Add Dev Containers config

.devcontainer/devcontainer.json

@@ -0,0 +1,57 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+	"name": "Python 3",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/python:1-3.11-bullseye",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	"features": {
+		"ghcr.io/devcontainers/features/node:1": {}
+	},
+
+	"forwardPorts": [4141, 4142],
+
+	"portsAttributes": {
+		"4142": {
+			"label": "Backend",
+			"onAutoForward": "notify"
+		},
+		"4141": {
+			"label": "Frontend",
+			"onAutoForward": "openBrowser"
+		}
+	},
+
+	"containerEnv": {
+		"DISPLAY": "dummy",
+		"PYTHONUNBUFFERED": "True",
+		"UV_LINK_MODE": "copy",
+		"VIRTUAL_ENV": "/home/vscode/venv"
+	},
+
+	// FIXME: Why does it say "Property build is not allowed" despite it being part of the standard and the docs?
+	// https://containers.dev/implementors/json_reference/#image-specific
+	// https://code.visualstudio.com/docs/devcontainers/create-dev-container#_dockerfile
+	"build": {
+		"args": {
+			"NODE_VERSION": "18"
+		}
+	},
+
+	"onCreateCommand": "./.devcontainer/onCreateCommand.sh",
+
+	"postStartCommand": {
+		"backend": "nohup bash -c 'uv run python package/kedro_viz/server.py demo-project &' > backend.out 2> backend.err < /dev/null",
+		// FIXME: Looks like the frontend is not needed? The backend stands on its own
+		"frontend": "nohup bash -c 'npm start &' > frontend.out 2> frontend.err"
+	},
+
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"ms-python.python"
+			]
+		}
+	}
+}

.devcontainer/onCreateCommand.sh

@@ -0,0 +1,16 @@
+#! /usr/bin/env bash
+
+# http://redsymbol.net/articles/unofficial-bash-strict-mode/
+set -euo pipefail
+IFS=$'\n\t'
+
+# Install uv
+curl -LsSf https://astral.sh/uv/install.sh | sh
+
+uv venv $VIRTUAL_ENV
+
+uv pip install -r package/test_requirements.txt -r demo-project/src/docker_requirements.txt
+uv pip install -e package/
+
+# Now the NPM dependencies too
+npm install

.dockerignore

@@ -0,0 +1 @@
+.venv

.gitignore

@@ -65,3 +65,5 @@ coverage.xml
 
 # Kedro
 *.log
+
+.venv/