move to dockerfile instead of compose

.devcontainer/Dockerfile

@@ -1,7 +1,6 @@
-FROM mcr.microsoft.com/devcontainers/python:1-3.11-bullseye AS devcontainer
+FROM mcr.microsoft.com/devcontainers/python:1-3.11-bullseye
 
 USER vscode
-RUN sudo apt update && sudo apt upgrade -y && sudo apt install -y --no-install-recommends xvfb
 RUN pipx install poetry
 RUN poetry config virtualenvs.in-project true
 RUN sudo wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb

.devcontainer/devcontainer.json

@@ -3,9 +3,10 @@
 {
 	"name": "Python 3",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"dockerComposeFile": "docker-compose.yml",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
 	"workspaceFolder": "/workspace/${localWorkspaceFolderBasename}",
-	"service": "app",
 	"customizations": {
 		"vscode": {
 			"extensions": [
@@ -18,6 +19,7 @@
 			}
 		}
 	},
+	"postStartCommand": "poetry install",
 	// Features to add to the dev container. More info: https://containers.dev/features.
 	// "features": {},
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.

.devcontainer/docker-compose.yml

@@ -1,11 +0,0 @@
-services:
-  app:
-    command: sleep infinity
-    ports:
-      - 8191:8191
-    volumes:
-      - ../..:/workspace:cached
-    build:
-      target: devcontainer
-  selenium:
-    image: selenium/standalone-chromium:latest