headless chrome

https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

https://developers.google.com/web/updates/2017/04/headless-chrome

install headless chrome on centos 7

/etc/yum.repos.d/google-chrome.repo

[google-chrome]
name=google-chrome
baseurl=http://dl.google.com/linux/chrome/rpm/stable/$basearch
enabled=1
gpgcheck=1
gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub

yum info google-chrome-stable
yum install google-chrome-stable

[root@server222 yum.repos.d]# google-chrome --headless --hide-scrollbars --remote-debugging-port=9222 --disable-gpu
Trace/breakpoint trap
[root@server222 yum.repos.d]# [0100/000000.302671:ERROR:broker_posix.cc(41)] Invalid node channel message

https://bugs.chromium.org/p/chromium/issues/detail?id=695212#c15

yum install mesa-libOSMesa-devel gnu-free-sans-fonts

run headless chrome

$ google-chrome \
  --headless \
  --disable-gpu \
  --remote-debugging-port=9222 \
  https://www.chromestatus.com

travis-ci

https://github.com/travis-ci/travis-ci/issues/7650#issuecomment-306909354

allow remote host to access 9222 (default port)

on the machine which is running headless chrome, run command bellow

ifconfig # get headless machine's IP, example 1.2.3.4
ssh -L 0.0.0.0:9223:localhost:9222 localhost -N # input password for user on headless machine

on remote host access http://1.2.3.4:9223

FAQ

$ google-chrome --headless --hide-scrollbars --remote-debugging-port=9222 --disable-gpu

[0831/162756.001979:ERROR:gl_implementation.cc(246)] Failed to load /opt/google/chrome/libosmesa.so: /opt/google/chrome/libosmesa.so: cannot open shared object file: No such file or directory
[0831/162756.002793:ERROR:gpu_child_thread.cc(264)] Exiting GPU process due to errors during initialization
[0831/162756.032619:ERROR:gl_implementation.cc(246)] Failed to load /opt/google/chrome/libosmesa.so: /opt/google/chrome/libosmesa.so: cannot open shared object file: No such file or directory
[0831/162756.033427:ERROR:gpu_child_thread.cc(264)] Exiting GPU process due to errors during initialization

for ubuntu 16.04

sudo apt install libosmesa6-dev
sudo ln -s /usr/lib/x86_64-linux-gnu/libOSMesa.so /opt/google/chrome/libosmesa.so

for centos 7 (not tested)

sudo yum install mesa-libOSMesa-devel
ln -s /usr/lib64/libOSMesa.so.8 /opt/google/chrome/libosmesa.so

https://medium.com/@dschnr/using-headless-chrome-as-an-automated-screenshot-tool-4b07dffba79a

See also

References