Adolfo Delorenzo
d900fa920e
Implement a lightweight cloud-init system for first-boot configuration: - Go parser for YAML config (hostname, network, KubeSolo settings) - Static/DHCP network modes with DNS override - KubeSolo extra flags and API server SAN configuration - Portainer Edge Agent and air-gapped deployment support - New init stage 45-cloud-init.sh runs before network/hostname stages - Stages 50/60 skip gracefully when cloud-init has already applied - Build script compiles static Linux/amd64 binary (~2.7 MB) - 17 unit tests covering parsing, validation, and example files - Full documentation at docs/cloud-init.md Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
35 lines
1.1 KiB
Bash
Executable File
35 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# 60-hostname.sh — Set system hostname
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# If cloud-init (stage 45) already set the hostname, skip this stage.
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# Cloud-init writes /etc/hostname and saves to data partition
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if [ "$CLOUDINIT_APPLIED" = "1" ] && [ -f /etc/hostname ]; then
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HOSTNAME="$(cat /etc/hostname)"
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if [ -n "$HOSTNAME" ]; then
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log "Hostname already set by cloud-init: $HOSTNAME"
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return 0
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fi
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fi
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if [ -f "$DATA_MOUNT/etc-kubesolo/hostname" ]; then
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HOSTNAME="$(cat "$DATA_MOUNT/etc-kubesolo/hostname")"
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elif [ -f /etc/kubesolo/hostname ]; then
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HOSTNAME="$(cat /etc/kubesolo/hostname)"
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else
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# Generate hostname from MAC address of primary interface
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MAC_SUFFIX=""
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for iface in /sys/class/net/*; do
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iface="$(basename "$iface")"
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case "$iface" in lo|docker*|veth*|br*|cni*) continue ;; esac
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MAC_SUFFIX="$(cat "/sys/class/net/$iface/address" 2>/dev/null | tr -d ':' | tail -c 7)"
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break
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done
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HOSTNAME="kubesolo-${MAC_SUFFIX:-unknown}"
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fi
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hostname "$HOSTNAME"
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echo "$HOSTNAME" > /etc/hostname
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echo "127.0.0.1 $HOSTNAME" >> /etc/hosts
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log_ok "Hostname set to: $HOSTNAME"
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