gcloud compute project-info add-metadata - add or update project-wide metadata

gcloud compute project-info add-metadata[--metadata=KEY=VALUE,[KEY=VALUE,…]][--metadata-from-file=KEY=LOCAL_FILE_PATH,[…]][GCLOUD_WIDE_FLAG …]

Only metadata keys that are provided are mutated. Existing metadata entries willremain unaffected.

If you are using this command to manage SSH keys for your project, please notetherisksof manual SSH key management as well as the required format for SSH keymetadata, available athttps://cloud.google.com/compute/docs/instances/adding-removing-ssh-keys

--metadata=KEY=VALUE,[KEY=VALUE,…]

Metadata to be made available to the guest operating system running on theinstances. Each metadata entry is a key/value pair separated by an equals sign.Each metadata key must be unique and have a max of 128 bytes in length. Eachvalue must have a max of 256 KB in length. Multiple arguments can be passed tothis flag, e.g.,--metadatakey-1=value-1,key-2=value-2,key-3=value-3. The combinedtotal size for all metadata entries is 512 KB.

In images that have Compute Engine tools installed on them, such as theofficial images, thefollowing metadata keys have special meanings:

startup-script

Specifies a script that will be executed by the instances once they startrunning. For convenience,--metadata-from-file can be used to pullthe value from a file.

startup-script-url

Same asstartup-script except that thescript contents are pulled from a publicly-accessible location on the web.For startup scripts on Windows instances, the following metadata keys havespecial meanings:windows-startup-script-url,windows-startup-script-cmd,windows-startup-script-bat,windows-startup-script-ps1,sysprep-specialize-script-url,sysprep-specialize-script-cmd,sysprep-specialize-script-bat, andsysprep-specialize-script-ps1. For moreinformation, seeRunning startupscripts.At least one of [--metadata] or [--metadata-from-file] is required.

--metadata-from-file=KEY=LOCAL_FILE_PATH,[…]

Same as--metadata except that the valuefor the entry will be read from a local file. This is useful for values that aretoo large such asstartup-script contents.At least one of [--metadata] or [--metadata-from-file] is required.

Run$gcloud help for details.