add devcontainer

.devcontainer/devcontainer.json

@@ -0,0 +1,30 @@
+{
+	"name": "Python Dev Container",
+	"image": "python:3.9",
+	"customizations": {
+		"terminal.integrated.profiles.linux": {
+			"bash": {
+				"path": "/bin/bash"
+			}
+		},
+		"vscode": {
+			"settings": {
+				"terminal.integrated.defaultProfile.linux": "bash"
+			},
+			"extensions": [
+				"ms-python.python"
+			]
+		}
+	},
+	"containerEnv": {
+		"DATABASE_URL": "sqlite:///database.db",
+		"FLASK_APP": "app.py",
+		"FLASK_ENV": "development"
+	},
+	"mounts": [
+		"source=${localWorkspaceFolder}/database.db,target=/workspace/database.db,type=bind",
+		"source=${localWorkspaceFolder},target=/workspace/app,type=bind,consistency=cached"
+	],
+	"postCreateCommand": "pip install -r requirements.txt"
+}
+