tree e3c0e1d2e4edbd34232d10412a8d02ca6e946d48
parent ce2ae85469abf600467ea8f82d29a3bc868fabe9
author Gregory Thiemonge <gthiemon@redhat.com> 1574246036 +0100
committer Gregory Thiemonge <gthiemon@redhat.com> 1574246324 +0100

Close ssh client after executing a command

Each time ssh.Client.exec_command is called, _get_ssh_connection creates
a new SSHClient instance.
If this instance is not closed after command execution, it might cause a
shortage of resources on the host (many open sockets, and dropbear
processes in a cirros VM).

This commit closes ssh client after processing the remote command.

Closes-Bug: #1853264

Change-Id: If77f401d6d4a1282ce31a31bbd8827db34690e52