Fixed imgbuilder and added cron build trigger

Debian.yaml

@@ -106,6 +106,7 @@ packages:
     action: install
   - packages:
     - nano
+    - xz-utils
     - openssh-server
     action: install
     variants:
@@ -115,12 +116,14 @@ packages:
 #Jenkis Remote pkgs
   - packages:
     - openjdk-11-jre-headless
+    - git
     action: install
     variants:
     - jenkinsbuilder
     - imgbuilder
 #LXCImgBuilder pkgs
   - packages:
+    - sudo
     - fuseiso
     - squashfuse
     - fuse2fs

Jenkinsfile

@@ -3,6 +3,9 @@ String[] ImgVariantList = ['Default-minmal', 'Default-default', 'Extra-imgbuilde
 
 pipeline {
     agent { label 'LXCBuilder' }
+    triggers {
+        cron '@monthly'
+    }
     parameters {
         booleanParam defaultValue: true, description: 'Builds Default images', name: 'BuildDefault'
         booleanParam defaultValue: false, description: 'Builds Extra images', name: 'BuildExtra'