docker extension

Author: Pavan-Microsoft

.devcontainer/devcontainer.json

@@ -4,7 +4,8 @@
     "forwardPorts": [50505],
     "features": {
         "ghcr.io/azure/azure-dev/azd:latest": {},
-        "ghcr.io/devcontainers/features/azure-cli:1": {}
+        "ghcr.io/devcontainers/features/azure-cli:1": {},
+        "ghcr.io/devcontainers/features/docker-in-docker:2": {}
     },
     "customizations": {
         "vscode": {