How to connect with a key signed by a certificate authority? #858
Description
I need my node.js app to connect to a target machine using a key signed by a certificate authority.
When connecting from a terminal, the following 3 commands work:
eval "$(ssh-agent -s)"
ssh-add
ssh -i <path to signed key> [email protected]
In order to do it from my node.js app, I first start the ssh-agent and add the identity:
eval "$(ssh-agent -s)"
ssh-add
and launch the following node.js app with the environment variables of the ssh agent:
SSH_AUTH_SOCK=<socket> SSH_AGENT_PID=<pid> node app.js
This is the code I'm using to connect:
conn = new SSHClient();
conn.on('ready', function() {
socket.emit('data', 'Connection to ' + asset.ip + ' established\n');
conn.shell(function(err, stream) {
if (err)
return socket.emit('data', 'Connection to ' + asset.ip + ' shell error: ' + err.message + ' \n');
socket.on('data', function(data) {
stream.write(data);
});
stream.on('data', function(d) {
socket.emit('data', d.toString('binary'));
}).on('close', function() {
conn.end();
});
});
}).on('close', function() {
socket.emit('data', 'Connection to ' + asset.ip + ' closed.\n');
}).on('error', function(err) {
socket.emit('data', 'Connection to ' + asset.ip + ' ERROR: ' + err.message + '\n');
}).connect({
host: asset.ip,
port: 22,
username: asset.login,
privateKey: require('fs').readFileSync('<path to signed key>'),
agent: process.env.SSH_AUTH_SOCK
});
When trying to connect I get the error:
privateKey value does not contain a (valid) private key
I struggled with the code, tried it with few configurations and couldn't find the right way to make it work.
Any idea how I should start this connection?