github.com/containers/podman/v5@v5.1.0-rc1/docs/source/markdown/options/layer-label.md (about)

     1  ####> This option file is used in:
     2  ####>   podman build, farm build
     3  ####> If file is edited, make sure the changes
     4  ####> are applicable to all of those.
     5  #### **--layer-label**=*label[=value]*
     6  
     7  Add an intermediate image *label* (e.g. label=*value*) to the intermediate
     8  image metadata. It can be used multiple times.
     9  
    10  If *label* is named, but neither `=` nor a `value` is provided, then
    11  the *label* is set to an empty value.