LozanoMatheus

## 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
##

LozanoMatheus

## 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

LozanoMatheus

#!/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"

LozanoMatheus

#!/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}<-"

LozanoMatheus

#!/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}"

LozanoMatheus

## 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

LozanoMatheus

## Cleaning Docker images, networks, volumes, etc

function flush_docker() {
  [[ "${1}" == "all" ]] && local delete_docker_volumes="--volumes"
  docker system df
  docker rm -f $(docker ps -qa) &> /dev/null
  Docker_Prune_All="$(docker system prune --all ${delete_docker_volumes} --force)"
  tail -1 <<< "${Docker_Prune_All}"
}

LozanoMatheus

## A basic set up of ~/.ssh/config in your local machine/client
## ssh i-0a1b2c3d4e5f6g7h8i9

Host i-*
  User ec2-user
  ProxyCommand bash -c "aws  ssm start-session --target %h --document-name AWS-StartSSHSession --parameters 'portNumber=%p'"
  IdentityFile ~/.aws/test-mlozano001.pem


## In this case, it will search for a running instance that has the Tag:Name set to example-ssh-via-aws-ssm

LozanoMatheus

aws ssm start-session --target ${Instance_Id}

## or

ssh ${Instance_Id}

LozanoMatheus

#!/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