Increase default shm_size

[cesine]

Fixes #308

The default shared memory size for docker is 64M, this increases it to 512M.

What is a good default size?

In a few places it appears to be 2GB that is the recommendation for browser testing

• https://lightrun.com/answers/cypress-io-cypress-cypress-hangs-during-execution-of-test-suite
• https://datawookie.dev/blog/2021/11/shared-memory-docker/

It appears that many cypress users have benefited from 512M https://github.com/cypress-io/cypress-docker-images/issues/308 and https://github.com/cypress-io/cypress/issues/350#issuecomment-353572782 so I went with a smaller value.

How this was tested

$ docker build --shm-size 512M -t cypress/browsers:node18.6.0-chrome105-ff104 --platform linux/amd64 .Sending build context to Docker daemon  8.704kB
Step 1/14 : FROM cypress/base:18.6.0
 ---> d36ac569f3bb
Step 2/14 : USER root
 ---> Using cache
 ---> 4ebfdf933e8f
Step 3/14 : RUN node --version
 ---> Using cache
 ---> c5209c17c5c7
Step 4/14 : COPY ./global-profile.sh /tmp/global-profile.sh
 ---> Using cache
 ---> 091f9c18af47
Step 5/14 : RUN cat /tmp/global-profile.sh >> /etc/bash.bashrc && rm /tmp/global-profile.sh
 ---> Using cache
 ---> f015c1b6becd
Step 6/14 : RUN apt-get update &&   apt-get install -y   fonts-liberation   git   libcurl4   libcurl3-gnutls   libcurl3-nss   xdg-utils   wget   curl   bzip2   mplayer     && rm -rf /var/lib/apt/lists/*   && apt-get clean
 ---> Using cache
 ---> 7e3ae4df58db
Step 7/14 : RUN wget --no-verbose /usr/src/libappindicator3-1_0.4.92-7_amd64.deb "http://ftp.us.debian.org/debian/pool/main/liba/libappindicator/libappindicator3-1_0.4.92-7_amd64.deb" &&   dpkg -i /usr/src/libappindicator3-1_0.4.92-7_amd64.deb ;   apt-get install -f -y &&   rm -f /usr/src/libappindicator3-1_0.4.92-7_amd64.deb
 ---> Using cache
 ---> 138e60199a89
Step 8/14 : RUN node -p "process.arch === 'arm64' ? 'Not downloading Chrome since we are on arm64: https://crbug.com/677140' : process.exit(1)" ||   (wget --no-verbose -O /usr/src/google-chrome-stable_current_amd64.deb "http://dl.google.com/linux/chrome/deb/pool/main/g/google-chrome-stable/google-chrome-stable_105.0.5195.102-1_amd64.deb" &&   dpkg -i /usr/src/google-chrome-stable_current_amd64.deb ;   apt-get install -f -y &&   rm -f /usr/src/google-chrome-stable_current_amd64.deb)
 ---> Using cache
 ---> b7a4317b895f
Step 9/14 : ENV DBUS_SESSION_BUS_ADDRESS=/dev/null
 ---> Using cache
 ---> 5d9fe0821324
Step 10/14 : RUN node -p "process.arch === 'arm64' ? 'Not downloading Firefox since we are on arm64: https://bugzilla.mozilla.org/show_bug.cgi?id=1678342' : process.exit(1)" ||   (wget --no-verbose -O /tmp/firefox.tar.bz2 https://download-installer.cdn.mozilla.net/pub/firefox/releases/104.0.1/linux-x86_64/en-US/firefox-104.0.1.tar.bz2 &&   tar -C /opt -xjf /tmp/firefox.tar.bz2 &&   rm /tmp/firefox.tar.bz2 &&   ln -fs /opt/firefox/firefox /usr/bin/firefox)
 ---> Using cache
 ---> b15d3a995118
Step 11/14 : RUN echo  " node version:    $(node -v) \n"   "npm version:     $(npm -v) \n"   "yarn version:    $(yarn -v) \n"   "debian version:  $(cat /etc/debian_version) \n"   "Chrome version:  $(google-chrome --version) \n"   "Firefox version: $(firefox --version) \n"   "Edge version:    n/a \n"   "git version:     $(git --version) \n"   "whoami:          $(whoami) \n"
 ---> Using cache
 ---> 99009d673cf9
Step 12/14 : ENV TERM=xterm
 ---> Using cache
 ---> 6b76ff4ee3ea
Step 13/14 : ENV npm_config_loglevel=warn
 ---> Using cache
 ---> a8d6fe592c93
Step 14/14 : ENV npm_config_unsafe_perm=true
 ---> Using cache
 ---> 8ca1e6372cb1
Successfully built 8ca1e6372cb1
Successfully tagged cypress/browsers:node18.6.0-chrome105-ff104

[CLAassistant]

All committers have signed the CLA.

[admah]

@cesine is this ready for review or still a draft PR?

[cesine]

Still a draft. When I tested it, i didn't find it was working.

We worked around this by refactoring the tests that were longer than 4minutes.

[mjhenkes]

We can close this pr, it seem that we've resolved shm usage in another way.

In 7.0.1, Cypress passes disable-dev-shm-usage to Chrome and Electron on startup, which should remove the need to use --ipc=host or increase the /dev/shm size. Once it's released this should be solved.

see this comment: https://github.com/cypress-io/cypress/issues/350#issuecomment-814959972