The histogram for gateway_functions_seconds excluded the status
code that gives important information for setting up SLOs.
Fixes: #1725
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alex@openfaas.com>
* Add service target metric
* Add service min replicas metric
* Add scale type metric
These combined allow new auto-scaling modes and parameters
for OpenFaaS Pro customers.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
Reduce cache expiry to help support issues where a function
may be scaled down by a user, when it is still in use.
The 5s cache meant that all requests would fail until the
expiry. The 250ms setting is a 20x reduction.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This appears to have been removed inadvertently whilst
adding scale from zero logic into the gateway.
Going forward, synchronous and asynchronous calls will have a
header populated.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This appears to have broken CI at least three times now and
prevented us from shipping a release binary for a tag.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
The faas-cli throws an error because it always expects a
commit_message for the gateway version, and if it's null - it
will crash. This only affects local development.
The code in faas-cli should be changed to use a struct instead
of casting to an interface.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
Polls every 100 ms instead of every 50ms for use with a new
faas-netes PR:
https://github.com/openfaas/faas-netes/pull/726
The call is much faster now, so this request should me made
at a lower frequency.
Also adds error handling for URL building in the external
service query code.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This type abstracts the function_query type and introduces an
interface for testing and substitution.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
Enables publishing to various topics according to annotations
on the functions. The function cache is moved up one level so
that it can be shared between the scale from zero code and the
queue proxy.
Unit tests added for new internal methods.
Tested e2e with arkade and the newest queue-worker and RC
gateway image with two queues and an annotation on one of the
functions of com.openfaas.queue. It worked as expected including
with multiple namespace support.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
* 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>
