DBP-190 Initial commit with Dockerfile and Github actions (#1)

* DBP-190 Initial commit with Dockerfile and Github actions

* DBP-190 Added additional number to version number

* DBP-190 Added permissions to etherpad to ghcr workflow

* DBP-190 Removed leftover Moodle

.github/workflows/build-and-push-on-tag.yaml

@@ -0,0 +1,26 @@
+---
+name: Build and push Docker Image on Tag
+
+on:
+  push:
+    tags:
+      - '[0-9]+.[0-9]+.[0-9].[0-9]+'
+jobs:
+  pre_build:
+    runs-on: ubuntu-latest
+    outputs:
+      tag: ${{ steps.tag.outputs.tag }}
+      suffix: ${{ steps.tag.outputs.suffix }}
+    steps:
+      - name: Filter Tag name
+        uses: olegtarasov/[email protected]
+        id: tag
+        with:
+          tagRegex: "(?<tag>[0-9]+.[0-9]+.[0-9]+.[0-9]+)"
+  build_and_push:
+    needs: pre_build
+    uses: hpi-schul-cloud/infra-tools/.github/workflows/build-and-push.yaml@master
+    with:
+      registry: ghcr.io
+      image: dbildungsplattform/etherpad
+      tag: ${{ needs.pre_build.outputs.tag }}

.github/workflows/etherpad-to-ghcr-on-push.yaml

@@ -0,0 +1,18 @@
+---
+name: Etherpad Docker Image on Push to GHCR
+
+on:
+  push:
+    branches-ignore:
+      - master
+
+jobs:
+  build_image_on_push:
+    permissions:
+      actions: read
+      contents: read
+      packages: write
+      security-events: write
+    uses: hpi-schul-cloud/infra-tools/.github/workflows/imagetoghcr-on-push.yaml@master
+    with:
+      image_name: "etherpad"

.github/workflows/trivy-cron.yaml

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+---
+name: Docker Image Trivy Image Vulnerability Scan Cron Job
+on:
+  schedule:
+
+    - cron: '0 2 * * *'
+permissions:
+  # security-events required for all workflows; action, contents only required for workflows in private repositories
+  security-events: write
+  actions: read
+  contents: read
+jobs:
+  trivy_image_scan_cron:
+    uses: hpi-schul-cloud/infra-tools/.github/workflows/trivy-scan.yaml@master
+    with:
+      image-ref: 'ghcr.io/dbildungsplattform/etherpad:latest'

Dockerfile

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+FROM etherpad/etherpad:1.8.18
+RUN npm install --no-save --legacy-peer-deps ep_mathjax