feat: add custom registry option

README.md

@@ -101,5 +101,7 @@ CLUSTER_EXTRA_NODES="
 
 ## Private Registry
 
-An access to a private registry is possible with the environment variables :` $CI_REGISTRY` `$CI_REGISTRY_USER` and `$CI_REGISTRY_PASSWORD`.
-For GitLab, the variables are predifined.
+An access to GitLab private registry is possible with the environment variables :`$CI_REGISTRY` `$CI_REGISTRY_USER` and `$CI_REGISTRY_PASSWORD`.
+the variables are predefined.
+
+For a custom private registry, an access is possible by providing the variables : `$CI_CUSTOM_REGISTRY` `$CI_CUSTOM_REGISTRY_USER` and `$CI_CUSTOM_REGISTRY_PASSWORD`.

docker/24-dind/entrypoint.sh

@@ -24,6 +24,11 @@ if [ -n "$CI_REGISTRY" ] && [ -n "$CI_REGISTRY_USER" ] && [ -n "$CI_REGISTRY_PAS
     docker login $CI_REGISTRY -u "${CI_REGISTRY_USER}" -p "${CI_REGISTRY_PASSWORD}"
 fi
 
+if [ -n "$CI_CUSTOM_REGISTRY" ] && [ -n "$CI_CUSTOM_REGISTRY_USER" ] && [ -n "$CI_CUSTOM_REGISTRY_PASSWORD" ]; then
+    echo "Logging to ${CI_CUSTOM_REGISTRY} with user ${CI_REGISTRY_USER}"
+    docker login $CI_CUSTOM_REGISTRY -u "${CI_CUSTOM_REGISTRY_USER}" -p "${CI_CUSTOM_REGISTRY_PASSWORD}"
+fi
+
 if [ -z "$CLUSTER_NAME" ]; then
     export CLUSTER_NAME="kind"
     echo "Defaulting cluster name to ${CLUSTER_NAME}"