ImageName should be able to parse image names with IPv6 address literals

jkube-kit/config/image/src/main/java/org/eclipse/jkube/kit/config/image/ImageName.java

@@ -275,7 +275,7 @@ private void doValidate() {
         String user = inferUser();
         String image = user != null ? repository.substring(user.length() + 1) : repository;
         Object[] checks = new Object[] {
-                "registry", DOMAIN_REGEXP, registry,
+                "registry", REGISTRY_REGEXP, registry,
                 "image", IMAGE_NAME_REGEXP, image,
                 "user", NAME_COMP_REGEXP, user,
                 "tag", TAG_REGEXP, tag,
@@ -323,7 +323,7 @@ private void parseComponentsBeforeTag(String rest) {
     }
 
     private boolean isValidDomain(String str) {
-        return containsPeriodOrColon(str) && DOMAIN_REGEXP.matcher(str).matches();
+        return containsPeriodOrColon(str) && REGISTRY_REGEXP.matcher(str).matches();
     }
 
     private boolean isRegistryValidPathComponent() {
@@ -343,6 +343,9 @@ private boolean isRegistryValidPathComponent() {
     // https://github.com/docker/docker/blob/04da4041757370fb6f85510c8977c5a18ddae380/vendor/github.com/docker/distribution/reference/regexp.go#L25
     private static final String DOMAIN_COMPONENT_REGEXP = "(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])";
 
+    //https://github.com/distribution/reference/blob/8507c7fcf0da9f570540c958ea7b972c30eeaeca/regexp.go#L91
+    private static final String IPV6_ADDRESS_REGEXP = "\\[[a-fA-F0-9:]+\\]";
+
     // ==========================================================
 
     // https://github.com/docker/docker/blob/04da4041757370fb6f85510c8977c5a18ddae380/vendor/github.com/docker/distribution/reference/regexp.go#L18
@@ -351,8 +354,13 @@ private boolean isRegistryValidPathComponent() {
     // https://github.com/docker/docker/blob/04da4041757370fb6f85510c8977c5a18ddae380/vendor/github.com/docker/distribution/reference/regexp.go#L53
     private static final Pattern IMAGE_NAME_REGEXP = Pattern.compile(NAME_COMPONENT_REGEXP + "(?:(?:/" + NAME_COMPONENT_REGEXP + ")+)?");
 
+    // https://github.com/distribution/reference/blob/8507c7fcf0da9f570540c958ea7b972c30eeaeca/regexp.go#L65
+    private static final String OPTIONAL_PORT_REGEXP = "(?::[0-9]+)?";
+    private static final String DOMAIN_NAME_REGEXP = DOMAIN_COMPONENT_REGEXP + "(?:\\." + DOMAIN_COMPONENT_REGEXP + ")*";
+    private static final String REGISTRY_HOST_REGEXP = "^(?:" + IPV6_ADDRESS_REGEXP + "|" + DOMAIN_NAME_REGEXP + ")";
+
     // https://github.com/docker/docker/blob/04da4041757370fb6f85510c8977c5a18ddae380/vendor/github.com/docker/distribution/reference/regexp.go#L31
-    private static final Pattern DOMAIN_REGEXP = Pattern.compile("^" + DOMAIN_COMPONENT_REGEXP + "(?:\\." + DOMAIN_COMPONENT_REGEXP + ")*(?::[0-9]+)?$");
+    private static final Pattern REGISTRY_REGEXP = Pattern.compile(REGISTRY_HOST_REGEXP + OPTIONAL_PORT_REGEXP);
 
     // https://github.com/docker/docker/blob/04da4041757370fb6f85510c8977c5a18ddae380/vendor/github.com/docker/distribution/reference/regexp.go#L37
     private static final Pattern TAG_REGEXP = Pattern.compile("^[\\w][\\w.-]{0,127}$");

jkube-kit/config/image/src/test/java/org/eclipse/jkube/kit/config/image/ImageNameDistributionReferenceTest.java

@@ -72,14 +72,14 @@ class ImageNameDistributionReferenceTest {
       "192.168.0.1:8/debian",
       "192.168.0.2:25000/debian",
       "docker.io/1a3f5e7d9c1b3a5f7e9d1c3b5a7f9e1d3c5b7a9f1e3d5d7c9b1a3f5e7d9c1b3a",
-      //"[2001:db8::1]/repo", // https://github.com/eclipse/jkube/issues/2541
-      //"[2001:db8:1:2:3:4:5:6]/repo:tag", // https://github.com/eclipse/jkube/issues/2541
-      //"[2001:db8::1]:5000/repo", // https://github.com/eclipse/jkube/issues/2541
-      //"[2001:db8::1]:5000/repo:tag", // https://github.com/eclipse/jkube/issues/2541
-      //"[2001:db8::1]:5000/repo@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", // https://github.com/eclipse/jkube/issues/2541
-      //"[2001:db8::1]:5000/repo:tag@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", // https://github.com/eclipse/jkube/issues/2541
-      //"[2001:db8::]:5000/repo", // https://github.com/eclipse/jkube/issues/2541
-      //"[::1]:5000/repo", // https://github.com/eclipse/jkube/issues/2541
+      "[2001:db8::1]/repo",
+      "[2001:db8:1:2:3:4:5:6]/repo:tag",
+      "[2001:db8::1]:5000/repo",
+      "[2001:db8::1]:5000/repo:tag",
+      "[2001:db8::1]:5000/repo@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+      "[2001:db8::1]:5000/repo:tag@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+      "[2001:db8::]:5000/repo",
+      "[::1]:5000/repo", 
   })
   void validNames(String name) {
     // Given

jkube-kit/config/image/src/test/java/org/eclipse/jkube/kit/config/image/ImageNameORASReferenceTest.java

@@ -42,7 +42,7 @@ class ImageNameORASReferenceTest {
       "registry.example.com/hello-world:v2@sha256:b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9",
       "localhost:5000/hello-world:v2@sha256:b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9",
       "127.0.0.1:5000/hello-world:v2@sha256:b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9",
-      //"[::1]:5000/hello-world:v1", // https://github.com/eclipse/jkube/issues/2541
+      "[::1]:5000/hello-world:v1",
       //"registry.example.com/hello-world:@sha256:b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9", // https://github.com/eclipse/jkube/issues/2545
   })
   void validImageNamesCompatibleWithAll(String name) {