Changing deployer container to alpine (#181)

Signed-off-by: John O'Loughlin <[email protected]>

Author: johnoloughlin

Diff for: docker/userspacecni/Dockerfile

@@ -13,7 +13,7 @@ RUN make generate-bin
 #End of builder container
 
 # Copy build userspace cni bin to a small deployer container
-FROM ubuntu:22.04
+FROM alpine:3.18
 RUN mkdir -p /root/userspace-cni-network-plugin/userspace
 COPY --from=builder /root/userspace-cni-network-plugin/userspace/userspace /root/userspace-cni-network-plugin/userspace/userspace
 CMD ["cp", "-rf", "/root/userspace-cni-network-plugin/userspace/userspace", "/opt/cni/bin"]