FROM gcr.io/google-appengine/debian9@sha256:1d6a9a6d106bd795098f60f4abb7083626354fa6735e81743c7f8cfca11259f0
LABEL foo=bar
LABEL "baz"="bat"
ENV label1 "mylabel"
LABEL label1=$label1
LABEL multilabel1=multilabel1 multilabel2=multilabel2 multilabel3=multilabel3