g++ is no longer needed

[Baltazardoung]

Related #2 (comment) and after release ffi 1.15.1 (with ffi/ffi#897), I tested installed tcc (and declare CC environment variable)...

FROM ruby:2.7.3-alpine3.13

ARG VERSION=3.19.1

RUN apk add --no-cache libcurl xz-libs \
 && apk add tcc --repository http://dl-3.alpinelinux.org/alpine/edge/testing/ \
 && apk add --no-cache --virtual tmp build-base libxml2-dev libxslt-dev \
 && gem install html-proofer --version "= $VERSION" --no-document \
 && apk del tmp

ENV CC=tcc

VOLUME /src
WORKDIR /src

ENTRYPOINT ["htmlproofer"]

Image is working and is smaller again....

But when I looked more closely at the build logs, I saw that the gcc was also installed again :

Step 3/7 : RUN apk add --no-cache libcurl xz-libs  && apk add tcc --repository http://dl-3.alpinelinux.org/alpine/edge/testing/  && apk add --no-cache --virtual tmp build-base libxml2-dev libxslt-dev  && gem install html-proofer --version "= $VERSION" --no-document  && apk del tmp
 ---> Running in 1005a26060ff
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz
(1/4) Installing brotli-libs (1.0.9-r3)
(2/4) Installing nghttp2-libs (1.42.0-r1)
(3/4) Installing libcurl (7.76.1-r0)
(4/4) Installing xz-libs (5.2.5-r0)
OK: 21 MiB in 40 packages
fetch http://dl-3.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz
(1/1) Installing tcc (0.9.27-r1)
Executing busybox-1.32.1-r6.trigger
OK: 22 MiB in 41 packages
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz
(1/25) Installing binutils (2.35.2-r1)
(2/25) Installing libmagic (5.39-r0)
(3/25) Installing file (5.39-r0)
(4/25) Installing libgomp (10.2.1_pre1-r3)
(5/25) Installing libatomic (10.2.1_pre1-r3)
(6/25) Installing libgphobos (10.2.1_pre1-r3)
(7/25) Installing isl22 (0.22-r0)
(8/25) Installing mpfr4 (4.1.0-r0)
(9/25) Installing mpc1 (1.2.0-r0)
(10/25) Installing gcc (10.2.1_pre1-r3)
(11/25) Installing musl-dev (1.2.2-r0)
(12/25) Installing libc-dev (0.7.2-r3)
(13/25) Installing g++ (10.2.1_pre1-r3)
(14/25) Installing make (4.3-r0)
(15/25) Installing fortify-headers (1.1-r0)
(16/25) Installing patch (2.7.6-r6)
(17/25) Installing build-base (0.5-r2)
(18/25) Installing xz-dev (5.2.5-r0)
(19/25) Installing libxml2 (2.9.10-r6)
(20/25) Installing libxml2-dev (2.9.10-r6)
(21/25) Installing libgpg-error (1.41-r0)
(22/25) Installing libgcrypt (1.8.7-r0)
(23/25) Installing libxslt (1.1.34-r0)
(24/25) Installing libxslt-dev (1.1.34-r0)
(25/25) Installing tmp (20210523.081624)
Executing busybox-1.32.1-r6.trigger
OK: 220 MiB in 66 packages
Successfully installed public_suffix-4.0.6
Successfully installed addressable-2.7.0
Successfully installed mercenary-0.4.0
Successfully installed nokogiri-1.11.5-x86_64-linux
Building native extensions. This could take a while...
Successfully installed nokogumbo-2.0.5
Successfully installed parallel-1.20.1
Successfully installed rainbow-3.0.0
Building native extensions. This could take a while...
Successfully installed ffi-1.15.1
Successfully installed ethon-0.14.0
Successfully installed typhoeus-1.4.0
Successfully installed yell-2.2.2
Successfully installed html-proofer-3.19.1
12 gems installed
(1/25) Purging tmp (20210523.081624)
(2/25) Purging build-base (0.5-r2)
(3/25) Purging file (5.39-r0)
(4/25) Purging g++ (10.2.1_pre1-r3)
(5/25) Purging gcc (10.2.1_pre1-r3)
(6/25) Purging binutils (2.35.2-r1)
(7/25) Purging libatomic (10.2.1_pre1-r3)
(8/25) Purging libgomp (10.2.1_pre1-r3)
(9/25) Purging libgphobos (10.2.1_pre1-r3)
(10/25) Purging make (4.3-r0)
(11/25) Purging libc-dev (0.7.2-r3)
(12/25) Purging musl-dev (1.2.2-r0)
(13/25) Purging fortify-headers (1.1-r0)
(14/25) Purging patch (2.7.6-r6)
(15/25) Purging libxslt-dev (1.1.34-r0)
(16/25) Purging libxslt (1.1.34-r0)
(17/25) Purging libmagic (5.39-r0)
(18/25) Purging isl22 (0.22-r0)
(19/25) Purging mpc1 (1.2.0-r0)
(20/25) Purging mpfr4 (4.1.0-r0)
(21/25) Purging libxml2-dev (2.9.10-r6)
(22/25) Purging libxml2 (2.9.10-r6)
(23/25) Purging xz-dev (5.2.5-r0)
(24/25) Purging libgcrypt (1.8.7-r0)
(25/25) Purging libgpg-error (1.41-r0)
Executing busybox-1.32.1-r6.trigger
OK: 22 MiB in 41 packages

So I tried to go back to the initial version of the dockerfile (without the addition of g++). And it worked too !

So I would say that the g++ dependency can be removed here.

... Do you confirm ?

[klakegg]

I can confirm. The latest release is back to small image sizes again. 😄