caruccio

In bash you can use [[ pattern =~ regex ]] to match on a conditional:

if [[ "hello world" =~ ^hell ]]; then
  echo Match
else
  echo No match
fi

caruccio

function mkcolor()
{
    export $1="${2}" ${1}_E="\[${2}\]"

    case "$1" in
        BOLD|RESET)
            return
        ;;
        *)
            export ${1}_B="$(tput bold)${2}"             # Bold

caruccio

#!/bin/bash

# 
# Install: copy to path
# $ cp kubectl-extract /usr/local/bin
# 
# Usage:
#  $ kubectl extract -n default my-secret
# 

caruccio

Create the file stop-proc below:

#!/bin/bash

SIG=${0##*/}    ## basename only (name of the file itself, no dirs)
SIG=${SIG%-*}   ## remove filename suffix. "-*" is a glob pattern ("stop" in this case)
SIG=${SIG^^}    ## UPPERCASE all letters

## read process from command line or use this as default.

caruccio

Keybase proof

I hereby claim:

• I am caruccio on github.
• I am caruccio (https://keybase.io/caruccio) on keybase.
• I have a public key whose fingerprint is 1B8D F261 E133 2C08 7981 40CC 6C8F D64B E1EF E05E

To claim this, I am signing this object:

caruccio

#!/bin/bash

case "$1" in
    -h|--help)
        echo "Usage: $0 [phase]"
        echo ""
        echo "Default phases, in this order: "
        echo "  download                 Download all required tools into current directory"
        echo "  credentials              Ask for missing credentials"
        echo "  create-manager-cluster   Create Manager Cluster, used to create \"real\" Clusters"

caruccio

Namespaces

List all resources within a namespace

NS=some-namespace

kubectl api-resources --verbs=list --namespaced -o name \
  | xargs -n 1 kubectl get --show-kind --ignore-not-found -n $NS

caruccio

#!/usr/bin/python

from __future__ import print_function
import sys

def usage(argv):
    print('Usage: %s [commands][resources][options][parameters]' % argv[0], file=sys.stderr)
    print('\nCommands:', file=sys.stderr)
    for s, l in commands:
        print('  %s (%s)' % (s, l), file=sys.stderr)

caruccio

#!/bin/bash

if [ $# -lt 3 ]; then
    echo "Usage: $0 pod-name-suffix source-pvc-name destination-pvc-name [rsync options...]"
    exit 1
fi

POD_SUFFIX=${1}
PVC_FROM=${2}
PVC_TO=${3}

caruccio

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