traefik/.github/CONTRIBUTING.md

Contributing

Building

You need either Docker and make, or go and glide in order to build traefik.

Setting up your go environment

• You need go v1.5
• You need to set export GO15VENDOREXPERIMENT=1 environment variable
• You need go-bindata to be able to use go generate command (needed to build) : go get github.com/jteeuwen/go-bindata/....
• If you clone Træfɪk into something like ~/go/src/github.com/traefik, your GOPATH variable will have to be set to ~/go: export GOPATH=~/go.

Using Docker and Makefile

You need to run the binary target. This will create binaries for Linux platform in the dist folder.

$ make binary
docker build -t "traefik-dev:no-more-godep-ever" -f build.Dockerfile .
Sending build context to Docker daemon 295.3 MB
Step 0 : FROM golang:1.5
 ---> 8c6473912976
Step 1 : RUN go get github.com/Masterminds/glide
[...]
docker run --rm  -v "/var/run/docker.sock:/var/run/docker.sock" -it -e OS_ARCH_ARG -e OS_PLATFORM_ARG -e TESTFLAGS -v "/home/emile/dev/go/src/github.com/containous/traefik/"dist":/go/src/github.com/containous/traefik/"dist"" "traefik-dev:no-more-godep-ever" ./script/make.sh generate binary
---> Making bundle: generate (in .)
removed 'gen.go'

---> Making bundle: binary (in .)

$ ls dist/
traefik*

Using glide

The idea behind glide is the following :

• when checkout(ing) a project, run glide install to install (go get …) the dependencies in the GOPATH.
• if you need another dependency, import and use it in the source, and run glide get github.com/Masterminds/cookoo to save it in vendor and add it to your glide.yaml.

$ glide install
# generate
$ go generate
# Simple go build
$ go build
# Using gox to build multiple platform
$ gox "linux darwin" "386 amd64 arm" \
    -output="dist/traefik_{{.OS}}-{{.Arch}}"
# run other commands like tests
$ go test ./...
ok      _/home/vincent/src/github/vdemeester/traefik    0.004s

Tests

You can run unit tests using the test-unit target and the integration test using the test-integration target.

$ make test-unit
docker build -t "traefik-dev:your-feature-branch" -f build.Dockerfile .
# […]
docker run --rm -it -e OS_ARCH_ARG -e OS_PLATFORM_ARG -e TESTFLAGS -v "/home/vincent/src/github/vdemeester/traefik/dist:/go/src/github.com/containous/traefik/dist" "traefik-dev:your-feature-branch" ./script/make.sh generate test-unit
---> Making bundle: generate (in .)
removed 'gen.go'

---> Making bundle: test-unit (in .)
+ go test -cover -coverprofile=cover.out .
ok      github.com/containous/traefik   0.005s  coverage: 4.1% of statements

Test success

For development purpose, you can specifiy which tests to run by using:

# Run every tests in the MyTest suite
TESTFLAGS="-check.f MyTestSuite" make test-integration

# Run the test "MyTest" in the MyTest suite
TESTFLAGS="-check.f MyTestSuite.MyTest" make test-integration

# Run every tests starting with "My", in the MyTest suite
TESTFLAGS="-check.f MyTestSuite.My" make test-integration

# Run every tests ending with "Test", in the MyTest suite
TESTFLAGS="-check.f MyTestSuite.*Test" make test-integration

More: https://labix.org/gocheck

Documentation

The documentation site is built with mkdocs

First make sure you have python and pip installed

$ python --version
Python 2.7.2
$ pip --version
pip 1.5.2

Then install mkdocs with pip

$ pip install mkdocs

To test documentaion localy run mkdocs serve in the root directory, this should start a server localy to preview your changes.

$ mkdocs serve
INFO    -  Building documentation... 
WARNING -  Config value: 'theme'. Warning: The theme 'united' will be removed in an upcoming MkDocs release. See http://www.mkdocs.org/about/release-notes/ for more details 
INFO    -  Cleaning site directory 
[I 160505 22:31:24 server:281] Serving on http://127.0.0.1:8000
[I 160505 22:31:24 handlers:59] Start watching changes
[I 160505 22:31:24 handlers:61] Start detecting changes