The devcontainer setup for a Warpdocs golang SaaS

devcontainer.json

{
  "name": "Warpdocs Dev Container",
  "dockerComposeFile": "./docker-compose.yml",
  "workspaceFolder": "/workspace",
  "service": "app",
  "forwardPorts": [8000],
  "customizations": {
    "vscode": {
      "extensions": [
        "golang.Go",
        "ms-azuretools.vscode-docker",
        "esbenp.prettier-vscode",
        "dbaeumer.vscode-eslint",
        "pbkit.vscode-pbkit"
      ]
    }
  }
}

docker-compose.yml

services:
  app:
    build:
      context: ..
      dockerfile: .devcontainer/Dockerfile
    ports:
      - "8000:8000"
    volumes:
      - ..:/workspace:cached
    depends_on:
      - db
      - mailhog
      - redis
  db:
    image: postgres:latest
    restart: unless-stopped
    volumes:
      - postgres-data:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres
      POSTGRES_DB: warpdocs
  mailhog:
    image: mailhog/mailhog
    restart: unless-stopped
    ports:
      - "1025:1025"
      - "8025:8025"
  redis:
    image: redis:latest
    restart: always
    ports:
      - "6379:6379"
    volumes:
      - redis-data:/data
volumes:
  postgres-data:
  redis-data:

Dockerfile

FROM mcr.microsoft.com/devcontainers/base:ubuntu

# Install Go
ARG TARGETARCH
ARG GO_VERSION=1.23.0
RUN curl -fsSL https://golang.org/dl/go${GO_VERSION}.linux-${TARGETARCH}.tar.gz | tar -C /usr/local -xzf -
RUN BIN="/usr/local/bin" && \
    VERSION="1.37.0" && \
    curl -sSL \
    "https://github.com/bufbuild/buf/releases/download/v${VERSION}/buf-$(uname -s)-$(uname -m)" \
    -o "${BIN}/buf" && \
    chmod +x "${BIN}/buf"

# Install Node.js
RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | bash -
RUN apt-get install -y nodejs

# Set the working directory
USER vscode
WORKDIR /workspace

# Set up Go path
ENV GOPATH=/home/vscode/go
ENV PATH=$PATH:$GOPATH/bin:/usr/local/go/bin

RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@latest \
    && go install github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway@latest \
    && go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest \
    && go install github.com/kollalabs/protoc-gen-openapi@latest

CMD ["sleep", "infinity"]