htesgaard

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Add this file to /path/to/prefs/filetypes/
Restart IDE

This page will help you find the correct directory.

Ansible

Understanding Ansible

Ansible is a powerful, simple, and easy to use tool for managing computers. It is most often used to update programs and configuration on dozens of servers at once, but the abstractions are the same whether you're managing one computer or a hundred. Ansible can even do "fun" things like change the desktop photo or backup personal files to the cloud. It can take a while to learn how to use Ansible because it has an extensive terminology, but once you understand the why and the how of Ansible, its power is readily apparent.

Ansible's power comes from its simplicity. Under the hood, Ansible is just a domain specific language (DSL) for a task runner for a secure shell (ssh). You write ansible yaml (.yml) files which describe the tasks which must run to turn plain old / virtualized / cloud computers into production ready server-beasts. These tasks, in turn, have easy to understand names like "copy", "file", "command", "ping", or "lineinfile". Each of these turns into shell comma

Working with ansible-vault

I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

Default

Powerlevel10k

Git

Global Settings

Related Setup: https://gist.github.com/hofmannsven/6814278
Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/
Interactive Beginners Tutorial: http://try.github.io/
Git Cheatsheet by GitHub: https://services.github.com/on-demand/downloads/github-git-cheat-sheet/

Reminder

Press minus + shift + s and return to chop/fold long lines!

	#!/bin/bash
	# Usage
	# $ ./install-cert-macos.sh "/path/to/cert"
	CERT_PATH="$1"

	# First, grab the SHA-1 from the provided SSL cert.
	CERT_SHA1=$(openssl x509 -in "$CERT_PATH" -sha1 -noout -fingerprint \| cut -d "=" -f2 \| sed "s/://g")

	# Next, grab the SHA-1s of any standard.dev certs in the keychain.
	# Don't return an error code if nothing is found.

	1. Setup a project

	2. Add groovy SDK support:
	https://www.bonusbits.com/wiki/HowTo:Add_Groovy_SDK_to_IntelliJ_IDEA

	3. Download http://(yourjenkinsurl)/job/(yourpipelinejob)/pipeline-syntax/gdsl
	- this will give you the .gdsl file - download this to the src folder of your project.

	4. Finally follow this step - right click on the src folder -> Mark directory as -> Sources Root

	- Tune /etc/ssh/sshd_config

	UseDNS no # Disable DNS lookups
	GSSAPIAuthentication no # Disable negotation of slow GSSAPI

	don't forget to restart it, use a script provider to set it , or create it with veewee or snapshot it

	- Tune Vagrantfile

	vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]