"Zkoušel jsem si super-hyper-cool technologii a tak trošku nemohu na počı́tači nic dělat. Reinstalace?“ Jak řešit tyto situace ve velkém týmu elegantně?

1. Infrastructure as code
Infrastructure as code
Jak nahazovat stroje a nic moc nevˇedˇet
V´aclav Makeˇs
22. prosince 2016
Infrastructure as code V´aclav Makeˇs 1 / 18

2. Infrastructure as code
V´aclav Makeˇs
makes.cz
vaclav at makes.cz
Twitter – VaclavMakes
pom´ah´am, konzultuji
Infrastructure as code V´aclav Makeˇs 2 / 18

3. Infrastructure as code
Localhost – 1. use case
”
Zkouˇsel jsem si super-hyper-cool
technologii a tak troˇsku nemohu na
poˇc´ıtaˇci nic dˇelat. Reinstalace?“
Infrastructure as code V´aclav Makeˇs 3 / 18

4. Infrastructure as code
Localhost – 1. use case (reinstalace)
konfigurace
.gitconfig
.gitignore
.bashrc
pouˇz´ıvan´y SW
Chrome, PhpStorm
git, wget, ..., gource
Infrastructure as code V´aclav Makeˇs 4 / 18

5. Infrastructure as code
Localhost – 1. use case (reinstalace)
naskriptuji si to s´am (Bash)
dost pr´ace
reakce na zmˇeny (restart Nginx)
idempotence
nˇeco chytˇrejˇs´ıho
Ansible
Puppet
Chef
...
Infrastructure as code V´aclav Makeˇs 5 / 18

6. Infrastructure as code
Localhost – 1. use case (reinstalace)
−−−
− hosts : l o c a l
ta sk s :
− name : Copy g i t i g n o r e
copy : s r c=cnf /. g i t i g n o r e dest =˜/. g i t i g n o r e
− name : I n s t a l l packages from Homebrew .
homebrew : name={{ item }} s t a t e=present
with items :
− g i t
− wget
− gource
Infrastructure as code V´aclav Makeˇs 6 / 18

7. Infrastructure as code
Localhost – 2. use case
”
Nov´y kolega“
Infrastructure as code V´aclav Makeˇs 7 / 18

8. Infrastructure as code
Localhost – 2. use case (nov´y kolega)
sluˇzby
PHP
PostgreSQL / MySQL
Nginx / Apache
Redis
RabbitMQ
...
konfigurace
php.ini
dalˇs´ı projekty
Infrastructure as code V´aclav Makeˇs 8 / 18

9. Infrastructure as code
CI server – 2. use case (nov´y kolega)
to sam´e co na localhostu
co kdyˇz CI neum´ı napˇr. RabbitMQ
Infrastructure as code V´aclav Makeˇs 9 / 18

10. Infrastructure as code
Localhost – 2. use case (nov´y kolega)
Docker
Infrastructure as code V´aclav Makeˇs 10 / 18

11. Infrastructure as code
Localhost – 2. use case (nov´y kolega)
git clone
spuˇstˇen´ı cel´e aplikace = 1 command
frontend
backend
fixtures
samples
Infrastructure as code V´aclav Makeˇs 11 / 18

12. Infrastructure as code
Localhost – 2. use case (nov´y kolega)
FROM php :7.1 − apache
COPY ./ p r o j e c t . conf / etc / apache2 / p r o j e c t . conf
RUN echo ”Europe/Prague” > / etc / timezone
RUN a2enmod r e w r i t e
RUN apt−get i n s t a l l −y −−force −yes
g i t
unzip
mysql−c l i e n t
wget
z i p
WORKDIR /app
Infrastructure as code V´aclav Makeˇs 12 / 18

13. Infrastructure as code
Produkce – 3. use case
”
Aplikace na produkci – pouˇz´ıv´am
Docker a sluˇzby cloudu“
Infrastructure as code V´aclav Makeˇs 13 / 18

14. Infrastructure as code
Produkce – 3. use case (Docker)
AWS – ECS
DigitalOcean – vlastn´ı cluster (Kubernetes)
custom HW – vlastn´ı cluster (Kubernetes)
vyuˇzit´ı AWS RDS, AWS S3, ...
Infrastructure as code V´aclav Makeˇs 14 / 18

15. Infrastructure as code
Nasazov´an´ı na servery bez Dockeru – 4. use case
”
Aplikace na serverech – nepouˇz´ıv´am
Docker, poˇr´ad ˇreˇs´ım instalace
a konfigurace.“
Infrastructure as code V´aclav Makeˇs 15 / 18

16. Infrastructure as code
Nasazov´an´ı na servery bez Dockeru – 4. use case
konfigurace jako na localhostu
spolehlivˇejˇs´ı neˇz dokumentace
nov´y server do konkr´etn´ıho stavu
spuˇstˇen´ı serveru skrze API (lze pomoc´ı Ansible)
instalace pomoc´ı Ansible (jako localhost)
udrˇzov´an´ı st´al´eho serveru
zmˇeny konfigurace a konsekvence (restarty po zmˇenˇe
konfigurace)
v´yhody
”
code-review“
pˇrehled zmˇen – Git historie
zamezen´ı chyb (AWS Console)
Infrastructure as code V´aclav Makeˇs 16 / 18

17. Infrastructure as code
N´astroje
princip
pull
push
n´astroje
custom (Bash)
Docker
Ansible
Chef
Puppet
...
Infrastructure as code V´aclav Makeˇs 17 / 18

18. Infrastructure as code
Dˇekuji za pozornost
Infrastructure as code V´aclav Makeˇs 18 / 18