Merge pull request #56 from k4my4b/new_oci_base

New oci base

.github/workflows/base_build_and_publish.yml

@@ -0,0 +1,22 @@
+name: Build and publish docker-cloud/base OCI package(s)
+
+on:
+  push:
+    branches: [ "main" ]
+    paths: ["base/**"]
+
+jobs:
+  build_and_publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build and push the OCI base image to ghcr.io
+        run: |
+          docker login --username ${{ github.actor }} --password ${{ secrets.GITHUB_TOKEN }} ghcr.io
+          docker build ./base --tag ghcr.io/${{ github.actor }}/base:latest
+          docker push ghcr.io/${{ github.actor }}/base:latest

base/Dockerfile

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+FROM alpine:3.19
+
+RUN apk add --no-cache parallel grml-zsh-config
+
+COPY --chmod=775 init.d /init.d
+COPY --chmod=755 init.sh /init.sh
+COPY --chmod=775 healthcheck.d /healthcheck.d
+COPY --chmod=755 healthcheck.sh /healthcheck.sh
+
+ENTRYPOINT ["/init.sh"]
+CMD ["/init.d/start", "/init.d/stop"]
+
+HEALTHCHECK CMD ["/healthcheck.sh", "/healthcheck.d"]

base/healthcheck.sh

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+#!/usr/bin/env sh
+
+# Default healthcheck directory is /healthcheck.d if not passed as an argument
+DIR="${1:-/healthcheck.d}"
+
+# Find executable files in the healthcheck directory and run them in parallel
+find "$DIR" -type f -executable | parallel --will-cite --halt 2 'sh {}' || {
+    echo "Container is unhealthy!"
+    kill -TERM 1
+    exit 1
+}

base/init.d/start/00-default.sh

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+#!/usr/bin/env sh
+
+echo "Starting up, hello!"

base/init.d/stop/99-default.sh

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+#!/usr/bin/env sh
+
+echo "Shutting down, goodbye!"
+exit 0

base/init.sh

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+#!/usr/bin/env sh
+
+# Default starting directory is /init.d/start if not passed as argument
+INDIR="${1:-/init.d/start}"
+
+# Default stoppping directory is /init.d/stop if not passed as argument
+EDIR="${2:-/init.d/stop}"
+
+batch_and_run_in_parallel() {
+    # Find and sort scripts
+    find "$1" -type f -executable -name '[0-9]*' | sort -V | \
+    # Group the scripts of the same priority together
+    awk '
+    {
+        split($0, arr, "/")
+        file = arr[length(arr)]
+        num = substr(file, 1, index(file, "-") - 1)
+        if (num != prev) {
+            if (NR > 1) {
+                print ""
+            }
+            prev = num
+        }
+        printf "%s ", $0
+    }
+    END { print "" }
+    ' | \
+    # Execute scripts of the same priority (same group) in parallel
+    # Exit as soon as a script fails to execute properly
+    while IFS= read -r scripts; do
+        parallel --will-cite --halt 2 -k -u -d ' ' sh {} ::: $scripts || {
+		kill -TERM 1
+		exit 1
+	}
+    done
+}
+
+trap 'batch_and_run_in_parallel "$EDIR"' TERM EXIT
+
+batch_and_run_in_parallel "$INDIR"