96 Commits

Author SHA1 Message Date
Dmitri Rubinstein
fd0abe46dd Propagate Host header from gateway request to the function.
Host HTTP header was not propagated to the function because it is not
a part of http.Request.Header map.

Signed-off-by: Dmitri Rubinstein <dmitri.rubinstein@googlemail.com>
2018-08-16 16:20:28 +01:00
Alex Ellis (VMware)
9512f09d2b Refactor scaling to use existing code
Existing code has been used for scaling up and querying replicas.
This meant the new code was deleted and there is less duplication
now.

The cache store a whole query response rather than just the
available replica count and the tests were updated. This has been
tested with Docker swarm and the image:
 openfaas/gateway:scale-17-07-2018

This feature now needs the env-var of scale_from_zero to be enabled
in order to turn on the scaling behaviour.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2018-07-20 11:39:36 +01:00
Alex Ellis (VMware)
e67d45caa1 Add feature: scale from zero to 1 replicas
This change allows functions to be "idled" or scaled to zero
replicas and then be invoked later on. There is a penalty to
scaling up - the API gateway proxy will block until the function
is ready.

A cache is included to off-set the calls to upstream API to check
on readiness along with unit tests.

Testing via scaling to zero replicas and then invoking function.
On Swarm I observed 3 seconds on an Intel Nuc i5 for scaling back
from zero replicas.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2018-07-20 11:39:36 +01:00
Edward Wilde
28c9ccd0aa Changes from pull request feedback
1. Use httptest.ResponseRecorder instead of custom implementation
StringResponseWriter.

2. Remove verbose log line in infohandler

Signed-off-by: Edward Wilde <ewilde@gmail.com>
2018-07-06 17:50:48 +01:00
Edward Wilde
aca2c7fe2a Enhance info endpoint to include gateway version
Extend the health endpoint and add gateway version information

Resolves: #733
Signed-off-by: Edward Wilde <ewilde@gmail.com>
2018-07-06 17:50:48 +01:00
Lucas Roesler
6676d1b807 Trim tailing slash from service name before proxy
**What**
- When determining the service name of the function, remove any trailing
slashes, the slashes are not allowed in service names for either Swarm
or K8S, so this can only be a left over from the url path

**Why**
- This was preventing service resolution, and hence failed functions,
    when the function was called with a trailing slash

Fixes #714

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>
2018-06-16 16:05:09 -07:00
Alex Ellis (VMware)
8133414183 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>
2018-05-23 11:42:42 +01:00
Alex Ellis (VMware)
a38931ce69 Enable basic auth on gateway
Fixes https://github.com/openfaas/faas/issues/687 allowing the
gateway to handle the responsibility of basic auth for when it is
in use.

To enable set basic_auth env-var to true and then mount two
secrets or plaintext files under /var/secrets/

basic_auth_user, basic_auth_password

Tested with faas-cli list/deploy and with Safari browser.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2018-05-23 11:42:42 +01:00
Alex Ellis (VMware)
811bbe6031 Apply gofmt
Previous PR from Simon or Ken broke build due to missing gofmt
in the PR. This PR applies it to resolve the build issue.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2018-04-11 20:46:20 -07:00
Simon Pelczer
7fe67d7af6 Implemented the autoscaling steps to be proportions of the max replicas.
Introduced an new label to set the scaling factor that is used to calculate th proportions, setting it to 0 also allows to disable scaling.
Updated the tests to reflect the changes and added a new test which shows that setting the scaling factor to 0 indeed does disable scaling.
Ensured that the scaling factor is always between [0 and 100].

Signed-off-by: Simon Pelczer <templum.dev@gmail.com>
2018-04-11 19:30:43 -07:00
Ken Fukuyama
e6a6aea422 Moved unit test files inside same directory as test target
The unit tests were inside the `gateway/tests` directory which had no
effect to the coverage for `go test`. Therefore, moved the tests inside
the same directory as the test target.

Signed-off-by: Ken Fukuyama <kenfdev@gmail.com>
2018-04-06 14:13:14 +01:00
Alex Ellis (VMware)
65ed8457af Fix issue in passing-through of proxy body
Proxy body was being passed correctly due to placement of defer
statement. This has been moved into outer scope to resolve issue.

Tested with new e2e tests in certifier component.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2018-03-27 21:12:38 +01:00
Alex Ellis (VMware)
58bd87c811 Update proxy to pass query-string
HTTP proxy was not passing query-string upstream. This change
reinstates the behaviour through TDD - adding test coverage and
automated regression testing.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2018-03-27 19:33:43 +01:00
John McCabe
fac3345668 Use http package consts for http methods
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>
2018-03-23 16:37:33 +00:00
Alex Ellis
0c7e59fe8a Add direct_functions mode to gateway for tuning
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>
2018-03-23 16:35:37 +00:00
Alex Ellis (VMware)
c716c54868 Break out logging / metrics for functions in forwarding_proxy
Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2018-03-20 09:51:42 +00:00
Alex Ellis
37ef024df7 Proxy fix - copy request headers into upstream
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-03-05 15:31:25 +00:00
Alex Ellis
6efaee5b4f Add upstream_timeout as env-var
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-03-05 12:49:25 +00:00
Alex Ellis
30928739ee Use context for upstream timeouts
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-03-05 12:49:25 +00:00
Alex Ellis
fdc7f08ba2 Pass along status code
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-03-03 17:36:33 +00:00
Alex Ellis
7120e4c5f4 Apply comments and naming conventions to HTTP proxy
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-03-03 17:36:33 +00:00
Alex Ellis
26e0de3497 Remove Golang reverseproxy and use http Client
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-03-03 17:36:33 +00:00
Alex Ellis
ff9f7a5541 Make debugging less verbose
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-02-01 09:37:05 +00:00
Alex Ellis
f954bf0733 Merge master into breakout_swarm
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2018-02-01 09:29:54 +00:00
Lucas Roesler
fe7dd9068f Remove code duplicated during a rebase
Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>
2017-12-16 16:08:52 +00:00
Lucas Roesler
1a055deb49 Add secret management to the update handler
**What**
- Pass secrets to the updateSpec method

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>
2017-12-16 16:08:52 +00:00
Alex Ellis
7c28f7d97e Add label support to Swarm
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-12-16 16:08:52 +00:00
Lucas Roesler
35f0e9e657 Clean up docs and refactor createhandler
**What**
- Add a description for the secret key to the api swagger spec.
- Remove optional examples from the secret management guide.
- Update the ApiKeyProtected README to point at the new guide.
- Refactor the `makeSpec` function to accept the already assembled secrets
array because this should be easier to unit test.

Signed-off-by: Lucas Roesler <lucas.roesler@gmail.com>
2017-12-16 16:08:52 +00:00
Lucas Roesler
5dce1deb21 Add advanced secret management
**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>
2017-12-16 16:08:52 +00:00
Lucas Roesler
0fef825fb4 Add support to specify secrets in services
**What**
- During function creation, accept an array of strings defining swarm secrets
that are required for the service
- Update docs
- Add new guide on using the secrets capability
- Add new sample function to highlight using environment variables
- Update `ApiKeyProtected` sample function to utilize the new secrets
capabilities

**Why**
- This allows secrets to remain encrypted at rest instead of being unencrypted
in environment variables and yaml files.

Fixes #285

Signed-off-by: Lucas Roesler <lucas.roesler@gmail.com>
2017-12-16 16:08:52 +00:00
Eric Stoekl
4d785c8dfb Remove Content-Type forwarding from Request
Signed-off-by: Eric Stoekl <ems5311@gmail.com>
2017-12-16 16:04:20 +00:00
Alex Ellis
dc37d131be Don't override X-Call-Id if it already exists in header
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-12-13 06:18:44 -08:00
Alex Ellis
b1e92f6b93 Add call-id via middleware
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-12-13 06:18:44 -08:00
Alex Ellis
23a7187435 Refactoring: variable names, adding tests and http constants
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-12-05 06:50:08 -06:00
Alex Ellis
2452fdea0b Allow min-scale
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-12-05 06:50:08 -06:00
Alex Ellis
78a4580ead Allow CORS to GitHub raw
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-11-29 09:48:58 +01:00
Alex Ellis
b17838ce51 Add Swarm limits
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-11-15 08:42:00 +00:00
Alex Ellis
fb1b35b6eb Don't buffer body / response into memory
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-11-11 15:39:34 +00:00
Alex Ellis
0d45ee9149 Pass on method
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-11-06 09:30:01 +00:00
Alex Ellis
c132195a5c Simple switch to enable 'GET' method'
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-11-06 09:30:01 +00:00
Alex Ellis
b2c579370a Return labels in functions list endpoint
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-11-05 20:11:47 +00:00
Alex Young
0248a5ea1d Return 500 if GET /system/functions fails
Signed-off-by: Alex Young <alex@heuris.io>
2017-10-27 15:38:03 +01:00
Alex Ellis
12a0c75e91 Add unit tests to build. Pin to specific Alpine tag.
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-26 21:02:50 +01:00
Alex Ellis
ec60d97518 Report async execution duration
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-25 19:40:33 +01:00
Alex Ellis
f696d3930d Label support for Update handler
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-23 16:19:49 +01:00
Alex Ellis
e4a1ef2d6b Add label support to Swarm
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-23 16:19:49 +01:00
Alex Ellis
520a6b05a1 Commit unit tests for content-type order
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-20 22:47:30 +02:00
Alex Ellis
4d4a09fa19 Implement header pass-through
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-20 22:47:30 +02:00
Alex Ellis
6d5ae1af5b Fix content type pass through
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-20 22:47:30 +02:00
Alex Ellis
dde98eb582 Forward path and query string through proxy
Signed-off-by: Alex Ellis <alexellis2@gmail.com>
2017-10-11 18:57:00 +01:00