每当启动 docker 容器服务时,我都会收到 failed to initialize
错误。
version: '3' services: app: container_name: api build: context: . dockerfile: local.dockerfile ports: - "9090:9090" - "40000:40000" security_opt: - "seccomp:unconfined" cap_add: - sys_ptrace restart: on-failure environment: port: 9090 db_conn: "postgres://admin:pass@db:5432/test?sslmode=disable" volumes: - .:/app depends_on: - db links: - db db: image: postgres container_name: db ports: - "5432:5432" environment: postgres_user: "admin" postgres_password: "pass" postgres_db: "test" tz: "utc" pgtz: "utc" volumes: - ./tmp:/var/lib/postgresql/data
我使用air
进行实时重新加载,请找到air.toml
文件
root="." tmp_dir="tmp" [build] cmd="go build -gcflags=\"all=-N -l\" -o ./bin/main ." bin="/app/bin" full_bin="/app/bin/main" log="air_errors.log" include_ext=["go", "yaml"] exclude_dir=["tmp"] delay=1000 [log] time=true [misc] clean_on_exit=true func main() { Instance, err = gorm.Open(postgres.Open(conn), &gorm.Config{ Logger: logger.New( log.New(os.Stdout, "", log.LstdFlags), logger.Config{ LogLevel: logger.Info, Colorful: true, }), }) if err != nil { panic("Cannot connect to DB" + err.Error()) } }
如果您再次保存代码并实时重新加载应用程序,则会建立连接
需要等待postgres
数据库初始化完成。
查看 https://docs。 docker.com/compose/compose-file/compose-file-v3/#healthcheck
为db
服务添加healthcheck
healthcheck: test: ["cmd-shell", "pg_isready"] interval: 10s timeout: 5s retries: 5
并更改 depend_on
如下
depends_on: db: condition: service_healthy
以上是初始化数据库失败,出现错误无法连接到`host=db user=database=`:拨号错误(拨号tcp xxxx:连接:连接被拒绝)的详细内容。更多信息请关注PHP中文网其他相关文章!