The nova.virt.powervm.common Module

class Connection(host, username, password, port=22, keyfile=None)

Bases: object

aix_path_join(path_one, path_two)

Ensures file path is built correctly for remote UNIX system

Parameters:

• path_one – string of the first file path
• path_two – string of the second file path

Returns:

a uniform path constructed from both strings

ftp_get_command(connection, remote_path, local_path)

Retrieve a file via FTP

Parameters:

• connection – a Connection object.
• remote_path – path to the remote file
• local_path – path to local destination

Raises :

PowerVMFileTransferFailed

ftp_put_command(connection, local_path, remote_dir)

Method to transfer a file via ftp.

Parameters:

• connection – a Connection object.
• local_path – path to the local file
• remote_dir – path to remote destination

Raises :

PowerVMFileTransferFailed

ssh_command_as_root(ssh_connection, cmd, check_exit_code=True)

Method to execute remote command as root.

Parameters:

• connection – an active paramiko.SSHClient connection.
• command – string containing the command to run.

Returns:

Tuple – a tuple of (stdout, stderr)

Raises :

nova.exception.ProcessExecutionError

ssh_connect(connection)

Method to connect to remote system using ssh protocol.

Parameters:connection – a Connection object. Returns:paramiko.SSHClient – an active ssh connection. Raises :PowerVMConnectionFailed

vios_to_vios_auth(*args, **kwds)

Context allowing for SSH between VIOS partitions

This context will build an SSH key on the source host, put the key into the authorized_keys on the destination host, and make the private key file name available within the context. The key files and key inserted into authorized_keys will be removed when the context exits.

Parameters:

• source – source IP or DNS name
• dest – destination IP or DNS name
• conn_info – dictionary object with SSH connection information for both hosts