问题描述
环境信息服务器:
192.168.99.100 centos-node1
192.168.99.101 centos-node2
192.168.99.102 centos-node3
集群信息:
etc服务器: 192.168.99.100:2379
swarm manage: 192.168.99.101:2376
准备在所有的机器上安装dokcer
在centos-node1 上docker pull ystyle/etcd （和 quay.io/coreos/etcd:v2.2.5上的是一样的。）
在所有机器上dokcer pull swarm
安装etcd k-v数据库在centos-node1上执行:
export HOSTIP=192.168.99.100docker run -d -v /usr/share/ca-certificates/:/etc/ssl/certs -p 4001:4001 -p 2380:2380 -p 2379:2379 --name etcd ystyle/etcd -name etcd0 -advertise-client-urls http://${HOSTIP}:2379,http://${HOSTIP}:4001 -listen-client-urls http://0.0.0.0:2379,http://0.0.0.0:4001 -initial-advertise-peer-urls http://${HOSTIP}:2380 -listen-peer-urls http://0.0.0.0:2380 -initial-cluster-token etcd-cluster-1 -initial-cluster etcd0=http://${HOSTIP}:2380 -initial-cluster-state new
分别在三个节点执行： 加入集群
docker run -d swarm join --addr=192.168.99.100:2375 etcd://192.168.99.100:2379/swarmdocker run -d swarm join --addr=192.168.99.101:2375 etcd://192.168.99.100:2379/swarmdocker run -d swarm join --addr=192.168.99.102:2375 etcd://192.168.99.100:2379/swarm
在centos-node2上启动swarm manage
dokcer run -d -p 2376:2375 swarm manage -H=0.0.0.0:2375 etcd://192.168.99.101:2379/swarm
然后发现不管用集群执行什么命令都没反应， 没有报错，pull不成功， images 里也是空的。
docker info 信息也很奇怪：
#docker -H tcp://192.168.99.101:2376 infoContainers: 0 Running: 0 Paused: 0 Stopped: 0Images: 0Server Version: swarm/1.1.3Role: primaryStrategy: spreadFilters: health, port, dependency, affinity, constraintNodes: 2 (unknown): 192.168.99.102:2375 └ Status: Pending └ Containers: 0 └ Reserved CPUs: 0 / 0 └ Reserved Memory: 0 B / 0 B └ Labels: └ Error: (none) └ UpdatedAt: 2016-03-16T14:14:30Z (unknown): 192.168.99.101:2375 └ Status: Pending └ Containers: 0 └ Reserved CPUs: 0 / 0 └ Reserved Memory: 0 B / 0 B └ Labels: └ Error: (none) └ UpdatedAt: 2016-03-16T14:14:30ZPlugins: Volume: Network: Kernel Version: 3.10.0-327.10.1.el7.x86_64Operating System: linuxArchitecture: amd64CPUs: 0Total Memory: 0 BName: add02820f24f
swarm 节点只能看到两个
#docker run --rm swarm list etcd://192.168.99.100:2379/swarmtime='2016-03-16T14:19:41Z' level=info msg='Initializing discovery without TLS' 192.168.99.101:2375192.168.99.102:2375
这是怎么怎么回事？ 还是我有步骤没做或漏了？
问题解答
回答1：已解决，主要是端口的问题，防火墙里开放端口就行了，还有就是docker id重复问题直接删掉/etc/docker/key.json文件，重启docker就行了具体搭建过程请看
