RVM install with jemalloc

[prdanelli]

Hello, I searched your previous issues but couldn't find anything related to this, but I apologise if its the wrong place.

I am dockerizing a large rails app and trying to use Passenger Docker as a base, however I cannot seem to find a way to RVM install ruby with the -C -with-jemalloc flag appended.

I tried adding RUN /usr/local/rvm/bin/rvm reinstall ruby-2.6.5 -C -with-jemalloc after the initial FROM phusion/passenger-ruby26, however this seems to error when compiling:

Step 4/23 : RUN /usr/local/rvm/bin/rvm reinstall ruby-2.6.5 -C -with-jemalloc
 ---> Running in a9907366cc38
ruby-2.6.5 - #removing rubies/ruby-2.6.5..
Checking requirements for ubuntu.
Installing requirements for ubuntu.
Updating system.....
Installing required packages: automake....
Requirements installation successful.
Installing Ruby from source to: /usr/local/rvm/rubies/ruby-2.6.5, this may take a while depending on your cpu(s)...
ruby-2.6.5 - #downloading ruby-2.6.5, this may take a while depending on your connection...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 13.4M  100 13.4M    0     0  5323k      0  0:00:02  0:00:02 --:--:-- 5323k
No checksum for downloaded archive, recording checksum in user configuration.
ruby-2.6.5 - #extracting ruby-2.6.5 to /usr/local/rvm/src/ruby-2.6.5.....
ruby-2.6.5 - #configuring..........................
Error running './configure --prefix=/usr/local/rvm/rubies/ruby-2.6.5 -with-jemalloc --disable-install-doc --enable-shared',
please read /usr/local/rvm/log/1586007632_ruby-2.6.5/configure.log
There has been an error while running configure. Halting the installation.

Is there a flag that can be added or an environment variable that I am unaware of, or is this just something you do not support?

I'll add my full Dockerfile for reference below:

FROM madnight/docker-alpine-wkhtmltopdf as wkhtmltopdf-builder
FROM prwhitehead/vips-alpine:latest as vips-builder

FROM phusion/passenger-ruby26 AS base

RUN curl -s https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
	echo 'deb https://deb.nodesource.com/node_10.x xenial main' > /etc/apt/sources.list.d/nodesource.list && \
 	curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -  && \
 	echo "deb https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list && \
 	apt-add-repository -y "deb http://security.ubuntu.com/ubuntu bionic-security main" && \
 	apt-get update -qq && \
 	apt-get install -y -qq --no-install-recommends \
 		software-properties-common build-essential python pkg-config glib2.0-dev libexpat1-dev yarn tzdata imagemagick xvfb redis-tools ruby-dev && \
	rm -rf /var/lib/apt/lists/*

RUN rm -fv /etc/nginx/sites-enabled/default /etc/service/nginx/down
COPY docker/nginx/vhost.conf /etc/nginx/sites-enabled/default
COPY docker/nginx/env.conf /etc/nginx/main.d/env.conf
COPY docker/nginx/passenger.conf /etc/nginx/conf.d/passenger.conf
COPY docker/nginx/client_max_body_size.conf /etc/nginx/conf.d/client_max_body_size.conf

WORKDIR /home/app

# Bundler
COPY --chown=app:app Gemfile* /home/app/
ENV LANG=C.UTF-8 BUNDLE_JOBS=4 BUNDLE_RETRY=3
RUN gem install bundler
RUN bundle config --global github.https true
RUN bundle install

COPY --chown=app:app package* yarn* /home/app/
ENV PATH /home/app/node_modules/.bin:$PATH
RUN yarn install

COPY --from=wkhtmltopdf-builder --chown=app:app /bin/wkhtmltopdf /usr/local/bin/
COPY --from=vips-builder --chown=app:app /usr/bin/vips /usr/local/bin/
COPY --chown=app:app . /home/app

USER app

Thank you in advance,
Paul.

[Gasparila]

Hi @prwhitehead, if it helps, this is what we do for our rails monolith:

FROM phusion/passenger-customizable as base
.....
# replace the ruby install line to add jemalloc
RUN sed -i 's/rvm install $RVM_ID/rvm install $RVM_ID -C --with-jemalloc/' /pd_build/ruby-2.6.sh
RUN /pd_build/ruby-2.6.sh

[prdanelli]

Hello @Gasparila, thank you for taking the time to reply.

Have you copied the pd_builder files to your local file system, as the code above gives me the following error when I build:

Status: Downloaded newer image for phusion/passenger-customizable:latest
 ---> 92515871b85b
Step 3/32 : RUN sed -i 's/rvm install $RVM_ID/rvm install $RVM_ID -C --with-jemalloc/' /pd_build/ruby-2.6.sh
 ---> Running in c287665f53a9
sed: can't read /pd_build/ruby-2.6.sh: No such file or directory
ERROR: Service 'web' failed to build: The command '/bin/sh -c sed -i 's/rvm install $RVM_ID/rvm install $RVM_ID -C --with-jemalloc/' /pd_build/ruby-2.6.sh' returned a non-zero code: 2

[Gasparila]

If you are on latest you'll need to specify full ruby name ruby-2.6.5.sh. List of available shell files: https://github.com/phusion/passenger-docker/tree/master/image (image gets copied into /pd_build in https://github.com/phusion/passenger-docker/blob/master/image/Dockerfile#L4)
so

FROM phusion/passenger-customizable as base
.....
# replace the ruby install line to add jemalloc
RUN sed -i 's/rvm install $RVM_ID/rvm install $RVM_ID -C --with-jemalloc/' /pd_build/ruby-2.6.5.sh
RUN /pd_build/ruby-2.6.5.sh

Should work

[prdanelli]

@Gasparila Thank you so much for your help. I'll check it out and see if I can get it working :)

[rept]

@Gasparila I'm following this thread too. I tried out your config, it built fine.

However when I try to validate it's using Jemalloc like this:

ruby -r rbconfig -e "puts RbConfig::CONFIG['LIBS']"

It doesn't seem to be the case. (I've also installed libjemalloc-dev and also set LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1)

Any ideas? @prwhitehead did it work on your end?

[rept]

Hmmm ignore, apparently the check is now:

MALLOC_CONF=stats_print:true ruby -e "exit"

If you see stats ouput, it's working.

source: gaffneyc/heroku-buildpack-jemalloc#5 (comment)

[CamJN]

I'm going to close this as it's not something we're going to actively support.