Docker -Создание контейнерной связи для микросервисов через Caddy v2 - PullRequest
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Docker -Создание контейнерной связи для микросервисов через Caddy v2

0 голосов
/ 30 января 2020

У меня есть следующая архитектура:

Docker с Linux -Контейнеры на Windows

  • A NodeJS микросервис называется регистр прослушивает внутри docker -сеть по порту 3100
  • a Caddy Образ контейнера из https://hub.docker.com/r/abiosoft/caddy/ для внутренней маршрутизации
  • a Пн go Изображение контейнера

docker -compose.yaml 

version: '3'
services:
  mongodb:
    build: ./data
    container_name: "mongodb"
    hostname: mongodb
    ports:
      - "27019:27017"
    logging:
      driver: none
  router:
    build:
      context: ./
      dockerfile: ./router/Dockerfile
    volumes:
      - ./router/etc/:/etc/
      - ./router/.config/:/.config/
      - ./router/home:/home/caddy/
    ports:
      - "3000:8080"
    cap_add:
      - CAP_NET_BIND_SERVICE
  register:
    build:
      context: ./
      dockerfile: ./development.docker
      args:
        SERVICE_NAME: register
    container_name: "register"
    environment:
      FLASK_ENV: development

CaddyFile . json

  "admin": {
    "listen": "0.0.0.0:2019"
  },
  "apps": {
    "http": {
      "servers": {
        "srv0": {
          "listen": ["0.0.0.0:8080"],
          "routes": [{
            "handle": [{
              "handler": "reverse_proxy",
              "transport": {
                "protocol": "http"
              },
              "upstreams": [
                {
                  "dial":"register:3100"
                }
              ]
            }],
            "match": [{
              "path": ["/register", "/register/*"]
            }],
            "terminal": true
          }, {
            "handle": [{
              "handler": "subroute",
              "routes": [{
                "handle": [{
                  "handler": "file_server",
                  "hide": ["/etc/caddy/Caddyfile"],
                  "root": "/home/caddy/web/" # index.html is shown when accessing localhost:3000
                }]
              }]
            }],
            "match": [{
              "path": ["/"]
            }],
            "terminal": true
          }]
        }
      }
    }
  }
}

Ожидаемое поведение

GET-запрос к localhost: 3000 показывает индекс. html -> работает

GET-запрос к локальному хосту: 3000 / регистр должен вернуть JSON -объект

Фактическое поведение

Я получаю следующую ошибку: 

router_1    | 2020/01/30 12:24:20.688   ERROR   http.log.error  dial tcp: lookup register on [::1]:53: dial udp [::1]:53: connect: cannot assign requested address     {"request": {"method": "GET", "uri": "/register/", "proto": "HTTP/1.1", "remote_addr": 
"172.18.0.1:43612", "host": "localhost:3000", "headers": {"Accept-Encoding": ["gzip, deflate, br"], "Connection": ["keep-alive"], "Content-Type": ["application/json"], "User-Agent": ["PostmanRuntime/7.22.0"], "Accept": ["*/*"], "Cache-Control": ["no-cache"], "Postman-Token": ["a7558f06-c099-4bbe-bee9-97c50a8910b8"]}}, "status": 502, "err_id": "5nm6udifm", "err_trace": "reverseproxy.(*Handler).ServeHTTP (reverseproxy.go:362)"}

Я перезагружал docker - составлял несколько раз, пытался изменить настройки DNS, и, как ни странно, это работало в редких случаях, но только один раз. Насколько я знаю, все контейнеры могут пинговать друг друга в сети, поэтому между ними должна быть какая-то связь. Как упоминалось ранее, я пытаюсь запустить эту сеть с Linux контейнерами на Windows машине. Я также попробовал это на нескольких Linux системах, и все работало просто отлично.

Я не уверен, что это проблема DNS или что-то еще?

У кого-нибудь есть идеи?

Заранее спасибо.

ОБНОВЛЕНИЕ

вот журналы 

mongodb     | WARNING: no logs are available with the 'none' log driver
router_1    | 2020/01/30 13:42:26.969   INFO    using provided configuration    {"config_file": "/etc/caddy/caddyfile.json", "config_adapter": "json5"}
router_1    | 2020/01/30 13:42:26.982   INFO    admin   admin endpoint started  {"address": "0.0.0.0:2019", "enforce_origin": false, "origins": ["0.0.0.0:2019"]}
router_1    | 2020/01/30 13:42:26.984   INFO    tls     cleaned up storage units
router_1    | 2020/01/30 13:42:26 [INFO][cache:0xc000324dc0] Started certificate maintenance routine
router_1    | 2020/01/30 13:42:27.099   INFO    autosaved config        {"file": "/.config/caddy/autosave.json"}
router_1    | 2020/01/30 13:42:27.099   INFO    serving initial configuration
register    |
register    | > register@0.0.1 start:linux /app/services/register
register    | > nodemon --watch src --ext ts --exec 'nest build && node ./dist/services/'$npm_package_name'/src/main'
register    |
register    | [nodemon] 2.0.2
register    | [nodemon] to restart at any time, enter `rs`
register    | [nodemon] watching dir(s): src/*/
register    | [nodemon] watching extensions: ts
register    | [nodemon] starting `nest build && node ./dist/services/register/src/main`
register    | (node:30) [DEP0091] DeprecationWarning: crypto.DEFAULT_ENCODING is deprecated.
register    | (node:30) [DEP0010] DeprecationWarning: crypto.createCredentials is deprecated. Use tls.createSecureContext instead.
register    | (node:30) [DEP0011] DeprecationWarning: crypto.Credentials is deprecated. Use tls.SecureContext instead.
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [NestFactory] Starting Nest application...
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [InstanceLoader] MongooseModule dependencies initialized +50ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [InstanceLoader] ConfigHostModule dependencies initialized +2ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [InstanceLoader] ConfigModule dependencies initialized +1ms
register    | (node:29) DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version. To use the
new parser, pass option { useNewUrlParser: true } to MongoClient.connect.
register    | (node:29) DeprecationWarning: current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [InstanceLoader] MongooseCoreModule dependencies initialized +48ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [InstanceLoader] MongooseModule dependencies initialized +3ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [InstanceLoader] AppModule dependencies initialized +2ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [NestMicroservice] Nest microservice successfully started +12ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [RoutesResolver] AppController {/register}: +33ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [RouterExplorer] Mapped {/create, POST} route +16ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [NestApplication] Nest application successfully started +16ms
register    | [Nest] 29   - 01/30/2020, 1:42:45 PM   [Main] REGISTRATION LISTENING 2
router_1    | 2020/01/30 13:43:08.235   ERROR   http.log.error  dial tcp: lookup register on [::1]:53: dial udp [::1]:53: connect: cannot assign requested address       {"request": {"method": "POST", "uri": "/register/create", "proto": "HTTP/1.1", "remote_addr": "172.20.0.1:53036", "host": "localhost:3000", "headers": {"Postman-Token": ["c3b7a4b1-d424-4fe0-8809-5d9fc38dd9dc"], "Accept-Encoding": ["gzip, deflate"], "Connection": ["keep-alive"], "Content-Type": ["application/json"], "Cache-Control": ["no-cache"], "User-Agent": ["PostmanRuntime/7.6.0"], "Accept": ["/"], "Content-Length": ["429"]}}, "status": 502, "err_id": "qx319czc0", "err_trace": "reverseproxy.(*Handler).ServeHTTP (reverseproxy.go:362)"}

К сожалению, с использованием depen_on в docker -compose.yaml не работает.

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