Feature idea summary

Cgroups plugin supports only proportional and max Block IO policies. We should support BFQ scheduler as well. Disk stats for the scheduler are in blkio.bfq.io_service_bytes and blkio.bfq.io_serviced files.

Multiple Explore-related components still make use of GrafanaTheme.
Since Grafana 8.0 introduces GrafanaTheme2 and deprecates GrafanaTheme we should migrate to the new theme.

This should probably be done in multiple small PRs that target a small amount of components to make review easy.

Also the following data sources have components that need to be migrated:

• Elasticsearch

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提Feature？
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Gatus is awesome. There is a way to setup a maintenance window to avoid being notified if a server (or many) goes down?

Has anyone done this safely?

If we can't open port, then lets do something like:

nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Addr