CentOS in CI for Linux releases

[nschonni]

Here are the dockerfiles I use. They're a hodge podge of copy-paste and hacks to get things working over the years. Odds are parts of it aren't needed anymore.

centos 6 (node <= 10)

FROM centos:6

### setup ###

RUN true && \
    printf \
    "\
[devtools-32]\n\
name=CentOS 5 devtools 32bit\n\
baseurl=http://people.centos.org/tru/devtools-2/6/i386/RPMS\n\
gpgcheck=0\n\
    " > \
    /etc/yum.repos.d/devtools32.repo && \
    printf \
    "\
[devtools-64]\n\
name=CentOS 5 devtools 64bit\n\
baseurl=http://people.centos.org/tru/devtools-2/6/x86_64/RPMS\n\
gpgcheck=0\n\
    " > \
    /etc/yum.repos.d/devtools64.repo

RUN yum install -y centos-release-scl

RUN yum install -y \
    curl wget make file which python27 \
    # curl wget make file which python26 \
    devtoolset-2-{gcc,gcc.i686,gcc-c++,gcc-c++.i686,binutils,binutils.i686,libstdc++-devel,libstdc++-devel.i686} \
    glibc-{devel,devel.i686} && \
    yum clean all

### put cc/gcc in PATH ###

ENV PATH /opt/rh/devtoolset-2/root/usr/bin:$PATH

### install nvm ###

RUN mkdir ~/.nvm && \
    wget --no-check-certificate -O ~/.nvm/nvm.sh https://raw.githubusercontent.com/xzyfer/nvm/master/nvm.sh

### make nvm work for iojs ###

RUN mkdir -p ~/.nvm/versions/{node,io.js}

### make nvm command avialable ###

ENV BASH_ENV="~/.bashrc"
RUN echo 'export NVM_DIR="$HOME/.nvm"' >> ~/.bashrc
RUN echo '[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"' >> ~/.bashrc

### allow mounting of node-sass ###

VOLUME /node-sass

### the main event

RUN source ~/.nvm/nvm.sh && nvm install 10

$ docker build --tag xzyfer/node-sass-10:latest - < Dockerfile
$ docker run -v ~/node-sass:/node-sass -w /node-sass -it --rm xzyfer/node-sass-10:latest scl enable python27 "nvm run stable ./scripts/build.js -f"

centos 7 (node > 10)

FROM centos:7

### setup ###
RUN yum install -y centos-release-scl

RUN yum install -y \
    curl wget make file which \
    devtoolset-7-{gcc,gcc.i686,gcc-c++,gcc-c++.i686,binutils,binutils.i686,libstdc++-devel,libstdc++-devel.i686} \
    yum clean all

### put cc/gcc in PATH ###

ENV PATH /opt/rh/devtoolset-2/root/usr/bin:$PATH
# ENV PATH /opt/rh/devtoolset-6/root/usr/bin:$PATH

### install nvm ###

RUN mkdir ~/.nvm && \
    wget --no-check-certificate -O ~/.nvm/nvm.sh https://raw.githubusercontent.com/xzyfer/nvm/master/nvm.sh

### make nvm work for iojs ###

RUN mkdir -p ~/.nvm/versions/{node,io.js}

### make nvm command avialable ###

ENV BASH_ENV="~/.bashrc"
RUN echo 'export NVM_DIR="$HOME/.nvm"' >> ~/.bashrc
RUN echo '[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"' >> ~/.bashrc

### allow mounting of node-sass ###

VOLUME /node-sass

### the main event

RUN source ~/.nvm/nvm.sh && nvm install 14

$ docker build --tag xzyfer/node-sass-14:latest - < Dockerfile
$ docker run -v ~/node-sass:/node-sass -w /node-sass -it --rm xzyfer/node-sass-14:latest scl enable devtoolset-7 -- nvm run stable ./scripts/build.js -f

Originally posted by @xzyfer in https://github.com/sass/node-sass/issues/3019#issuecomment-721675437

[nschonni]

Started playing around with this over in https://github.com/nschonni/node-sass/tree/centos I tried to match the newer devtoolset-6/8 used by the upstream NodeJS versions that I saw in the compiler selector in nodejs/build. That hasn't worked out so well so far 😆

[saper]

The problem is you can't use a newer C++ library coming with a toolset since most "normal" users will not have it...