Zeysh zeysh

Structured logs are way better than normal logs for a whole bunch of reasons, but they can sometimes be a pain to read in the shell. Take this logline for example:

{"erlang_pid":"#PID<0.1584.0>","level":"error","message":"Got error when retry: :econnrefused, will retry after 1535ms. Have retried 2 times, :infinity times left.","module":"","release":"c2ef629cb357c136f529abec997426d6d58de485","timestamp":"2019-12-17T19:22:11.164Z"}

This format is hard for a human to parse. How about this format instead?

error | 2019-12-17T19:21:02.944Z | Got error when retry: :econnrefused, will retry after 1648ms. Have retried 2 times, :infinity times left.

Kubernetes Commands

Helper setup to edit .yaml files with Vim:

VIM Setup for Yaml files

List of general purpose commands for Kubernetes management:

PODS
Create Deployments

AWS Service annotations

service.beta.kubernetes.io/aws-load-balancer-access-log-emit-interval (in minutes)
service.beta.kubernetes.io/aws-load-balancer-access-log-enabled (true|false)
service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-name
service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-prefix
service.beta.kubernetes.io/aws-load-balancer-additional-resource-tags (comma-separated list of key=value)
service.beta.kubernetes.io/aws-load-balancer-backend-protocol (http|https|ssl|tcp)
service.beta.kubernetes.io/aws-load-balancer-connection-draining-enabled (true|false)

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

bootcfg ACI Experiment

Note: Real bootcfg release ACIs are uploaded to coreos/coreos-baremetal. This is just an experiment.

Build and Sign

Build the binary and ACI. Change the build-aci script to use app name aci.dghubble.io/bootcfg before running.

	Add the following in .zshrc:

	...
	plugins=(osx git zsh-autosuggestions zsh-syntax-highlighting zsh-nvm docker kubectl)
	...

	### Fix slowness of pastes with zsh-syntax-highlighting.zsh
	pasteinit() {
	OLD_SELF_INSERT=${${(s.:.)widgets[self-insert]}[2,3]}
	zle -N self-insert url-quote-magic # I wonder if you'd need `.url-quote-magic`?

	# Enable the kube-ps1 oh-my-zsh plugin
	plugins = (
	git
	kube-ps1
	)

	# The output of the kube_ps1 function is text, so it can be used
	# directly as a custom p9k segment
	POWERLEVEL9K_CUSTOM_KUBE_PS1='kube_ps1'

	#!/bin/bash

	# Benchmarking Ceph
	# falcon78921

	# RBD Variables

	rbdPool=$1
	rbdWriteInterval=$2
	rbdReadInterval=$3

	#!/usr/bin/env python

	# required pip packages: lxml, beautifulsoup4, tabulate

	from bs4 import BeautifulSoup as BS
	import urllib2
	import ssl
	import urllib
	from tabulate import tabulate

	function asp {
	if [[ -z "$1" ]]; then
	if [[ -z "$AWS_DEFAULT_PROFILE" ]]; then
	echo "No profile set"
	else
	asp "$AWS_DEFAULT_PROFILE"
	echo "$AWS_DEFAULT_PROFILE"
	fi
	else
	if ! fgrep -q "[profile $1]" ~/.aws/config; then