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Tooling in alpine builds

Pretty usual to have to diagnose docker containers based on alpine distros. But the image never comes with basic tools. How do we add it?

apk update						      # update the local registry
apk add busybox-extras			# install telnet and some other basic tools
apk add curl

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#!/bin/bash

# Check if running as root
if [ "$(id -u)" -ne 0 ]; then
  echo "Please run this script as root or with sudo."
  exit 1
fi

# Backup existing SELinux configuration
CONFIG_FILE="/etc/selinux/config"

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import ec2 = require('@aws-cdk/aws-ec2');
import cdk = require('@aws-cdk/core');

import { Fn, Tag, Resource } from '@aws-cdk/core';
import { AmazonLinuxImage, UserData, InstanceType } from '@aws-cdk/aws-ec2';
import { Role, ServicePrincipal, ManagedPolicy, CfnInstanceProfile } from '@aws-cdk/aws-iam'

/**
 * Create my own Ec2 resource and Ec2 props as these are not yet defined in CDK
 * These classes abstract low level details from CloudFormation

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frs/admin/qrs.php
__admin
__cache/
__index.php
__MACOSX
__pma___
__SQL
__test.php
_.htpasswd
_adm

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apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: metrics-server
  name: metrics-server
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole

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#!/bin/bash
##Tenny Susanto
##2017-11-09
##download messages from Kafka partition by partition
##do not use this in a Kakfa queue that is constantly receiving new messages
##this should only be used for manual pull for historical data done by platform team (they dump the data into Kafka once and don't write to it)

##This file contains the login/password to the Kafka server
export KAFKA_OPTS="-Djava.security.auth.login.config=/path/jass.conf"

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//READ nodetool snapshot documentation in cassandra
//READ stack-overflow-topic gist or directly in stackoverflow -> http://stackoverflow.com/questions/25465904/how-can-i-restore-cassandra-snapshots

//EXPORT the databases schemas
cqlsh -e "DESCRIBE SCHEMA" > my_backup_name.schema

//Create snapshot of the whole server
nodetool snapshot my_backup_name

//Compress the backups

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Debezium installation

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1. Install Kafka

   cd /opt
   curl -O http://www.gtlib.gatech.edu/pub/apache/kafka/0.11.0.0/kafka_2.11-0.11.0.0.tgz
   tar xvzf kafka_2.11-0.11.0.0.tgz
   ln -s kafka_2.11-0.11.0.0/ kafka

2. Edit /usr/lib/systemd/system/kafka-zookeeper.service