We now have two write interceptors, with one moved into
faas-provider. This commit makes the gateway use the new
external package and deletes its own.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alex@openfaas.com>

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alex@openfaas.com>

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alex@openfaas.com>

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>

update docker/distribution lib

Signed-off-by: Hilário Coelho <hilario.coelho@securityside.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>

For compatibility with newer NATS streaming version

https://github.com/openfaas/faas-netes/pull/819



Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Includes CreatedAt

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

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>

NATS moved its primary library to: github.com/nats-io/stan.go

This commit synchronises the library in the gateway to match the
queue worker.

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>

Signed-off-by: Bruno Miguel Custódio <brunomcustodio@gmail.com>

Signed-off-by: Bruno Miguel Custódio <brunomcustodio@gmail.com>

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Signed-off-by: Karthick Prabu <karthikprabu.cs@gmail.com>

Refreshed / updated vendor dependencies

Tested with "make".

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

**What**
- Add blog post to lucasroesler.com about CI/CD with Github Actions

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>

This is being added because multiple namespaces can now be used
on Kubernetes. By listing namespaces, a client such as the UI
or CLI can then enumerate the namespaces to find functions
which may span across more than one namespace.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

This patch enables the use-case for multiple namepsaces by
allowing a dot to be used in the function name.

dep has been run to update OpenFaaS projects and also to
prune unused files.

Tested by doing a build.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Alpine 3.10 is now availabe and is no-harm update.

Signed-off-by: Alex Ellis <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>

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

Includes fix for reconnection bug to NATS Streaming

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

- re-vendor queue-worker for publisher via 0.6.0
- bump queue-worker version to 0.6.0 in docker-compose.yml for
AMD64
- use new naming for NATS of nats -> NATS in variables where
required
- add default reconnect of 60 times, 2 seconds apart.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

- updates the Prometheus go client version and switches to the
promhttp handler to avoid conflicts with the new system-level
metrics.

Tested with Docker Swarm locally - no conflicts and new metrics
were gathered.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

**What**
- Update the gopkg.toml

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>

The basic-auth middleware and credentials-loading code has been
moved into the faas-provider project. This has now been brought
back into the faas project via vendoring.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

This package version supports running OpenFaas on hosts the contain `.`
in their hostname i.e. computer-a.acme.com

Signed-off-by: Edward Wilde <ewilde@gmail.com>

Introduces 0.4.6 of queue-worker - see upstream repo for changes.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

This updates alpine version to 3.7 in sample-functions, gateway
and some markdown docas.

Signed-off-by: Ivana Yovcheva (VMware) <iyovcheva@vmware.com>

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

**What**
- Add the ability to specify secrets as a csv
- Vendor the docker/cli/opts
- Update the guide for secrets to use the `faas-cli`

**Why**
- Allowing the csv specification of secrets gives users more control about how
those secrets are mounted into the container.  This is good for things like
key rotation and for developers that are building on top of OpenFaaS.

Signed-off-by: Lucas Roesler <lucas.roesler@gmail.com>

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

Note, not all `alexellis/github` references should be changed, there are
a number of repos which are not part of the openfaas org, this commit
excludes those.

Signed-off-by: John McCabe <john@johnmccabe.net>

Signed-off-by: Alex Ellis <alexellis2@gmail.com>