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AWS CLI snippets

The AWS Command Line Interface is a very powerfull ally to anyone managing AWS Infrastructure.

While automating infrastructure with Terraform, some configuration can be quickly retrieved using AWS CLI.

Alternatively, some information is hard to piece together from the AWS console, in which case terminal scripts can provide fast and simple windows into your cloud.

AWS Documentation

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Powerline

http://powerline.readthedocs.io

 mkdir powerlineFonts
 cd powerlineFonts/
 git init
 git remote add origin https://github.com/powerline/fonts.git
 git remote -v

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[CmdletBinding()]
Param(
    [Parameter(Mandatory=$True,Position=1)]
    $Filter=".*",
    
    #TODO: handle https & no basic auth as well..
    $RegistryEndpoint = "registry.mysite.com",
    $UserName = "user",
    $Password = "password"
)

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---
AWSTemplateFormatVersion: '2010-09-09'
Description: 'Amazon EKS Node Group'
Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
      -
        Label:
          default: "EKS Configuration"
        Parameters:

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require 'openssl'
require 'socket'

def ssl_peek(host)
  ip = ENV['TIP_HOST'] || '0.0.0.0'
  port = ENV['TIP_PORT'] || '8121'
  tcp_client = TCPSocket.new(ip, port)
  ssl_client = OpenSSL::SSL::SSLSocket.new(tcp_client)
  ssl_client.hostname = host
  ssl_client.connect

so0k

Tue Feb 26 08:41:19 UTC 2019

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PSQL

Magic words:

psql -U postgres

If run with -E flag, it will describe the underlaying queries of the \ commands (cool for learning!).

Most \d commands support additional param of __schema__.name__ and accept wildcards like *.*

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apiVersion: v1
kind: Namespace
metadata:
  name: heptio-contour
---
apiVersion: v1
kind: Service
metadata:
  name: envoy-external
  namespace: heptio-contour

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apiVersion: v1
kind: Namespace
metadata:
  name: heptio-contour
---
apiVersion: v1
kind: Service
metadata:
  name: envoy-external
  namespace: heptio-contour

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apiVersion: v1
kind: Namespace
metadata:
  name: heptio-contour
---
apiVersion: v1
kind: Service
metadata:
  name: envoy-external
  namespace: heptio-contour