[layerindex-web,1/3] Add support for Development Containers

diff --git a/.devcontainer/.env b/.devcontainer/.env
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+DJANGO_SETTINGS_MODULE = 'docker.settings'
+DEBUG = 1
+SECRET_KEY = 'replace-me'
+HOSTNAME = 'localhost'
+EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
+BASE_DIR = '/opt/layerindex'
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diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
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+++ b/.devcontainer/devcontainer.json
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+{
+  "name": "Layerindex Web Development Container",
+  "dockerComposeFile": "docker-compose.yml",
+  "service": "app",
+  "workspaceFolder": "/opt/layerindex",
+  "postCreateCommand": "pip install ruff pytest && python3 manage.py migrate",
+  "remoteUser": "layers",
+  "forwardPorts": [
+    8000
+  ],
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        // Python extensions, since this is a Python/Django project
+        "ms-python.python",
+        // Include Pylance for type checking
+        "ms-python.vscode-pylance",
+        // Debugging support
+        "ms-python.debugpy",
+        // Ruff linter
+        "charliermarsh.ruff",
+        // Beautiful syntax and scoped snippets for Django
+        "batisteo.vscode-django",
+        // SQL tools allowing to connect to the database
+        "mtxr.sqltools-driver-mysql"
+      ],
+      "settings": {
+        "terminal.integrated.defaultProfile.linux": "bash",
+        "python.defaultInterpreterPath": "/usr/bin/python3",
+        "remote.autoForwardPorts": false,
+        "sqltools.connections": [
+          {
+            "mysqlOptions": {
+              "authProtocol": "default",
+              "enableSsl": "Disabled"
+            },
+            "ssh": "Disabled",
+            "previewLimit": 50,
+            "server": "layersdb",
+            "port": 3306,
+            "driver": "MariaDB",
+            "name": "layersdb",
+            "database": "layersdb",
+            "username": "root",
+            "password": "testingpw"
+          }
+        ],
+        "editor.formatOnSaveMode": "modifications",
+        "[jsonc]": {
+          "editor.defaultFormatter": "vscode.json-language-features"
+        },
+        "[python]": {
+          "editor.defaultFormatter": "charliermarsh.ruff"
+        },
+        "python.testing.unittestEnabled": false,
+        "python.testing.pytestEnabled": true,
+        "editor.rulers": [
+          80
+        ]
+      }
+    }
+  }
+}
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diff --git a/.devcontainer/docker-compose.yml b/.devcontainer/docker-compose.yml
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+++ b/.devcontainer/docker-compose.yml
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+services:
+  layersdb:
+    image: mariadb:lts
+    environment:
+      MARIADB_DATABASE: layersdb
+      MARIADB_ROOT_PASSWORD: testingpw
+    healthcheck:
+      test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
+      start_period: 10s
+      interval: 5s
+      timeout: 5s
+      retries: 5
+    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci --wait_timeout=28800 --max_allowed_packet=128M
+
+  layersrabbit:
+    image: rabbitmq:alpine
+    healthcheck:
+      test: rabbitmq-diagnostics -q ping
+      start_period: 10s
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  app:
+    depends_on:
+      layersdb:
+        condition: service_healthy
+      layersrabbit:
+        condition: service_healthy
+    build: ..
+    image: yoctoproject/layerindex-web
+    working_dir: /opt/layerindex
+    volumes:
+      - ..:/opt/layerindex
+      - workdir:/opt/workdir
+    env_file:
+      - .env
+    command: ["python3", "manage.py", "runserver", "0.0.0.0:8000"]
+
+  celery:
+    depends_on:
+      layersdb:
+        condition: service_healthy
+      layersrabbit:
+        condition: service_healthy
+    image: yoctoproject/layerindex-web
+    working_dir: /opt/layerindex
+    volumes:
+      - ..:/opt/layerindex:ro
+      - workdir:/opt/workdir
+    env_file:
+      - .env
+    command: /usr/local/bin/celery --workdir=/opt/layerindex --app layerindex.tasks worker --loglevel=INFO
+
+volumes:
+  workdir:
diff --git a/README.vscode b/README.vscode
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+++ b/README.vscode
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+VSCode + DevContainers Setup
+----------------------------
+
+If you already use VSCode and Docker, you can setup the local development
+environment using preconfigured DevContainers extension.
+
+Getting Started
+---------------
+
+1. Install Dev Containers extension (ms-vscode-remote.remote-containers)
+2. Open local clone of this repository in VSCode
+3. Click on "Reopen in Container" when prompted by VSCode
+4. Wait 1-2 minutes for VSCode to setup your DevContainer
+
+Once the DevContainer setup process is completed, you'll have access to:
+
+* Django development server running at http://localhost:8000
+* All Django database migrations applied
+* PyTest autodiscovery and debugger configured
+* Database client extension configured with the local server
+* Code linting and formatting with ruff
+* Command line git support with your SSH keys mounted in the container
+
+FAQ
+---
+
+1.  How do I import master branch from the public instance?
+
+    Run the following command in the VSCode Terminal:
+
+    $ layerindex/tools/import_layers.py https://layers.openembedded.org
+
+
+2.  How do I see emails sent by the development system?
+
+    Emails are logged to the standard output of the layerindex-web container.
+
+    To see the logs:
+
+    1. Open the Command Palette: Ctrl+Shift+P / Cmd+Shift+P
+    2. Type: "Remote Explorer: Focus on Dev Containers View"
+    3. Right-click on the layerindex-web container
+    4. Select "Show Container Log"
+
+
+3.  How do I interact with Django's manage.py script?
+
+    Open a new terminal window in VSCode and type:
+
+    $ ./manage.py ...
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