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Add documentation about new health and plugins

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Joshua Boniface
2023-02-22 01:37:41 -05:00
parent 109654ba77
commit 8699c291ac
3 changed files with 184 additions and 2 deletions
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docs/manuals/daemon.md
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@ -52,9 +52,11 @@ The daemon startup sequence is documented below. The main daemon entry-point is
0. The node activates its keepalived timer and begins sending keepalive updates to the cluster. The daemon state transitions from `init` to `run` and the system has started fully.
# PVC Node Daemon manual
## Node health plugins
The PVC node daemon ins build with Python 3 and is run directly on nodes. For details of the startup sequence and general layout, see the [architecture document](/architecture/daemon).
The PVC node daemon includes a node health plugin system. These plugins are run during keepalives to check various aspects of node health and adjust the overall node and cluster health accordingly. For example, a plugin might check that all configured network interfaces are online and operating at their correct speed, or that all operating system packages are up-to-date.
For the full details of the health and node health plugin system, see the [node health plugin manual](/manuals/health-plugins).
## Configuration