service-checker

A little service to perform some checks on a service, trigger an alert if needed, and exec a command if wanted

No dependencies at all, only pure nodejs

required

• nodejs >= 8
• that's all

required config

a config file is required at the root of the project service-checker/config.json

{
    "checks": [
        {
            "type": "http-get", //required
            "value": "https://myservice.com", //required
            "interval": "60000", //required
            "alerts": { //optional
                "webhook": "YOUR_WEBHOOK_URL"
            },
            "command": "service my-service restart" //optional
        },
        {
            "type": "http-get",
            "value": "http://myservice.com",
            "expected": 301, //optional status code expected (default 200)
            "interval": "60000",
            "alerts": {
                "webhook": "YOUR_WEBHOOK_URL"
            }
        }
    ]
}

currently only http-get check is available, but others will come (like http-post, exec a bash command)

start

npm start or pm2 to run as a deamon pm2 start ./src/service-checker.js

http-get check

this check allow you to perform a GET request on a specific url and expect a status code (200 by default)

alerts (optional)

currently only webhooks alert are supported, others will come (ex: email)

command (optional)

execute a bash command if the check fails

note

alert and command are optional but you need to put at least one of them