How to Access Docker Image Labels with Periods in Their Names?

Accessing Docker Image Labels with Periods in Names

Docker's docker inspect command provides a means to retrieve labels associated with Docker images. However, accessing labels with periods (".") in their names using the --format option poses a challenge.

To bypass the limitations of the --format option, the index function offers a solution. This function allows users to retrieve values from a map-like structure based on a specified key.

In the bash script, the following syntax can be utilized:

docker inspect -f '{{ index .Config.Labels "com.wherever.foo" }}' <image-name>

This command will return the value associated with the label "com.wherever.foo" from the JSON output of the docker inspect command.

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