regctl blob diff-config
This returns the difference between two configs, comparing the contents of each config json.
regctl blob diff-config <repository> <digest> <repository> <digest> [flags]
# compare two versions of busybox
regctl blob diff-config \
busybox sha256:0c00acac9c2794adfa8bb7b13ef38504300b505a043bf68dff7a00068dcc732b \
busybox sha256:3f57d9401f8d42f986df300f0c69192fc41da28ccc8d797829467780db3dd741
--context int Lines of context (default 3)
--context-full Show all lines of context
--host stringArray Registry hosts to add (reg=registry,user=username,pass=password,tls=enabled)
--logopt stringArray Log options
--user-agent string Override user agent
-v, --verbosity string Log level (trace, debug, info, warn, error) (default "WARN")