Allow specifying Java version for remote Maven execution

Closes #46321

Signed-off-by: Peter Zaoral <pzaoral@redhat.com>

.github/scripts/ansible/roles/keycloak_remote_installer/defaults/main.yml

@@ -3,4 +3,6 @@ kc_home: /opt/keycloak
 m2_home: ~/.m2
 update_system_packages: no
 install_java: yes
-java_version: 25
+java_version:
+  - 25
+  - 21  # TODO: Remove once Keycloak 24 is no longer used for migration tests

.github/scripts/ansible/roles/keycloak_remote_installer/tasks/install.yml

@@ -10,25 +10,27 @@
     update_cache: yes
 
 
-- name: Install Java {{ java_version }} packages on Ubuntu/Debian
+- name: Install Java {{ item }} packages on Ubuntu/Debian
   when:
     - install_java
     - ansible_os_family == 'Debian'
   package:
     name:
-      - "openjdk-{{ java_version }}-jdk"
-      - "openjdk-{{ java_version }}-jre"
+      - "openjdk-{{ item }}-jdk"
+      - "openjdk-{{ item }}-jre"
     state: present
+  loop: "{{ [java_version] | flatten }}"
 
-- name: Install Java {{ java_version }} packages on RedHat/Amazon
+- name: Install Java {{ item }} packages on RedHat/Amazon
   when:
     - install_java
     - ansible_os_family != 'Debian'
   package:
     name:
-      - "java-{{ java_version }}-openjdk"
-      - "java-{{ java_version }}-openjdk-devel"
+      - "java-{{ item }}-openjdk"
+      - "java-{{ item }}-openjdk-devel"
     state: present
+  loop: "{{ [java_version] | flatten }}"
 
 - name: Install dependencies on the remote hosts
   package: name={{item}} state=present

.github/scripts/ansible/roles/mvn_remote_runner/tasks/run.yml

@@ -16,6 +16,14 @@
   ansible.builtin.shell: |
     set -o pipefail
     cd {{ kc_home }}
+    {% if lookup('env', 'JAVA_VERSION') != "" %}
+    {% if ansible_os_family == 'Debian' %}
+    export JAVA_HOME=/usr/lib/jvm/java-{{ lookup('env', 'JAVA_VERSION') }}-openjdk-amd64
+    {% else %}
+    export JAVA_HOME=/usr/lib/jvm/java-{{ lookup('env', 'JAVA_VERSION') }}-openjdk
+    {% endif %}
+    echo "Using JAVA_HOME: ${JAVA_HOME}"
+    {% endif %}
     echo "{{ mvn_params }}"
     ./mvnw {{ mvn_params }}
   args:

.github/workflows/ci.yml

@@ -515,6 +515,7 @@ jobs:
         id: aurora-migration-tests
         env:
           old-version: 24.0.4
+          JAVA_VERSION: 21 # Keycloak 24 is not compatible with Java 25+
         run: |
           EC2_CLUSTER_NAME=${{ steps.ec2-create.outputs.ec2_cluster }}
           AWS_REGION=${{ steps.aurora-init.outputs.region }}
@@ -723,10 +724,11 @@ jobs:
         id: azure-migration-build
         env:
           old-version: 24.0.4
+          JAVA_VERSION: 21 # Keycloak 24 is not compatible with Java 25+
         run: |
           AZ_VM_CLUSTER_NAME=${{ steps.vm-create.outputs.az_vm_cluster }}
           AZURE_REGION=${{ steps.azure-init.outputs.region }}
-          
+
           cd .github/scripts/ansible
           ./mvn_remote_runner.sh ${AZURE_REGION} ${AZ_VM_CLUSTER_NAME} 'clean install -B -DskipTests -pl testsuite/integration-arquillian/servers/migration -Pauth-server-migration -Dmigrated.auth.server.version=${{ env.old-version }} -Dmaven.build.cache.enabled=true -Pdb-mssql-azure -Dkeycloak.connectionsJpa.user=${{ steps.azure-create.outputs.username }} -Dkeycloak.connectionsJpa.password="${{ env.AZURE_DB_PASSWORD }}" -Dkeycloak.connectionsJpa.database=${{ steps.azure-create.outputs.db }} -Dkeycloak.connectionsJpa.url="jdbc:sqlserver://${{ steps.azure-create.outputs.endpoint }}:1433;databaseName=${{ steps.azure-create.outputs.db }};encrypt=true;trustServerCertificate=false;sendStringParametersAsUnicode=false" -Djdbc.driver.tmp.dir=target/unpacked/keycloak-${{ env.old-version }}/providers'
 
@@ -734,6 +736,7 @@ jobs:
         id: azure-migration-tests
         env:
           old-version: 24.0.4
+          JAVA_VERSION: 21 # Keycloak 24 is not compatible with Java 25+
         run: |
           AZ_VM_CLUSTER_NAME=${{ steps.vm-create.outputs.az_vm_cluster }}
           AZURE_REGION=${{ steps.azure-init.outputs.region }}
@@ -749,10 +752,11 @@ jobs:
         id: azure-integration-build
         env:
           old-version: 24.0.4
+          JAVA_VERSION: 21 # Keycloak 24 is not compatible with Java 25+
         run: |
           AZ_VM_CLUSTER_NAME=${{ steps.vm-create.outputs.az_vm_cluster }}
           AZURE_REGION=${{ steps.azure-init.outputs.region }}
-          
+
           cd .github/scripts/ansible
           ./mvn_remote_runner.sh ${AZURE_REGION} ${AZ_VM_CLUSTER_NAME} 'clean install -B -DskipTests -pl testsuite/integration-arquillian/servers/migration -Pauth-server-migration -Dmigrated.auth.server.version=${{ env.old-version }} -Dmaven.build.cache.enabled=true -Pdb-mssql-azure -Dkeycloak.connectionsJpa.user=${{ steps.azure-create.outputs.username }} -Dkeycloak.connectionsJpa.password="${{ env.AZURE_DB_PASSWORD }}" -Dkeycloak.connectionsJpa.database=${{ steps.azure-create.outputs.db }} -Dkeycloak.connectionsJpa.url="jdbc:sqlserver://${{ steps.azure-create.outputs.endpoint }}:1433;databaseName=${{ steps.azure-create.outputs.db }};encrypt=true;trustServerCertificate=false;sendStringParametersAsUnicode=false" -Djdbc.driver.tmp.dir=target/unpacked/keycloak-${{ env.old-version }}/providers'