Refresh ECR tokens based on config.json. Start app with pm2 start config.json

config.json

{
	"apps": [
		{
			"name": "refresh-cron",
			"command": "python3 /etc/docker/compose/composeservice/configurations/ecr-refresh-token.py",
			"autorestart": true,
			"env": {
				"REGION": "ap-south-1",
				"ENDPOINT": "388364135013.dkr.ecr.ap-south-1.amazonaws.com"
			}
		}
	]
}

ear-refresh-token.py

import schedule
import time
import os
from datetime import datetime

region = os.environ.get('REGION')
endpoint = os.environ.get('ENDPOINT')
command = 'aws ecr get-login-password --region '+ region + ' | docker login --username AWS --password-stdin '+ endpoint
os.system(command)
print('Done refreshing the token initially')

def job():
        print("Refreshing the token")
        with open('cron-logs.log', 'a') as file:
                now = datetime.now()
                before = 'LOG:\t'+ now.strftime('%m/%d/%Y, %H:%M:%S') +' - Refereshing token.\n'
                file.write(before)
        os.system(command)
        with open('cron-logs.log', 'a') as file:
                now = datetime.now()
                after = 'LOG:\t'+ now.strftime('%m/%d/%Y, %H:%M:%S') +' - Token referesh done.\n'
                file.write(after)
        print('Done refereshing the token')

# refresh the token every 5 hours
schedule.every(5).hours.do(job);

while 1:
    schedule.run_pending()
    time.sleep(1)

token-refresh.service

[Unit]
Description=ECR token refresh service

[Service]
ExecStart=/etc/docker/compose/composeservice/configurations/refresh-cron.sh dev

[Install]
WantedBy=multi-user.target