Track LXC container configs and fix network-interfaces

- proxmox/lxc/103.conf: Pi-hole LXC (firewall=0 to fix NAT via fwbr)
- proxmox/lxc/104.conf: Traefik LXC
- proxmox/network-interfaces: Proxmox network config with DNAT/MASQUERADE
  rules; fixes tpost-up typo so DNS DNAT persists across reboots

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Adyrem
2026-05-15 19:52:43 +02:00
parent 62e5027d24
commit d1d38df0e4
3 changed files with 80 additions and 0 deletions
+12
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arch: amd64
cores: 1
features: nesting=1
hostname: pihole
memory: 512
nameserver: 8.8.8.8
net0: name=eth0,bridge=vmbr1,firewall=0,gw=10.10.1.1,hwaddr=BC:24:11:D6:DD:FF,ip=10.10.1.2/24,type=veth
onboot: 1
ostype: debian
rootfs: local-zfs:subvol-103-disk-0,size=4G
swap: 0
unprivileged: 1
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arch: amd64
cores: 1
hostname: traefik
memory: 256
nameserver: 10.10.1.2
net0: name=eth0,bridge=vmbr1,firewall=1,gw=10.10.1.1,hwaddr=BC:24:11:8E:D3:36,ip=10.10.1.3/24,type=veth
onboot: 1
ostype: debian
rootfs: local-zfs:subvol-104-disk-0,size=2G
swap: 0
unprivileged: 1
[pve:pending]
nameserver: 8.8.8.8
+54
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auto lo
iface lo inet loopback
iface nic0 inet manual
auto vmbr0
iface vmbr0 inet static
address 192.168.1.10/24
gateway 192.168.1.1
bridge-ports nic0
bridge-stp off
bridge-fd 0
post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 80 -j DNAT --to-destination 10.10.1.3:80
post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 443 -j DNAT --to-destination 10.10.1.3:443
post-down iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 80 -j DNAT --to-destination 10.10.1.3:80
post-down iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 443 -j DNAT --to-destination 10.10.1.3:443
post-up iptables -t nat -A PREROUTING -i vmbr0 -p udp --dport 53 -j DNAT --to-destination 10.10.1.2:53
post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 53 -j DNAT --to-destination 10.10.1.2:53
post-up iptables -t nat -A POSTROUTING -p udp -d 10.10.1.2 --dport 53 -j MASQUERADE
post-up iptables -t nat -A POSTROUTING -p tcp -d 10.10.1.2 --dport 53 -j MASQUERADE
post-down iptables -t nat -D PREROUTING -i vmbr0 -p udp --dport 53 -j DNAT --to-destination 10.10.1.2:53
post-down iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 53 -j DNAT --to-destination 10.10.1.2:53
post-down iptables -t nat -D POSTROUTING -p udp -d 10.10.1.2 --dport 53 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -p tcp -d 10.10.1.2 --dport 53 -j MASQUERADE
source /etc/network/interfaces.d/*
auto vmbr1
iface vmbr1 inet static
address 10.10.1.1/24
bridge-ports none
bridge-stp off
bridge-fd 0
post-up iptables -t nat -A POSTROUTING -s 10.10.1.0/24 -o vmbr0 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -s 10.10.1.0/24 -o vmbr0 -j MASQUERADE
auto vmbr2
iface vmbr2 inet static
address 10.10.2.1/24
bridge-ports none
bridge-stp off
bridge-fd 0
post-up iptables -t nat -A POSTROUTING -s 10.10.2.0/24 -o vmbr0 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -s 10.10.2.0/24 -o vmbr0 -j MASQUERADE
auto vmbr3
iface vmbr3 inet static
address 10.10.3.1/24
bridge-ports none
bridge-stp off
bridge-fd 0
post-up iptables -t nat -A POSTROUTING -s 10.10.3.0/24 -o vmbr0 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -s 10.10.3.0/24 -o vmbr0 -j MASQUERADE