python - Can I make a juju action pass a file back to where it was called from? - Ask Ubuntu

the docs describe "snapshot" action, backs database. have used similar wondering, once snapshot create file (in case postgresql dump) sits there on machine particular charm. there not way of passing machine run "juju run-action ..." command in first place? (i'm not sure of terminology here, i'm going call "host")

i'm using python, , know can use hookenv.action_set({}) pass message back, whole file? suppose use pass contents of file back, seems bit hacky.

if use like: host_ip, _, machine_ip, __ = os.environ['ssh_connection'].split(' ') , try scp file using host_ip information, wants password, isn't automated.

does have suggestions doing within action please?

you send shh private key in charm action,

$ juju run-action ssh_pkey=`cat .ssh/somekey` 

and add public key host authorized_keys.

or set host key in charm config

$ juju config myservice key=`cat .ssh/somekey`