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我正在写一个在2个容器中dockerized的去应用程序:db和app。无法连接到码头集装箱内的postgresql
同时启动集装箱的码头工人,组成了“我看到消息:拨号TCP:上127.0.0.11:53查找dbpgsql:没有这样的主机
DB_ENV_DB=cldb
DB_ENV_USER=cldb
DB_ENV_PASS=cldb
DB_PORT_5432_TCP_ADDR=dbpgsql
DB_PORT_5432_TCP_PORT=5432
这里是我的码头工人,compose.yml
version: '2'
services:
server:
hostname: app
image: golang:1.7.3-alpine
build: ./server/
privileged: true
container_name: server
command: go run server.go
volumes:
- ../src/:/go/src/
- ../server.go:/go/server.go
links:
- db:db
ports:
- '8080:8080'
env_file: environment
db:
hostname: dbpgsql
image: postgres:latest
container_name: db
environment:
POSTGRES_USER: cldb
POSTGRES_PASSWORD: cldb
POSTGRES_DB: cldb
ports:
- '5432:5432'
volumes:
- ./data:/docker-entrypoint-initdb.d
该应用这里失败时执行DB.Ping():
func InitDB(dataSourceName string) {
var err error
DB, err = sql.Open("postgres", dataSourceName)
if err != nil {
log.Panic(err)
}
if err = DB.Ping(); err != nil {
log.Panic(err)
}
DB.SetMaxIdleConns(100)
}
您是否需要将端口53映射到泊坞窗图像中? –