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- netboot-base.nix with SSH key auth - Launch scripts for node01/02/03 - Node configuration.nix and disko.nix - Nix modules for first-boot automation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
89 lines
2.9 KiB
Bash
Executable file
89 lines
2.9 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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# bootstrap-detector.sh - Detects if node should bootstrap or join cluster
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# Usage: bootstrap-detector.sh [config_file]
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#
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# Arguments:
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# config_file - Path to cluster-config.json (default: /etc/nixos/secrets/cluster-config.json)
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#
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# Returns:
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# 0 - Node should bootstrap (initialize new cluster)
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# 1 - Node should join existing cluster
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# 2 - Error (invalid config or missing file)
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CONFIG_FILE="${1:-/etc/nixos/secrets/cluster-config.json}"
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FIRST_BOOT_MARKER="/var/lib/first-boot-automation/.initialized"
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# Logging function with JSON output
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log() {
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local level="$1"
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local message="$2"
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local timestamp
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timestamp=$(date -Iseconds)
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echo "{\"timestamp\":\"$timestamp\",\"level\":\"$level\",\"component\":\"bootstrap-detector\",\"message\":\"$message\"}" >&2
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}
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# Validate config file exists
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if [[ ! -f "$CONFIG_FILE" ]]; then
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log "ERROR" "Configuration file not found: $CONFIG_FILE"
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exit 2
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fi
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# Parse JSON config
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log "INFO" "Reading configuration from $CONFIG_FILE"
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if ! CONFIG_JSON=$(cat "$CONFIG_FILE"); then
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log "ERROR" "Failed to read configuration file"
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exit 2
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fi
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# Extract bootstrap flag using jq (fallback to grep if jq not available)
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if command -v jq &> /dev/null; then
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BOOTSTRAP=$(echo "$CONFIG_JSON" | jq -r '.bootstrap // false')
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NODE_ID=$(echo "$CONFIG_JSON" | jq -r '.node_id // "unknown"')
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NODE_ROLE=$(echo "$CONFIG_JSON" | jq -r '.node_role // "unknown"')
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else
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# Fallback to grep/sed for minimal environments
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BOOTSTRAP=$(echo "$CONFIG_JSON" | grep -oP '"bootstrap"\s*:\s*\K(true|false)' || echo "false")
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NODE_ID=$(echo "$CONFIG_JSON" | grep -oP '"node_id"\s*:\s*"\K[^"]+' || echo "unknown")
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NODE_ROLE=$(echo "$CONFIG_JSON" | grep -oP '"node_role"\s*:\s*"\K[^"]+' || echo "unknown")
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fi
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log "INFO" "Node configuration: id=$NODE_ID, role=$NODE_ROLE, bootstrap=$BOOTSTRAP"
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# Check if this is a reboot (marker file exists)
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if [[ -f "$FIRST_BOOT_MARKER" ]]; then
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log "INFO" "First-boot marker found, this is a reboot - skipping cluster join"
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# Read marker info
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if [[ -r "$FIRST_BOOT_MARKER" ]]; then
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MARKER_TIMESTAMP=$(cat "$FIRST_BOOT_MARKER")
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log "INFO" "Node initialized at: $MARKER_TIMESTAMP"
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fi
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# Always join for reboots (clusters should already be initialized)
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exit 1
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fi
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# First boot logic
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log "INFO" "First boot detected (no marker file)"
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# Decision based on bootstrap flag
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if [[ "$BOOTSTRAP" == "true" ]]; then
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log "INFO" "Bootstrap mode enabled - node will initialize new cluster"
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# Create marker directory and file to track initialization
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mkdir -p "$(dirname "$FIRST_BOOT_MARKER")"
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date -Iseconds > "$FIRST_BOOT_MARKER"
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exit 0 # Bootstrap
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else
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log "INFO" "Join mode enabled - node will join existing cluster"
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# Create marker after successful join (done by cluster-join.sh)
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# For now, just return join status
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exit 1 # Join existing
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fi
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