healthy

A very simple health checker for your site. The root package contains a library that can be used in your Go program.

healthyd package contains a command that reads JSON config and start a deamon running configured checks. May be run on rpi.

Installation

With go get

go get rmazur.io/healthy/healthyd

Usage

Command line options:

  -config-file string
    	configuration file path

For example

healthyd -config-file my-checks.json

Configuration file example.

{
  "twillio": {
    "accountId": "<myAccountId>",
    "authToken": "<myAuthToken>>",
    "from": "<myTwillioNumber>",
    "to": "<myPersonalNumber>"
  },
  "reportFailuresCount": 3,
  "firstRetryDelay": "3s",
  "httpChecks": [
    {
      "url": "https://example.xom",
      "expectedStatusCode": 200,
      "timeout": "2s",
      "period": "5m",
      "flex": "1m"
    },
    {
      "url": "https://google.com",
      "expectedStatusCode": 200,
      "timeout": "2s",
      "period": "10m",
      "flex": "2m"
    }
  ]
}

Here we define 2 HTTP checks run with different time intervals (period +/- flex). If twillio config is defined, the daemon will send invoke Twillio APIs to send SMS notifications.

License

Copyright 2019 Roman Mazur

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.