Use upx to make binary smaller. v5.11.16

focal/Dockerfile

@@ -2,19 +2,33 @@ ARG ARCH
 
 FROM ${ARCH}ossrs/srs:ubuntu20 AS build
 FROM ${ARCH}redis:5.0 AS redis
+
 FROM ${ARCH}goacme/lego AS lego
 
+# https://github.com/upx/upx
+FROM ${ARCH}ubuntu:focal AS upx
+
+# https://serverfault.com/questions/949991/how-to-install-tzdata-on-a-ubuntu-docker-image
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -y && apt-get install -y upx
+
+COPY --from=lego /lego /usr/local/bin/
+RUN upx --best --lzma /usr/local/bin/lego
+
+COPY --from=build /usr/local/bin/ffmpeg /usr/local/bin/ffprobe /usr/local/bin/
+RUN upx --best --lzma /usr/local/bin/ffmpeg
+RUN upx --best --lzma /usr/local/bin/ffprobe
+
 # http://releases.ubuntu.com/focal/
 FROM ${ARCH}ubuntu:focal AS dist
 
  # certs: For HTTPS client, or failed as: x509: certificate signed by unknown authority
  # redis: For redis server and tools.
  # lego: For ACME client, request and renew the HTTPS certificate.
-COPY --from=build /usr/local/bin/ffmpeg /usr/local/bin/ffprobe /usr/local/bin/
 COPY --from=build /etc/ssl/certs /etc/ssl/certs
 COPY --from=build /usr/share/ca-certificates /usr/share/ca-certificates
 COPY --from=redis /usr/local/bin/redis-cli /usr/local/bin/redis-server /usr/local/bin/
-COPY --from=lego /lego /usr/local/bin/
+COPY --from=upx /usr/local/bin/lego /usr/local/bin/ffmpeg /usr/local/bin/ffprobe /usr/local/bin/
 
 # We write the common config for platform to base image, however you can
 # overwrite it if not for platform, for example, used in releases.