csantanapr

Available Public Wildcard DNS Domains pointing to localhost (127.0.0.1)

The best way to safely and securely use local domains pointing to 127.0.0.1 is to edit your local settings (/etc/hosts) and add your own settings. Keep in mind if you want to use subdomains, you need to enter all variations.

Example:

# Adding bottom of your current file /etc/hosts
################# MY LOCAL DOMAINS
127.0.0.1 local.com admin.local.com
127.0.0.1 domain1.com

csantanapr

ArgoCD and ArgoWorkflows SSO config with AWS Cognito

So you have fantastic ArgoCD or mind-boggling ArgoWorkflows (this guide covers both), and if you want to secure the Authentication with AWS Cognito, let's dive right in.

I found many different sources unveiling some pieces of the required configuration but no resources where one can see the whole picture. I hope this guide will be one of such places. This guide will mean no DEX usage, just rely on Argo's built-in OpenID Connect flow.

Table of contents

csantanapr

<!DOCTYPE NETSCAPE-Bookmark-file-1>
<!-- This is an automatically generated file.
     It will be read and overwritten.
     DO NOT EDIT! -->
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<TITLE>Bookmarks</TITLE>
<H1>Bookmarks</H1>
<DL><p>
    <DT><H3 ADD_DATE="1606081399" LAST_MODIFIED="1606237173" PERSONAL_TOOLBAR_FOLDER="true">Bookmarks Bar</H3>
    <DL><p>

csantanapr

set -e, -u, -o pipefail

The "set" lines These lines deliberately cause your script to fail. Wait, what? Believe me, this is a good thing. With these settings, certain common errors will cause the script to immediately fail, explicitly and loudly. Otherwise, you can get hidden bugs that are discovered only when they blow up in production.

set -euo pipefail is short for:

set -e
set -u

csantanapr

set -e, -u, -o pipefail

The "set" lines These lines deliberately cause your script to fail. Wait, what? Believe me, this is a good thing. With these settings, certain common errors will cause the script to immediately fail, explicitly and loudly. Otherwise, you can get hidden bugs that are discovered only when they blow up in production.

set -euo pipefail is short for:

set -e
set -u

csantanapr

Creating Let's Encrypt certificates for IBM free Kubernetes clusters

The IBM Kubernetes service free clusters consist of a single worker node with 2 CPU and 4 GB of memory for experimenting with Kubernetes. Unlike the fee-based service, these clusters do not include capabilities for application load balancing using ingress out-of-the-box. However, if you manage a DNS domain (any provider will suffice) and can add an A record, it's possible for you to configure your own ingress that can provide http and https session termination for your containerized applications. Getting a TLS-enabled website or simply an external REST API couldn't be easier!

Prerequisites

• Free IBM Kubernetes Cluster (IKS) - upgrade your account from Lite plan to create one. In the example commands, we'll assume that this cluster is named mycluster
• kubectl - match your cluster API version (as of 5/17/20 - this is ~1.16.9)
• helm v3
• DNS domain that you can edit to configure

csantanapr

<!DOCTYPE NETSCAPE-Bookmark-file-1>
<!-- This is an automatically generated file.
     It will be read and overwritten.
     DO NOT EDIT! -->
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<TITLE>Bookmarks</TITLE>
<H1>Bookmarks</H1>
<DL><p>
    <DT><H3 ADD_DATE="1576816453" LAST_MODIFIED="1578776782">CKAD</H3>
        <DL><p>

csantanapr

#!/bin/sh

# Setting up some colors for helping read the demo output.
# Comment out any of the below to turn off that color.
bold=$(tput bold)
bright=$(tput setaf 14)
yellow=$(tput setaf 11)
red=$(tput setaf 196)
reset=$(tput sgr0)

csantanapr

# Makefile for transpiling with Babel in a Node app, or in a client- or
# server-side shared library.

.PHONY: all clean

# Install `babel-cli` in a project to get the transpiler.
babel := node_modules/.bin/babel

# Identify modules to be transpiled by recursively searching the `src/`
# directory.

csantanapr

General

• create a single page javascript application
• be as low-level as possible to be able to control performance (=minimize layers)
• masterize your dev/build environnement so you can work/play nicely

Debug apps

• Open safari console in development menu with simulator or attached devices (enable debug in ipad/safari dev options)
• Applescript to automate console open : https://gist.github.com/revolunet/bed17b9809fffa77b4b8 (works great with https://red-sweater.com/fastscripts/)