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>

The queue's name will be consumed by the queue worker to
publish to other topics / slow queues.

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>

Propagates the context to upstream requests so that
cancellation can cascade.

Closes: #1501 by @SpaWn2KiLl which was not signed-off.

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

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

This should be a "no-harm" change to use the namespace/sub-
system definition for CounterOpts.

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

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>

There was a case where a deployment with a single namespace on
faas-netes would show the namespace suffix for all functions.  we didn't
need to show this because the gateway will proxy to the default
namespace for fns without the namespace siffix.

This was tested on Swarm (no suffix), faas-netes (single namespace, no
suffix) and faas-netes, multi-ns, suffix shown.

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

The padding was off on the Gateway UI for the function
Store popup.

I have removed the 0padding css class from this element and left
it on the elements that require it

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

Signed-off-by: Lars Lehtonen <lars.lehtonen@gmail.com>

Fixes #1442

Signed-off-by: Thomas Schmidt <thomaschmidt@gmail.com>

Optimizes Docker builds by copying from license-check Docker image
instead of using curl to download the tool.

Signed-off-by: hasheddan <georgedanielmangum@gmail.com>

Signed-off-by: Vivek Singh <vivekkmr45@yahoo.in>

Tested with local Docker build for each component.

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

There's a new release which appears to have no apparent down-
sides or breakages.

https://www.alpinelinux.org/posts/Alpine-3.11.2-released.html



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

**What**
- Always apply the `FunctionPrefixTrimmingURLPathTransformer` when
  enqueueing async function requests. This ensures that the context
  information sent to the function is correct

Resolves #85

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

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

We now hide the new namespace dropdown selector when
there is only 1 namespace, or when we are on swarm
This is also hidden in the function create page and
the function detail page

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

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

This is a precursor to adding a dropdown for namespaces
selection (#1379)

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

This allows a uswer to select a non-standard (not openfaas-fn)
namespace from the UI to deploy a function into.

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

This PR adds a namespace dropdown for the openfaas
namespaces. If a user has non-default namespaces
installed then a user can select that namespace,
view functions in that namespace, invoke them from
the UI and delete them from that namespace.

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

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>

Signed-off-by: Jonatas Baldin <jonatas.baldin@gmail.com>

Signed-off-by: Jonatas Baldin <jonatas.baldin@gmail.com>

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

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

Allows alerts to trigger functions to scale when they
also have an optional namespace set.

Tested e2e with Kubernetes 1.15 and a non-default namespace.

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

When coupled with the latest version of faas-netes, the gateway
can now invoke, query and deploy functions into alternative
namespaces.

Tested e2e by creating a namespace "fn" and deploying, then
invoking a function deployed there and in the default 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>

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

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

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>