gce_ssh_setup: Setup a SSH connection with GCE from a new SSH key-pair

Description

Uploads ssh-keys to an instance

Usage

gce_ssh_setup(instance, key.pub = NULL, key.private = NULL,
  ssh_overwrite = FALSE, username = Sys.info()[["user"]])

Arguments

instance

Name of the instance of run ssh command upon

key.pub

The filepath location of the public key

key.private

The filepath location of the private key

ssh_overwrite

Will check if SSH settings already set and overwrite them if TRUE

username

The username you used to generate the key-pair

Value

TRUE if successful

Details

This loads a public ssh-key to an instance's metadata. It does not use the project SSH-Keys, that may be set separately.

You will need to generate a new SSH key-pair if you have not connected to an instance before.

Instructions for this can be found here: https://cloud.google.com/compute/docs/instances/connecting-to-instance. Once you have generated run this function once to initiate setup.

If you have historically connected via gcloud or some other means, ssh keys may have been generated automatically.

These will be looked for and used if found, at file.path(Sys.getenv("HOME"), ".ssh", "google_compute_engine.pub")

Examples

Run this code

# NOT RUN {
# }
# NOT RUN {
  
  library(googleComputeEngineR)
  
  vm <- gce_vm("my-instance")
  
  ## if you have already logged in via gcloud, the default keys will be used
  ## no need to run gce_ssh_addkeys
  ## run command on instance            
  gce_ssh(vm, "echo foo")
  
  
  ## if running on Windows, use the RStudio default SSH client
  ## e.g. add C:\Program Files\RStudio\bin\msys-ssh-1000-18 to your PATH
  ## then run: 
  vm2 <- gce_vm("my-instance2")

  ## add SSH info to the VM object
  ## custom info
  vm <- gce_ssh_setup(vm,
                      username = "mark", 
                      key.pub = "C://.ssh/id_rsa.pub",
                      key.private = "C://.ssh/id_rsa")
                      
  ## run command on instance            
  gce_ssh(vm, "echo foo")
  #> foo

  ## example to check logs of rstudio docker container
  gce_ssh(vm, "sudo journalctl -u rstudio")

# }

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