1.
Puppetv4
Avoiding Dragons
Garrett Honeycutt
gh@| earnpuppet. com
Learn Puppet. com
@| earnpuppet

2.
puppet—agent package from PC1
augeas (1.3.0) ruby (2.1.6)
cfacter (O.4.1) ruby—augeas (O.5.0)
facter (2.4.4) ruby—se| inux
(2.0.94)
hiera (2.0.1) ruby—shadow (2.3.3)
marionette—co| |ective (2.8.2) ruby—stomp (1.3.3)
openssl (1.0.0r) rubygem—deep—merge
(1.0.0)
puppet (4.1.0) rubygem—net—ssh (2.1.4)
virt—what (1.1.4)

3.
Bye Bye
Apache+Passenge
r

4.
Hello
JVM+C| osu re+J Ru
by

5.
Ruby 1.8.7
RIP

6.
OSX <= 10.6
(snow leopard)
RIP

7.
Where is
everything?

8.
Mostly under
/ Opt/ puppetlabs

9.
/opt/ puppetlabs/ bin
Add to $ PATH

10.
/opt/ puppetlabs/ puppet/ bin
Private programs for Puppet
SUCh as ruby and gem

11.
configuration is in
/ etc/ puppetlabs/ puppet

12.
$ ls / etc/ puppetlabs
code
mcollective
Puppet
puppetserver

13.
SSL wherel?
/ etc/ puppetlabs/ puppet/ Ssl

14.
/etc/ puppetlabs/ Code
Hiera configuration
Hiera data
Static modules
Environments

15.
Environments
/ etc/ puppetlabs/ code/ environments

16.
Many
type/ provider
improvements

17.
Facts are not
all strings

18.
S facter os ——yaml
os:
name: CentOS
family: Redflat
release:
major: '7'
minor: '1'
full: 7.1.1503

19.
class foo (
Sbar = true,
) {
if is_string($bar) = = true {
$bar_real = str2bOol($bar)
} else {
$bar_real = $bar
}
validate_bool($bar_real)

20.
Templates with
EPP
epp(module/ foo. epp)

21.
Language

22.
Iteration with
lambdas
. each is here

23.
$list = ['a', 'b', 'c']
each($list) | $index, $value|
{
notice("${index} = ${value}")

24.
Notice:
Notice:
Notice:
Scope(Class[main]):
Scope(Class[main]):
Scope(Class[main]):
O
l
2
ll
DJ

25.
['a', 'b', 'c']. each | $index, $value|
{
notice("${index} = ${value}")

26.
Notice:
Notice:
Notice:
Scope(Class[main]):
Scope(Class[main]):
Scope(Class[main]):
O
l
2
ll
DJ

27.
Lambdas
. each
. slice
. filter
. map
. reduce
. with

28.
Type casting

29.
class foo (
$bar =
) {
true,
if is_string($bar)
$bar_real
} else {
$bar_real
}
true {
str2bool($bar)
$bar
validate_bool($bar_real)

30.
class foo (
Boolean $bar = true,
{
Remove all this code!
if is_striDg($bar) = = true {
$bar_real = str2bool($bar)
} else {
$bar_real = Sbar
}
validate_bool($bar_real)
Ev-’= l=l= =l= l== l=l= =l= l== l=l= =l= l== l=l= =l= l=‘-’

31.
String
Integer, Float, and Numeric
Boolean
Array
Hash
Regexp
Undef
Default

32.
Scalar Struct
Collection Optional
Variant Catalogentry
Data Type
Pattern Any
Enum Callable
Tuple

33.
Upgrading

34.
Never upgrade
in place

35.
Create new
PUPPet
masters

36.
common nscd rsystog
dnsctient nsswitch setinux
facter ntp ssh
hosts pam
sysktogd
inittab papertrait timezone
Localization puppet types
nfs redhat utits
nrpe rpcbind vim

37.
Travis—ci

38.
# spec/ spec_heLper. rb
RSpec. configure do lconfigl
config. before zeach do
Puppet[: parser] 'future' if
ENV['PARSER'] = 'future'
end
end

39.
V/ Eiicfijifiliiis "~ » 2; ‘ ‘M '1
VfE2%CEI: iT Ibis " > 7% i 2% "
1: is I!
) 1.‘) ‘ _r'’ I!
) 1.‘) {fill
> V4‘, ‘7/ II
) 2; 2:"
)
>
V
2 in

40.
# . travis yml
language: ruby
rvm:
— 2.1.0
sudo: false
env:
matrix:
- PUPPET_GEM_VERSION= ”~> 3” PARSER= ”future”
— PUPPET_GEM_VERSION= ”~> 4”
script: ‘bundle exec metadata—json—lint metadata. json && bundle
exec rake validate && bundle exec rake lint && SPEC_OPTS= ”——
format documentation” bundle exec rake spec’
matrix:
fast_finish: true
notifications:
email: false

41.
Resource
Overrides

42.
Service
ensure = >
enable = >
hasstatus = >
hasrestart = >
['nfs_service']
running,
true,
true,
true,
{

43.
Service['nfs_service'] {
ensure = > running,
enable = > true,
hasstatus = > true,
hasrestart = > true,

44.
type()

45.
Error Illegal
expression A
Reserved Word
ftype is
unacceptable as
function name

46.
type3x()

47.
stdlib

48.
puppetlabs/ stdlib >= 4.6.0 < 6.0.0
v4.6.0 includes type3x ()

49.
validate_absolute_path()
Now accepts arrays : )
Broke my spec tests : (

50.
Error codes changed
slightly
Broke my spec tests : (

51.
expected Puppet Error with
message matching / “true is
not a string/ , got
#<Puppet Error Evaluation
Error Error while
evaluating a Function Call,
true is not a string It
looks to be a TrueClass

52.
Got rid of ‘A’ in regex so it was not
being as explicit.

53.
Templates

54.
Must have @var instead ofjust var.
Check inline_template () 1200.

55.
Stop using
inline_template()

56.
Node
lnherfiance
RH’

57.
node common {
include ssh
node 'f. example. com‘ inherits common {
include apache

58.
Upgrade Checklist
* setup Travis (or equiv)
* test
* test
* test

59.
Puppetv4
Avoiding Dragons
Garrett Honeycutt
gh@| earnpuppet. com
Learn Puppet. com
@| earnpuppet