EOL - Aplpine 3.15 (devcontainers#832)

Author: samruddhikhandale

src/base-alpine/.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-# [Choice] Alpine version: 3.18, 3.17, 3.16, 3.15
+# [Choice] Alpine version: 3.18, 3.17, 3.16
 ARG VARIANT=3.18
 FROM alpine:${VARIANT}
 

src/base-alpine/README.md

@@ -9,7 +9,7 @@
 | *Categories* | Core, Other |
 | *Image type* | Dockerfile |
 | *Published images* | mcr.microsoft.com/devcontainers/base:alpine |
-| *Available image variants* | alpine-3.18, alpine-3.17, alpine-3.16, alpine-3.15 ([full list](https://mcr.microsoft.com/v2/devcontainers/base/tags/list)) |
+| *Available image variants* | alpine-3.18, alpine-3.17, alpine-3.16 ([full list](https://mcr.microsoft.com/v2/devcontainers/base/tags/list)) |
 | *Published image architecture(s)* | x86-64, aarch64/arm64 |
 | *Container host OS support* | Linux, macOS, Windows |
 | *Container OS* | Alpine Linux |
@@ -25,7 +25,6 @@ You can also directly reference pre-built versions of `.devcontainer/Dockerfile`
 - `mcr.microsoft.com/devcontainers/base:alpine-3.18`
 - `mcr.microsoft.com/devcontainers/base:alpine-3.17`
 - `mcr.microsoft.com/devcontainers/base:alpine-3.16`
-- `mcr.microsoft.com/devcontainers/base:alpine-3.15`
 
 Refer to [this guide](https://containers.dev/guide/dockerfile) for more details.
 

src/base-alpine/manifest.json

@@ -3,8 +3,7 @@
 	"variants": [
 		"3.18",
 		"3.17",
-		"3.16",
-		"3.15"
+		"3.16"
 	],
 	"build": {
 		"latest": false,