953-c5b2b9ae5c9f-S0.00229c83-5505-400d-984f-4849e9850b71