[Build] Update krb5kdc ubuntu base image to 24.04

Updating to newer ubuntu version hopefully makes test fixture build more robust;
Furthermore we use same base image in other fixtures too

Author: breskeby

test/fixtures/krb5kdc-fixture/Dockerfile

@@ -1,9 +1,9 @@
-FROM ubuntu:14.04
+FROM ubuntu:24.04
 ADD . /fixture
 RUN echo kerberos.build.elastic.co > /etc/hostname
 RUN bash /fixture/src/main/resources/provision/installkdc.sh
 
 EXPOSE 88
 EXPOSE 88/udp
 
-CMD sleep infinity
+CMD ["sleep", "infinity"]

test/fixtures/krb5kdc-fixture/build.gradle

@@ -16,8 +16,8 @@ apply plugin: 'elasticsearch.deploy-test-fixtures'
 dockerFixtures {
   krb5dc {
     dockerContext = projectDir
-    version = "1.0"
-    baseImages = ["ubuntu:14.04"]
+    version = "1.1"
+    baseImages = ["ubuntu:24.04"]
   }
 }
 

test/fixtures/krb5kdc-fixture/src/main/java/org/elasticsearch/test/fixtures/krb5kdc/Krb5kDcContainer.java

@@ -29,7 +29,7 @@
 import java.util.List;
 
 public final class Krb5kDcContainer extends DockerEnvironmentAwareTestContainer {
-    public static final String DOCKER_BASE_IMAGE = "docker.elastic.co/elasticsearch-dev/krb5dc-fixture:1.0";
+    public static final String DOCKER_BASE_IMAGE = "docker.elastic.co/elasticsearch-dev/krb5dc-fixture:1.1";
     private final TemporaryFolder temporaryFolder = new TemporaryFolder();
     private final ProvisioningId provisioningId;
     private Path krb5ConfFile;