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Diffstat (limited to 'desktop/modules/vm/README.md')
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diff --git a/desktop/modules/vm/README.md b/desktop/modules/vm/README.md index 43a3271..1f8481e 100644 --- a/desktop/modules/vm/README.md +++ b/desktop/modules/vm/README.md @@ -78,6 +78,23 @@ is constructed: `Virsh.sampling` follows the page, set in the page's lazily loaded, so a closed page costs one idle process waiting on an event socket. +## Containers + +Docker containers sit below the VMs, in `Docker.qml`, built the same way: +the docker CLI, `docker events` running for the whole session, and `docker +stats --no-stream` on the 2s timer only while the page is up. They are +grouped by `com.docker.compose.project`, since a compose stack is a dozen +containers that start and stop together; a container outside a project is a +group of one. The card dot is green when the whole group runs, yellow when +part of it does. CPU is docker's own figure, 100% per core. + +The event stream is filtered to lifecycle events: health checks emit +`exec_*` events every few seconds per container, which unfiltered would +turn the stream into a poll. It dies with the daemon, so it is retried every +10s. Verbs are start, stop, restart and resume, per container or for the +whole group by id, so no compose file is needed; nothing removes a +container. + ## Two things that bite **A config with no visible window exits.** The drawer is closed most of the |