Droplet Maintainer

This is a simple script that will stop and start Droplet instances if it fails to GET a particular URL. This is useful for maintaining Droplet instances that are not behind a load balancer.

Flowchart

graph TD
  A[Start] --> B[Initialize variables]
  B --> C[Enter while loop]
  C --> D{URL reachable for T amount?}
  D -->|Yes| C
  D -->|No| E[Restart the EC2 server<br>handle unreachable URL]
  E --> C

Loading

Configuration

Since whole point is to maintain Droplet instnace. this is made to be hosted on a different machine. that have no connection to the Droplet instance you are monitoring.

You can get digitalocean_token from Application & API page.

{
    "i-03cdcee6a9ea8be78": {
        "location": {
            "url": "https://streamsnip.com",
            "headers": {},
            "response_code" : 200,
            "timeout" : 10
        },
        "digitalocean_token": "",
        "interval": 60,
        "tolerance" : 10,
        "discord": "https://discord.com/api/webhooks/1205223388512124990/ub640V3iN-"
    }
}

Installation

pip install -r requirements.txt

Usage

python main.py

Crontab

@reboot cd /root/droplet_maitainer && nohup python3 main.py &