Create base docker image

.github/workflows/release.yml

@@ -1,10 +1,10 @@
 name: Publish Docker image
 on:
-  release:
-    types: [ published ]
+  push:
+    branches: [ master ]
 jobs:
   publish:
-    name: Push Docker image to GitHub Packages
+    name: Publish to GitHub Packages
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
@@ -16,5 +16,4 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
           registry: docker.pkg.github.com
           repository: lowlighter/metrics/metrics
-          tag_with_ref: true
-
+          tag_with_ref: true

.github/workflows/workflow.yml

@@ -35,20 +35,3 @@ jobs:
           config-file: ./.github/config/codeql.yml
       - name: Analyze code
         uses: github/codeql-action/analyze@v1
-
-  publish:
-    name: Publish to GitHub Packages
-    runs-on: ubuntu-latest
-    needs: [ build, analyze ]
-    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
-      - name: Publish image to GitHub Packages
-        uses: docker/build-push-action@v1
-        with:
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-          registry: docker.pkg.github.com
-          repository: lowlighter/metrics/metrics
-          tag_with_ref: true

Dockerfile

@@ -1,11 +1,10 @@
+# This is the base image used by metrics, without metrics source files
+
 # Base image
 FROM node:15-buster-slim
 
-# Copy repository
-COPY . /metrics
-
 # Setup
-RUN chmod +x /metrics/source/app/action/index.mjs \
+RUN mkdir /metrics \
   # Install latest chrome dev package, fonts to support major charsets and skip chromium download on puppeteer install
   # Based on https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md#running-puppeteer-in-docker
   && apt-get update \
@@ -25,11 +24,5 @@ RUN chmod +x /metrics/source/app/action/index.mjs \
   # Install python for node-gyp
   && apt-get update \
   && apt-get install -y python3 \
-  # Install node modules
-  && cd /metrics \
-  && npm ci
 ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD true
 ENV PUPPETEER_BROWSER_PATH "google-chrome-stable"
-
-# Execute GitHub action
-ENTRYPOINT node /metrics/source/app/action/index.mjs

action.yml

@@ -1,4 +1,4 @@
-# Action
+# Action metadata
 name: GitHub metrics as SVG image
 author: lowlighter
 description: Generate an user's GitHub metrics as SVG image format to embed somewhere else
@@ -9,7 +9,7 @@ runs:
   using: docker
   image: Dockerfile
 
-# Inputs
+# Inputs and configuration
 inputs:
 
   # Personal user token