Add devcontainer

.devcontainer/.env

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+ME_CONFIG_MONGODB_URL=mongodb://mongo:27017/
+MONGODB_URI=mongodb://mongo:27017/
+REDIS_ADDR=redis:6379
+DEV=true

.devcontainer/Dockerfile

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+ARG VARIANT=1.21
+FROM mcr.microsoft.com/vscode/devcontainers/go:0-${VARIANT}
+
+# [Choice] Node.js version: none, lts/*, 16, 14, 12, 10
+ARG NODE_VERSION="21"
+RUN if [ "${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 the next lines to use go get to install anything else you need
+# USER vscode
+# RUN go get -x <your-dependency-or-tool>
+# USER root
+
+# [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

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+{	
+	"name": "Go & MongoDB",
+	"dockerComposeFile": "docker-compose.yml",
+	"service": "app",
+	"workspaceFolder": "/workspace",
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			// Set *default* container specific settings.json values on container create.
+			"settings": { 
+				"go.toolsManagement.checkForUpdates": "local",
+				"go.useLanguageServer": true,
+				"go.gopath": "/go",
+				"go.goroot": "/usr/local/go"
+			},
+			
+			// Add the IDs of extensions you want installed when the container is created.
+			"extensions": [
+				"golang.Go",
+				"ms-azuretools.vscode-docker"
+			]
+		}
+	},
+	"forwardPorts": [3001],
+	"postCreateCommand": "go version && go mod download",
+	"remoteUser": "vscode",
+	"features": {
+		"kubectl-helm-minikube": "latest",
+		"github-cli": "latest"
+	}
+}

.devcontainer/docker-compose.yml

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+version: '3.8'
+
+services:
+  app:
+    build: 
+      context: .
+      dockerfile: Dockerfile
+      args:
+        VARIANT: 1
+        # NODE_VERSION: "lts/*"
+    env_file:
+        - .env
+
+#     security_opt:
+#       - seccomp:unconfined
+#     cap_add:
+#       - SYS_PTRACE
+
+    volumes:
+      - ..:/workspace:cached
+      
+    command: sleep infinity
+    # user: vscode
+
+  redis:
+    image: redis
+    volumes:
+      - redis-data:/data
+    env_file:
+        - .env
+
+  mongo:
+    image: mongo
+    volumes:
+      - mongo-data:/data/db
+    env_file:
+        - .env
+
+  mongo-express:
+    image: mongo-express
+    ports:
+      - "8081:8081"
+    env_file:
+        - .env
+    environment:
+      ME_CONFIG_MONGODB_URL: mongodb://mongo:27017/
+
+volumes:
+  redis-data:
+  mongo-data: