yelinaung

apiVersion: autoscaling/v2beta1
kind: HorizontalPodAutoscaler
metadata:
  name: my-hpa
  namespace: sg-prod
  annotations:
    metric-config.object.istio-requests-total.prometheus/per-replica: "true"
    metric-config.object.istio-requests-total.prometheus/query: |
      sum(rate(istio_requests_total{reporter="destination", destination_workload="<deployment-name-here>"}[2m]))
spec:

rothgar

#!/bin/bash
# Taken from https://medium.com/netflix-techblog/linux-performance-analysis-in-60-000-milliseconds-accc10403c55

# initialize array
COMMANDS=('uptime')
# add systemctl command if it's installed
command -v systemctl >/dev/null && COMMANDS+=('systemctl list-units --state=failed')
# add more commands
COMMANDS+=('dmesg | tail'
          'vmstat 1'

ricjcosme

Occasionally we will deploy a virtual instance into our KVM infrastructure and realize after the fact that we need more local disk space available. This is the process we use to expand the disk image. This process assumes the following:

• You're using legacy disk partitions. The process for LVM is similar and I will describe that in another post.
• The partition you need to resize is the last partition on the disk.

This process will work with either a qcow2 or raw disk image. For

hnakamur

package main

import (
	"crypto/tls"
	"crypto/x509"
	"flag"
	"fmt"
	"log"

	"golang.org/x/net/idna"

benjamincharity

" copy all this into a vim buffer, save it, then...
" source the file by typing :so %
" Now the vim buffer acts like a specialized application for mastering vim

" There are two queues, Study and Known.  Depending how confident you feel
" about the item you are currently learning, you can move it down several
" positions, all the way to the end of the Study queue, or to the Known
" queue.

" type ,, (that's comma comma)

msdzero

<canvas id="myChart" width="400" height="100"></canvas>

<script src="/js/Chart.min.js"></script>
<script>
$(function () {
    var ctx = document.getElementById("myChart").getContext("2d");
    // examine example_data.json for expected response data
    var json_url = "example_data.json";

    // draw empty chart

swyxio

2019 update: this essay has been updated on my personal site, together with a followup on how to get started

2020 update: I'm now writing a book with updated versions of all these essays and 35 other chapters!!!!

1. Learn in public

If there's a golden rule, it's this one, so I put it first. All the other rules are more or less elaborations of this rule #1.

You already know that you will never be done learning. But most people "learn in private", and lurk. They consume content without creating any themselves. Again, that's fine, but we're here to talk about being in the top quintile. What you do here is to have a habit of creating learning exhaust. Write blogs and tutorials and cheatsheets. Speak at meetups and conferences. Ask and answer things on Stackoverflow or Reddit. (Avoid the walled gardens like Slack and Discourse, they're not public). Make Youtube videos

eddiewebb

Client side searching for Hugo.io with Fuse.js

• WHY
• Sample
• Setup
• Files
  • content/search.md
  • layouts/_default/search.html
  • static/js/search.js

• layouts/_default/index.json

erikig

ryanfitz

package main

import (
	"fmt"
	"time"
)

// Suggestions from golang-nuts
// http://play.golang.org/p/Ctg3_AQisl