Adding healthcheck

Dozzle has internal support for healthcheck using dozzle healthcheck command. It is not enabled by default as it adds extra CPU usage. To use healthcheck you need to configure it. Below is an example that checks the health of Dozzle every 3 seconds.

version: "3"
services:
  dozzle:
    image: amir20/dozzle:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    ports:
      - 8080:8080
    healthcheck:
      test: ["CMD", "/dozzle", "healthcheck"]
      interval: 3s
      timeout: 30s
      retries: 5
      start_period: 30s