add devcontainer config

.devcontainer/Dockerfile

@@ -0,0 +1,13 @@
+FROM ruby:3.3-alpine
+
+RUN apk update && apk add curl gcc g++ gnupg make build-base ca-certificates socat git htop tzdata imagemagick ruby-dev openssl libpq-dev libxml2-dev libxslt-dev nodejs-current npm yarn cmake clang clang-dev
+
+RUN curl https://get.acme.sh | sh
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+ENV PATH="/root/.cargo/bin:$PATH"
+ENV RUSTFLAGS="-C target-feature=-crt-static"
+
+RUN gem install bundler -v 2.5.3 && \
+  bundle config set --local path vendor/bundle
+
+WORKDIR /rails

.devcontainer/devcontainer.json

@@ -0,0 +1,19 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/ruby-rails-postgres
+{
+	"name": "Homeland",
+	"dockerComposeFile": "docker-compose.yml",
+	"service": "app",
+	"workspaceFolder": "/rails",
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// This can be used to network with other containers or the host.
+	// "forwardPorts": [3000, 5432],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "bundle install && yarn install && bin/rails db:setup"
+	// Configure tool-specific properties.
+	// "customizations": {},
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/docker-compose.yml

@@ -0,0 +1,42 @@
+version: '3'
+
+services:
+  app:
+    build:
+      context: ..
+      dockerfile: .devcontainer/Dockerfile
+
+    platform: linux/amd64
+
+    volumes:
+      - ..:/rails:cached
+
+    # Overrides default command so things don't shut down after the process ends.
+    command: sleep infinity
+
+    # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
+    # network_mode: service:db
+
+    # Use "forwardPorts" in **devcontainer.json** to forward an app port locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+    environment:
+      DATABASE_URL: postgres://postgres:postgres@postgres:5432
+      REDIS_URL: redis://redis:6379
+
+  postgres:
+    image: postgres:latest
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_DB: postgres
+      POSTGRES_PASSWORD: postgres
+
+  redis:
+    image: redis:latest
+    volumes:
+      - ./tmp/redis:/data
+
+volumes:
+  postgres-data:

.gitignore

@@ -34,6 +34,7 @@ config/nginx/nginx.conf
 *.sublime-workspace
 .rvmrc
 vendor/ruby
+vendor/bundle
 .idea/
 spec/examples.txt
 .vagrant