MUP 1.5.8 won't connect to an EC2 instance running 22.04 using .pem

[julienfdev]

Hello team !

MUP won't connect through SSH to an EC2 instance running Ubuntu 22.04, running the same command on the same instance config, only running a 20.04 succeed :

Mup version (mup --version): 1.5.8

Mup config, interesting bit :
module.exports = {
servers: {
one: {
"host": "ec2-xx-xx-xx-xx.eu-west-3.compute.amazonaws.com",
"username": "ubuntu",
"pem": "./debug-meteor.pem",
}
},

Output of command :

Started TaskList: Setup Docker
[ec2-13-xx-xx-xxx.eu-west-3.compute.amazonaws.com] - Setup Docker
node:events:368
      throw er; // Unhandled 'error' event
      ^

Error: All configured authentication methods failed
    at doNextAuth (/Users/julien/.nvm/versions/node/v16.13.1/lib/node_modules/mup/node_modules/ssh2-classic/lib/client.js:413:17)
    at tryNextAuth (/Users/julien/.nvm/versions/node/v16.13.1/lib/node_modules/mup/node_modules/ssh2-classic/lib/client.js:484:5)
    at SSH2Stream.onUSERAUTH_FAILURE (/Users/julien/.nvm/versions/node/v16.13.1/lib/node_modules/mup/node_modules/ssh2-classic/lib/client.js:597:5)
    at SSH2Stream.emit (node:events:390:28)
    at parsePacket (/Users/julien/.nvm/versions/node/v16.13.1/lib/node_modules/mup/node_modules/ssh2-streams/lib/ssh.js:3682:10)
    at SSH2Stream._transform (/Users/julien/.nvm/versions/node/v16.13.1/lib/node_modules/mup/node_modules/ssh2-streams/lib/ssh.js:701:13)
    at SSH2Stream.Transform._write (node:internal/streams/transform:184:23)
    at writeOrBuffer (node:internal/streams/writable:389:12)
    at _write (node:internal/streams/writable:330:10)
    at SSH2Stream.Writable.write (node:internal/streams/writable:334:10)
    at Socket.ondata (node:internal/streams/readable:754:22)
    at Socket.emit (node:events:390:28)
    at addChunk (node:internal/streams/readable:315:12)
    at readableAddChunk (node:internal/streams/readable:289:9)
    at Socket.Readable.push (node:internal/streams/readable:228:10)
    at TCP.onStreamRead (node:internal/stream_base_commons:199:23)
Emitted 'error' event on Client instance at:
    at doNextAuth (/Users/julien/.nvm/versions/node/v16.13.1/lib/node_modules/mup/node_modules/ssh2-classic/lib/client.js:415:12)
    at tryNextAuth (/Users/julien/.nvm/versions/node/v16.13.1/lib/node_modules/mup/node_modules/ssh2-classic/lib/client.js:484:5)
    [... lines matching original stack trace ...]
    at TCP.onStreamRead (node:internal/stream_base_commons:199:23) {
  level: 'client-authentication'
}

This is no problem for the same instance, in the same subnet, with the same permissions and security groups, only running ubuntu 20.04

Cheers !

[gerwinbrunner]

Yeah, I have the similar problem with another 18.04 LTS works 22.04 LTS does not work.
Any idea?

[jankapunkt]

also doesn't work with ssh keys in the keyring:

  servers: {
    one: {
      host: 'xxx.xxx.xxx.xxx', // ip to machine
      username: 'someuser'
    }
  },

manual ssh via ssh someuser@xxx.xxx.xxx.xxx works. Server us Ubuntu 22.04

[jankapunkt]

Seems to come from an issue with ssh2.

There is a quick fix (at least for my use-case with public keys) but you need to do it manually on the target server: mscdex/ssh2#989 (comment)

cc @julienfdev @gerwinbrunner

[hwillson]

The workaround is also mentioned here: #974 (comment)