,-.
                                                  ) \
                                              .--'   |
                                             /       /
                                             |_______|
                                            (  O   O  )
                                             {'-(_)-'}
                                           .-{   ^   }-.
                                          /   '.___.'   \
                                         /  |    o    |  \
                                         |__|    o    |__|
                                         (((\_________/)))
                                             \___|___/
                                        jgs.--' | | '--.
                                           \__._| |_.__/

Warden in Go, because why not.

• 
• 
• Tracker
• Warden

Backends

Garden provides a platform-neutral API for containerization. Backends implement support for various specific platforms. So far, the list of backends is as follows:

• Garden Linux - Linux Backend

Garden API

The canonical API for Garden is defined as a collection of Go interfaces. See the godoc documentation for details.

For convenience during Garden development, Garden also supports a REST API which may be used to "kick the tyres". The REST API is not supported.

For example, if Garden Linux is deployed to localhost and configured to listen on port 7777, the following commands may be used to kick its tyres:

# list containers (should be empty)
curl http://127.0.0.1:7777/containers

# create a container
curl -H "Content-Type: application/json" \
  -XPOST http://127.0.0.1:7777/containers \
  -d '{"rootfs":"docker:///busybox"}'

# list containers (should list the handle returned above)
curl http://127.0.0.1:7777/containers

# spawn a process
#
# curl will choke here as the protocol is hijacked, but...it probably worked.
curl -H "Content-Type: application/json" \
  -XPOST http://127.0.0.1:7777/containers/${handle}/processes \
  -d '{"path":"sleep","args":["10"]}'

See REST API examples for more.

Testing

Pre-requisites

• git (for garden and its dependencies on github)
• mercurial (for some dependencies not on github)

Make a directory to contain go code:

$ mkdir ~/go

From now on, we assume this directory is in /root/go.

Install Go 1.2.1 or later. For example, install gvm and issue:

$ gvm install go1.2.1
$ gvm use go1.2.1

Extend $GOPATH and $PATH:

$ export GOPATH=/root/go:$GOPATH
$ export PATH=$PATH:/root/go/bin

Install godep (used to manage garden's dependencies):

$ go get github.com/kr/godep

Get garden and its dependencies:

$ go get github.com/cloudfoundry-incubator/garden

and in this directory, re-build the protocol (if you've changed it) see below.

Install ginkgo (used to test garden):

$ go install github.com/onsi/ginkgo/ginkgo

Run the tests (skipping performance measurements):

$ ginkgo -r

Building the protocol

Pre-requisite

• protoc; download the archive, unpack it into a directory with no spaces in the full path; and build according to INSTALL.txt.

To build the protocol:

$ go get code.google.com/p/gogoprotobuf/{proto,protoc-gen-gogo,gogoproto}
$ make protocol