refactor!: remove EOL Node.js 12

.github/workflows/buildx.yml

@@ -8,14 +8,11 @@ on:
 
 jobs:
   buildx:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         docker-file:
-          - path: 12
-            tags: "12 erbium"
-            platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x,linux/arm/v7,linux/arm/v6
           - path: 14
             tags: "14 fermium"
             platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x,linux/arm/v7,linux/arm/v6

.github/workflows/dockerimage.yml

@@ -9,6 +9,5 @@ jobs:
       - uses: actions/checkout@v3
       - name: Build the Docker image
         run: |
-          docker run -i $(docker build -q 12) /bin/sh -c "node --version && npm --version && git --version"
           docker run -i $(docker build -q 14) /bin/sh -c "node --version && npm --version && git --version"
           docker run -i $(docker build -q 16) /bin/sh -c "node --version && npm --version && git --version"

.github/workflows/hadolint.yml

@@ -8,4 +8,4 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - run: brew install hadolint
-      - run: hadolint {12,14,16}/Dockerfile
+      - run: hadolint {14,16}/Dockerfile

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+  "yaml.schemas": {
+    "https://json.schemastore.org/github-workflow.json": "./.github/workflows/hadolint.yml"
+  }
+}

12/Dockerfile

@@ -1,10 +0,0 @@
-FROM node:erbium-alpine3.14
-LABEL maintainer "Tim Brust <github@timbrust.de>"
-
-ARG REFRESHED_AT
-ENV REFRESHED_AT $REFRESHED_AT
-
-RUN apk -U upgrade \
-  && apk add --no-cache \
-    git \
-    openssh

README.md

@@ -4,12 +4,12 @@
 [![buildx Status](https://github.com/timbru31/docker-node-alpine-git/workflows/buildx/badge.svg)](https://github.com/timbru31/docker-node-alpine-git/actions?query=workflow%3Abuildx)
 [![Lint Dockerfiles](https://github.com/timbru31/docker-node-alpine-git/workflows/Lint%20Dockerfiles/badge.svg)](https://github.com/timbru31/docker-node-alpine-git/actions?query=workflow%3A%22Lint+Dockerfiles%22)
 
-A minimal Dockerfile based on Node.js 12 LTS (Erbium), Node.js 14 LTS (Fermium) or Node.js 16 LTS (Gallium) alpine with Git and ssh installed.
+A minimal Dockerfile based on Node.js 14 LTS (Fermium) or Node.js 16 LTS (Gallium) alpine with Git and ssh installed.
 
 ## What's included
 
-- Node.js Node.js 12 LTS, Node.js 14 LTS or Node.js 16 LTS
+- Node.js 14 LTS (Fermium) or 16 LTS (Gallium)
-- npm 6 (< Node.js 16) or npm 8 (Node.js 16)
+- npm 6 (Node.js 14) or npm 8 (Node.js 16)
 - yarn
 - Git
 - ssh