dont get fancy just run bash and git clone

Dockerfile

@@ -1,3 +1,7 @@
 FROM docker:24.0.7-dind-alpine3.18
 
 RUN apk update && apk --no-cache add bash curl git
+
+COPY ./entrypoint.sh /bin/entrypoint.sh
+RUN chmod +x /bin/entrypoint.sh
+ENTRYPOINT ["/bin/entrypoint.sh"]

build.sh

@@ -1,6 +1,10 @@
 #! /bin/sh
 
+img=registry-app.inhome.blapointe.com:5001/docker
+t=latest
+docker rmi $img:$t
+
 set -e
 
-docker build -f ./Dockerfile -t registry-app.inhome.blapointe.com:5001/docker:latest .
-docker push registry-app.inhome.blapointe.com:5001/docker:latest
+docker build -f ./Dockerfile -t $img:$t --progress plain .
+docker push $img:$t

entrypoint.sh

@@ -0,0 +1,10 @@
+#! /bin/sh
+
+set -e
+
+if [ -n "$GITHUB_SERVER_URL" ] && [ -n "$GITHUB_REPOSITORY" ]; then
+   git clone "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY" ./git.d
+   cd ./git.d
+fi
+
+exec bash "$@"