linux/amd64=REGISTRY/agnhost:2.21-linux-amd64
linux/arm=REGISTRY/agnhost:2.21-linux-arm
linux/arm64=REGISTRY/agnhost:2.21-linux-arm64
linux/ppc64le=REGISTRY/agnhost:2.21-linux-ppc64le
linux/s390x=REGISTRY/agnhost:2.21-linux-s390x
windows/amd64/1809=REGISTRY/agnhost:2.21-windows-amd64-1809
windows/amd64/1903=REGISTRY/agnhost:2.21-windows-amd64-1903
windows/amd64/1909=REGISTRY/agnhost:2.21-windows-amd64-1909
