Dropwizard health check monitor

An in-browser healthcheck monitor for dropwizard healthchecks

Screenshot

Environments

You can define your environments in the json file located at assets/environments.json with the following structure.

{
    "environmentName": [{
        "name": "applicationName",
        "healthCheckUrl": "urlToHealthCheck.json"
    }],
}

Health Checks

The remote health check files need to have the following structure.

{
    "healthCheckName": {
        "healthy": "boolean"
    },
}

Reverse Proxy

If you have trouble reaching your remote healthchecks due to Access-Control-Allow-Origin header restrictions, you can use the included reverse proxy. The reverse proxy will listen on all available network interfaces and on port 12345.

node reverse-proxy.js

Example usage: 
http://localhost:12345/http://application-address.com/healthchecks.json

Docker

Application

If you want to run the healthcheck application as a Docker container. You have to edit the assets/environments.json file and build the container using docker build . in the root directory.

Reverse Proxy

If you want to run the reverse proxy as a Docker container. You have to build the container using docker build . in the /proxy directory.

Both

For your convenience there is a Docker compose file that builds and runs both the application and the reverse proxy. You have to execute the docker-compose up -d command in the root directory.