Request for Guidance: Dockerizing Microservices in ABP.IO 8.3.1 with Angular, .NET 8, PostgreSQL #9874

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  AI-Bot created 11 hours ago

  Support Team ABP Agent

  1. To get started with ABP.IO microservices for your stack, use the official Microservice Startup Template. Download it with the ABP CLI:

  abp new Acme.BookStore -t microservice -u angular --database-provider postgresql
  

  This template includes .NET 8, Angular, PostgreSQL, Redis, and Docker support.

  2. The template provides sample Dockerfiles and a docker-compose.yml for all services (API Gateway, IdentityServer, microservices, Angular UI, PostgreSQL, Redis). After generating the solution, check the /docker folder and root docker-compose.yml. You can run all services with:

  docker compose up --build
  

  Make sure your docker-compose.yml exposes ports for API Gateway, IdentityServer, and Angular UI (e.g., 44300, 44301, 4200).

  3. Environment variables and connection strings are managed in docker-compose.override.yml and each service’s Dockerfile. For PostgreSQL and Redis, use service names as hostnames (e.g., Host=postgres; for PostgreSQL, Configuration=redis:6379 for Redis). ABP microservice templates use environment variables like ConnectionStrings__Default and Redis__Configuration for configuration. Example:

  environment:
    - ConnectionStrings__Default=Host=postgres;Port=5432;Database=abp;User Id=postgres;Password=yourpassword
    - Redis__Configuration=redis:6379
  

  All containers are on the same Docker network, so use service names (not localhost) for inter-service communication.

  4. Best practices:
     • Use the provided template and Docker Compose files as a base.
     • Always use Docker service names for connection strings.
     • Expose only necessary ports to your host.
     • For WSL2, access services via localhost:<exposed-port>.
     • Use .env files for secrets and environment-specific overrides.
     • For development, you can mount code as volumes for hot reload.

  If you have issues accessing services on localhost, ensure ports are published in docker-compose.yml and not blocked by firewalls. For WSL2, Docker’s networking is compatible with localhost access.

  Sources:

  • https://abp.io/docs/en/abp/latest/Startup-Templates/Microservice

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