Add dev container for GitHub Codespaces and VSCode remote container

.devcontainer/Dockerfile

@@ -0,0 +1,14 @@
+# [Choice] Node.js version: 16, 14, 12
+ARG VARIANT=12-buster
+FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:0-${VARIANT}
+
+# [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 if you want to install an additional version of node using nvm
+# ARG EXTRA_NODE_VERSION=10
+# RUN su node -c "source /usr/local/share/nvm/nvm.sh && nvm install ${EXTRA_NODE_VERSION}"
+
+# [Optional] Uncomment if you want to install more global node modules
+RUN su node -c "npm install -g npm@6"

.devcontainer/devcontainer.json

@@ -0,0 +1,58 @@
+{
+	"name": "CodiMD",
+	"dockerComposeFile": "docker-compose.yml",
+	"service": "app",
+	"workspaceFolder": "/workspace",
+
+	// Set *default* container specific settings.json values on container create.
+	"settings": { 
+		"terminal.integrated.shell.linux": "/bin/zsh",
+		"sqltools.connections": [{
+			"name": "Container Database",
+			"driver": "PostgreSQL",
+			"previewLimit": 50,
+			"server": "localhost",
+			"port": 5432,
+			"database": "codimd",
+			"username": "codimd",
+			"password": "codimd"
+		}],
+	},
+
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"dbaeumer.vscode-eslint",
+		"visualstudioexptteam.vscodeintellicode",
+		"christian-kohler.path-intellisense",
+		"standard.vscode-standard",
+		"mtxr.sqltools",
+		"mtxr.sqltools-driver-pg",
+		"eamodio.gitlens",
+		"codestream.codestream", 
+		"github.vscode-pull-request-github",
+		"cschleiden.vscode-github-actions",
+		"hbenl.vscode-mocha-test-adapter",
+		"hbenl.vscode-test-explorer"
+	],
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	"portsAttributes": {
+		"3000": {
+			"label": "CodiMD server",
+			"onAutoForward": "notify"
+		},
+		"5432": {
+			"label": "PostgreSQL",
+			"onAutoForward": "notify"
+		}
+	},
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "yarn install",
+	"postCreateCommand": "sudo chown -R node:node node_modules && /workspace/bin/setup",
+
+	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "node"
+}

.devcontainer/docker-compose.yml

@@ -0,0 +1,46 @@
+version: '3'
+
+services: 
+  app:
+    build:
+      context: ..
+      dockerfile: .devcontainer/Dockerfile
+      args:
+        VARIANT: 12-buster
+    environment:
+      - CMD_DB_URL=postgres://codimd:codimd@localhost/codimd
+      - CMD_USECDN=false
+    volumes: 
+      - ..:/workspace:cached
+      - node_modules:/workspace/node_modules: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
+
+    # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
+
+    # 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:
+    image: postgres:12.7-alpine
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    environment:
+      - POSTGRES_USER=codimd
+      - POSTGRES_PASSWORD=codimd
+      - POSTGRES_DB=codimd
+
+    # Add "forwardPorts": ["5432"] to **devcontainer.json** to forward PostgreSQL locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+volumes:
+  node_modules:
+  postgres-data: 

package.json

@@ -19,7 +19,7 @@
     "dev": "webpack --config webpack.dev.js --progress --colors --watch",
     "doctoc": "doctoc --title='# Table of Contents' README.md",
     "lint": "standard",
-    "jsonlint": "find . -type f -not -ipath \"./node_modules/*\" -not -ipath \"./.vscode/*\" \\( -name \"*.json\" -o -name \"*.json.*\" \\) | xargs -n 1 -I{} -- bash -c 'echo {}; jq . {} > /dev/null;'",
+    "jsonlint": "find . -type f -not -ipath \"./.devcontainer/*\" -not -ipath \"./node_modules/*\" -not -ipath \"./.vscode/*\" \\( -name \"*.json\" -o -name \"*.json.*\" \\) | xargs -n 1 -I{} -- bash -c 'echo {}; jq . {} > /dev/null;'",
     "start": "sequelize db:migrate && node app.js",
     "mocha": "mocha --require intelli-espower-loader --exit ./test --recursive",
     "mocha:ci": "mocha --no-color -R dot --require intelli-espower-loader --exit ./test --recursive",