Allow to prefix deployed images into nested

This allows to escape the tag length limit of 128
and better organise images from different architectures

scripts/lib/custom-docker.sh

@@ -1,12 +1,29 @@
-TOOLS=(DEBIAN RUBY BUNDLER GOLANG GIT LFS CHROME NODE YARN POSTGRESQL GRAPHICSMAGICK PGBOUNCER BAZELISK DOCKER GCLOUD KUBECTL)
+PATH_TOOLS=()
+TAG_TOOLS=(DEBIAN RUBY BUNDLER GOLANG GIT LFS CHROME NODE YARN POSTGRESQL GRAPHICSMAGICK PGBOUNCER BAZELISK DOCKER GCLOUD KUBECTL)
 
-function get_image_name(){
-    local IMAGE_NAME
-    IMAGE_NAME=""
-    for tool in "${TOOLS[@]}"; do
-        if [ -n "${!tool}" ]; then
-            IMAGE_NAME="${IMAGE_NAME}-${tool,,}-${!tool}"
+function get_image_path() {
+    local path
+    path=""
+    for tool in "${PATH_TOOLS[@]}"; do
+        if [[ -n "${!tool}" ]]; then
+            path="${path}-${tool,,}-${!tool}"
         fi
     done
-    echo "${IMAGE_NAME:1}"
+
+    if [[ -n "$path" ]]; then
+        echo "$CI_REGISTRY_IMAGE/${path:1}"
+    else
+        echo "$CI_REGISTRY_IMAGE"
+    fi
+}
+
+function get_image_tag() {
+    local tag
+    tag=""
+    for tool in "${TAG_TOOLS[@]}"; do
+        if [[ -n "${!tool}" ]]; then
+            tag="${tag}-${tool,,}-${!tool}"
+        fi
+    done
+    echo "${tag:1}"
 }