如何配置一个网络中的容器相互连接(服务器-> mysql)? [英] How to configure containers in one network to connect to each other (server -> mysql)?
问题描述
我在Windows上运行了ubuntu docker-containers(mysql)和(nodejs服务器应用程序)
I have ran ubuntu docker-containers (mysql) and (nodejs server app) on windows
docker run -d --network bridge --name自己-p 80:3000自己:最新
docker run -d --network bridge --name own -p 80:3000 own:latest
docker run -d --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD = 12345678 mysql:5
docker run -d --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=12345678 mysql:5
docker ps
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3ce966e43414 own:latest "docker-entrypoint.s…" 5 minutes ago Up 5 minutes 0.0.0.0:80->3000/tcp own
ed10cfc93dd5 mysql:5 "docker-entrypoint.s…" 20 minutes ago Up 20 minutes 0.0.0.0:3306->3306/tcp, 33060/tcp mysql
ni仅通过cmd(不是通过docker VM)使用服务器应用打开端口localhost:3000都很好,我看到成功连接到docker-container 0.0.0.0:3306,但是当我:
When i open port localhost:3000 with server app just via cmd (NOT via docker VM) all is good, I see success connection to the docker-container 0.0.0.0:3306, but when i:
docker start own
docker start own
检查浏览器0.0.0.0:80,我看到错误:连接ECONNREFUSED 127.0.0.1:3306
check browser 0.0.0.0:80 and i see Error: connect ECONNREFUSED 127.0.0.1:3306
docker network ls
docker network ls
NETWORK ID NAME DRIVER SCOPE
019f0886d253 bridge bridge local
fa1842bad14c host host local
85e7d1e38e14 none null local
docker inspect bridge
docker inspect bridge
[
{
"Name": "bridge",
"Id": "019f0886d253091c1367863e38a199fe9b539a72ddb7575b26f40d0d1b1f78dc",
"Created": "2019-11-19T09:15:53.2096944Z",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": null,
"Config": [
{
"Subnet": "172.17.0.0/16",
"Gateway": "172.17.0.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {
"a79ec12c4cc908326c54abc2b47f80ffa3da31c5e735bf5ff2755f23b9d562dd": {
"Name": "own",
"EndpointID": "2afc225e29138ff9f1da0f557e9f7659d3c4ccaeb5bfaa578df88a672dac003f",
"MacAddress": "02:42:ac:11:00:02",
"IPv4Address": "172.17.0.2/16",
"IPv6Address": ""
},
"ed10cfc93dd5eda7cfb8a26e5e4b2a8ccb4e9db7a4957b3d1048cb93f5137fd4": {
"Name": "mysql",
"EndpointID": "ea23d009f959d954269c0554cecf37d01f8fe71481965077f1372df27f05208a",
"MacAddress": "02:42:ac:11:00:03",
"IPv4Address": "172.17.0.3/16",
"IPv6Address": ""
}
},
"Options": {
"com.docker.network.bridge.default_bridge": "true",
"com.docker.network.bridge.enable_icc": "true",
"com.docker.network.bridge.enable_ip_masquerade": "true",
"com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
"com.docker.network.bridge.name": "docker0",
"com.docker.network.driver.mtu": "1500"
},
"Labels": {}
}
]
也许我可以将自己的容器分配给像mysql这样的桥接网络。在mysql容器的localhost之后会看到自己的容器吗?
maybe could i somehow assign the own container to the bridge network like mysql. After localhost of the mysql container will be seen for own container? Help please what should i do?
推荐答案
#create network mynetwork
docker network create --subnet 172.17.0.0/16 mynetwork
#create own container (without starting it)
docker create -d --name own -p 80:3000 own:latest
#add own container to the network mynetwork
docker network connect --ip 172.17.0.2 mynetwork own
#start container own
docker start own
#same as above but with different ip
docker create -d --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=12345678 mysql:5
docker network connect --ip 172.17.0.3 mynetwork mysql
docker start mysql
当您停止并卸下容器时,您可以这样删除网络:
when you stop and remove your containers do, you may remove network this way:
docker network rm mynetwork
或者,如果您不这样做,则无需如上所述再次创建它,而只需将新的/其他容器连接到它即可。
or if you don't do it then there is no need to create it again as above but just connect your new/other containers to it.
在您的应用程序中,应使用 172.17.0.3
作为MySQL地址。
In your application you should use 172.17.0.3
as the MySQL address.
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