vfarcic

# Source: https://gist.github.com/9e8c8a78d669c84a803aac2d5446127c

######################################################################
# Monitor and Manage Cost Of Kubernetes Clusters And Cloud Resources #
# https://youtu.be/GpChs_4exxQ                                       #
######################################################################

# Additional Info:
# - Kubecost: https://kubecost.com
# - Cost-Aware Kubernetes Cluster Autoscaling With Cast AI: https://youtu.be/r2VS8DV1Lpk

scottrigby

Demo: Flux Helm Operator -> Controller Migration

1. Create local cluster

   kind create cluster

2. Barebones flux2 install for demo

janeczku

How to register Rancher managed Kubernetes clusters in Argo CD

Registering Rancher managed clusters in Argo CD doesn't work out of the box unless the Authorized Cluster Endpoint is used. Many users will prefer an integration of Argo CD via the central Rancher authentication proxy (which shares the network endpoint of the Rancher API/GUI). So let's find out why registering clusters via Rancher auth proxy fails and how to make it work.

Hint: If you are just looking for the solution scroll to the bottom of this page.

Why do i get an error when running argocd cluster add?

Service Account tokens and the Rancher authentication proxy

sergiks

NGINX and Certbot example with CloudFlare API in Docker

Sample config files to demonstrate seup that creates and updates free SSL certificates from Let's Encrypt given that the domains are maintained at CloudFlare service.

How it works

Certbot verifies domains ownership by accessing CloudFlare API that adds temporary TXT DNS records. To enable it You must provide your CloudFlare API token. More details in documentation for dns-cloudflare Certbot plugin.

Certbot saves created certificates in Docker volume certbot_etc. Pay attention to output of the certbot run - it mentions path to the created certificates.

ryo-ARAKI

# ~/.config/starship.toml

[battery]
full_symbol = "🔋"
charging_symbol = "🔌"
discharging_symbol = "⚡"

[[battery.display]]
threshold = 30
style = "bold red"

bradtraversy

Node.js Deployment

Steps to deploy a Node.js app to DigitalOcean using PM2, NGINX as a reverse proxy and an SSL from LetsEncrypt

1. Sign up for Digital Ocean

If you use the referal link below, you get $10 free (1 or 2 months) https://m.do.co/c/5424d440c63a

2. Create a droplet and log in via ssh

I will be using the root user, but would suggest creating a new user

dacappo

apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: security-by-default-header-filter
spec:
  filters:
  - listenerMatch:
      listenerType: GATEWAY
    filterType: HTTP
    filterName: envoy.lua

markheath

version: '2.2'
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.4.1
    container_name: elasticsearch
    environment:
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:

asoorm

version: "3"
services:
  mongo1:
    hostname: mongo1
    container_name: localmongo1
    image: mongo:4.0-xenial
    expose:
    - 27017
    ports:
      - 27011:27017

cablespaghetti

#!/bin/bash

# Get directory of script
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

if [[ $# -ne 1 ]]
then
    echo "ERROR: This script expects the namespace name to be given as an argument"
    echo "e.g. ./ecr-cred-updater.sh my-namespace"
    exit 1