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52 lines
2.0 KiB
Markdown
52 lines
2.0 KiB
Markdown
# play-with-docker
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Play With Docker gives you the experience of having a free Alpine Linux Virtual Machine in the cloud
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where you can build and run Docker containers and even create clusters with Docker features like Swarm Mode.
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Under the hood DIND or Docker-in-Docker is used to give the effect of multiple VMs/PCs.
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A live version is available at: http://play-with-docker.com/
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## Requirements
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Docker 1.13+ is required. You can use docker-machine with the following command:
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```
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docker-machine create -d virtualbox --virtualbox-boot2docker-url https://github.com/boot2docker/boot2docker/releases/download/v1.13.0-rc1/boot2docker.iso <name>
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```
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The docker daemon needs to run in swarm mode because PWD uses overlay attachable networks. For that
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just run `docker swarm init`.
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It's also necessary to manually load the IPVS kernel module because as swarms are created in `dind`,
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the daemon won't load it automatically. Run the following command for that purpose: `sudo lsmod xt_ipvs`
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## Installation
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Start the Docker daemon on your machine and run `docker pull docker:1.12.2-rc2-dind`.
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1) Install go 1.7.1 with `brew` on Mac or through a package manager.
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2) `go get`
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3) `go build`
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4) Run the binary produced as `play-with-docker`
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5) Point to http://localhost:3000/ and click "New Instance"
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Notes:
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* There is a hard-coded limit to 5 Docker playgrounds per session. After 1 hour sessions are deleted.
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* If you want to override the DIND version or image then set the environmental variable i.e.
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`DIND_IMAGE=docker:dind`
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## FAQ
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### How can I connect to a published port from the outside world?
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We're planning to setup a reverse proxy that handles redirection automatically, in the meantime you can use [ngrok](https://ngrok.com) within PWD running `docker run -d --net=host jpetazzo/ngrok "-log-level debug 127.0.0.1:<port>"` where `"<port>"` is the published service port. After that check the created container logs to look for the *.ngrok.io URL so it can be used in the browser and that's it.
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