Also: images json test: rewrite to actually check for
keys instead of just number of lines. Reason: when using
older podman to prefetch (in f29), 'history' key is lost,
giving us 26 lines of output instead of 30.
Signed-off-by: Ed Santiago <santiago@redhat.com>
When passing an environment variable to a Containerfile using an `ARG` command,
the dry-run processing for `COPY` and `ADD` isn't resolving the environment
variable for the source and is causing a failure.
Now convert the source if it's an environment variable to its value and then
proceed on. The destination doesn't have a similar issue at this point
but we'll convert it too just in case.
Addresses: #1871
Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
Closes: #1874
Approved by: nalind
Ed Santiago
TomSweeneyRedHat