You have a small/mid sized server and you want to install new software or custom kernel on it. But it take forever to build anything on it compared to your brand new 8 or 12 core modern laptop with fast NVMe SSD.
In addition, you don´t want to pollute your server with all the build dependencies.
Docker is here to save the day, allowing you to create fast and disposable build environments.
-rw-r--r-- 1 fs fs 8.6M 2024-12-22 17:33 linux-headers-6.12.6-test_6.12.6-1_amd64.deb
-rw-r--r-- 1 fs fs 19M 2024-12-22 17:33 linux-image-6.12.6-test_6.12.6-1_amd64.deb
-rw-r--r-- 1 fs fs 285M 2024-12-22 17:33 linux-image-6.12.6-test-dbg_6.12.6-1_amd64.deb
-rw-r--r-- 1 fs fs 1.4M 2024-12-22 17:33 linux-libc-dev_6.12.6-1_amd64.deb
Here are two examples with linux kernel image and zfs-linux backport.
As I encountered some ruby problem with Vagrant on my Archlinux laptop, I decided to use Docker as a workaround.
$ vagrant
/usr/lib/ruby/3.3.0/rubygems/specification.rb:2245:in `raise_if_conflicts': Unable to activate vagrant_cloud-3.1.1, because rexml-3.3.2 conflicts with rexml (~> 3.2.5) (Gem::ConflictError)
from /usr/lib/ruby/3.3.0/rubygems/specification.rb:1383:in `activate'
from /usr/lib/ruby/3.3.0/rubygems/core_ext/kernel_gem.rb:62:in `block in gem'
from /usr/lib/ruby/3.3.0/rubygems/core_ext/kernel_gem.rb:62:in `synchronize'
from /usr/lib/ruby/3.3.0/rubygems/core_ext/kernel_gem.rb:62:in `gem'
from /opt/vagrant/embedded/gems/gems/vagrant-2.4.2/bin/vagrant:17:in `block in <main>'
from /opt/vagrant/embedded/gems/gems/vagrant-2.4.2/bin/vagrant:16:in `each'
from /opt/vagrant/embedded/gems/gems/vagrant-2.4.2/bin/vagrant:16:in `<main>'
So let’s create a Docker image, using a debian slim image and just install vagrant and some vagrant plugins.
BOSH is an open source project from Cloud Foundry that allow release engineering, software deployment and application lifecycle management of large scale and distributed system.
I wanted to take a look at it and fortunately it is possible to play on a local playground environment on VirtualBox using the bosh-lite instruction.