Jenkins credentials plugin hides secrets like passwords and SSH or API keys by encrypting them. Nevertheless these credentials can be decrypted and printed in a plain text. In this note i will show 2 ways of how to decrypt secrets masked by Jenkins credentials plugin.
Ansible Debug: Print Variable & List All Variables – Playbook
During Ansible playbook debugging it is useful to know how to display host facts or registered variables. To print a message from Ansible playbook, as well as a value of a variable, we can use Ansible debug module. In the examples below i am showing how to print particular Ansible variables and how to list […]
Jenkins Pipeline: How to Define a Variable – Jenkins Variables
Variables in a Jenkinsfile can be defined by using the def keyword. Such variables should be defined before the pipeline block starts. When variable is defined, it can be called from the Jenkins declarative pipeline using ${…} syntax.
Jenkins Pipeline: Conditionally Define Variables – Groovy Script
The Groovy scripting language supports conditional structures, that can be used in Jenkins pipelines. Assume that you have a parametrized Jenkins job and in a Jenkinsfile you have a variable that should be defined depending on provided parameters. Here is an example of how to conditionally define variables in a Jenkins pipeline using the Groovy […]
SSH: Create Public Key from Private
Usually a public SSH key is generated at the same time as a private key. Unlike a private SSH key, it is acceptable to lose a public key as it can be generated again from a private key at any time. In this small note i am showing how to create a public SSH key […]
Git – Squash Commits: Merge All Commits in Branch Into One
Each time you are working on a bug or a feature, you create a branch for it. Usually, while working in such temporary branches, you make multiply commits without bothering a lot about commit messages and simply comment the changes with something like “work in progress” or just “WIP”. Before merging such branch into master […]
Windows CMD: PATH Variable – Add To PATH – Echo PATH
PATH is an environment variable that specifies a set of directories, separated with semicolons (;), where executable programs are located. In this note i am showing how to print the contents of Windows PATH environment variable from the Windows command prompt. I am also showing how to add a directory to Windows PATH permanently or […]
Get SSL Certificate from Server (Site URL) – Export & Download
Someday you may need to get the SSL certificate of a website and save it locally. For example, you could get an error saying that you can’t clone a Git repository due to a self-signed certificate and to resolve this issue you would need to download the SSL certificate and make it trusted by your […]
Sublime Text: Install Package (Plugin) – Package Control
Sublime Text is one of the most popular code editors with a lot of built-in features. The functionality of Sublime Text can be extremely extended by hundreds of useful plugins. The easiest way to install a package (plugin) for Sublime Text is to use Package Control – the package manager for Sublime Text.
Python: How To Use Pip – Basic Commands
What is Pip? pip is a tool for installing and managing Python packages. With pip command you can install, list, upgrade (update), downgrade and uninstall Python packages. In this post i am showing how to use pip from the command line by giving examples of the basic pip commands.