Added Temp variant for buildng apk PKGS

Added x86_64 to Alpine Arch list
Added jenkinsAPKbuilder to alpine with the following:
* Packages required for Jenkins-agent
* Packages required for Alpine package development
* Added BuildNode public ssh key

distros/Alpine318.yaml

@@ -172,6 +172,18 @@ packages:
     variants:
     - default
 
+  #PKGS for jenkinsAPKbuilder
+  - packages:
+    - nano
+    - openssh-server
+    - openjdk17-jre-headless
+    - git
+    - doas
+    - doas-sudo-shim
+    - alpine-sdk
+    action: install
+    variants:
+    - jenkinsAPKbuilder
 
   repositories:
   - name: /etc/apk/repositories
@@ -208,5 +220,23 @@ actions:
     echo "Europe/Amsterdam" > /etc/timezone
     ln -s /usr/share/zoneinfo/Europe/Amsterdam /etc/localtime
 
+- trigger: post-packages
+  action: |-
+    #!/bin/sh
+    adduser --disabled-password --gecos "" jenkins
+    passwd jenkins -d $(openssl rand -base64 64)
+    addgroup jenkins abuild
+    chgrp abuild /var/cache/distfiles
+    chmod g+w /var/cache/distfiles
+    echo "permit nopass root" > /etc/doas.d/jenkinsAPKbuilder.conf
+    echo "permit nopass jenkins" >> /etc/doas.d/jenkinsAPKbuilder.conf
+    chmod 0600 /etc/doas.d/jenkinsAPKbuilder.conf
+    doas -u jenkins abuild-keygen -a -i -n
+    rc-update add sshd
+    doas -u jenkins  mkdir -p /home/jenkins/.ssh
+    doas -u jenkins echo "ssh-rsa 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 BuilderNodes@Jenkins" > /home/jenkins/.ssh/authorized_keys 
+  variants:
+  - jenkinsAPKbuilder
+
 mappings:
   architecture_map: alpinelinux