Keepalived for Kubernetes with Hetzner-Cloud scripts

Docker image for keepalived to failover Floating-IPs (of Hetzner Cloud).

• Includes helper scripts to check and handle Floating-IPs
  • assign-floating-ip.sh: Assigns a Floating-IP to the current Node
  • check-fip.sh: Checks if a Floating-IP is assigned to the current Node
  • check-http.sh: Simple HTTP-Check to validate if the upstream proxy is healthy
  • check-enabled.sh: Script which fails if ENABLED=0 is defined to manually put Keepalived in FAULT-mode.
• Includes prometheus exporter (Port 9165)
• Redirects script-outputs to stdout/stderr

Usage

• Create your docs/keepalived.conf scripts and mount it to /etc/keepalived

• Run the Container/Pod with HCLOUD_TOKEN environment variable or (better) put the token in /etc/keepalived/HCLOUD_TOKEN secrets file.

• Optional: Configure keepalived-exporter using env-vars

  • DISABLE_EXPORTER=false: Set true to disable the exporter.
  • EXPORTER_LISTEN_ADDRESS=:9165: Listen address/port for prometheus exporter.