I am having docker Demon running on a ubuntu ec2 host.
I am able to setup an sshd conatainer on this ubuntu ec2 host and able to ssh in from the docker host .i.e.
ubuntu@ip-172-16-27-205:~/docker-work$ sudo docker run -d -P --name ssh-enabled ssh-enabled bb7f535124b3df403ae97da770fe2e4a4969a7ecddfb5d546aaddfe00e40374d ubuntu@ip-172-16-27-205:~/docker-work$ sudo docker port ssh-enabled 22/tcp -> 0.0.0.0:32768 ubuntu@ip-172-16-27-205:~/docker-work$ ssh firstname.lastname@example.org -p 32768 The authenticity of host '[127.0.0.1]:32768 ([127.0.0.1]:32768)' can't be established. ECDSA key fingerprint is e6:74:aa:52:8e:3d:19:7a:92:da:85:d4:b9:f9:ed:f1. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '[127.0.0.1]:32768' (ECDSA) to the list of known hosts. email@example.com's password: Welcome to Ubuntu 14.04 LTS (GNU/Linux 3.19.0-30-generic x86_64) * Documentation: https://help.ubuntu.com/ The programs included with the Ubuntu system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. root@bb7f535124b3:~#
However I am not sure how could I connect to this container from outside docker host.
I can ssh to docker host from an outside machine like below
ssh -i /home/xxxxxx/xxxxxxxxx.pem firstname.lastname@example.org
however I wish to ssh directly to container
docker container is up as shown with below command response
ubuntu@ip-172-16-27-205:~/docker-work$ sudo docker ps -as CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES SIZE bb7f535124b3 ssh-enabled "/usr/sbin/sshd -D" 8 minutes ago Up 8 minutes 0.0.0.0:32768->22/tcp ssh-enabled 32.51 kB (virtual 868.4 MB)
as the docker host is listening on port 32768 When I try to ssh container with user root it fails
rbharadwaj@syd01-devops-ansible02:~$ ssh -i '/home/xxxxx/xxxxxxx.pem' email@example.com -p 32768 -v OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8 debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8 pat OpenSSH_6.6.1* compat 0x04000000 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client firstname.lastname@example.org <implicit> none debug1: kex: client->server email@example.com <implicit> none debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ED25519 3e:6a:c6:9e:34:98:2e:81:b5:e1:88:d1:15:63:bb:41 debug1: checking without port identifier The authenticity of host '[172.16.27.205]:32768 ([172.16.27.205]:32768)' can't be established. ED25519 key fingerprint is 3e:6a:c6:9e:34:98:2e:81:b5:e1:88:d1:15:63:bb:41. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '[172.16.27.205]:32768' (ED25519) to the list of known hosts. debug1: ssh_ed25519_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying private key: /home/rbharadwaj/syd01-devops-ruc-app-instances debug1: key_parse_private2: missing begin marker debug1: read PEM private key done: type RSA debug1: Authentications that can continue: publickey,password debug1: No more authentication methods to try. Permission denied (publickey,password).
Thinking the private key is of user Ubuntu I also tried to ssh into container like below however it fails
ssh -i '/home/xxxx/xxxxx.pem' firstname.lastname@example.org -p 32768
kindly suggest how can I can connect to container directly in above scenario