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codetainer allows you to create code 'sandboxes' you can embed in your web applications (think of it like an OSS clone of codepicnic.com ). Codetainer runs as a webservice and provides APIs to create, view, and attach to the sandbox along with a nifty HTML terminal you can interact with the sandbox in realtime. It uses Docker and its introspection APIs to provide the majority of this functionality.
Codetainer is written in Go. For more information, see the slides from a talk introduction .
Build & Installation
Requirements
- Docker >=1.8 (required for file upload API)
- Go >=1.4
- godep
Building & Installing From Source
# set your $GOPATH
go get github.com/codetainerapp/codetainer
# you may get errors about not compiling due to Asset missing, it's ok. bindata.go needs to be created
# by `go generate` first.
cd $GOPATH/src/github.com/codetainerapp/codetainer
# make install_deps # if you need the dependencies like godep
makeConfiguring Docker
You must configure Docker to listen on a TCP port.
DOCKER_OPTS="-H tcp://127.0.0.1:4500 -H unix:///var/run/docker.sock"
Configuring codetainer
See ~/.codetainer/config.toml. This file will get auto-generated the first time you run codetainer, please edit defaults as appropriate.
# Docker API server and port
DockerServer = "localhost"
DockerPort = 4500
# Enable TLS support (optional, if you access to Docker API over HTTPS)
# DockerServerUseHttps = true
# Certificate directory path (optional)
# e.g. if you use Docker Machine: "~/.docker/machine/certs"
# DockerCertPath = "/path/to/certs"
# Database path (optional, default is ~/.codetainer/codetainer.db)
# DatabasePath = "/path/to/codetainer.db"Running an example codetainer
$ sudo docker pull ubuntu:14.04
$ codetainer image register ubuntu:14.04
$ codetainer create ubuntu:14.04 my-codetainer-name
$ codetainer server # to start the API server on port 3000Embedding a codetainer in your web app
- Copy codetainer.js to your webapp.
- Include
codetainer.jsandjqueryin your web page. Create a div to house the codetainer terminal iframe (it's#terminalin the example below).
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>lsof tutorial</title>
<link rel='stylesheet' href='/stylesheets/style.css' />
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script src="/javascripts/codetainer.js"></script>
<script src="/javascripts/lsof.js"></script>
</head>
<body>
<div id="terminal" data-container="YOUR CODETAINER ID HERE">
</body>
</html> - Run the javascript to load the codetainer iframe from the codetainer API server (supply
data-containeras the id of codetainer on the div, or supplycodetainerin the constructor options).
$('#terminal').codetainer({
terminalOnly: false, // set to true to show only a terminal window
url: "http://127.0.0.1:3000", // replace with codetainer server URL
container: "YOUR CONTAINER ID HERE",
width: "100%",
height: "100%",
});
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