Jetmon: Dockerize app

[fgiannar]

Second attempt at dockerizing Jetmon after updating repo to node16

Not too fancy or super optimized as for now this is only meant to facilitate local development.

Testing instructions

1. Checkout branch
2. cp docker/env-sample docker/env and modify as needed
3. cd docker
4. docker compose build
5. docker compose up -d
6. Monitor jetmon.log

Helper note to populate the DB (todo automate this):

1. docker compose exec -it mysqldb sh
2. mysql --user=root --password=123456 jetmon_db
3. Create jetpack_monitor_subscription table

CREATE TABLE `jetpack_monitor_subscription` (
		`blog_id` bigint(20) unsigned NOT NULL,
		`bucket_no` smallint(2) unsigned NOT NULL DEFAULT 1,
		`monitor_url` varchar(300) NOT NULL,
		`monitor_active` tinyint(1) unsigned NOT NULL DEFAULT 1,
		`site_status` tinyint(1) unsigned NOT NULL DEFAULT 1,
		`last_status_change` timestamp NULL DEFAULT NULL,
		PRIMARY KEY (`blog_id`)
	);

CREATE INDEX `bucket_no_monitor_active` ON `jetpack_monitor_subscription` (`bucket_no`, `monitor_active`);

9. Add some sites:

INSERT INTO `jetpack_monitor_subscription`(blog_id,monitor_url) VALUES (YOUR_WPCOM_BLOG_ID, YOUR_SITE_URL);

[aidvu]

Nice job!