{"id":207348,"date":"2025-07-08T10:50:13","date_gmt":"2025-07-08T02:50:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207348\/"},"modified":"2025-07-08T10:50:13","modified_gmt":"2025-07-08T02:50:13","slug":"%e8%bf%9e%e6%8e%a5%e5%88%b0-postgres-%e6%97%b6-golang-docker-%e9%94%99%e8%af%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207348\/","title":{"rendered":"\u8fde\u63a5\u5230 postgres \u65f6 Golang docker \u9519\u8bef"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u8fde\u63a5\u5230 postgres \u65f6 Golang docker \u9519\u8bef<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-21 21:06:39<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u600e\u4e48\u5165\u95e8Golang\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u8fde\u63a5\u5230 postgres \u65f6 Golang docker \u9519\u8bef\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6b63\u5728\u5c1d\u8bd5\u4f7f\u7528 docker-compose.yml \u6587\u4ef6\u5bf9\u6211\u7684 golang rest api \u8fdb\u884c dockerize\u3002<\/strong><\/p>\n

\u5047\u8bbe\u76ee\u524d\u6211\u6ca1\u6709\u4efb\u4f55 docker \u955c\u50cf\u3002\u6211\u53ea\u662f<\/p>\n

\u8fd0\u884c docker-compose up -d <\/p>\n

\u5b83\u4f1a\u81ea\u52a8\u521b\u5efa 2 \u4e2a docker \u955c\u50cf\uff0c\u5176\u4e2d 1 \u4e2a\u662f\u6570\u636e\u5e93\u955c\u50cf\uff0c1 \u4e2a\u662f\u4ee3\u7801\u955c\u50cf\u3002<\/p>\n

\u4f46\u662f\u5f53\u6211\u901a\u8fc7\u8fd0\u884c\u547d\u4ee4\u770b\u5230\u65e5\u5fd7\u65f6<\/p>\n

docker-compose \u65e5\u5fd7 <\/p>\n

\u6211\u5f97\u5230\u8fd9\u4e9b\u65e5\u5fd7<\/p>\n

attaching to posty-api_api_1, postgres\npostgres    | \npostgres    | postgresql database directory appears to contain a database; skipping initialization\npostgres    |\npostgres    | 2021-06-14 07:37:46.437 utc [1] log:  starting postgresql 13.3 on x86_64-pc-linux-musl, compiled by gcc (alpine 10.2.1_pre1) 10.2.1 20201203, 64-bit\npostgres    | 2021-06-14 07:37:46.438 utc [1] log:  listening on ipv4 address \"0.0.0.0\", port 5432\npostgres    | 2021-06-14 07:37:46.438 utc [1] log:  listening on ipv6 address \"::\", port 5432\npostgres    | 2021-06-14 07:37:46.481 utc [1] log:  listening on unix socket \"\/var\/run\/postgresql\/.s.pgsql.5432\"\npostgres    | 2021-06-14 07:37:46.607 utc [22] log:  database system was shut down at 2021-06-14 07:33:40 utc\npostgres    | 2021-06-14 07:37:46.696 utc [1] log:  database system is ready to accept connections\napi_1       | main.go start\napi_1       | database.go start\napi_1       |\napi_1       | 2021\/06\/14 07:37:45 \/app\/database\/database.go:23\napi_1       | [error] failed to initialize database, got error failed to connect to `host=postgres user=postgres database=postgres`: dial error (dial tcp 172.22.0.2:5432: connect: connection refused)\napi_1       | panic: failed to connect database\napi_1       |\napi_1       | goroutine 1 [running]:\napi_1       | github.com\/usman-174\/database.connectdatabase(0xc0001ae2f0)\napi_1       |   \/app\/database\/database.go:26 +0x49a\napi_1       | github.com\/usman-174\/app.router(0xa7c120)\napi_1       |   \/app\/app\/app.go:10 +0x26\napi_1       | main.main()\napi_1       |   \/app\/main.go:16 +0x9b<\/pre>\n
\u6211\u65e0\u6cd5\u8fde\u63a5\u6570\u636e\u5e93\u3002\u5373\u4f7f\u6211\u63d0\u4f9b\u4e86\u6b63\u786e\u7684\u73af\u5883\u53d8\u91cf\u3002<\/p>\n
\u8fd9\u662f\u6211\u7684 .env \u6587\u4ef6\uff1a<\/p>\n
dsn=host=postgres user=postgres password=postgres dbname=postgres port=5432 sslmode=disable\nclient_url=https:\/\/clever-montalcini-cedd07.netlify.app\/\nport=:8080<\/pre>\n
\u8fd9\u662f\u6211\u7684 dockerfile\uff1a<\/p>\n
from golang:1.16.5-alpine3.13 as builder\nworkdir \/app\ncopy . .\nrun go build -o main main.go\n\n# run stage\nfrom alpine:3.13\nworkdir \/app\ncopy --from=builder \/app\/main .\ncopy .env .\nexpose 8080<\/pre>\n
\u8fd9\u662f\u6211\u7684 docker-compose.yml \u6587\u4ef6\uff1a<\/p>\n
# specify the version for docker-compose.yml\nversion: \"3.8\"\n\n# add the serivces needed (postgres,go)\nservices:\n  postgres:\n    container_name: postgres\n    image: postgres:13-alpine\n    environment:\n      postgres_user: postgres\n      postgres_password: postgres\n      postgres_db: auth\n      # optional: give a name to the database, otherwise\n      # use the default value postgres_user as a database name (user in this case.)\n      postgres_db: auth\n    healthcheck:\n      test: [\"cmd-shell\", \"pg_isready -u postgres\"]\n      interval: 10s\n      timeout: 5s\n      retries: 5\n    ports:\n      - \"5432:5432\"\n    volumes:\n      - .\/pgdata:\/var\/lib\/postgresql\/data\n\n  api:\n    build:\n      context: .\n      dockerfile: dockerfile\n    command: [\".\/wait-for-it.sh\", \"postgres:5432\", \"--\", \"\/app\/main\" ]\n    ports:\n      - \"8080:8080\"\n    depends_on:\n      - postgres\n    command: [ \"\/app\/main\" ]<\/pre>\n
\u8fd9\u5c31\u662f\u6211\u8fde\u63a5\u5230\u6570\u636e\u5e93\u7684\u65b9\u5f0f\uff1a<\/p>\n
func ConnectDataBase() *gorm.DB {\nfmt.Println(\"database.go START\")\nerr := godotenv.Load()\n\nif err != nil {\n    log.Fatal(\"Error loading .env file\")\n}\ndsn := os.Getenv(\"DSN\")\ndb, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})\n\nif err != nil {\n    panic(\"failed to connect database\")\n}\ndb.AutoMigrate(&models.User{})\ndb.AutoMigrate(&models.Post{})\ndb.AutoMigrate(&models.Like{})\nfmt.Println(\"database.go STOP\")\n\nreturn db\n}<\/pre>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
dsn<\/code> \u4e0a\u7684\u6570\u636e\u5e93\u540d\u79f0\u4f3c\u4e4e\u4e0d\u6b63\u786e\u3002<\/p>\n
\u5728\u4f60\u7684 docker-compose.yml<\/code> \u4e0a\u5b83\u662f\uff1a<\/p>\n
postgres_user: postgres\npostgres_password: postgres\npostgres_db: auth\n...\n<\/pre>\n
\u540c\u65f6\uff0c\u5728\u60a8\u7684 .env<\/code> \u4e0a\u5b83\u662f\uff1a<\/p>\n
DSN=host=postgres user=postgres password=postgres dbname=postgres ...<\/pre>\n
\u5c1d\u8bd5\u5728 .env<\/code> \u6587\u4ef6\u4e0a\u4f7f\u7528 dbname=auth<\/code> \u800c\u4e0d\u662f dbname=postgres<\/code><\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u8fde\u63a5\u5230 postgres \u65f6 Golang docker \u9519\u8bef\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207348","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207348"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207348\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}