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Update provisioning documentation and scripts for improved Proxmox deployment</message>

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<message>Add a new step-by-step guide for deploying the CM4 eMMC provisioning service on a new Proxmox instance, enhancing clarity for users. Update existing documentation to reflect changes in network configuration options, including the introduction of LAN subnet settings for DHCP and TFTP. Modify cloud-init scripts to ensure proper management of DNS settings and improve the handling of network interfaces. Additionally, enhance the toggle script for network boot to dynamically read the LAN gateway from configuration files, streamlining the setup process and improving user experience.
This commit is contained in:
nearxos
2026-03-03 08:24:18 +02:00
parent 7dd9f2b74f
commit 123fd8748e
16 changed files with 500 additions and 33 deletions
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30
emmc-provisioning/scripts/setup-network-boot-on-lxc.sh
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@@ -25,7 +25,17 @@ if [[ -n "$TARGET" ]]; then
fi
# --- Running inside the LXC from here ---
echo "Configuring network boot (DHCP + TFTP on eth1, NAT via eth0) ..."
# LAN subnet: use /opt/cm4-provisioning/lan-subnet.conf (written by deploy-to-proxmox.sh when DEPLOY_LXC_LAN_SUBNET is set)
LAN_CONF="/opt/cm4-provisioning/lan-subnet.conf"
if [[ -f "$LAN_CONF" ]]; then
source "$LAN_CONF"
else
LAN_GW="10.20.50.1"
LAN_CIDR="10.20.50.0/24"
DHCP_RANGE_START="10.20.50.100"
DHCP_RANGE_END="10.20.50.200"
fi
echo "Configuring network boot (DHCP + TFTP on eth1, NAT via eth0) — LAN $LAN_CIDR (gateway $LAN_GW), DHCP ${DHCP_RANGE_START}-${DHCP_RANGE_END} ..."
# 1) Install dnsmasq
if ! command -v dnsmasq >/dev/null 2>&1; then
@@ -34,12 +44,12 @@ fi
# 2) dnsmasq config for eth1 only (DHCP + TFTP); PXE options in network-boot-pxe.conf (toggle with toggle-network-boot-dhcp.sh)
mkdir -p /etc/dnsmasq.d
cat > /etc/dnsmasq.d/network-boot.conf << 'DNSMASQ'
cat > /etc/dnsmasq.d/network-boot.conf << DNSMASQ
# DHCP on eth1 only (provisioning LAN)
# TFTP and PXE options are in network-boot-pxe.conf, controlled by toggle-network-boot-dhcp.sh
interface=eth1
bind-interfaces
dhcp-range=10.20.50.100,10.20.50.200,12h
dhcp-range=${DHCP_RANGE_START},${DHCP_RANGE_END},12h
log-dhcp
log-queries
port=0
@@ -89,14 +99,14 @@ fi
echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/99-cm4-network-boot.conf
sysctl -p /etc/sysctl.d/99-cm4-network-boot.conf 2>/dev/null || sysctl -w net.ipv4.ip_forward=1
# 5) NAT: 10.20.50.0/24 -> eth0 (masquerade)
# 5) NAT: LAN subnet -> eth0 (masquerade)
if command -v nft >/dev/null 2>&1; then
mkdir -p /etc/nftables.d
cat > /etc/nftables.d/nat-lan.conf << 'NFT'
cat > /etc/nftables.d/nat-lan.conf << NFT
table ip nat {
chain postrouting {
type nat hook postrouting priority srcnat; policy accept;
ip saddr 10.20.50.0/24 oifname "eth0" masquerade
ip saddr ${LAN_CIDR} oifname "eth0" masquerade
}
}
NFT
@@ -110,8 +120,8 @@ NFT
echo "NAT rule added (nftables) and saved to /etc/nftables.d/nat-lan.conf"
else
# Fallback iptables
iptables -t nat -C POSTROUTING -s 10.20.50.0/24 -o eth0 -j MASQUERADE 2>/dev/null || \
iptables -t nat -A POSTROUTING -s 10.20.50.0/24 -o eth0 -j MASQUERADE
iptables -t nat -C POSTROUTING -s "${LAN_CIDR}" -o eth0 -j MASQUERADE 2>/dev/null || \
iptables -t nat -A POSTROUTING -s "${LAN_CIDR}" -o eth0 -j MASQUERADE
echo "NAT rule added (iptables)."
fi
@@ -120,6 +130,6 @@ systemctl enable dnsmasq
systemctl restart dnsmasq
echo "Network boot setup done."
echo " - DHCP + TFTP on eth1 (10.20.50.1), range 10.20.50.100-200"
echo " - NAT: 10.20.50.0/24 -> eth0 (internet)"
echo " - DHCP + TFTP on eth1 ($LAN_GW), range ${DHCP_RANGE_START}-${DHCP_RANGE_END}"
echo " - NAT: ${LAN_CIDR} -> eth0 (internet)"
echo " - TFTP root: /srv/tftpboot (RPi boot files; initrd.img if provided)"