mirror of
https://github.com/mulgadc/spinifex.git
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tomnewton-mulga
1b39439cb8
Adds cmd/installer with three packages: - ui: huh-based TUI collecting disk, network, node, and cluster config - install: sequential install steps (partition, debootstrap, chroot, bootloader) - firstboot: oneshot systemd service that runs setup-ovn and spx admin init/join on first real boot Supports both single-node init and multi-node join flows.
122 lines
3.5 KiB
Go
122 lines
3.5 KiB
Go
/*
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Copyright © 2026 Mulga Defense Corporation
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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// Package firstboot writes the oneshot systemd service and configuration that
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// completes Spinifex provisioning on the first real boot after installation.
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package firstboot
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import (
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"fmt"
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"os"
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"path/filepath"
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)
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// Config holds the values the firstboot service needs to configure the node.
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type Config struct {
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Hostname string
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OVNInterface string
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ManagementIP string
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// ClusterRole is "init" or "join".
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ClusterRole string
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// JoinAddr is host:port of the primary node, only used when ClusterRole is "join".
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JoinAddr string
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}
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// Write drops the firstboot script and systemd unit into root, which should be
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// the path of the installed system's root filesystem (e.g. /mnt/spinifex-install).
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func Write(root string, cfg Config) error {
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if err := writeScript(root, cfg); err != nil {
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return fmt.Errorf("firstboot script: %w", err)
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}
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if err := writeUnit(root); err != nil {
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return fmt.Errorf("firstboot unit: %w", err)
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}
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return enableUnit(root)
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}
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func writeScript(root string, cfg Config) error {
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clusterCmd := buildClusterCmd(cfg)
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script := fmt.Sprintf(`#!/bin/bash
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# Spinifex firstboot — runs once after ISO installation, then disables itself.
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set -euo pipefail
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# Set hostname
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hostnamectl set-hostname %s
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# Configure OVN networking
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/usr/local/bin/spinifex-setup-ovn.sh \
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--management \
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--encap-ip=%s \
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--interface=%s
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# Cluster formation
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%s
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# Start services
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systemctl start spinifex.target
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# Disable this service so it never runs again
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systemctl disable spinifex-firstboot.service
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`, cfg.Hostname, cfg.ManagementIP, cfg.OVNInterface, clusterCmd)
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path := filepath.Join(root, "usr/local/bin/spinifex-firstboot.sh")
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return os.WriteFile(path, []byte(script), 0o755)
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}
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func writeUnit(root string) error {
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unit := `[Unit]
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Description=Spinifex first-boot provisioning
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After=network-online.target
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Wants=network-online.target
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ConditionPathExists=/usr/local/bin/spinifex-firstboot.sh
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[Service]
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Type=oneshot
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ExecStart=/usr/local/bin/spinifex-firstboot.sh
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RemainAfterExit=yes
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StandardOutput=journal
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StandardError=journal
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[Install]
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WantedBy=multi-user.target
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`
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path := filepath.Join(root, "etc/systemd/system/spinifex-firstboot.service")
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return os.WriteFile(path, []byte(unit), 0o644)
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}
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func enableUnit(root string) error {
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wantsDir := filepath.Join(root, "etc/systemd/system/multi-user.target.wants")
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if err := os.MkdirAll(wantsDir, 0o755); err != nil {
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return err
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}
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link := filepath.Join(wantsDir, "spinifex-firstboot.service")
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target := "/etc/systemd/system/spinifex-firstboot.service"
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// Remove stale symlink if present.
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_ = os.Remove(link)
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return os.Symlink(target, link)
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}
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func buildClusterCmd(cfg Config) string {
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switch cfg.ClusterRole {
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case "join":
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return fmt.Sprintf("spx admin join --node %s --host %s", cfg.Hostname, cfg.JoinAddr)
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default:
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return fmt.Sprintf("spx admin init --node %s --nodes 1", cfg.Hostname)
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}
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}
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