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gcloud compute tpus tpu-vm ssh

NAME
gcloud compute tpus tpu-vm ssh - SSH into a Cloud TPU VM
SYNOPSIS
gcloud compute tpus tpu-vm ssh [USER@]TPU [--dry-run] [--force-key-file-overwrite] [--internal-ip] [--plain] [--ssh-flag=SSH_FLAG] [--ssh-key-file=SSH_KEY_FILE] [--strict-host-key-checking=STRICT_HOST_KEY_CHECKING] [--worker=WORKER; default="0"] [--zone=ZONE] [--command=COMMAND --output-directory=OUTPUT_DIRECTORY] [--ssh-key-expiration=SSH_KEY_EXPIRATION     | --ssh-key-expire-after=SSH_KEY_EXPIRE_AFTER] [GCLOUD_WIDE_FLAG …] [-- SSH_ARGS …]
DESCRIPTION
SSH into a Cloud TPU VM.
EXAMPLES
To SSH into a Cloud TPU VM, run: 
gcloud compute tpus tpu-vm ssh my-tpu

To SSH into worker 1 on a Cloud TPU VM Pod, run: 

gcloud compute tpus tpu-vm ssh my-tpu --worker=1

To run an SSH command in a Cloud TPU VM (for example, to print the time since last boot), run: 

gcloud compute tpus tpu-vm ssh my-tpu --command="last boot"

To run the same command in all workers in a Cloud TPU VM simultaneously, run: 

gcloud compute tpus tpu-vm ssh my-tpu --command="last boot" --worker=all
POSITIONAL ARGUMENTS
[USER@]TPU
Specifies the Cloud TPU VM to SSH into.

USER specifies the username with which to SSH. If omitted, the user login name is used.

TPU specifies the name of the Cloud TPU VM to SSH into.
[-- SSH_ARGS …]
Flags and positionals passed to the underlying ssh implementation. The '--' argument must be specified between gcloud specific args on the left and SSH_ARGS on the right. Example: 
gcloud compute tpus tpu-vm ssh example-instance --zone=us-central1-a -- -vvv -L 80:%TPU%:80
FLAGS
--dry-run
Print the equivalent scp/ssh command that would be run to stdout, instead of executing it.
--force-key-file-overwrite
If enabled, the gcloud command-line tool will regenerate and overwrite the files associated with a broken SSH key without asking for confirmation in both interactive and non-interactive environments. If disabled, the files associated with a broken SSH key will not be regenerated and will fail in both interactive and non-interactive environments.
--internal-ip
Connect to TPU VMs using their internal IP addresses rather than their external IP addresses. Use this to connect from a Google Compute Engine VM to a TPU VM on the same VPC network, or between two peered VPC networks.
--plain
Suppress the automatic addition of ssh(1)/scp(1) flags. This flag is useful if you want to take care of authentication yourself or use specific ssh/scp features.
--ssh-flag=SSH_FLAG
Additional flags to be passed to ssh(1). It is recommended that flags be passed using an assignment operator and quotes. Example: 
gcloud compute tpus tpu-vm ssh example-instance --zone=us-central1-a --ssh-flag="-vvv" --ssh-flag="-L 80:localhost:80"

This flag will replace occurences of %USER% and %TPU% with their dereferenced values. For example, passing ``80:%TPU%:80`` into the flag is equivalent to passing 80:162.222.181.197:80 to ssh(1) if the external IP address of 'example-instance' is 162.222.181.197.

If connecting to the instance's external IP, then %TPU% is replaced with that, otherwise it is replaced with the internal IP.
--ssh-key-file=SSH_KEY_FILE
The path to the SSH key file. By default, this is ~/.ssh/google_compute_engine.
--strict-host-key-checking=STRICT_HOST_KEY_CHECKING
Override the default behavior of StrictHostKeyChecking for the connection. By default, StrictHostKeyChecking is set to 'no' the first time you connect to an instance, and will be set to 'yes' for all subsequent connections. STRICT_HOST_KEY_CHECKING must be one of: yes, no, ask.
--worker=WORKER; default="0"
TPU worker to connect to. The supported value is a single 0-based index of the worker in the case of a TPU Pod. When also using the --command flag, it additionally supports a comma-separated list (e.g. '1,4,6'), range (e.g. '1-3'), or special keyword ``all" to run the command concurrently on each of the specified workers. Note that when targeting multiple workers, you should run 'ssh-add' with your private key prior to executing the gcloud command. Default: 'ssh-add ~/.ssh/google_compute_engine'.
--zone=ZONE
Zone of the tpu to ssh. If not specified and the compute/zone property isn't set, you might be prompted to select a zone (interactive mode only).

To avoid prompting when this flag is omitted, you can set the compute/zone property: 

gcloud config set compute/zone ZONE

A list of zones can be fetched by running: 

gcloud compute zones list

To unset the property, run: 

gcloud config unset compute/zone
 Alternatively, the zone can be stored in the environment variable CLOUDSDK_COMPUTE_ZONE. These arguments are used to run commands using SSH.
--command=COMMAND
Command to run on the Cloud TPU VM.

Runs the command on the target Cloud TPU VM and then exits.

Note: in the case of a TPU Pod, it will only run the command in the workers specified with the --worker flag (defaults to worker 0 if not set).
--output-directory=OUTPUT_DIRECTORY
Path to the directory to output the logs of the commands.

The path can be relative or absolute. The directory must already exist.

If not specified, standard output will be used.

The logs will be written in files named {WORKER_ID}.log. For example: "2.log".
At most one of these can be specified:
--ssh-key-expiration=SSH_KEY_EXPIRATION
The time when the ssh key will be valid until, such as "2017-08-29T18:52:51.142Z." This is only valid if the instance is not using OS Login. See $ gcloud topic datetimes for information on time formats.
--ssh-key-expire-after=SSH_KEY_EXPIRE_AFTER
The maximum length of time an SSH key is valid for once created and installed, e.g. 2m for 2 minutes. See $ gcloud topic datetimes for information on duration formats.
GCLOUD WIDE FLAGS
These flags are available to all commands: --access-token-file, --account, --billing-project, --configuration, --flags-file, --flatten, --format, --help, --impersonate-service-account, --log-http, --project, --quiet, --trace-token, --user-output-enabled, --verbosity.

Run $ gcloud help for details.

NOTES
This variant is also available: 
gcloud alpha compute tpus tpu-vm ssh