Update .gitlab-ci.yml: push the image to Gitea as well

Signed-off-by: Fifo F <34-fifo@users.noreply.git.fifo-f.eu>

.gitlab-ci.yml

@@ -8,10 +8,11 @@ cache:
     - /usr/local/texlive
 
 variables:
-  IMAGE_NAME: ${CI_REGISTRY}/${CI_PROJECT_PATH}/sharelatex-with-texlive-full
+  IMAGE_NAME: sharelatex-with-texlive-full
   ARCHIVED_IMAGE: sharelatex_with_texlive_full.tar
   TEXLIVE_REPO: https://ftp.tu-chemnitz.de/pub/tex/systems/texlive/tlnet/
   IMAGE_ENTRYPOINT: "/sbin/my_init"
+  GITEA_IMAGE_NAME: ${GITEA_REGISTRY}/tex-projects/${IMAGE_NAME}
 
 build:
   stage: build
@@ -60,8 +61,16 @@ push:
     - OVERLEAF_VERSION=$(cat version.txt)
     - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_USER --password-stdin $CI_REGISTRY
     - docker load -i $ARCHIVED_IMAGE
-    - docker push $IMAGE_NAME:$OVERLEAF_VERSION
+    - docker tag ${IMAGE_NAME}:${OVERLEAF_VERSION} ${CI_REGISTRY}/${CI_PROJECT_PATH}/${IMAGE_NAME}:${OVERLEAF_VERSION}
-    - docker push $IMAGE_NAME:latest
+    - docker tag ${IMAGE_NAME}:latest ${CI_REGISTRY}/${CI_PROJECT_PATH}/${IMAGE_NAME}:latest
+    - docker push ${CI_REGISTRY}/${CI_PROJECT_PATH}/${IMAGE_NAME}:${OVERLEAF_VERSION}
+    - docker push ${CI_REGISTRY}/${CI_PROJECT_PATH}/${IMAGE_NAME}:latest
+
+    - echo $GITEA_REGISTRY_PASSWORD | docker login -u $GITEA_REGISTRY_USER --password-stdin $GITEA_REGISTRY
+    - docker tag ${IMAGE_NAME}:${OVERLEAF_VERSION} ${GITEA_IMAGE_NAME}:${OVERLEAF_VERSION}
+    - docker tag ${IMAGE_NAME}:latest ${GITEA_IMAGE_NAME}:latest
+    - docker push ${GITEA_IMAGE_NAME}:${OVERLEAF_VERSION}
+    - docker push ${GITEA_IMAGE_NAME}:latest
 
   artifacts:
     paths: