From ac9927528eedbecfebfff4f1d3fee9b804b01ae4 Mon Sep 17 00:00:00 2001
From: Dario B <github@mailhub.it>
Date: Tue, 14 Nov 2023 20:37:21 +0100
Subject: [PATCH] layer optimi[s|z]ations

---
 Dockerfile | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 9605fec..8d8b432 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,15 +27,19 @@ RUN wget https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg -O /
 
 RUN apt-get update && \
     apt-get install initramfs-tools && \
+    rm -rf /var/lib/apt/lists/* /tmp/* && \
     echo '#!/bin/bash' > /usr/sbin/update-initramfs && \
     echo 'exit 0' >> /usr/sbin/update-initramfs && \
     chmod +x /usr/sbin/update-initramfs
 
+RUN apt-get update && \
+    apt-get install $(apt-cache depends proxmox-ve|awk '{print $2}'|while read x;do apt-cache depends $x 2>/dev/null|grep Depends|awk '{print $2}'|grep ^[[:alnum:]];done|sort|uniq|egrep -v "pve|proxmox|ifenslave|ifupdown2|qemu-server"|xargs) && \
+    rm -rf /var/lib/apt/lists/* /tmp/*
+
 # repacked proxmox-ve & pve-manager
 RUN apt-get update && \
     rm -f /etc/apt/apt.conf.d/docker-clean && \
     apt-get install proxmox-ve || echo ok && \
-    apt-get install proxmox-backup-restore-image || echo ok && \
     PVE_PKG="pve-manager" && \
     PVE_VER="$(ls /var/cache/apt/archives/${PVE_PKG}_*.deb|awk -F_ '{print $2}')" && \
     PVE_DEB1="${PVE_PKG}_${PVE_VER}_amd64.deb" && \
@@ -59,9 +63,15 @@ RUN apt-get update && \
     dpkg -i /tmp/${PVE_DEB2} && \
     echo '#!/bin/sh' > /etc/kernel/postrm.d/zz-proxmox-boot && \
     echo 'exit 0' >> /etc/kernel/postrm.d/zz-proxmox-boot && \
-    apt-get remove ifupdown2 && \
+    apt-mark hold proxmox-ve && \
+    apt-mark hold pve-manager && \
+    rm -f /etc/apt/apt.conf.d/*pve* /etc/kernel/postinst.d/* && \
+    echo '#!/bin/sh' > /var/lib/dpkg/info/ifupdown2.postinst && \
+    echo 'exit 0' >> /var/lib/dpkg/info/ifupdown2.postinst && \
     apt-get -f install && \
     apt-get autoremove --purge && \
+    apt-get purge ifupdown2 && \
+    apt-get install proxmox-backup-restore-image && \
     rm -rf /var/lib/apt/lists/* /tmp/* && \
     rm -f /etc/apt/sources.list.d/pve-enterprise.list