dasgoll

global:
  scrape_interval: 15s
  scrape_timeout: 10s
  evaluation_interval: 15s
  external_labels:
    monitor: codelab-monitor
scrape_configs:
- job_name: prometheus
  scrape_interval: 15s
  scrape_timeout: 10s

dasgoll

Building Docker image with Packer and provisioning with Ansible

Overview

Packer

• Packer is used to build image from a base image, perform provisions and store (commit) the final image.

• We use provisioners and Packer templates to do the actual work to create the final image.

• We use Ansible for provisioning.

dasgoll

openssl genrsa 2048 > edgenode1.key

openssl req -new -x509 -nodes -sha1 -days 3650 -key edgenode1.key -subj "/C=JO/CN=*.goll.com"> edgenode1-wildcard.cert

Common Name (eg, your name or your server's hostname) []:*.goll.com

dasgoll

#!/bin/bash -xe

# requires jq and 3 brokers to start
which jq || echo 'no jq found, bye!' && exit 1
ZK_HOST=zkhost1:2181/kafka

# record all topics
/usr/local/kafka/bin/kafka-topics.sh --zookeeper $ZK_HOST --list > all_topics

# generate json for listing which topics to reassign

dasgoll

#!/bin/bash
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
cat <<EOF > /etc/apt/sources.list.d/kubernetes.list
deb http://apt.kubernetes.io/ kubernetes-xenial main
EOF
apt-get update
apt-get dist-upgrade -y
apt-get install -y docker.io
apt-get install -y kubelet kubeadm kubectl kubernetes-cni

dasgoll

# Set variables in .bashrc file

# don't forget to change your path correctly!

export GOPATH=$HOME/golang
export GOROOT=/usr/local/opt/go/libexec
export PATH=$PATH:$GOPATH/bin
export PATH=$PATH:$GOROOT/bin

dasgoll

This is a mix between two sources:

• http://www.alfielapeter.com/posts/8-transferring-s3-bucket-contents-between-accounts-with-s3cmd
• and http://blog.techopsguru.com/2011/12/s3-bucket-copying-with-multiple-accounts.html

basically the first resource is great but didn't work for me: I had to remove the trailing "/*" in the resource string to make it work. I also noticed that setting the policy on the source bucket was sufficient. In the end these are the exact steps I followed to copy data between two buckets on two accounts

Basically the idea there is:

• we allowe the destination account to read the source bucket (in the console for the source account)
• we log as the destination and start the copy

dasgoll

### https://hackernoon.com/golang-template-1-bcb690165663

package main

import (
    "net/http"
    "html/template"
)

func handler(w http.ResponseWriter, r *http.Request) {

dasgoll

How to Install GO Lang on CentOS / Amazon Linux?

sudo wget https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz
tar -xzf go1.4.2.linux-amd64.tar.gz 
export GOROOT=PATH_WHERE_YOU_EXTRACT_GO
export PATH=$PATH:$GOROOT/bin 
export GOBIN=$GOROOT/bin 
mkdir ~/golang/ 
export GOPATH=~/golang/ 

dasgoll

Put in (Preferences -> Key Bindings - User):

 
{ "keys": ["ctrl+tab"], "command": "next_view" },
{ "keys": ["ctrl+shift+tab"], "command": "prev_view" }



so you would have