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Bare bones support of docker exec through the proxy

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Johannes Zellner
2018-08-17 15:30:23 +02:00
parent db385c6770
commit 4d4ce9b86e
2 changed files with 20 additions and 9 deletions
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27
src/dockerproxy.js
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@@ -137,16 +137,27 @@ function start(callback) {
gHttpServer.on('upgrade', function (req, client, head) {
// Create a new tcp connection to the TCP server
var remote = net.connect('/var/run/docker.sock', function () {
// two-way pipes between client and docker daemon
client.pipe(remote).pipe(client);
var upgradeMessage = req.method + ' ' + req.url + ' HTTP/1.1\r\n' +
`Host: ${req.headers.host}\r\n` +
'Connection: Upgrade\r\n' +
'Upgrade: tcp\r\n';
if (req.headers['content-type'] === 'application/json') {
// TODO we have to parse the immediate upgrade request body, but I don't know how
let plainBody = '{"Detach":false,"Tty":false}\r\n';
upgradeMessage += `Content-Type: application/json\r\n`;
upgradeMessage += `Content-Length: ${Buffer.byteLength(plainBody)}\r\n`;
upgradeMessage += '\r\n';
upgradeMessage += plainBody;
}
upgradeMessage += '\r\n';
// resend the upgrade event to the docker daemon, so it responds with the proper message through the pipes
remote.write(req.method + ' ' + req.url + ' HTTP/1.1\r\n' +
`Host: ${req.headers.host}\r\n` +
'Connection: Upgrade\r\n' +
'Upgrade: tcp\r\n' +
'\r\n'
);
remote.write(upgradeMessage);
// two-way pipes between client and docker daemon
client.pipe(remote).pipe(client);
});
});
}