* This experimental patch records metrics as invocations start
so that the metrics can be used to make better scale to zero
decisions in faas-idler.
Tested with Kubernetes on a single-node cluster, metrics
reported as expected. Existing metrics still report.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
The function deployment and status structs have been moved away
into the faas-provider package.
Tested with a build, running tests, and CI.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
- instruments async handler for report and for queueing async
requests
- make MustRegister only ever run once to prevent sync issues
Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
Partially fixes#532 by introducing two metrics that are
supported by Kubernetes HPAv2 and RED metrics-style
dashboards.
Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
- updates comments and adds where missing
- updates locks so that unlock is done via defer instead of
at the end of the statement
- extracts timeout variable in two places
- remove makeClient() unused method from metrics package
No-harm changes tested via go build.
Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
This change exposes the gateway metrics with an exporter which
implements the Collector interface of prometheus.
This change Fixes#697
Signed-off-by: Ken Fukuyama <kenfdev@gmail.com>
