added passthrough options

[muschellij2]

Added passthrough options for a keyfile, as requested in meztez/plumberDeploy#12

Description

Now you can specify a keyfile for any operation that requires ssh. Related to #155

Related Issue

#155

[sckott]

thanks @muschellij2

sadly i still don't have tests for most things here. have you tested the added parameters yourself?

[muschellij2]

@Adamoso - I made this to try to address your issue at rstudio/plumber#524. Would you be able to test?

[arydelek]

Hello @muschellij2!
Thank you for addressing this issue. I will test it and share my results here.

[muschellij2]

Any thoughts on this? I think travis fails were due to DO tokens.

[sckott]

@muschellij2 are you asking me? or are you waiting on response from @Adamoso ?

[muschellij2]

Apologies, asking from @Adamoso. Also, unsure if the failures are true or false positives, which I think @sckott can answer. Also, just seeing if you need additional tests for this. I don't pass in keyfiles or other params to use this, but I think it could be useful if you do.

[arydelek]

@muschellij2 sorry for taking so long! I was finally able to test most of the functionalities with two different keys. Everything seems to function properly. I can't however find any reason the tests are failing as when I was using the modified functions without specifying new parameters it seemed to work just the same as before.

[sckott]

tests failing b/c token not available in PR's

having a look

[sckott]

looks good to me