Matheus Lozano LozanoMatheus

## get_ip.sh
#!/usr/bin/env bash

## Get the primary and secundary IPs
awk '/\|--/ && !/\.0$|\.255$/ {print $2}' /proc/net/fib_trie

## Get only the primary IPs
awk '/32 host/ { print i } {i=$2}' /proc/net/fib_trie

## 01-bash_http.sh
#!/usr/bin/env bash +x

## Do you need to test your exposed app but you don't have curl/wget/* installed?

## The ":" is a built-in command and it works similar to true. Let's say, ":" is more portable than "true"
## Simple and easy
:> /dev/tcp/localhost/22

## Why using timeout? If any side has a firewall and it's dropping the packages, the request will take ~80 seconds to get the timeout.

## K8s_Kind_list.txt
Deployment
Ingress
CronJob
Service
ServiceMonitor
ConfigMap
Secret

## example_trap.sh
#!/usr/bin/env bash

set -E

function log() {
  local      msg_args=("${@}")
  local      timestamp="$(date +'%Y-%m-%d %T')"
  declare -u log_level="${msg_args[0]}"
  local      message="${msg_args[@]:1}"

## example_switching_version_asdf.sh
## Install
asdf plugin add terraform
asdf install terraform 0.13.0
asdf install terraform 0.14.7
asdf install terraform 0.12.29
##

## Command
terraform version
##

## example_asdf.sh
## Add the awscli plugin
asdf plugin add awscli

## List the awscli version
asdf list-all awscli

## Install awscli version 2.1.27
asdf install awscli 2.1.27
## or to install the latest of awscli
asdf install awscli latest

## 01-test_vars_inside_function.sh
#!/usr/bin/env bash

function test_vars(){
  declare -g declare_g="declare_g_output"
  declare -x declare_x="declare_x_output"
  declare    declare_only="declare_only_output"

  export     export_only="export_only_output"

  local      local_only="local_only_output"

## 01-test_vars_outside_function.sh
#!/usr/bin/env bash

function print_vars(){
  echo "func_declare_g->${declare_g}<-"
  echo "func_declare_x->${declare_x}<-"
  echo "func_declare_only->${declare_only}<-"

  echo "func_export_only->${export_only}<-"

  # echo "func_local_only->${local_only}<-"

## 01-verify_oidc.sh
## First of all, check if you already have an OpenID Connect
### List your EKS cluster OIDC URL
aws eks describe-cluster --name <CLUSTER_NAME> --query "cluster.identity.oidc.issuer"

#### Output
https://oidc.eks.<REGION>.amazonaws.com/id/<OIDC_ID>

### List your
aws iam list-open-id-connect-providers

## install_bash.sh
#!/usr/bin/env sh

LINUX_DISTRO="$(. /etc/os-release ; echo ${ID})"
BASH_VERSION="bash-5.0"
SOURCE_DIR="/var/opt/"

prereqs_centos(){
  install_bash
  yum install -y -q gcc make &> /dev/null
  yum clean all &> /dev/null
	#!/usr/bin/env bash

	## Get the primary and secundary IPs
	awk '/\\|--/ && !/\.0$\|\.255$/ {print $2}' /proc/net/fib_trie

	## Get only the primary IPs
	awk '/32 host/ { print i } {i=$2}' /proc/net/fib_trie
	#!/usr/bin/env bash +x

	## Do you need to test your exposed app but you don't have curl/wget/* installed?

	## The ":" is a built-in command and it works similar to true. Let's say, ":" is more portable than "true"
	## Simple and easy
	:> /dev/tcp/localhost/22

	## Why using timeout? If any side has a firewall and it's dropping the packages, the request will take ~80 seconds to get the timeout.
	Deployment
	Ingress
	CronJob
	Service
	ServiceMonitor
	ConfigMap
	Secret
	#!/usr/bin/env bash

	set -E

	function log() {
	local msg_args=("${@}")
	local timestamp="$(date +'%Y-%m-%d %T')"
	declare -u log_level="${msg_args[0]}"
	local message="${msg_args[@]:1}"
	## Install
	asdf plugin add terraform
	asdf install terraform 0.13.0
	asdf install terraform 0.14.7
	asdf install terraform 0.12.29
	##

	## Command
	terraform version
	##
	## Add the awscli plugin
	asdf plugin add awscli

	## List the awscli version
	asdf list-all awscli

	## Install awscli version 2.1.27
	asdf install awscli 2.1.27
	## or to install the latest of awscli
	asdf install awscli latest
	#!/usr/bin/env bash

	function test_vars(){
	declare -g declare_g="declare_g_output"
	declare -x declare_x="declare_x_output"
	declare declare_only="declare_only_output"

	export export_only="export_only_output"

	local local_only="local_only_output"
	#!/usr/bin/env bash

	function print_vars(){
	echo "func_declare_g->${declare_g}<-"
	echo "func_declare_x->${declare_x}<-"
	echo "func_declare_only->${declare_only}<-"

	echo "func_export_only->${export_only}<-"

	# echo "func_local_only->${local_only}<-"
	## First of all, check if you already have an OpenID Connect
	### List your EKS cluster OIDC URL
	aws eks describe-cluster --name <CLUSTER_NAME> --query "cluster.identity.oidc.issuer"

	#### Output
	https://oidc.eks.<REGION>.amazonaws.com/id/<OIDC_ID>

	### List your
	aws iam list-open-id-connect-providers
	#!/usr/bin/env sh

	LINUX_DISTRO="$(. /etc/os-release ; echo ${ID})"
	BASH_VERSION="bash-5.0"
	SOURCE_DIR="/var/opt/"

	prereqs_centos(){
	install_bash
	yum install -y -q gcc make &> /dev/null
	yum clean all &> /dev/null