🔨 Add dev container

.devcontainer/Dockerfile

@@ -0,0 +1,23 @@
+# [Choice] Java version (use -bullseye variants on local arm64/Apple Silicon): 11, 17, 11-bullseye, 17-bullseye, 11-buster, 17-buster
+ARG VARIANT=11-bullseye
+FROM mcr.microsoft.com/vscode/devcontainers/java:0-${VARIANT}
+
+# [Option] Install Maven
+ARG INSTALL_MAVEN="false"
+ARG MAVEN_VERSION=""
+# [Option] Install Gradle
+ARG INSTALL_GRADLE="false"
+ARG GRADLE_VERSION=""
+RUN if [ "${INSTALL_MAVEN}" = "true" ]; then su vscode -c "umask 0002 && . /usr/local/sdkman/bin/sdkman-init.sh && sdk install maven \"${MAVEN_VERSION}\""; fi \
+    && if [ "${INSTALL_GRADLE}" = "true" ]; then su vscode -c "umask 0002 && . /usr/local/sdkman/bin/sdkman-init.sh && sdk install gradle \"${GRADLE_VERSION}\""; fi
+
+# [Choice] Node.js version: none, lts/*, 16, 14, 12, 10
+ARG NODE_VERSION="none"
+RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
+
+# [Optional] Uncomment this line to install global node packages.
+# RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1

.devcontainer/devcontainer.json

@@ -0,0 +1,27 @@
+{
+	"name": "Java & Mariadb",
+	"dockerComposeFile": "docker-compose.yml",
+	"service": "app",
+	"workspaceFolder": "/workspace",
+	
+	// Set *default* container specific settings.json values on container create.
+	"settings": {
+		"java.home": "/docker-java-home"
+	},
+	
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"vscjava.vscode-java-pack",
+		"pivotal.vscode-boot-dev-pack"
+	],
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// This can be used to network with other containers or with the host.
+	// "forwardPorts": [5432],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "java -version",
+
+	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode"
+}

.devcontainer/docker-compose.yml

@@ -0,0 +1,48 @@
+version: '3.8'
+
+volumes:
+  mysql-data:
+services:
+  app:
+    container_name: javadev
+    build:
+      context: .
+      dockerfile: Dockerfile
+      args:
+        # Update 'VARIANT' to pick an version of Java: 11, 17.
+        # Append -bullseye or -buster to pin to an OS version.
+        # Use -bullseye variants on local arm64/Apple Silicon.
+        VARIANT: "17"
+        # Options
+        INSTALL_MAVEN: "false"
+        MAVEN_VERSION: ""
+        INSTALL_GRADLE: "true"
+        GRADLE_VERSION: "7.4.2"
+        NODE_VERSION: "lts/*"
+    volumes:
+      - ..:/workspace: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
+    # Uncomment the next line to use a non-root user for all processes.
+    # user: vscode
+
+    # Use "forwardPorts" in **devcontainer.json** to forward an app port locally. 
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+  db:
+    container_name: database
+    image: mariadb:latest
+    restart: unless-stopped
+    volumes:
+      - mysql-data:/var/lib/mysql
+    environment:
+      MARIADB_ROOT_PASSWORD: mariadb_root
+      MARIADB_PASSWORD: claptrap
+      MARIADB_USER: claptrap
+      MARIADB_DATABASE: claptrap
+    # Add "forwardPorts": ["5432"] to **devcontainer.json** to forward PostgreSQL locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)

.gitignore

@@ -30,3 +30,5 @@ src/main/resources/static/error/js
 
 **.log
 .jpb/
+
+**/*.env