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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>
72 lines
2.2 KiB
Bash
Executable file
72 lines
2.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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# health-check.sh - Health check wrapper for services
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# Usage: health-check.sh <service_name> <health_url> [timeout] [retry_interval]
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#
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# Arguments:
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# service_name - Name of the service (for logging)
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# health_url - HTTP/HTTPS URL of the health endpoint
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# timeout - Maximum time to wait in seconds (default: 300)
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# retry_interval - Time between retries in seconds (default: 5)
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#
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# Returns:
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# 0 - Service is healthy
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# 1 - Service is unhealthy (timeout reached)
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SERVICE_NAME="${1:-}"
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HEALTH_URL="${2:-}"
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TIMEOUT="${3:-300}"
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RETRY_INTERVAL="${4:-5}"
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# Validate arguments
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if [[ -z "$SERVICE_NAME" || -z "$HEALTH_URL" ]]; then
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echo "ERROR: Missing required arguments" >&2
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echo "Usage: $0 <service_name> <health_url> [timeout] [retry_interval]" >&2
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exit 1
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fi
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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\",\"service\":\"$SERVICE_NAME\",\"message\":\"$message\"}" >&2
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}
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# Main health check loop
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log "INFO" "Starting health check for $SERVICE_NAME at $HEALTH_URL (timeout: ${TIMEOUT}s)"
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START_TIME=$(date +%s)
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ATTEMPT=0
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while true; do
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CURRENT_TIME=$(date +%s)
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ELAPSED=$((CURRENT_TIME - START_TIME))
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if [[ $ELAPSED -ge $TIMEOUT ]]; then
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log "ERROR" "Health check timeout reached after ${ELAPSED}s"
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exit 1
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fi
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ATTEMPT=$((ATTEMPT + 1))
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log "INFO" "Health check attempt $ATTEMPT (elapsed: ${ELAPSED}s)"
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# Perform health check (allow insecure TLS for self-signed certs)
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HTTP_CODE=$(curl -k -s -o /dev/null -w "%{http_code}" "$HEALTH_URL" 2>/dev/null || echo "000")
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if [[ "$HTTP_CODE" == "200" ]]; then
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log "INFO" "Health check passed (HTTP $HTTP_CODE)"
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echo "{\"timestamp\":\"$(date -Iseconds)\",\"service\":\"$SERVICE_NAME\",\"status\":\"healthy\",\"attempts\":$ATTEMPT,\"elapsed\":${ELAPSED}}"
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exit 0
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elif [[ "$HTTP_CODE" == "000" ]]; then
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log "WARN" "Health check failed: connection error (attempt $ATTEMPT)"
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else
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log "WARN" "Health check failed: HTTP $HTTP_CODE (attempt $ATTEMPT)"
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fi
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sleep "$RETRY_INTERVAL"
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done
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