Docker Compose Invalid Option r on Gateway Restore

Gurus,
is there something wrong with my docker-compose file?

image

r seems to be an invalid options as per logs.

image

You've got the syntax right, but that function wasn't added to the official image until 8.1.6. If you must use that specific version in a Docker container, you could use my "unofficial" image, though note that the syntax/usage is slightly different.

https://hub.docker.com/r/kcollins/ignition

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