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Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

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People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

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# Create all variables used in this Terraform run
variable "aws_access_key" {}
variable "aws_access_secret_key" {}
variable "aws_bucket_name" {}
variable "aws_region_main" {
  default = "eu-west-1"
}
variable "aws_region_replica" {
  default = "eu-central-1"
}

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Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

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##Install AWS CLI Tools##

1. Install AWS CLI Tools. You can also use the EC2 API Tool if you are more comfortable with them. But this write-up uses the EC2 CLI.
2. Create a user via Amazon IAM or download the security accessID and securitykey you will need it to query Amazon CLI.
3. using Terminal cd into .aws directory cd ~/.aws edit or create new file named config paste the following contents inside.
   `[default]`
   `aws_access_key_id = ACCESS_ID`
   `aws_secret_access_key = SECRET_ID`
   `output = json OR bson OR text`
   `region = PREFERRED_AWS_REGION`

Save the file as "config"

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#!/usr/bin/groovy

/*
 * Copyright (c) 2016, Andrey Makeev <amaksoft@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright

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node {
  repositoryAccess = 'https://'
  repositoryAccessSeparator = '/'
  
  echo "repository host: ${repositoryHost}" // github.com
  echo "repository path: ${repositoryPath}" // <user>/<repository>.git
  echo "repository jenkins credentials id: ${credentialsId}"  // jenkins credentials for the jenkins git account who have commit access
  echo "repository branch: ${branch}" // master or another branch
  echo "repository commiter username: ${repositoryCommiterUsername}" // Jenkins account email 
  echo "repository commiter name: ${repositoryCommiterEmail}" // Jenkins

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How to extract a single file with its history from a git repository

These steps show two less common interactions with git to extract a single file which is inside a subfolder from a git repository. These steps essentially reduce the repository to just the desired files and should performed on a copy of the original repository (1.).

First the repository is reduced to just the subfolder containing the files in question using git filter-branch --subdirectory-filter (2.) which is a useful step by itself if just a subfolder needs to be extracted. This step moves the desired files to the top level of the repository.

Finally all remaining files are listed using git ls, the files to keep are removed from that using grep -v and the resulting list is passed to git rm which is invoked by git filter-branch --index-filter (3.). A bit convoluted but it does the trick.

1. copy the repository to extract the file from and go to the desired branch

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global
  chroot  /var/lib/haproxy
  crt-base  /etc/pki/tls/certs
  daemon  
  group  haproxy
  log  127.0.0.1 local0
  maxconn  2000
  pidfile  /var/run/haproxy.pid
  stats  socket /var/lib/haproxy/stats
  tune.ssl.default-dh-param  2048

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#!/bin/sh

version="1.4.15"
priority="10415"
libevent="/usr/local/libevent/2.0.20-stable/"
supervisordir="/etc/supervisord.d"

# create user
sudo groupadd memcached
sudo useradd -r -g memcached -s /sbin/nologin -M -d /var/run/memcached memcached