Updated to show how to use namespaces with Kubernetes
Also updates the timeouts for gateways newer than 0.7.7

If the watchdog is sent SIGTERM from an external process then it
should stop accepting new connections and attempt to finish the
work in progress. This change makes use of the new ability in Go
1.9 and onwards to cancel a HTTP server gracefully.

The write_timeout duration is used as a grace period to allow all
in-flight requests to complete. The pattern is taken directly from
the offical example in the Golang documentation. [1]

Further tuning and testing may be needed for Windows containers which
have a different set of signals for closing work. This change aims
to cover the majority use-case for Linux containers.

The HTTP health-check is also invalidated by creating an and
expression with the existing lock file.

Tested with Kubernetes by deploying a custom watchdog and the
fprocess of `env`. Log message was observed when scaling down and
connections stopped being accepted on terminating replica.

Also corrects some typos from previous PR.

[1] https://golang.org/pkg/net/http/#Server.Shutdown



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

0.7.7 allows direct function access bypassing the provider - this makes
the throughput increase and skips a HTTP hop that is no longer required.

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

Signed-off-by: Eric Stoekl <ems5311@gmail.com>

Signed-off-by: Marko Mudrinić <mudrinic.mare@gmail.com>

Since IE doesn't work well with `.click()` (because of access denied) we
can take advantage of the `navigator.msSaveOrOpenBlob`.
https://stackoverflow.com/questions/46232980/click-giving-access-denied-in-ie11/46233123#46233123



Signed-off-by: Ken Fukuyama <kenfdev@gmail.com>

MouseEvent initialization was failing on IE11.
Add a separate case for IE11 that fixes the issue.

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

window.crypto is throwing an error on IE11
which required a modification to use window.msCrypto
instead in case of running on IE11

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

Added blog post, podcast episode, 3 speaking engagements, and author to a 2017 blog/podcast row to fix formatting.

Signed-off-by: John Callaway <john@1north.com>

This will replace the gateway URL showing up as the title.

Signed-off-by: David Muckle <dvdmuckle@dvdmuckle.xyz>

The UPDATE HTTP Method isn't valid and not currently in use by the
watchdog so removing it.

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

This commit replaces occurences of http method strings with the
corresponding consts from the http package.

*Note* UPDATE is not strictly speaking a valid method and as such isn't
part of the http package (should be a PUT or PATCH?)

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

Adds a pair of configuration options for performance tuning. The
gateway can now invoke functions directly and can bypass the
provider. See updated table in README.md for configuration values.

BaseURLResolver is added with unit tests that decouples resolving
upstream URL from the reverse proxy client code.

- SingleHostBaseURLResolver resolves a single upstream host
- FunctionAsHostBaseURLResolver resolves host based upon conventions
within the URL of the request to a function for direct access

Tested with Kubernetes (faas-netes) and faas-swarm through UI, CLI
calling system endpoints and functions directly.

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

The default should be set to true so we maintain backwards.
compatibility.
readconfig.go was altered due to bug reading default value. This was
tested by adding unit tests to readconfig_test.go for positive and
negative scenarios.

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

Adding a blog post on securing Kubernetes for OpenFaaS

Signed-off-by: Daniel Shapira <daniel@twistlock.com>

Signed-off-by: Burton Rheutan <rheutan7@gmail.com>

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

Introduce new endpoint `/_/health` to watchdog for health status of
functions  which check for `/tmp/.lock` file

Fixes first part of #547 issue.

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

Add link for rewriting Git history in preparation for Derek's new
commit message linting feature.

Adds guidelines for commit message formatting with rules
from Chris Beams' blog post here:

https://chris.beams.io/posts/git-commit/



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

Integration test for combine_output should use stat instead of
man as man is not installed in the CI system.

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

This enables an often-requested feature to separate stderr
from stdout within function responses. New flag combine_output is on
by default to match existing behaviour. When combine_output is set
to false it redirects stderr to the container logs rather than
combining it into the function response.

Tested with unit tests for default behaviour and new behaviour.

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

As added by previous commit with unit tests.

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

HTTP port can now be overriden through use of "port" environmental
variable.

Prefer messaging "want" over "wanted" in error messages, this is more
idiomatic Golang.

Move away from Go ARMv6 (RPi Zero) and give ARMv7 as a minimum
version for release binaries.

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

PWD links to HTTPS - this is now supported by the provider
Move references to localhost to 127.0.0.1 to prevent clashes with 
IPv6 aliases on Linux systems.

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

Signed-off-by: rgee0 <richard@technologee.co.uk>

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

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

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

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

Typo fix.

Fixes #567

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

Signed-off-by: Jono Finger <jono@foodnotblogs.com>

Signed-off-by: Jono Finger <jono@foodnotblogs.com>

Signed-off-by: Jono Finger <jfinger@plos.org>