I want to use xvfb to automate the process to create thumbnails images on urls from my site.
It is not clear where I should download a standalone xvfb application.
Where do I download the package?
How do I build the package?
Are there any other packages to create images of a rendered url on the linux server using php or shell scripting?
I am on Linux Red Hat Enterprise Linux Server release 5.5 (Tikanga)
After some search, I find it's part of the XFree86 implementation of X11. http://ftp.xfree86.org/pub/XFree86/4.8.0/binaries/Linux-x86_64-glibc23/
Update: the above link is dead. If you're using a standard linux OS, try search xvfb with system package manager (e.g. apt or yum)
sudo yum install -y xorg-x11-server-Xvfb
or
It's available on the Client, Workstation, and Server Optional Channels inside RHN: (Note the URLs here will prompt for your redhat support account)
https://rhn.redhat.com/network/software/packages/name_overview.pxt?package_name=xorg-x11-server-Xvfb&archIdList=&archLabelList=&search_subscribed_channels=yes
Related
I want to use USBIP in an Ubuntu 20.04 Docker Container. I tried installing the "linux-tools-generic" Package, but when i run USBIP afterwards i get the message:
You may need to install the following packages for this specific kernel:
linux-tools-5.10.16.3-microsoft-standard-WSL2
linux-cloud-tools-5.10.16.3-microsoft-standard-WSL2
You may also want to install one of the following packages to keep up to date:
linux-tools-standard-WSL2
linux-cloud-tools-standard-WSL2
How can i install these Packages ? Could'nt find them with apt-get.
Since Docker relies on the features of the Linux kernel, you'll need to make sure that you have the USB/IP module compiled into your WSL kernel. It is not there in the stock WSL kernel, so you'll need to build your own. I haven't done this with USB/IP myself, but there are reports from the Home Assistant (home automation) forums that indicate that it works.
See this answer for more details.
I'm SSH'd into a Docker VM (the default machine) and did a apt-get update and this is what I got:
I'm not a huge Linux user; how do I install apt in a Docker machine? I'm ultimately wanting to install vim and/or nano via apt-install on the machine.
Working with TinyCore distribution and installing apt is not a good selection. instead you could use lubuntu
TinyCore Dist comes with tce-load package. Which you can use to download the packages. example:
tce-load -wi vim.tcz or tce-load -wi nano.tcz
ASR has the correct answer. I just wanted to include some things in case others read this post.
A list of available packages for Tiny Core Linux (TCL) is here (note, I have TCL version 8.2.1 installed and this list of showing for TCL version 10.x, but I think the package names stay the same for the most part):
http://distro.ibiblio.org/tinycorelinux/10.x/x86/tcz/
And a TCL cheat sheet for installing packages is here:
http://wiki.tinycorelinux.net/wiki:package_management_cheat_sheet
End result: =)
As there are no package managers apt, yum, apk inside docker machine, my case docker toolbox on Windows, and windows does not dispone with Linux package managers unless using cygwin or other workaround, I used Windows 10 Pro Ubuntu subsystem, where it is possible to use apt.
I need to have Jenkins and Java on a Windows container and I am investigating whether to use Windows Server Core or Windows Nano Server.
So that the assembly of the container is fast and the movement of DEV to PRO is agile. I see better Nano Server because it occupies 300MB instead of Server Core that occupies about 5 GB.
The problem comes when I want to install something in Nano Server. I tried to install Chocolatey but it is only compatible with the Server Core version, which makes me think that it is not advisable to use Nano Server for this functionality.
Is it advisable to use Nano Server to have Jenkins and Java or is it intended for another use?
The first reason (possibly among quite a few) why you should use Windows Server Core is that Nano Server does not support MSI installer files, which makes installing Jenkins more difficult.
I have a ruby on rails app running on a Google Cloud Platform VM running on the app engine flexible environment. It looks like it installs most of the software on the VM when I deploy the app with gcloud --project project-name preview app deploy I think it installs rails and other software from reading the temporary dockerfile it creates. It grabs the info for the dockerfile from the app.yaml file (I got this setup from following their tutorials).
This was working fine for me but now I need to install ImageMagick onto the server to manipulate images on the site. Normally you do this by running sudo apt-get install imagemagick from the project directory. When I SSH onto the VM I cant find the project directory so that doesn't work.
I have no idea how to get it to run sudo apt-get install imagemagick each time I make a new deploy to the site so it has the software on the new VM.
As you might be able to tell I'm not very good with the server side of things and want to know what I'm supposed to do to get new software onto the VM the right way so its always there like ruby and rails etc.. are each time I make a new deploy.
You should use a custom Dockerfile when you need additional configuration.
To install ImageMagics you have to set runtime: custom in your app.yaml, create a Dockerfile based on default one, and add following line:
RUN apt-get update && \
apt-get install imagemagick -y
I have downloaded docker binary version 1.8.2 and copied that to my backup server (centos server) which doesn't have internet connectivity. I have marked this as executable and started the docker daemon as mentioned in [https://docs.docker.com/engine/installation/binaries/][1]. But it doesn't seem to get installed as a docker service. For all the commands, I have to execute as sudo ./docker-1.8.2 {command}. Is there a way to install docker-engine as a service? Currently sudo docker version shows command not found. I'm a newbie to docker setup. Please advise.
Why not download the rpm package (there are also centos 6 packages), copy to USB stick and then to your server and simply install it with rpm command and that's it. That way you'd get the same installation as if you were to run yum.
Of course you may have some dependencies missing, but you could download all of these as well.
Firstly, if you're downloading bare binaries on an enterprise linux, you're probably doing things in a very bad way. Immediately, you're breaking updates and consistency, and leaving your system in a risky, messy state.
Try using yumdownloader --resolve to get the docker installable and anything it needs.
A better option may be to mirror the installation artifacts, and grab it from the local mirror, but that's beyond the scope if you don't do this already.