Install OS libraries

turpialdev

Hello Opalstack community:

I was wondering what are the guidelines to "install" libraries in the OS.

I'm migrating a Django site from WF and it uses PDF libraries that require some extra steps.

In WF, there is a bin folder to place files to run detect and run the libraries. The steps there were the following:

Library WKHTMLTOPDF

Download the package:

wget downloads.wkhtmltopdf.org/0.12/0.12.4/wkhtmltox-0.12.4_linux-generic-amd64.tar.xz

Then, extract. The result is a folder called wkhtmltox. This folder was moved inside the bin folder in my app.

I checked that the install was correct by verifying the path using which wkhtmltopdf

Library PDFTK

For this library, the following commands were executed:

cd ~
wget linuxglobal.com/static/blog/pdftk-2.02-1.el7.x86_64.rpm
rpm2cpio pdftk-2.02-1.el7.x86_64.rpm | cpio -idmv
export LD_LIBRARY_PATH=$HOME/usr/lib64
export PATH=$HOME/usr/bin:$PATH

What would be the equivalent of these steps (in both cases) in order to get the libraries working for my project?

Thanks in advance.

sean

turpialdev all of that should work here as well.

Note that wkhtmltopdf is already installed and ready to use on our servers, so you probably don't need to install that yourself.

[xxx@opal1 ~]$ wkhtmltopdf --version
wkhtmltopdf 0.12.4

turpialdev

sean after giving it much use while developing further our PDF functionalities in two projects (2 different VPS accounts), I had to "install" my own version of WKHTMLTOPDF.

The reason for that is that the version already installed in the server seems to be like a "lite" version, so it's missing some libraries or functions, therefore eventually, when trying to generate the PDF, it threw an error and after much try/error and lots of reading, we found out it was the library version.

So, my suggestion for you guys is to replace the version you are installing in the instances with a complete one. The one I used was this one:

https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.4/wkhtmltox-0.12.4_linux-generic-amd64.tar.xz

But this is a generic, full, version for headless servers or just to run on it's own parallel to any other (like I did given how Opalstack servers work).

As I'm sure you'll know, in the website https://wkhtmltopdf.org/downloads.html you can find the RPM of the latest 0.12.6 version if you like.

Regards.

turpialdev

Thank you Sean. It worked perfectly

sean

turpialdev we're using the wkhtmltopdf provided by CentOS.

There's an additional package "wkhtmltopdf-opt" that I've just installed on your server. Can you let me know if that has added the extra features you're looking for?

deatul

sean could you please upgrade my account to use wkhtmltopdf 0.12.6? as older version has bugs and only way to get correct width is to use newer version https://github.com/wkhtmltopdf/wkhtmltopdf/issues/3969#issuecomment-399026967

sean

deatul you can install the newer version into your shell user's home directory by running the following commands in a SSH session:

mkdir -p ~/opt ~/bin
cd ~/opt
wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox-0.12.6-1.centos7.x86_64.rpm
rpm2cpio wkhtmltox-0.12.6-1.centos7.x86_64.rpm | cpio -idmv
ln -s $HOME/opt/usr/local/bin/* ~/bin/
export PATH=$HOME/bin:$PATH

At that point the new version should work in your shell:

[xxx@opalX ~]$ wkhtmltopdf --version
wkhtmltopdf 0.12.6 (with patched qt)

deatul

sean It worked, thank you very much !!