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试用swarmkit

准备工作:
1.准备三台机器,配置如下:

机器名                            系统                        IP
 swarmkit-manager           ubuntu 14.04                192.168.65.133
 swarmkit-node1             ubuntu 14.04                192.168.65.134
 swarmkit-node1             ubuntu 14.04                192.168.65.135

2.安装git,make

apt-get install git
 apt-get install make

3.安装golang

wget https://storage.googleapis.com/golang/go1.6.linux-amd64.tar.gz
 sudo tar -xzf go1.6.linux-amd64.tar.gz -C /usr/local

4.修改/etc/profile,在最后加入如下内容

export GOROOT=/usr/local/go
 export GOPATH=$HOME/go
 export GOBIN=/usr/local/go/bin
 export PATH=$PATH:$GOBIN

5.下载swarmkit项目

go get github.com/docker/swarmkit/...
 go get -d github.com/docker/swarmkit/...

执行以上两句可以避免安装出现 $GOPATH/src/github.com/docker/swarmkit.
6.执行成功后,你会找到当前系统目录下面有

cd /root/go/src/github.com/docker/swarmkit

目录
7.执行make binaries
执行成功后可以在 /root/go/src/github.com/docker/swarmkit/bin 目录下面找到以下文件

protoc-gen-gogoswarm  swarm-bench  swarmctl  swarmd
 拷贝命令到/usr/bin/以便快速启动
 cp protoc-gen-gogoswarm  swarm-bench  swarmctl  swarmd /usr/bin/

8.启动manager(192.168.65.133)

swarmd -d /tmp/node-1 --listen-control-api /tmp/manager1/swarm.sock --hostname node-1

9.设置node节点(192.168.65.134,192.168.65.135)

swarmd -d /tmp/node-2 --hostname node-2 --join-addr 192.168.65.133:4242
 swarmd -d /tmp/node-3 --hostname node-3 --join-addr 192.168.65.133:4242

10.验证集群(在manager节点操作下面命令)

$  export SWARM_SOCKET=/tmp/manager1/swarm.sock
 $  swarmctl node ls
 ID                         Name      Status  Availability    Manager status
 87pn3pug404xs4x86b5nwlwbr  node-1    READY   ACTIVE          REACHABLE *
 by2ihzjyg9m674j3cjdit3reo  node-2    READY   ACTIVE
 87pn3pug404xs4x86b5nwlwbr  node-3    READY   ACTIVE

11.创建服务

swarmctl service create --name mysql --image 192.168.65.133:5000/mysql-5.5:v1

12.查看服务列表

$  swarmctl service ls
 ID                         Name   Image                             Instances
 --                         ----   -----                             ---------
 89831rq7oplzp6oqcqoswquf2  mysql  192.168.65.133:5000/mysql-5.5:v1  1

13.查看服务信息

$ swarmctl service inspect mysql
 ID                : 89831rq7oplzp6oqcqoswquf2
 Name              : mysql
 Instances         : 1
 Template
 Container
 Image           : 192.168.65.133:5000/mysql-5.5:v1
 Task ID                      Service    Instance    Image          Desired State    Last State               Node
 -------                      -------    --------    -----          -------------    ----------               ----
 0dsiq9za9at3cqk4qx07n6v8j    mysql      1           192.168.65.133:5000/mysql-5.5:v1    RUNNING          RUNNING 2 seconds ago    node-1

14.更改实例数

$ swarmctl service update mysql --instances 6
 89831rq7oplzp6oqcqoswquf2
 $ swarmctl service inspect mysql
 ID                : 89831rq7oplzp6oqcqoswquf2
 Name              : mysql
 Instances         : 6
 Template
 Container
 Image           : 192.168.65.133:5000/mysql-5.5:v1
 Task ID                      Service    Instance    Image          Desired State    Last State               Node
 -------                      -------    --------    -----          -------------    ----------               ----
 0dsiq9za9at3cqk4qx07n6v8j    mysql      1           192.168.65.133:5000/mysql-5.5:v1    RUNNING          RUNNING 1 minute ago     node-1
 9fvobwddp5ve3k0f4al1mhuhn    mysql      2           192.168.65.133:5000/mysql-5.5:v1    RUNNING          RUNNING 3 seconds ago    node-2
 e7pxax9mhjd4zamohobefqpy0    mysql      3           192.168.65.133:5000/mysql-5.5:v1    RUNNING          RUNNING 3 seconds ago    node-2
 ceuwhcffcavur7k9q57vqw0zg    mysql      4           192.168.65.133:5000/mysql-5.5:v1    RUNNING          RUNNING 3 seconds ago    node-1
 8vqmbo95l6obbtb7fpmvz522f    mysql      5           192.168.65.133:5000/mysql-5.5:v1    RUNNING          RUNNING 3 seconds ago    node-3
 385utv15nalm2pyupao6jtu12    mysql      6           192.168.65.133:5000/mysql-5.5:v1    RUNNING          RUNNING 3 seconds ago    node-3