awesome-compose

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Compose sample application

Use with Docker Development Environments

You can open this sample in the Dev Environments feature of Docker Desktop version 4.12 or later.

Open in Docker Dev Environments

ASP.NET server with an Nginx proxy and a MySQL database

Project structure:

.
├── backend
│   ├── Dockerfile
│   ├── aspnet.csproj
│   └── Program.cs
├── db
│   └── password.txt
├── compose.yaml
├── proxy
│   ├── conf
│   └── Dockerfile
└── README.md

compose.yaml

services:
  backend:
    build:
      context: backend
    ...
  db:
    # We use a mariadb image which supports both amd64 & arm64 architecture
    image: mariadb:10-focal
    # If you really want to use MySQL, uncomment the following line
    #image: mysql:8
    ...
  proxy:
    build: proxy
    ports:
    - 80:80
    ...

The compose file defines an application with three services proxy, backend and db. When deploying the application, docker compose maps port 80 of the proxy service container to port 80 of the host as specified in the file. Make sure port 80 on the host is not already being in use.

ℹ️ INFO
For compatibility purpose between AMD64 and ARM64 architecture, we use a MariaDB as database instead of MySQL.
You still can use the MySQL image by uncommenting the following line in the Compose file
#image: mysql:8.0.27

Deploy with docker compose

$ docker compose up -d

Expected result

Listing containers must show three containers running and the port mapping as below:

$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
8906b14c5ad1        nginx-aspnet-mysql_proxy     "nginx -g 'daemon of…"   2 minutes ago       Up 2 minutes        0.0.0.0:80->80/tcp    nginx-aspnet-mysql
l_proxy_1
13e0e0a7715a        nginx-aspnet-mysql_backend   "/server"                2 minutes ago       Up 2 minutes        8000/tcp              nginx-aspnet-mysq
l_backend_1
ca8c5975d205        mysql:5.7                    "docker-entrypoint.s…"   2 minutes ago       Up 2 minutes        3306/tcp, 33060/tcp   nginx-aspnet-mysql
l_db_1

After the application starts, navigate to http://localhost:80 in your web browser or run:

$ curl localhost:80
["Blog post #0","Blog post #1","Blog post #2","Blog post #3","Blog post #4"]

Stop and remove the containers

$ docker compose down

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