Restore Dockerfile
Restore Dockerfile


Former-commit-id: f487ce7b38190c027bb1666c2caaf24b79c63eee
tomdee/libcalico,plwhite/libcalico,djosborne/libcalico,projectcalico/libnetwork-plugin,L-MA/libcalico,Symmetric/libcalico,alexhersh/libcalico,TrimBiggs/libnetwork-plugin,tomdee/libnetwork-plugin,projectcalico/libcalico,TrimBiggs/libnetwork-plugin,robbrockbank/libcalico,caseydavenport/libcalico,TrimBiggs/libcalico,insequent/libcalico