Add ability to disable package uninstalls

Allow users to disable auto-uninstall functionality for packages.

Change-Id: Ib59ff175fc474a592118374c23974c6a9439cd72

divingbell/templates/bin/_apt.sh.tpl

@@ -159,6 +159,7 @@ APT_PURGE="apt-get purge -y --allow-remove-essential"
 APT_PURGE="apt-get purge -y --autoremove"
 {{- end }}
 
+{{- if .Values.manifests.daemonset_apt_remove_old_pkgs }}
 {{- if hasKey .Values.conf.apt "packages" }}
 {{- if .Values.conf.apt.strict }}
 # in strict mode we execute this stage even on first run, so
@@ -229,6 +230,7 @@ if [ ! -z "$INSTALLED_THIS_TIME" ]; then
     sort ${persist_path}/packages -o ${persist_path}/packages
 fi
 {{- end }}
+{{- end }}
 
 ######################################################
 #Stage 4

divingbell/values.yaml

@@ -232,6 +232,7 @@ manifests:
   daemonset_sysctl: true
   daemonset_limits: true
   daemonset_apt: true
+  daemonset_apt_remove_old_pkgs: true
   daemonset_perm: true
   daemonset_exec: true
   daemonset_apparmor: true