A list of values (multiple values) with gcloud (GCP)

Question

I'm trying to remove two tags "green" and "yellow" from the latest revision "editor-v2-0-0" on Cloud Run:

But when I ran the command with a list of two values "green" and "yellow" as shown below to remove two tags "green" and "yellow" from the latest revision "editor-v2-0-0":

gcloud run services update-traffic editor /
  --remove-tags=[green,yellow]
              // A list of 2 values

These two tags were not removed:

Even though the documentation says as shown below:

--remove-tags=[TAG,…]

List of tags to be removed.

But when I ran the command with one value "green" as shown below to remove one tag "green" from the latest revision "editor-v2-0-0":

gcloud run services update-traffic editor \
  --remove-tags=green
             // One value

I could remove one tag "green":

So, is it possible to remove two tags "green" and "yellow" from the latest revision "editor-v2-0-0" with the command which has a list of two values "green" and "yellow"? If possible, how can I do this?

Answer 1

Run the command without using square brackets "[]" as shown below:

gcloud run services update-traffic editor \
  --remove-tags=green,yellow
            // "[]" are removed

Then, two tags "green" and "yellow" are removed from the latest revision "editor-v2-0-0":

In addition, if there are one or more empty strings before or after a comma in a list, there is an error.

So, if an empty string is before a comma:

gcloud run services update-traffic editor \
  --remove-tags=green ,yellow
                  // An empty string before a comma  

Then, there is an error:

ERROR: (gcloud.run.services.update-traffic) unrecognized arguments: ,yellow

And if an empty string is after a comma:

gcloud run services update-traffic editor 
  --remove-tags=green, yellow
                   // An empty string after a comma

Then, there is an error:

ERROR: (gcloud.run.services.update-traffic) unrecognized arguments: yellow

So, don't put one or more empty strings before or after a comma in a list:

gcloud run services update-traffic editor \
  --remove-tags=green,yellow
                  // No empty strings 
                  // before or after a comma

In addition again, you can remove "=" just right to "--remove-tags" but it still works:

gcloud run services update-traffic editor \
  --remove-tags green,yellow
           // "=" is removed 
           // but it still works