[feature] add comparison

.github/workflows/docker.yml

@@ -338,22 +338,20 @@ jobs:
 
 
       # README
-      - name: github / checkout master
+      - name: github / checkout HEAD
         continue-on-error: true
-        run: |    
-          git pull     
-          git checkout master
+        run: |     
+          git checkout HEAD
 
       - name: docker / setup comparison images
         if: env.WORKFLOW_CREATE_COMPARISON == 'true'
         continue-on-error: true
         run: |    
-          docker image prune -af
           docker image pull ${{ env.WORKFLOW_CREATE_COMPARISON_IMAGE }}
           docker image pull ${{ env.WORKFLOW_CREATE_COMPARISON_FOREIGN_IMAGE }}
-          docker image ls &> ./docker.image.ls
-          echo "${PWD}"
-          cat ./docker.image.ls
+          docker image ls --filter "reference=${{ env.WORKFLOW_CREATE_COMPARISON_IMAGE }}" --format json | jq --raw-output '.Size' &> ./comparison.size0.log
+          docker image ls --filter "reference=${{ env.WORKFLOW_CREATE_COMPARISON_FOREIGN_IMAGE }}" --format json | jq --raw-output '.Size' &> ./comparison.size1.log
+          docker run --entrypoint "/bin/sh" --rm ${{ env.WORKFLOW_CREATE_COMPARISON_FOREIGN_IMAGE }} -c id &> ./comparison.id.log
 
       - name: github / create README.md
         id: github-readme
@@ -409,7 +407,7 @@ jobs:
             git add LICENSE
           fi
           git commit -m "auto update README.md"
-          git push
+          git push origin HEAD:master
 
 
 

.json

@@ -20,6 +20,9 @@
         "11notes/distroless",
         "11notes/distroless:curl"
       ]
+    },
+    "comparison":{
+      "image":"nginx:1.28.0-alpine-slim"
     }
   }
 }

project.md

@@ -9,9 +9,13 @@ ${{ github:> }}* This image does not ship with any critical or high rated CVE an
 ${{ github:> }}* This image is created via a secure, pinned CI/CD process and immune to upstream attacks, most other images have upstream dependencies that can be exploited
 ${{ github:> }}* This image contains a proper health check that verifies the app is actually working, most other images have either no health check or only check if a port is open or ping works
 ${{ github:> }}* This image works as read-only, most other images need to write files to the image filesystem
+${{ github:> }}* This image is a lot smaller than most other images
 
 If you value security, simplicity and the ability to interact with the maintainer and developer of an image. Using my images is a great start in that direction.
 
+${{ content_comparison }}
+
+
 ${{ title_config }}
 ```yaml
 ${{ include: ./rootfs/etc/nginx/nginx.conf }}