config.yaml

---
# The YAML configuration file allows you to define the rules, actions,
# and command execution settings for YAML Runner Go.

# Defines the settings for the YAML Runner Go daemon, including
# the interval at which the actions should be executed. The interval value
# should be specified in a valid duration format (e.g., "5s" for 5 seconds).
daemon:
  interval: 5s
# Specifies the logging settings for the application. It includes
# the log file path, whether to enable quiet mode (suppressing non-error
# log messages), the log level (e.g., "debug", "info", "warn", "error"),
# and whether to format log output in JSON.
logging:
  file: ./yaml-runner-go.log
  quiet: false
  level: debug
  json: false
# Describes the facts or variables that can be used in the rules section.
# Each fact has a unique name and a command associated with it. The command
# will be executed to obtain the value of the fact.
facts:
  - name: apacheIsRunning
    command: "curl --connect-timeout 1 -s http://localhost:80/; echo $?;"
  - name: loadAverage1
    command: "[[ -e /proc/loadavg ]] && awk '{print $(NF-2)}' /proc/loadavg | cut -d. -f1 || sysctl -n vm.loadavg | awk '{print $2}' | cut -d, -f1"
    shell: /bin/bash
# Defines the actions to be executed based on the specified rules. Each action
# consists of a command to be executed when the rules evaluate to true.
# The rules are expressed using boolean expressions that can reference
# the facts defined earlier.
actions:
  - command: "echo \"Stopping apache\""
    rules:
      - "[[ ${loadAverage1} -gt 15 ]]"
      - "[[ ${apacheIsRunning} -eq 0 ]]"
    shell: /bin/bash
  - command: "echo \"Starting apache\""
    rules:
      - "[[ ${loadAverage1} -lt 15 ]]"
      - "[[ ${apacheIsRunning} -ne 0 ]]"
    shell: /bin/bash