Status monitoring for Decred services

[xaur]

This is a high level overview of status monitoring tools that would be nice to have.

The two main use cases are "show me current status" (pull) and "notify me when things change" (push).

Decred Status Dashboard

Show status, updated times and history of incidents of all important services in one page. This could live at status.decred.org + 1 mirror elsewhere.

• mainnet chain
• testnet chain
• DNS seeders
• CSPP servers
• dcrtime servers
• Politeia
• CMS
• matrix.decred.org
• chat.decred.org
• dcrdata instances
• VSPs (the VSP page implements a good deal of it)
• mining pools
• major exchange deposits, withdrawals, trading
• anything else?

Examples:

• https://www.githubstatus.com/
• https://status.matrix.org/

Decred Status Notifications

Monitor services listed above and generate events for their status changes.

From those events, generate notifications and publish them via special-purpose Twitter account and a dedicated Matrix room.

Bonus task: RSS, Atom.

Examples:

• https://twitter.com/githubstatus

It will likely be the same system that reuses monitoring and events generation for both the dashboard and notifications.

P.S. Inspired by today's GitHub incident, their status dashboard and their dedicated status Twitter account.

[xaur]

Infura's status page was helpful to learn about the timeline of Nov 11 Ethereum Geth incident.