Docker machine PWD driver

This driver tricks machine and allows to create / remove play-with-docker instances remotely.

Before using it please make sure of the following:

• Create a session in PWD and set PWD_URL env variable or use --pwd-url flag when creating an instance

Use glide to install dependencies (needs to have a proper goland setup)

glide install

Compile simply with:

go build

To have a statically linked binary:

CGO_ENABLED=0 go build -a -installsuffix nocgo  .

Download the release bundle from the releases section and place the binary that corresponds to your platform it somewhere in your PATH

Use go get github.com/play-with-docker/docker-machine-driver-pwd and make sure that docker-machine-driver-pwd is located somewhere in your PATH

• Creating an instance:

# Create a session in play-with-docker.com and set the PWD_URL env variable
docker-machine create -d pwd --pwd-url <pwd_url> node1
eval $(docker-machine env node1)
docker ps

Alternatively you can set the env variable PWD_URL to avoid passing it as a flag every time.

• Remove an instance

docker-machine rm -f node1

• Which session am I using

docker-machine inspect node1

Have a look at the "Driver" section for this information.

For local development it's necessary to set PWD_PORT, PWD_HOSTNAME and PWD_SSL_PORT accordingly to use with local PWD.

i.e:

export PWD_PORT=3000
export PWD_SSL_PORT=3001

• I changed the way pwd asks for a session. It does not need to have the playground url with a "/p/ID_OF_YOUR_PLAYGROUND" in it. If you give it a playground, it will create a sandbox in it (if it exists), or else it will create a session and sandbox in it. This parameters can be seen using the command "docker-machine inspect YOUR_MACHINE"

• In order to achieve this, I had to modify the play-with-docker version by returning a JSON when you create a new session (instead of nothing). This json looks like below. This change can be done in the handlers/new_session.go

{"session_id":"ac95f9e1-093b-4fe8-af79-5a3180d41e89","hostname":"playground.localhost"}