Health Checking

Health checks periodically poll services to ensure they are running properly. Services without health checks defined are assumed to be perpetually healthy.

Example configuration:

services:
  foo:
    redirect: "http://172.0.0.8"
    health:
      path: "/health"
      tls: false
      interval: 5s
      timeout: 300ms
      method: "POST"

Properties:

• path is appended path to the service’s URL that will be queried to determine health (Default: /).
• tls instructs voltproxy to query the health endpoint using HTTPS (Default: false).
• interval is the amount of time between health check queries (Default: 30s).
• timeout is the maximum amount of time between a health check and a response until the service is marked as unhealthy (Default: 5s).
• method is the HTTP method used for the health check (Default: GET).

Health checking is commonly paired with load balancing to facilitate a service failover scheme.