Move from functions ns to openfaas for Hub

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

Read secrets from variable path

This change enables secrets to be read from any mount on disk
rather than hard-coding a certain location which suits Swarm or
K8s. The default value if not specified will look in the Swarm
location of /run/secrets/

README.md (docs) updated and set to off by default.

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

Move to 0.8.1 of gateway

Makes health and info endpoints available, see release notes.

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

Add message for when JavaScript is disabled

 - Added padding to the "You need JavaScript page"
 - Added padding to the "You need JavaScript page" - Added info about the CLI tthe "You need JavaScript" page
 - Added a message for people who don't have JavaScript enabled

Signed-off-by: Rillian Grant <rillian.grant@hotmail.com>

Move gateway to gateway:0.7.9

Add feature for graceful shutdown of HTTP server

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>

Add Twistlock's blog post

Adding a blog post on securing Kubernetes for OpenFaaS

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

Update combine_output test

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>

fixed unexpected behavior where the selected function properties don'…

…t get

updated after adding/deleting a different function.

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

Bump LTS Go version

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