Introduces a single-flight call to a function's health
endpoint to verify that it is registered with an Istio
sidecar (Envoy) before letting the invocation through.
Results are cached for 5 seconds, before a probe is
required again.
Tested without Istio, with probe_functions environment
variable set to true, I saw a probe execute in the logs.
Fixes: #1721 for Istio users.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alex@openfaas.com>
When querying for replicas during a scale up event, then the
gateway can overwhelm the provider with requests. This is
especially true under high concurrent load.
The changes in this PR limit the inflight requests.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alex@openfaas.com>
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>
The queue type now resides in the provider, so that there is
no risk of a circular reference.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This is currently being hidden and needs to be bubbled up
into the logs to show an issue with calling list functions
during a deletion in faasd.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
**What**
- Add unit test that verifies the behavior of the logging middleware in
various reponse cases
Signed-off-by: Lucas Roesler <roesler.lucas@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>
This commits updates version endpoint to use ProviderInfo and VersionInfo structs from
faas-provider.GatewayInfo now uses ProviderInfo and VersionInfo structs. GatewayInfo is
left within gateway. Consumer of this endpoint should use typed struct GatewayInfo to
parse response.
Signed-off-by: Vivek Singh <vivekkmr45@yahoo.in>
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 patch changes the code which looks up service and appends
them to the Exporter's list. It previously would create an
endless list and cause a memory leak.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
* Updates AngularJS to 1.8.0
* Updates the MaterialUI theme to 1.2.1
* Fixes: #1576
Tested by running the gateway locally, with NATS, Prometheus,
and a gateway port-forwarded from a local KinD cluster.
The UI rendered and the newer files were served. Functions
could be deployed and invoked from the store and CLI.
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This field doesn't appear to be used and is supplied via the
querystring which faas-netes (the only ns-enabled provider
already consumes)
Related to PR:
https://github.com/openfaas/faas-netes/pull/671
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
