gem install on alpine3.16.1: ERROR: Failed to build gem native extension

[Poweranimal]

Hi,

Installing the cfn-nag (v0.8.10) gem on alpine3.16.1 fails with the following error:

ERROR

Building native extensions. This could take a while...
ERROR:  Error installing cfn-nag:
        ERROR: Failed to build gem native extension.

    current directory: /usr/local/bundle/gems/psych-3.3.2/ext/psych
/usr/local/bin/ruby -I /usr/local/lib/ruby/3.1.0 -r ./siteconf20220730-14-dy0ixb.rb extconf.rb
checking for yaml.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/usr/local/bin/$(RUBY_BASE_NAME)
        --with-libyaml-dir
        --without-libyaml-dir
        --with-libyaml-include
        --without-libyaml-include=${libyaml-dir}/include
        --with-libyaml-lib
        --without-libyaml-lib=${libyaml-dir}/lib
        --enable-bundled-libyaml
        --disable-bundled-libyaml
/usr/local/lib/ruby/3.1.0/mkmf.rb:498:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:624:in `block in try_compile'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:573:in `with_werror'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:624:in `try_compile'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:1213:in `block in find_header'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:1007:in `block in checking_for'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:362:in `block (2 levels) in postpone'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:332:in `open'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:362:in `block in postpone'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:332:in `open'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:358:in `postpone'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:1006:in `checking_for'
        from /usr/local/lib/ruby/3.1.0/mkmf.rb:1212:in `find_header'
        from extconf.rb:10:in `<main>'

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /usr/local/bundle/extensions/x86_64-linux-musl/3.1.0/psych-3.3.2/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /usr/local/bundle/gems/psych-3.3.2 for inspection.
Results logged to /usr/local/bundle/extensions/x86_64-linux-musl/3.1.0/psych-3.3.2/gem_make.out

Steps to reproduce

Dockerfile:

FROM docker.io/alpine:3.16.1
RUN apk add --no-cache ruby-dev=3.1.2-r0 &&\
    gem install cfn-nag -v 0.8.10

Run docker build

[manuelnucci]

I got the same error today.

[crise1929]

@Poweranimal
@manuelnucci
I had the same problem. To solve it, I had to install 3 packages before the command "gem install cfn-nag"
Here is my Dockerfile from ruby 3.3 in Alpine 3.20. Try the apk add...

ARG RUBY_VERSION=3.3
FROM ruby:${RUBY_VERSION}-alpine

ARG PKG_LIST='gcc musl-dev make'
RUN apk add --no-cache ${PKG_LIST} \
 && gem update --system \
 && gem install cfn-nag \
 && apk del --purge --rdepends --no-cache ${PKG_LIST}

ENTRYPOINT ["cfn_nag"]
CMD ["--help"]