jina.peapods.runtimes.ssh

class jina.peapods.runtimes.ssh.SSHRuntime(args)

Bases: jina.peapods.runtimes.zmq.base.ZMQManyRuntime

Simple SSH based SSHRuntime for remote Pea management .. note:

It requires one to upload host public key to the remote
1. ssh-keygen -b 4096
2. scp ~/.ssh/id_rsa.pub username@hostname:~/.ssh/authorized_keys

Note

As the terminal signal is sent via send_terminate_signal() from BasePea, there is no need to override/implement close() method. Lifecycle is handled by BasePea.

setup()

Method called to prepare the runtime inside S. Optional in subclasses. The default implementation does nothing.

Note

If this method raises any exception, then run_forever() and teardown() won’t be called.

Note

Unlike __init__() called in M, setup() is called inside S.

run_forever()

Running the blocking procedure inside S. Note, once this method is called, S is blocked.

Note

If this method raises any exception, teardown() will be called.

See also

cancel() for cancelling the forever loop.

teardown()

Method called immediately after run_forever() is unblocked. You can tidy up things here. Optional in subclasses. The default implementation does nothing.

Note

This method will only be called if the setup() succeeds.