Added uninstall feature

Jenkinsfile

@@ -7,6 +7,11 @@ pipeline {
             defaultValue: '',
             description: 'Limit to specific hosts or groups (e.g., "vms", "lxcs", "zabbix_targets", or hostname) no .lan required'
         )
+        booleanParam(
+            name: 'UNINSTALL',
+            defaultValue: false,
+            description: 'Remove Zabbix agent2 and purge configuration from target hosts'
+        )
         booleanParam(
             name: 'DRY_RUN',
             defaultValue: false,
@@ -43,6 +48,7 @@ pipeline {
                 script {
                     def limitFlag = params.LIMIT ? "--limit '${params.LIMIT}'" : ''
                     def checkFlag = params.DRY_RUN ? '--check --diff' : ''
+                    def stateVar = params.UNINSTALL ? '-e "zabbix_state=absent"' : ''
 
                     sh """
                         ansible-playbook \
@@ -50,6 +56,7 @@ pipeline {
                             playbooks/install_zabbix.yml \
                             ${limitFlag} \
                             ${checkFlag} \
+                            ${stateVar} \
                             -v
                     """
                 }
@@ -59,10 +66,10 @@ pipeline {
 
     post {
         success {
-            echo "Zabbix agent installation completed successfully"
+            echo "Zabbix agent ${params.UNINSTALL ? 'removal' : 'installation'} completed successfully"
         }
         failure {
-            echo "Zabbix agent installation failed"
+            echo "Zabbix agent ${params.UNINSTALL ? 'removal' : 'installation'} failed"
         }
     }
 }