Tracking issue - Health Status Tooling

Created by: caugustus-sourcegraph

We want to offer admins a simple way to evaluate the health of a Sourcegraph deployment.

Define a list of technical health checks that validate deployment is healthy
Ship a prototype health status tool that provides validation that everything is set up properly. The prototype should assess the following:
- Can services talk to each other as expected
- Is the disk configured as expected (i.e., each replica has a separate location defined, etc)
- Is the disk and network performing as expected
- Can the instance communicate with the code hosts
The tool should work for Kubernetes deployments (w/ or w/o Helm)
The tool should render health status in a visually simple way via CLI (think stop sign colored updates). For an example please see this Reddit post.
Ship documentation on remediation efforts or troubleshooting best practices. The documentation should be descriptive enough to assist customers/CEs debug at each level of the health check. The documentation should address both Yellow and Red output statuses.
Share this tool with CE to validate with select customers