github.com/containers/podman/v5@v5.1.0-rc1/docs/source/markdown/options/cache-from.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  #### **--cache-from**=*image*
     6  
     7  Repository to utilize as a potential cache source. When specified, Buildah tries to look for
     8  cache images in the specified repository and attempts to pull cache images instead of actually
     9  executing the build steps locally. Buildah only attempts to pull previously cached images if they
    10  are considered as valid cache hits.
    11  
    12  Use the `--cache-to` option to populate a remote repository with cache content.
    13  
    14  Example
    15  
    16  ```bash
    17  # populate a cache and also consult it
    18  buildah build -t test --layers --cache-to registry/myrepo/cache --cache-from registry/myrepo/cache .
    19  ```
    20  
    21  Note: `--cache-from` option is ignored unless `--layers` is specified.