update devcontainer definitions

.devcontainer/Dockerfile

@@ -1,8 +1,4 @@
-# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.202.5/containers/dotnet/.devcontainer/base.Dockerfile
-
-# [Choice] .NET version: 6.0, 5.0, 3.1, 6.0-bullseye, 5.0-bullseye, 3.1-bullseye, 6.0-focal, 5.0-focal, 3.1-focal
-ARG VARIANT="6.0-bullseye-slim"
-FROM mcr.microsoft.com/vscode/devcontainers/dotnet:0-${VARIANT}
+FROM mcr.microsoft.com/devcontainers/dotnet:dev-8.0
 
 # [Optional] Uncomment this section to install additional OS packages.
 # RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \

.devcontainer/devcontainer.json

@@ -1,42 +1,55 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
 // https://github.com/microsoft/vscode-dev-containers/tree/v0.202.5/containers/dotnet
 {
-    "name": "C# (.NET)",
-    "runArgs": [ "--init" ],
+    "name": "GitVersion",
     "build": {
         "dockerfile": "Dockerfile",
-        "args": {
-            "VARIANT": "7.0",
+        "context": "."
+    },
+    "features": {
+        "ghcr.io/devcontainers/features/common-utils:2": {
+            "installZsh": "true",
+            "username": "vscode",
+            "userUid": "1000",
+            "userGid": "1000",
+            "upgradePackages": "true"
+        },
+		"ghcr.io/devcontainers/features/git:1": {
+            "version": "latest",
+            "ppa": "false"
+        },
+        "ghcr.io/devcontainers/features/powershell:1": {
+            "version": "latest"
+        },
+        "ghcr.io/devcontainers/features/github-cli:1": {
+            "version": "latest"
+        },
+        "ghcr.io/devcontainers/features/docker-in-docker:2": {
+            "version": "latest"
         }
     },
-
-    // Set *default* container specific settings.json values on container create.
-    "settings": {
-        "editor.fontFamily": "'Cascadia Code', Consolas, 'Courier New', monospace",
-        "editor.rulers": [ 90 ],
-        "cSpell.words": [
-            "commiting",
-            "gittools",
-            "gitversion"
-        ],
+    "customizations": {
+        "vscode": {
+            "settings": {
+                "editor.fontFamily": "'Cascadia Code', Consolas, 'Courier New', monospace",
+                "editor.rulers": [ 90 ],
+                "cSpell.words": [
+                    "commiting",
+                    "gittools",
+                    "gitversion"
+                ]
+            },
+            // Add the IDs of extensions you want installed when the container is created.
+            "extensions": [
+                "ms-dotnettools.csharp",
+                "EditorConfig.EditorConfig",
+                "streetsidesoftware.code-spell-checker"
+            ]
+        }
     },
 
-    // Add the IDs of extensions you want installed when the container is created.
-    "extensions": [
-        "ms-dotnettools.csharp",
-        "EditorConfig.EditorConfig",
-        "streetsidesoftware.code-spell-checker"
-    ],
-
     "postCreateCommand": "dotnet restore src; dotnet build build",
 
     // Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
-    "remoteUser": "vscode",
-    "features": {
-        "docker-in-docker": "latest",
-        "git": "latest",
-        "github-cli": "latest",
-        "sshd": "latest",
-        "powershell": "latest"
-    }
+    "remoteUser": "vscode"
 }