All the APIs showing Offline while working on docker containers

I have been working on this project for a while and started to deploy on docker containers, but having some issue while doing so, I hope you can give me some ideas about the problem. Docker compose build fine but does not render the pages as it should be. Following are my docker files setup :-

Formerly i have tried to apply docker file to all the projects but after having this problem I tried to start from a project rather than whole therefore, I have tried to recreate/reproduce the problem with a customer management project:-

Docker file CustomerManagement API

FROM mcr.microsoft.com/dotnet/core/aspnet:2.2 AS base
WORKDIR /app
EXPOSE 80

FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build
WORKDIR /src
COPY ["src/CustomerManagement/CustomerAPI/CustomerAPI.csproj", "src/CustomerManagement/CustomerAPI/"]

COPY . .
WORKDIR "/src/src/CustomerManagement/CustomerAPI"
RUN dotnet build "CustomerAPI.csproj" -c Release -o /app
RUN dotnet restore -s https://api.nuget.org/v3/index.json -s https://www.myget.org/F/autoweb/api/v3/index.json


FROM build AS publish
RUN dotnet publish "CustomerAPI.csproj" -c Release -o /app

HEALTHCHECK --interval= --timeout= --retries=1 CMD curl --silient --fail http://localhost:5000/hc || exit 1

FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "CustomerAPI.dll"]

Launch settings.json

{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:5000",
      "sslPort": 0
    }
  },
  "profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "launchUrl": "index.html",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "CustomerAPI": {
      "commandName": "Project",
      "launchBrowser": true,
      "launchUrl": "index.html",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      },
      "applicationUrl": "http://localhost:5000"
    }
  }
}

Docker file Web:-

FROM mcr.microsoft.com/dotnet/core/aspnet:2.2 AS base
WORKDIR /app
EXPOSE 80

FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build
WORKDIR /src
COPY ["src/WebManagement/Web/Web.csproj", "src/WebManagement/Web/"]

COPY . .
WORKDIR "/src/src/WebManagement/Web"
RUN dotnet build "Web.csproj" -c Release -o /app
RUN dotnet restore -s https://api.nuget.org/v3/index.json -s https://www.myget.org/F/autoweb/api/v3/index.json


FROM build AS publish
RUN dotnet publish "Web.csproj" -c Release -o /app

HEALTHCHECK --interval=30s --timeout=3s --retries=1 CMD curl --silent --fail http://localhost:7000/hc || exit 1


FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "Web.dll"]

Launch settings.json

{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:7000",
      "sslPort": 0
    }
  },
  "profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "launchUrl": "http://localhost:7000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "Web": {
      "commandName": "Project",
      "launchBrowser": true,
      "launchUrl": "http://localhost:7000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      },
      "applicationUrl": "http://localhost:7000"
    }
  }
}

Docker compose.yml file

version: '3.4'

services:

  logserver:
    image: datalust/seq:latest

  sqlserver:
    image: mcr.microsoft.com/mssql/server:2017-latest

  rabbitmq:
    image: rabbitmq:3-management-alpine

  customerapi:
    image: ${DOCKER_REGISTRY-}customerapi
    build:
      context: .
      dockerfile: src/CustomerManagement/CustomerAPI/Dockerfile
    depends_on:
      - sqlserver
      - rabbitmq

  web:
    image: ${DOCKER_REGISTRY-}web
    build:
      context: .
      dockerfile: src/WebManagement/Web/Dockerfile
    depends_on:
      - customerapi

docker-compose.override.yml file

version: '3.4'

services:
  logserver:
    container_name: logserver
    ports:
      - "5341:80"
    environment:
      - ACCEPT_EULA
      
  sqlserver:
    container_name: sqlserver
    ports:
      - "5433:1433"
    volumes:
      - sqlserverdata:/var/opt/mssql
    environment:
      - ACCEPT_EULA=Y
      - MSSQL_PID=Developer
      - SA_PASSWORD=Pass@word

  rabbitmq:
    container_name: rabbitmq
    ports:
      - "15672:15672"
      - "5672:5672"
    volumes:
      - rabbitmqdata:/var/lib/rabbitmq    
    environment:
      - RABBITMQ_DEFAULT_USER=rabbitmquser
      - RABBITMQ_DEFAULT_PASS=Pass@word

  customerapi:
    environment:
      - ASPNETCORE_ENVIRONMENT=Production
      - ASPNETCORE_URLS=http://0.0.0.0:80
    ports:
      - "5000:80"

  web:
    environment:
      - ASPNETCORE_ENVIRONMENT=Production
      - ASPNETCORE_URLS=http://0.0.0.0:80
    ports:
      - "7000:80"

volumes:
  sqlserverdata:
    external: true
  rabbitmqdata:
    external: true

When Refit (RestClient) try to fetch a record from the customerapi (GetCustomers) endpoint, where problem started to happen. I don’t know how to step into other projects while debugging from docker compose. I have set a break point in couple of places but it won’t hit the customerapi controller action method, since it is a micro-service being called by web front end. I have extracted following errors from a long lines of stack traces if you can help:-

[16:02:33 INF] Start processing HTTP request GET http://localhost:5000/api/customers
[16:02:33 INF] Sending HTTP request GET http://localhost:5000/api/customers
"GET CustomerManagement/Index","ai.location.ip":"172.20.0.1","ai.internal.sdkVersion":"rdddsc:2.10.0-32157","ai.internal.nodeName":"ec1567d9102f.(none)"},"data":{"baseType":"RemoteDependencyData","baseData":{"ver":2,"name":"GET /api/customers","id":"|1a08fcc1445823449b91fe1f785d0f1e.da75cb80_1.","data":"http://localhost:5000/api/customers","duration":"00:00:01.5894365","resultCode":"Faulted","success":false,"type":"Http","target":"localhost:5000","properties":{"DeveloperMode":"true","Error":"Cannot assign requested address","AspNetCoreEnvironment":"Production","_MS.ProcessedByMetricExtractors":"(Name:'Dependencies', Ver:'1.1')"}}}}

[11:16:04 INF] Start processing HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 INF] Sending HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 WRN] Error occured during request-execution. Polly will retry. Exception: Cannot assign requested address
web_1          | [11:16:04 INF] Start processing HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 INF] Sending HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 WRN] Error occured during request-execution. Polly will retry. Exception: Cannot assign requested address
web_1          | [11:16:04 INF] Start processing HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 INF] Sending HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 WRN] Error occured during request-execution. Polly will retry. Exception: Cannot assign requested address
web_1          | [11:16:04 INF] Start processing HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 INF] Sending HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 WRN] Error occured during request-execution. Polly will retry. Exception: Cannot assign requested address
web_1          | [11:16:04 INF] Start processing HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 INF] Sending HTTP request GET http://localhost:5000/api/customers
web_1          | [11:16:04 WRN] Error occured during request-execution. Polly will retry. Exception: Cannot assign requested address

I have tried to run your project but it also give me problem same at WorkshopmanagementAPI but it does display customer and vehicle api. I don’t understand where is the problem. I have spent quite a bit time to do a research on it, but could not find any answer therefore i have posted for your help. Hope you won’t mind it.

Thanks

[Urgen-Dorjee]

We are good now!!

Thanks

[EdwinVW]

I’ve looked at the code in the EnsureDatabase method and found the issue. It is the call to conn.Open() that is the culprit. This will throw an exception when the SQL Server instance is not yet up. To fix this, I’ve wrapped all open calls with a retry (812ad300ae069852ca5cc9ec5da0f2ea731e9e11).