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Files

Miek Gieben 52b49f4838 plugin/health: implement dyn health checks (#1214 )

Implement health.Healther in erratic and kubernetes plugin. The
kubernetes' healtcheck is only performed on startup - i.e. turn
healthy after the initial loading.

Erratic follow the drop count: every query%drop turns the healthcheck
unhealthy.

Fixes: #985

2017-11-13 09:52:40 +00:00

health_test.go

plugin/health: implement dyn health checks (#1214 )

2017-11-13 09:52:40 +00:00

health.go

Remove the word middleware (#1067 )

2017-09-14 09:36:06 +01:00

healther.go

plugin/health: implement dyn health checks (#1214 )

2017-11-13 09:52:40 +00:00

README.md

plugin/health: implement dyn health checks (#1214 )

2017-11-13 09:52:40 +00:00

setup_test.go

Remove the word middleware (#1067 )

2017-09-14 09:36:06 +01:00

setup.go

More Middleware -> Plugin conversions (#1088 )

2017-09-16 14:13:28 +01:00

README.md

health

health enables a simple health check endpoint.

By default, it listens on port 8080.

Syntax

health [ADDRESS]

Optionally takes an address; the default is :8080. The health path is fixed to /health. The health endpoint returns a 200 response code and the word "OK" when CoreDNS is healthy. It returns a 503. health periodically (1s) polls plugin that exports health information. If any of the plugin signals that it is unhealthy, the server will go unhealthy too. Each plugin that supports health checks has a section "Health" in their README.

Plugins

The following plugins report health to the health plugin:

erratic
kubernetes

Examples

Run another health endpoint on http://localhost:8091.

. {
    health localhost:8091
}