使用docker部署mongo集群
MongoDB 的 Docker 常用命令
Docker下，实战mongodb副本集（Replication）
# 下载镜像
docker pull mongo
# 创建并运行单节点实例
docker run -p 27017:27017 -v ~/code/Tools/mongo/data:/data/db --name mongodb -d mongo
- 基于
docker network创建局域网
# 查看已有network列表
docker network ls
# 移除已创建的网络
docker network rm mongo-network
# 初始化 Swarm
docker swarm init
docker swarm join-token manager
# 创建桥接网络，在网段 172.28.0.0/16 上创建网关为 172.28.5.254 、IP范围为 172.28.5.0/24 的桥接网络
docker network create \
--driver=bridge \
--subnet=172.28.0.0/16 \
--ip-range=172.28.5.0/24 \
--gateway=172.28.5.254 \
br0
# 查看网络详情
docker network inspect br0
- 创建并部署集群实例
# 创建主节点，并加入mongo-network网络，指定ip；并将mongo监听绑定到ip上
docker run --name m0 -p 27017:27017 \
--network br0 \
--ip 172.28.5.100 \
-v ~/code/Tools/mongo/data0:/data/db \
-d mongo /bin/bash -c 'mongod --replSet replset0 --bind_ip_all'
# 创建复制节点，并加入mongo-network网络，指定ip；并将mongo监听绑定到ip上;指定不同端口
docker run --name m1 -p 27018:27018 \
--network br0 \
--ip 172.28.5.101 \
-v ~/code/Tools/mongo/data1:/data/db \
-d mongo /bin/bash -c 'mongod --replSet replset0 --bind_ip_all --port 27018'
# 查看节点ip
docker exec m0 cat /etc/hosts
docker exec m1 cat /etc/hosts
# 配置集群
docker exec -it m0 bash
# 执行命令进行mongo控制台
mongo 172.28.5.100:27017
# 使用admin数据库
use admin
# 添加配置
config = { _id:"replset0", members:[{_id:0,host:"172.28.5.100:27017"},{_id:1,host:"172.28.5.101:27018"}]}
rs.initiate(config)
# 返回如下结果
{
"ok" : 1,
"operationTime" : Timestamp(1556158794, 1),
"$clusterTime" : {
"clusterTime" : Timestamp(1556158794, 1),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
}
}
# 进入副本节点
docker exec -it m1 mongo 172.28.5.101:27018
# 允许副本节点进行读操作
db.getMongo().setSlaveOk()
# 查看状态
rs.status()
最终结果
{
"set" : "replset0",
"date" : ISODate("2019-04-26T09:14:56.070Z"),
"myState" : 2,
"term" : NumberLong(3),
"syncingTo" : "172.28.5.101:27018",
"syncSourceHost" : "172.28.5.101:27018",
"syncSourceId" : 1,
"heartbeatIntervalMillis" : NumberLong(2000),
"optimes" : {
"lastCommittedOpTime" : {
"ts" : Timestamp(1556270095, 1),
"t" : NumberLong(3)
},
"readConcernMajorityOpTime" : {
"ts" : Timestamp(1556270095, 1),
"t" : NumberLong(3)
},
"appliedOpTime" : {
"ts" : Timestamp(1556270095, 1),
"t" : NumberLong(3)
},
"durableOpTime" : {
"ts" : Timestamp(1556270095, 1),
"t" : NumberLong(3)
}
},
"lastStableCheckpointTimestamp" : Timestamp(1556190289, 1),
"members" : [
{
"_id" : 0,
"name" : "172.28.5.100:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 68,
"optime" : {
"ts" : Timestamp(1556270095, 1),
"t" : NumberLong(3)
},
"optimeDate" : ISODate("2019-04-26T09:14:55Z"),
"syncingTo" : "172.28.5.101:27018",
"syncSourceHost" : "172.28.5.101:27018",
"syncSourceId" : 1,
"infoMessage" : "",
"configVersion" : 1,
"self" : true,
"lastHeartbeatMessage" : ""
},
{
"_id" : 1,
"name" : "172.28.5.101:27018",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 41,
"optime" : {
"ts" : Timestamp(1556270085, 1),
"t" : NumberLong(3)
},
"optimeDurable" : {
"ts" : Timestamp(1556270085, 1),
"t" : NumberLong(3)
},
"optimeDate" : ISODate("2019-04-26T09:14:45Z"),
"optimeDurableDate" : ISODate("2019-04-26T09:14:45Z"),
"lastHeartbeat" : ISODate("2019-04-26T09:14:55.413Z"),
"lastHeartbeatRecv" : ISODate("2019-04-26T09:14:54.927Z"),
"pingMs" : NumberLong(0),
"lastHeartbeatMessage" : "",
"syncingTo" : "",
"syncSourceHost" : "",
"syncSourceId" : -1,
"infoMessage" : "",
"electionTime" : Timestamp(1556270064, 1),
"electionDate" : ISODate("2019-04-26T09:14:24Z"),
"configVersion" : 1
}
],
"ok" : 1,
"operationTime" : Timestamp(1556270095, 1),
"$clusterTime" : {
"clusterTime" : Timestamp(1556270095, 1),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
}
}
docker外部访问
本地，非docker环境可使用 mongodb://localhost:27017 访问主节点，使用 mongodb://localhost:27018 访问复制节点