jamtur01

#!/opt/puppetlabs/puppet/bin/ruby
# This mini-webserver is meant to be run as the peadmin user
# so that it can call mcollective from a puppetmaster
# Authors:
# Ben Ford
# Adam Crews
# Zack Smith
# Jeff Malnick

require 'rubygems'

jamtur01

Interviewing for Engineering roles

---

Workshop timetable

• 15 mins Introduction

Per interview.

jamtur01

Warning - actual ignitition not guaranteed to occur. No Ben's were harmed during the making of this tweet.

jamtur01

My root partition mounted read only too. To fix, I ran:

blkid
to get the disk's new UUID, and then updated /etc/fstab with the new value:

cp /etc/fstab /run
vim /run/fstab 
mount --no-mtab --fstab /run/fstab -o remount,rw /
cp /run/fstab /etc
reboot

jamtur01

* aws_route53_record.riemann_private: diffs didn't match during apply. This is a bug with Terraform and should be reported as a GitHub Issue.

Please include the following information in your report:

    Terraform Version: 0.8.1
    Resource ID: aws_route53_record.riemann_private
    Mismatch reason: attribute mismatch: records.1515779551
    Diff One (usually from plan): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"ttl":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "fqdn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "zone_id":*terraform.ResourceAttrDiff{Old:"", New:"Z2FZI4D6465RDO", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "records.#":*terraform.ResourceAtt

jamtur01

#!/bin/bash

type terraform >/dev/null 2>&1 || { echo >&2 "I require terraform but it's not installed. Quitting sadly."; exit 1; }

REGION="us-east-1"
BUCKET="remote_state"
ENVIRONMENT=${PWD##*/}
STATE_FILE="terraform.tfstate"
ARGS=$*

jamtur01

S3 Bucket

Terraform can also store modules in an S3 bucket. To access the bucket you must have appropriate AWS credentials in your configuration or available via shared credentials or environment variables.

There are a variety of S3 bucket addressing schemes, most are documented in the S3 configuration. Here are a couple of examples:

jamtur01

#!/usr/bin/env bash
set -e

# Formats any *.tf files according to the hashicorp convention
files=$(git diff --cached --name-only)
for f in $files
do
  if [ -e "$f" ] && [[ $f == *.tf ]]; then
    #terraform validate `dirname $f`
    terraform fmt $f

jamtur01

env TF_LOG=DEBUG terraform get -update
2016/10/15 05:59:20 [INFO] Terraform version: 0.7.6  754bdda8a78b24efab62f1dc24d97c1c02d89fe9
2016/10/15 05:59:20 [INFO] CLI args: []string{"/usr/local/bin/terraform", "get", "-update"}
2016/10/15 05:59:20 [DEBUG] Detected home directory from env var: /Users/james
2016/10/15 05:59:20 [DEBUG] Detected home directory from env var: /Users/james
2016/10/15 05:59:20 [DEBUG] Attempting to open CLI config file: /Users/james/.terraformrc
2016/10/15 05:59:20 [DEBUG] File doesn't exist, but doesn't need to. Ignoring.
2016/10/15 05:59:20 [DEBUG] Detected home directory from env var: /Users/james
Get: git::https://github.com/turnbullpublishing/tf_api.git (update)
Get: git::ssh://[email protected]/turnbullpublishing/tf_vpc.git?ref=v0.0.2 (update)

jamtur01

2016/09/30 14:45:10 [INFO] Terraform version: 0.7.4  84592f5967490d118aae0b61a25d589d269fd0b6
2016/09/30 14:45:10 [INFO] CLI args: []string{"/usr/local/bin/terraform", "plan"}
2016/09/30 14:45:10 [DEBUG] Detected home directory from env var: /Users/james
2016/09/30 14:45:10 [DEBUG] Detected home directory from env var: /Users/james
2016/09/30 14:45:10 [DEBUG] Attempting to open CLI config file: /Users/james/.terraformrc
2016/09/30 14:45:10 [DEBUG] File doesn't exist, but doesn't need to. Ignoring.
2016/09/30 14:45:10 [DEBUG] Detected home directory from env var: /Users/james
2016/09/30 14:45:10 [DEBUG] DestroyEdgeInclude: Checking: aws_instance.base
2016/09/30 14:45:10 [DEBUG] DestroyEdgeInclude: Checking: aws_instance.base
2016/09/30 14:45:10 [TRACE] Graph after step *terraform.DestroyTransformer: