Add Alpine Linux

.github/workflows/build.yaml

@@ -326,3 +326,40 @@ jobs:
                   asset_path: ./rocky/lx-rocky-${{ matrix.RELEASE }}.tar.xz
                   asset_name: lx-rocky-${{ matrix.RELEASE }}-${{ needs.prepare.outputs.tag }}.tar.xz
                   asset_content_type: application/x-xz
+
+    alpine:
+        needs: prepare
+        strategy:
+            matrix:
+                RELEASE:
+                    - 3
+
+        name: Build Alpine Linux ${{ matrix.RELEASE }}
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+
+            - name: Build Image
+              id: build_image
+              run: |
+                  set -xe
+                  cd alpine
+                  tar=lx-alpine-${{ matrix.RELEASE }}.tar
+                  tag=release:$$
+                  docker build --tag $tag --build-arg ALPINE_RELEASE=${{ matrix.RELEASE }} .
+                  container=$(docker create $tag)
+                  docker cp $container:. - > $tar
+                  docker rm $container
+                  docker rmi $tag
+                  xz $tar
+            - name: Upload Release Asset
+              id: upload_release_asset
+              uses: actions/upload-release-asset@v1
+              env:
+                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+              with:
+                  upload_url: ${{ needs.prepare.outputs.upload_url }}
+                  asset_path: ./alpine/lx-alpine-${{ matrix.RELEASE }}.tar.xz
+                  asset_name: lx-alpine-${{ matrix.RELEASE }}-${{ needs.prepare.outputs.tag }}.tar.xz
+                  asset_content_type: application/x-xz

alpine/Dockerfile

@@ -0,0 +1,5 @@
+ARG ALPINE_RELEASE
+FROM alpine:${ALPINE_RELEASE}
+COPY helpers /helpers
+ARG ALPINE_RELEASE=${ALPINE_RELEASE}
+RUN cd /helpers; sh build.sh; cd /; rm -rf helpers

alpine/helpers/build.sh

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+# Update the package manager
+apk update
+# Update all packages
+apk upgrade
+
+# Install extras
+apk add -u \
+	alpine-base \
+	alpine-conf \
+	alpine-release \
+	apk-tools-doc \
+        bash \
+	bind-tools \
+	busybox-mdev-openrc \
+	busybox-openrc \
+	busybox-suid \
+	curl \
+	logrotate \
+	logrotate-openrc \
+	man-db \
+	man-pages \
+	mdev-conf \
+	openrc \
+	openssh \
+	sudo \
+	vim
+
+# Enable services
+rc-update add bootmisc boot
+rc-update add devfs boot
+rc-update add syslog boot
+rc-update add crond default
+rc-update add local default
+rc-update add sshd default

alpine/helpers/inittab

@@ -0,0 +1,13 @@
+# /etc/inittab
+::sysinit:/sbin/openrc sysinit
+::sysinit:/sbin/openrc boot
+::wait:/sbin/openrc default
+
+# Set up a couple of getty's
+::respawn:/sbin/getty 38400 console
+
+# Stuff to do for the 3-finger salute
+::ctrlaltdel:/sbin/reboot
+
+# Stuff to do before rebooting
+::shutdown:/sbin/openrc shutdown