docker outside of docker (GSI-414)

- details can be found here: https://github.com/devcontainers/features/tree/main/src/docker-outside-of-docker
- removed name from devcontainer json to make it static

.devcontainer/devcontainer.json

@@ -2,7 +2,7 @@
 // https://github.com/microsoft/vscode-dev-containers/tree/v0.177.0/containers/python-3-postgres
 // Update the VARIANT arg in docker-compose.yml to pick a Python version: 3, 3.8, 3.7, 3.6
 {
-	"name": "my-microservice",
+	"name": "${localWorkspaceFolderBasename}",
 	"dockerComposeFile": "docker-compose.yml",
 	"service": "app",
 	"workspaceFolder": "/workspace",
@@ -83,12 +83,13 @@
 	"postCreateCommand": "dev_install",
 	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
 	"remoteUser": "vscode",
+	"containerEnv": {
+		// for testcontainers to connect to the docker host:
+		"TC_HOST": "host.docker.internal",
+		"DOCKER_HOST": "unix:///var/run/docker.sock"
+	},
 	"features": {
-		"ghcr.io/devcontainers/features/docker-in-docker:2": {
-			"version": "latest",
-			"enableNonRootDocker": "true",
-			"moby": true,
-			"azureDnsAutoDetection": false
-		}
+		// details can be found here: https://github.com/devcontainers/features/tree/main/src/docker-outside-of-docker
+		"ghcr.io/devcontainers/features/docker-outside-of-docker:1": {}
 	}
 }

.mandatory_files

@@ -6,7 +6,6 @@
 # may differ from that of the template repository.
 
 .devcontainer/dev_launcher
-.devcontainer/devcontainer.json
 .devcontainer/docker-compose.yml
 .devcontainer/Dockerfile
 

.static_files

@@ -11,6 +11,7 @@
 .devcontainer/dev_install
 .devcontainer/license_header.txt
 .devcontainer/Dockerfile
+.devcontainer/devcontainer.json
 
 scripts/script_utils/__init__.py
 scripts/script_utils/cli.py