Use "--no-install-recommends" to avoid installing many packages that aren't needed, many are *-doc packages. Also start using the -slim base image as they remove a few unused files/directories, like docs/.
Explicitly install "ca-certificates" as it is only recommended for "wget". Explicitly install "ocaml-findlib" as it is only recommended for "libfindlib-ocaml-dev". Using "--no-install-recommends" saves about 600MB on the uncompress image. 2.89GB vs 2.3GB (value from `docker image list`). Switching to -slim save about 130MB. Overwall, we go from 2.89GB to 2.17GB. Signed-off-by: Anthony PERARD <[email protected]> --- Notes: Change to use "-slim" was proposed by Andy. I went futher and added --no-install-recommends. I've tried to find other missing packages by looking at differences in "tools/config.log", "stubdom/config.log", "config/", and "xen/.config". A test is in progress to check that no jobs are broken, but result probably not before next week. https://gitlab.com/xen-project/people/anthonyper/xen/-/pipelines/795600920 I've only tested gcc debug=n on x86_64 locally. automation/build/debian/unstable-i386.dockerfile | 6 ++++-- automation/build/debian/unstable.dockerfile | 6 ++++-- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/automation/build/debian/unstable-i386.dockerfile b/automation/build/debian/unstable-i386.dockerfile index 1c4928b09e..cc116d32e9 100644 --- a/automation/build/debian/unstable-i386.dockerfile +++ b/automation/build/debian/unstable-i386.dockerfile @@ -1,4 +1,4 @@ -FROM i386/debian:unstable +FROM i386/debian:unstable-slim LABEL maintainer.name="The Xen Project" \ maintainer.email="[email protected]" @@ -12,7 +12,8 @@ ENTRYPOINT ["linux32"] # build depends RUN apt-get update && \ - apt-get --quiet --yes install \ + apt-get --quiet --no-install-recommends --yes install \ + ca-certificates \ build-essential \ zlib1g-dev \ libncurses5-dev \ @@ -35,6 +36,7 @@ RUN apt-get update && \ libc6-dev \ libnl-3-dev \ ocaml-nox \ + ocaml-findlib \ libfindlib-ocaml-dev \ markdown \ transfig \ diff --git a/automation/build/debian/unstable.dockerfile b/automation/build/debian/unstable.dockerfile index 6ef2878200..06ac909a85 100644 --- a/automation/build/debian/unstable.dockerfile +++ b/automation/build/debian/unstable.dockerfile @@ -1,4 +1,4 @@ -FROM debian:unstable +FROM debian:unstable-slim LABEL maintainer.name="The Xen Project" \ maintainer.email="[email protected]" @@ -10,7 +10,8 @@ WORKDIR /build # build depends RUN apt-get update && \ - apt-get --quiet --yes install \ + apt-get --quiet --no-install-recommends --yes install \ + ca-certificates \ build-essential \ zlib1g-dev \ libncurses5-dev \ @@ -34,6 +35,7 @@ RUN apt-get update && \ libc6-dev-i386 \ libnl-3-dev \ ocaml-nox \ + ocaml-findlib \ libfindlib-ocaml-dev \ markdown \ transfig \ -- Anthony PERARD
