Health Checks

Single Container

• Define in: <instance>.container

[Container]
HealthCmd=/usr/bin/command

HealthInterval=2m
HealthOnFailure=kill
HealthRetries=5

HealthStartPeriod=1m
HealthStartupCmd=command
HealthStartupInterval=1m
HealthStartupRetries=8
HealthStartupSuccess=2
HealthStartupTimeout=1m33s
HealthTimeout=20s

Compose Container

• Define in: compose.yml

services:
  backend:
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost"]
      interval: 1m30s
      timeout: 10s
      retries: 3
      start_period: 40s
      start_interval: 5s

Containerfile (deprecated)

• Define in: <instance>/Containerfile

HEALTHCHECK [OPTIONS] CMD command
# --interval=DURATION (default: 30s)
# --timeout=DURATION (default: 30s)
# --start-period=DURATION (default: 0s)
# --start-interval=DURATION (default: 5s)
# --retries=N (default: 3)