fix: strip architecture suffix from Kafka image tags for semver parsing

Newer Kafka Docker images include architecture suffixes in their tags
(e.g. 7.5.0.arm64), which are not valid semver. This change normalises
the tag by removing the architecture suffix before passing it to the
semver parser, ensuring compatibility with golang.org/x/mod/semver.

Author: asahasrabuddhe

modules/kafka/kafka.go

@@ -212,6 +212,11 @@ func validateKRaftVersion(fqName string) error {
 		version = "v" + version
 	}
 
+	// remove the architecture suffix
+	if strings.HasSuffix(version, ".amd64") || strings.HasSuffix(version, ".arm64") {
+		version = version[:strings.LastIndex(version, ".")]
+	}
+
 	if semver.Compare(version, "v7.4.0") < 0 { // version < v7.4.0
 		return fmt.Errorf("version=%s. KRaft mode is only available since version 7.4.0", version)
 	}

modules/kafka/kafka_helpers_test.go

@@ -93,6 +93,16 @@ func TestValidateKRaftVersion(t *testing.T) {
 			image:   "my-kafka:1.0.0",
 			wantErr: false,
 		},
+		{
+			name:    "Official: valid, with the amd64 architecture suffix",
+			image:   "confluentinc/confluent-local:7.5.9.amd64",
+			wantErr: false,
+		},
+		{
+			name:    "Official: valid, with the arm64 architecture suffix",
+			image:   "confluentinc/confluent-local:7.5.9.arm64",
+			wantErr: false,
+		},
 	}
 
 	for _, test := range tests {