The lazy programmer scripts
scripts that work

Overview for ubuntu

Lazy upgrade GitLab

Upgrading or installing GitLab can be a very simple or very complicated endeavor, depending on how you perform it and what are your requirements.

In my setup, I had GitLab version 12.6.3-ee.0 installed using Omnibus on an Ubuntu 18.04. At the moment, the latest version of GitLab is 13.3, but I chose to upgrade to the latest version of 13.2.x, as I considered it more stable. I will upgrade to 13.3.x when 13.4.x appears.

These are the raw information I used when choosing the upgrade path:

I chose to perform the upgrade in multiple stages, 7 to be more exact:

  • 12.6.3 -> 12.6.8 -> 12.7.9 -> 12.8.10 -> 12.9.10 -> 12.10.14 -> 13.0.14 ->13.2.9

I have chosen the path as I wanted to perform upgrades between minor version to minor version. In addition, upgrade 12.6.3 -> 12.6.8 was added for a safer patch to patch version upgrade (according to semantic versioning MAJOR.MINOR.PATCH).

Besides the apt upgrade, two manual interventions were required:

  • update unicorn settings when upgrading from 12.6.3-ee.0 to 12.6.8-ee.0
  • upgrade postgres version to v11 after installing GitLab version 12.8.10-ee.0

The following script should not be run automatically, as things can go wrong between every upgrade. Perform functional tests between every upgrade to make sure GitLab works as expected.

The commands should be run with administrative privileges (sudo).

Written by kami on Friday September 11, 2020
Permalink - Tags: linux, bash, gitlab, ubuntu, git, apt

Lazy optimize running Linux from USB stick

Installing a Linux distro on a USB stick is as easy as installing it on a normal HDD / SDD.

Making that Linux work well on that USB stick was quite hard, as there is little or no information on the Internet.

Note: booting and running Linux from a USB stick will be slow and it will most likely shorten the life of your USB stick in the long run.

My setup consisted of a i7 Lenovo laptop and a 128GB Kingston HyperX Savage USB 3.0, which supposedly has 350MB / 250MB sequential read / write speed.

I chose Ubuntu 19.10 ISO netboot, which I flashed using Rufus on another USB 2.0 stick.

The following bash commands were run under root user after I successfully installed Ubuntu 19.10 on the 128GB Kinston HyperX Savage USB 3.0 stick.

Written by kami on Saturday October 5, 2019
Permalink - Tags: linux, usb, ubuntu, ubuntu19.10, optimization, kernel, sysctl

Lazy create sudo user

Creating users on Linux is trivial, but creating a user with sudo rights and no password confirmation when using sudo is not.

The script must be run under user root.

Tested on Ubuntu, Debian, CentOS and RHEL.

Written by kami on Friday December 8, 2017
Permalink - Tags: bash, linux, ubuntu, rhel, centos