Dev container - Image Naming convention changes (#376)

* Dev container - Image Naming convention changes

* Applying review comments.

Author: Kaniska244

src/alpine/.devcontainer/devcontainer.json

@@ -3,7 +3,7 @@
 {
 	"name": "Alpine",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/base:alpine-${templateOption:imageVariant}"
+	"image": "mcr.microsoft.com/devcontainers/base:alpine${templateOption:imageVariant}"
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
 	// "features": {},

src/alpine/README.md

@@ -7,7 +7,7 @@ Simple Alpine container with Git installed.
 
 | Options Id | Description | Type | Default Value |
 |-----|-----|-----|-----|
-| imageVariant | Alpine version: | string | 3.21 |
+| imageVariant | Alpine version: | string | 3.22 |
 
 This template references an image that was [pre-built](https://containers.dev/implementors/reference/#prebuilding) to automatically include needed devcontainer.json metadata.
 

src/alpine/devcontainer-template.json

@@ -11,12 +11,11 @@
             "type": "string",
             "description": "Alpine version:",
             "proposals": [
+                "3.22",
                 "3.21",
-                "3.20",
-                "3.19",
-                "3.18"
+                "3.20"
             ],
-            "default": "3.20"
+            "default": "3.22"
         }
     },
     "platforms": ["Any"],

src/cpp-mariadb/README.md

@@ -7,7 +7,7 @@ Develop C++ applications on Linux. Includes Debian C++ build tools.
 
 | Options Id | Description | Type | Default Value |
 |-----|-----|-----|-----|
-| imageVariant | Debian / Ubuntu version (use Debian 12, Debian 11, Ubuntu 24.04, and Ubuntu 22.04 on local arm64/Apple Silicon): | string | debian-11 |
+| imageVariant | Debian / Ubuntu version (use Debian 12, Debian 11, Ubuntu 24.04, and Ubuntu 22.04 on local arm64/Apple Silicon): | string | debian12 |
 | reinstallCmakeVersionFromSource | Install CMake version different from what base image has already installed. | string | none |
 
 This template references an image that was [pre-built](https://containers.dev/implementors/reference/#prebuilding) to automatically include needed devcontainer.json metadata.

src/cpp-mariadb/devcontainer-template.json

@@ -1,6 +1,6 @@
 {
     "id": "cpp-mariadb",
-    "version": "3.0.3",
+    "version": "3.1.0",
     "name": "C++ & MariaDB",
     "description": "Develop C++ applications on Linux. Includes Debian C++ build tools.",
     "documentationURL": "https://github.com/devcontainers/templates/tree/main/src/cpp-mariadb",
@@ -11,12 +11,12 @@
             "type": "string",
             "description": "Debian / Ubuntu version (use Debian 12, Debian 11, Ubuntu 24.04, and Ubuntu 22.04 on local arm64/Apple Silicon):",
             "proposals": [
-                "debian-12",
-                "debian-11",
-                "ubuntu-24.04",
-                "ubuntu-22.04"
+                "debian12",
+                "debian11",
+                "ubuntu24.04",
+                "ubuntu22.04"
             ],
-            "default": "debian-11"
+            "default": "debian12"
         },
         "reinstallCmakeVersionFromSource": {
             "type": "string",

src/cpp/README.md

@@ -7,7 +7,7 @@ Develop C++ applications on Linux. Includes Debian C++ build tools.
 
 | Options Id | Description | Type | Default Value |
 |-----|-----|-----|-----|
-| imageVariant | Debian / Ubuntu version (use Debian 12, Debian 11, Ubuntu 24.04, and Ubuntu 22.04 on local arm64/Apple Silicon): | string | debian-11 |
+| imageVariant | Debian / Ubuntu version (use debian12, debian11, ubuntu24.04, and ubuntu22.04 on local arm64/Apple Silicon): | string | debian12 |
 | reinstallCmakeVersionFromSource | Install CMake version different from what base image has already installed. | string | none |
 
 This template references an image that was [pre-built](https://containers.dev/implementors/reference/#prebuilding) to automatically include needed devcontainer.json metadata.

src/cpp/devcontainer-template.json

@@ -1,6 +1,6 @@
 {
     "id": "cpp",
-    "version": "3.0.3",
+    "version": "3.1.0",
     "name": "C++",
     "description": "Develop C++ applications on Linux. Includes Debian C++ build tools.",
     "documentationURL": "https://github.com/devcontainers/templates/tree/main/src/cpp",
@@ -11,12 +11,12 @@
             "type": "string",
             "description": "Debian / Ubuntu version (use Debian 12, Debian 11, Ubuntu 24.04, and Ubuntu 22.04 on local arm64/Apple Silicon):",
             "proposals": [
-                "debian-12",
-                "debian-11",
-                "ubuntu-24.04",
-                "ubuntu-22.04"
+                "debian12",
+                "debian11",
+                "ubuntu24.04",
+                "ubuntu22.04"
             ],
-            "default": "debian-11"
+            "default": "debian12"
         },
         "reinstallCmakeVersionFromSource": {
             "type": "string",

src/ubuntu/README.md

@@ -7,7 +7,7 @@ A simple Ubuntu container with Git and other common utilities installed.
 
 | Options Id | Description | Type | Default Value |
 |-----|-----|-----|-----|
-| imageVariant | Ubuntu version (use ubuntu-22.04 or ubuntu-24.04 on local arm64/Apple Silicon): | string | noble |
+| imageVariant | Ubuntu version (use ubuntu22.04 or ubuntu24.04 on local arm64/Apple Silicon): | string | noble |
 
 This template references an image that was [pre-built](https://containers.dev/implementors/reference/#prebuilding) to automatically include needed devcontainer.json metadata.