Can not ssh to gitlab.com

[uboot]

I can not connect to gitlab.com via SSH from the workspace console. As a consequence I can not clone gitlab repositories by their SSH address.

Reproduction Steps:

• Create a VCS SSH key for gitlab.com in Codenvy (via "Profile" -> "Preferences", as explained in the documentation). Add the public key to your gitlab account.

• In the Codenvy console enter:
  > ssh -v git@gitlab.com

Expected behavior:
SSH connection should at least be established (even if the command above fails at a later stage). Cf. connecting to github.com.

Observed behavior:

OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to gitlab.com [104.210.2.228] port 22.
debug1: connect to address 104.210.2.228 port 22: Connection timed out
ssh: connect to host gitlab.com port 22: Connection timed out

Codenvy version: 5.0.0-M6 rev 219dac8
OS and version: hosted on codenvy.io

[TylerJewell]

@JamesDrummond - please take a look.

[ghost]

@uboot we restrict outgoing traffic from workspaces at the moment.

I'll ask admins to whitelist gitlab.com

[ghost]

@uboot can you please give it a try again? After gitlab.com has been whitelisted, it works for me.

[uboot]

Everthing works fine if I create the SSH key on the CLI and import it via "Profile" -> "Preferences" -> "VCS" -> "Upload Key". If I create the key with "Generate Key", cloning a Gitlab-Repo from the SSH URL fails. However, this might be the same problem as #573 and or #491. Thanks a lot!