docker compose 后立即关闭 Postgres？
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【中文标题】docker compose 后立即关闭 Postgres？【英文标题】：Postgres Shutdown Immediately after docker compose up? 【发布时间】：2017-09-26 17:13:24 【问题描述】：我在这里使用postgresql image 和node official image 和
我的docker-compose.yml 文件看起来像
version: '2'
services:
postgres:
restart: always
image: sameersbn/postgresql:9.6-2
ports:
- "5432:5432"
environment:
- DB_USER=shorturl
- DB_PASS=shorturl
- DB_NAME=shorturl
web:
build: .
ports:
- "4000:4000"
volumes:
- .:/shortlr
depends_on:
- postgres
command: ["./wait-for-it.sh","postgres:5432", "--", "npm", "start"]
当我运行 docker-compose up 时，我的日志看起来像
shubham@shuboy2014:~/shortlr$ docker-compose up
Recreating shortlr_postgres_1 ...
Recreating shortlr_postgres_1 ... done
Recreating shortlr_web_1 ...
Recreating shortlr_web_1 ... done
Attaching to shortlr_postgres_1, shortlr_web_1
postgres_1 | Initializing datadir...
web_1 | wait-for-it.sh: waiting 15 seconds for postgres:5432
postgres_1 | Initializing certdir...
postgres_1 | Initializing logdir...
postgres_1 | Initializing rundir...
postgres_1 | Setting resolv.conf ACLs...
postgres_1 | Creating database user: shorturl
postgres_1 | Creating database: shorturl...
postgres_1 | ‣ Granting access to shorturl user...
postgres_1 | Starting PostgreSQL 9.6...
postgres_1 | LOG: database system was shut down at 2017-04-28 14:23:20 UTC
postgres_1 | LOG: MultiXact member wraparound protections are now enabled
postgres_1 | LOG: autovacuum launcher started
postgres_1 | LOG: database system is ready to accept connections
postgres_1 | LOG: incomplete startup packet
web_1 | wait-for-it.sh: postgres:5432 is available after 2 seconds
web_1 | npm info it worked if it ends with ok
web_1 | npm info using npm@4.2.0
web_1 | npm info using node@v7.9.0
web_1 | npm info lifecycle shortlr@0.0.5~prestart: shortlr@0.0.5
web_1 | npm info lifecycle shortlr@0.0.5~start: shortlr@0.0.5
web_1 |
web_1 | > shortlr@0.0.5 start /shortlr
web_1 | > node server.js
web_1 |
web_1 | Listening on http://localhost:4000/
web_1 | Unhandled rejection SequelizeBaseError: connect ECONNREFUSED 127.0.0.1:5432
web_1 | at /shortlr/node_modules/sequelize/lib/dialects/postgres/connection-manager.js:98:20
web_1 | at Connection.<anonymous> (/shortlr/node_modules/pg/lib/client.js:186:5)
web_1 | at emitOne (events.js:96:13)
web_1 | at Connection.emit (events.js:191:7)
web_1 | at Socket.<anonymous> (/shortlr/node_modules/pg/lib/connection.js:86:10)
web_1 | at emitOne (events.js:96:13)
web_1 | at Socket.emit (events.js:191:7)
web_1 | at emitErrorNT (net.js:1283:8)
web_1 | at _combinedTickCallback (internal/process/next_tick.js:80:11)
web_1 | at process._tickCallback (internal/process/next_tick.js:104:9)
当我运行docker-compose up 时，postgresql 立即关闭，任何有用的答案将不胜感激。
shubham@shuboy2014:~/shortlr$ docker-compose ps
Name Command State Ports
------------------------------------------------------------------------------------
shortlr_postgres_1 /sbin/entrypoint.sh Up 0.0.0.0:5432->5432/tcp
shortlr_web_1 ./wait-for-it.sh postgres: ... Up 0.0.0.0:4000->4000/tcp
【问题讨论】：
***.com/q/37259584/905902 @wildplasser 我的问题没有解决 你没有在这里链接任何东西。首先在您的网络应用程序中添加一个链接部分。然后在您的网络应用程序中使用该链接。 Web 容器的 localhost 接口上没有 db。 Pgsql 已启动，只是不在您在节点应用程序中指定的位置。链接容器后，您的数据库位置将类似于 postgres:5432 而不是 localhost。 【参考方案1】：在你的 web 和 postgres 图像之间添加一个链接，如下所示：
version: '2'
services:
postgres:
restart: always
image: sameersbn/postgresql:9.6-2
ports:
- "5432:5432"
environment:
- DB_USER=shorturl
- DB_PASS=shorturl
- DB_NAME=shorturl
web:
build: .
ports:
- "4000:4000"
volumes:
- .:/shortlr
depends_on:
- postgres
links:
- postgres
command: ["./wait-for-it.sh","postgres:5432", "--", "npm", "start"]
尽管您应该改用网络，因为链接是一个旧选项。阅读网络上的文档here
【讨论】：
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