André Christ, co-founder of LeanIX, discusses the challenges and solutions in the SaaS industry, particularly emphasizing the importance of maintaining focus on product development while addressing diverse customer needs. The presentation highlights the use of automation tools like Docker, Ansible, and Jenkins to streamline deployment, testing, and integration processes across different environments. Key takeaways include the advantages of using Docker for faster and more efficient application management and the significance of effective documentation and flexible deployment models.

1. DevOps
in
prac-ce
–
How
to
keep
focus
on
your
product?
André
Christ
Startup
Camp
Berlin,
March
2015

2. Hint:
The
former
capital
;-­‐)
2
Photo:
Michael
Sondermann/Bundesstadt
Bonn

3. About
3
André
Christ
• Co-­‐Founder
&
Co-­‐CEO
• Responsible
for
IT
&
Finance
• Before:
DHL,
HTGF,
Startups
LeanIX
GmbH
• SaaS-­‐Provider
for
IT
Architecture
Mgmt
• Self-­‐Funded,
Founded
2012
in
Bonn
• >
20
Customers
in
US,
Europe
and
Australia

4. What’s
your
level
of
experience
with
these
tools?
4
“Build,
ship,
and
run
distributed
applicaZons”
“Building/tesZng
soware
projects
conZnuously”
“IT
automaZon
engine
that
automates
applicaZon
deployment,
configuraZon
management,
….”

5. Ansible
and
Docker
clearly
connected
to
the
DevOps
“Hype”
…
5
Source:
Google
Trends
DevOps
Docker
Ansible

6. …
while
Jenkins
is
really,
really
mature
and
widely
adopted
by
all
company
sizes
6
Source:
Google
Trends
DevOps
Docker
Ansible
Jenkins

7. Agenda
7
Docker
Ansible
Jenkins
Mo-va-on
–
How
to
keep
focus
on
your
product?
Summary
/
Learnings

8. Challenge
1:
Serve
high-­‐profile
customers
worldwide
with
very
limited
resources
8

9. Challenge
2:
Scale
the
plahorm
with
the
right
tools
for
the
job
2012
2014
2013
“MVP”
SSO
&
Micro
services
Professional
Build
Process
Service-­‐
&
Quality
Ensurance
2015
Single
Page
JS
App

10. Challenge
3:
B2B-­‐SaaS
requires
flexible
deployment
models
–
Cloud
and
On-­‐Premise
10
Different
cloud
environments
• Amazon
Webservices
(US
&
Australia)
• Strato
(Germany)
• Further
providers
planned
(e.g.
Azure)
• …
Individual
plaPorms
per
company
• Ubuntu
Linux
• Redhat
• Windows
• ….

11. 11
Write
proper
documenta-on
and
manuals?!
Does
not
solve
our
issues*
• High
effort
to
test
• Not
repeatable
• Outdated
very
soon
• Prohibits
scale
• Not
customer
friendly
(e.g.
on
premise)
*)
Does
not
mean
we
don’t
write
proper
documentaZon
where
needed
J

12. ProducZon
Servers
US
ProducZon
Servers
US
Our
solu-on:
Highly
automated
build,
test
and
deploy
tool
chain
12
Develop
Build
Test
Deploy
Staging
Server
ProducZon
Servers
Europe
Developer
Machines

13. Real-­‐life
example:
LeanIX
Synclog
micro
service
13
Track
synchroniza-on
results:
Success,
errors
etc.
of
all
LeanIX
3rd
party
integraZons
Synclog
Microservice
Synclog
Architecture:
RESTful
micro
service
with
database
and
Single
Page
App
GUI
DB
Synclog
REST-­‐API
Synclog
GUI
Angular.JS
Nginx
Webserver
Postgres
Java
Dropwizard
API

14. Agenda
14
Docker
Ansible
Jenkins
MoZvaZon
–
How
to
keep
focus
on
your
product?
Summary
/
Learnings

15. How
does
Docker
compare
to
virtual
machines?
15
Server
Host
OS
Hypervisor
Server
Host
OS
Docker
Engine
Guest
OS
Bins/Libs
App
A
Guest
OS
Bins/Libs
App
B
Svc
1
Svc
2
Bins/Libs
Virtualisa-on
Docker
Advantages
• Significantly
faster
deployment
• Much
less
overhead
• Easier
migraZon
• Faster
restart
&
cleanup
• Fits
perfect
to
micro
services
architectures
Topics
to
be
adressed
• IsolaZon
/
Security
• Requires
Linux
Kernel
(Workarounds
via
boot2docker)
• Maturity
of
tools
VM
VM
Container
Container
Svc
3
Container
Bins/Libs

16. What
is
a
Docker
container
and
image?
16
Docker
Client
Host
Docker
Registry
Docker
Deamon
Container
1
Container
2
Container
3
Image
1
Container
N
Image
2
Image
3
Image
4
Docker
API
Private
running
stopped

17. Simple
example:
Run
a
Database
17
Docker
Client
Host
Docker
Registry
Docker
Deamon
mydb
leanix-­‐synclog
postgres:9.4
nginx
leanix-­‐synclog
// Start a Postgres DB
$ docker pull postgres:9.4
$ docker run –name mydb postgres:9.4
$ docker stop mydb
// Create a new image
$ docker build –-tag=“leanix/leanix-
synclog” .
$ docker push leanix/leanix-synclog
Docker
API
…
Private
running
stopped

18. Docker
Registry
(Docker
Hub)
18
• 100
„Official“
images
• >
45.000
public
images
• SubscripZon
model
for
private
images
(similar
to
GitHub)

19. Our
example
is
cut
into
3
containers
19
DB
Synclog
REST-­‐API
Synclog
GUI
Angular.JS
Nginx
Webserver
Postgres
Java
Dropwizard
Example
Docker
Images
postgres:9.4
leanix-­‐synclog
leanix-­‐synclog-­‐client

20. Synclog
service
in
context
of
enZre
leanIX
architecture
20
Reverse
Proxy
(nginx)
eam
(Core
App)
mtm
(User
Mgmt)
synclog
export
webhooks
noZficaZons
images
….
Requests
• Auth
between
Services:
oAuth2
• Single
Sign
on
(with
customer)
SAML
2.0

21. Create
custom
docker
image
based
on
exisZng
images
21
Source:
Docker
FROM dockerfile/java:oracle-java7
# Copy JAR and config into container
COPY target/leanix-synclog-0.1.0 /
COPY config.yml /
COPY run.sh /
RUN chmod +x /run.sh
# Expose port 9100 and run java process
EXPOSE 9100
WORKDIR /
# Run command
CMD ["./run.sh"]
leanix-­‐synclog/Dockerfile
$ docker build –-tag=“leanix/leanix-synclog” .
$ docker push leanix/leanix-synclog

22. How
to
Ze
everything
together?
docker-­‐compose
(was:
fig)
22
api:
build: .
links:
- db
ports:
- "9100:9100”
db:
image: postgres
docker-­‐compose.yml
$ docker-compose up
$ docker-compose stop
#!/bin/bash
# Replace address
sed -i "s/localhost:5432/
$DB_1_PORT_5432_TCP_ADDR:5432/" config.yml
java -jar leanix-synclog-0.1.0.jar db migrate
config.yml
java -jar leanix-synclog-0.1.0.jar server
config.yml
leanix-­‐synclog/run.sh

23. Docker
UI
–
Get
visual
overview
and
controls
for
Docker
(made
with
Angular)
23
$ docker run -d -p
9999:9000 --name
dockerui --
privileged -v /var/
run/docker.sock:/
var/run/docker.sock
dockerui/dockerui

24. Keep
an
eye
on:
Giant
swarm
Docker
orchestraZon
made
easy
24
{
"app_name":
"leanix-­‐synclog",
"services":
[{
"service_name":
"leanix-­‐synclog",
"components":
[
{
"component_name":
"leanix-­‐synclog",
"image":
”leanix/leanix-­‐synclog",
"ports":
[
”80/tcp"
],
"domains":
{
"synclog-­‐andrechrist.giganZc.io":
"80"
},
"dependencies":
[
{
"name":
"db_1",
"port":
5432}]
},
{
"component_name":
"db_1",
"image"
:
"postgres:9.4",
"ports":
["5432/tcp"]
}
]
}
]
}
$ swarm login
$ swarm up
$ swarm logs <ID>
$ swarm stop
$ swarm scaleup <COMP>
swarm.json

25. Agenda
25
Docker
Ansible
Jenkins
MoZvaZon
–
How
to
keep
focus
on
your
product?
Summary
/
Learnings

26. Jenkins
Overview
26
Simple
Extensible
Scalable
Flexible
Open
Source
Community
Good
Web
GUI
ConZnuous
IntegraZon
(CI)
Server
Thousands
of
plug-­‐ins
Distributed
BUILD
System
ConfiguraZon
of
Jobs
MIT
License
Very
acZve
(since
2011)

27. Jenkins
Job:
leanix-­‐synclog
27
Image
Source:
robots.com
Trigger:
GitHub
Push
1. Builds,
e.g.
using
maven
(Java)
2. Executes
Unit
Tests
3. Creates
Docker
image
4. Pushes
Docker
image
to
Docker
Hub
5. Deploys
to
staging
system
(via
Ansible)

28. Agenda
28
Docker
Ansible
Jenkins
MoZvaZon
–
How
to
keep
focus
on
your
product?
Summary
/
Learnings

29. Ansible
Overview
29
YAML
Syntax
Library
of
modules
Switch
from
ssh
push
to
pull
EncapsulaZon
by
roles
MIT
License
Strong
Growth
(since
2012)
OrchestraZon
of
Admin-­‐Tasks
Simple
Extensible
Scalable
Flexible
Open
Source
Community
Automate
repeatable
admin
tasks,
e.g.
install
packages,
set
configs,
...
Image
Source:
robots.com

30. Ansible
Architecture
30
Tasks
Install
Package
Copy
file
Apply
template
...
Deploy
synclog
Apply
template
Run
docker
Roles
init
...
docker
Playbooks
Provision
Server
leanix-­‐synclog
...
postgres
Hosts
SVR-­‐DE-­‐TEST
SVR-­‐DE-­‐DEV
SVR-­‐DE-­‐WEB-­‐1
SVR-­‐US-­‐WEB-­‐1
via
ssh
...

31. Ansible
Example:
Provision
servers
31
# Provisions the frontend servers
---
- hosts: frontend
sudo: true
roles:
- {role: 'init'}
- {role: 'docker'}
- {role: 'updates'}
provision_server.yml
$ ansible_playbook provision_server.yml –I hosts/prod -v
hosts/prod
[frontend]
srv-de-web-1.leanix.net
srv-de-web-2.leanix.net
srv-us-web-1.leanix.net
srv-us-web-2.leanix.net
[backend]
srv-de-app-1.leanix.net
srv-de-app-2.leanix.net
srv-us-app-1.leanix.net
srv-us-app-2.leanix.net

32. Ansible
Example:
Configure
system
32
[…]
- name: Install System Packages
apt: pkg={{ item }} state=latest
with_items: ["curl", "wget", "python-software-properties", "software-properties-
common", "daemon", "supervisor"]
- name: German kb
command: loadkeys de
changed_when: false
- name: Set hostname on boot to short name from inventory list
template: src=hostname.j2 dest=/etc/hostname owner=root group=root mode=0644
register: hostname_file
[…]
roles/init/tasks/main.yml

33. Ansible
Example:
Deploy
service
33
[…]
- name: Start leanix synclog Docker container
shell: docker run -d
--name {{ item.1.name }}
-p {{ ansible_eth1.ipv4.address }}:{{ item.1.synclog_port }}:{{SERVICE_PORT }}
-e SERVICE=synclog
-e PROXY_SERVICE={{ PROXY_SERVICE }}
-e SWAGGER_BASEPATH={{ SWAGGER_BASEPATH }}
leanix/leanix-synclog
with_indexed_items: SYNCLOG_SERVICES
when: synclog_running.results[{{ item.0 }}].rc != 0
[…]
roles/init/tasks/main.yml

34. Agenda
34
Docker
Ansible
Jenkins
MoZvaZon
–
How
to
keep
focus
on
your
product?
Summary
/
Learnings

35. Key
Issues
&
SoluZon
Approaches
35
• Docker:
Usage
of
boot2docker
on
non
Linux
(OS
X,
Win)
• Docker:
Container
orchestraZon
on
producZon
systems
with
distributed
docker
deamons
• Ansible:
v1
not
running
on
Win
• Ansible:
For
some
tasks,
special
python
libs
need
to
be
on
the
target
host
Contribute
to
helper
tools
;-­‐)
e.g.
b2d-­‐sync
(node.js
tool)
Create
custom
soluZons
based
on
Ambassador
pa~ern
and
etcd
orchestrated
by
Ansible
Use
Vagrant
or
get
rid
of
Windows
;-­‐))
Check
in
tasks,
if
libraries
are
already
installed

36. Summary
36
20
days
3
hours
<
30
min
Effort
for
setup,
learning
and
trouble
shooZng
for
Ansible
&
Jenkins
Ramp-­‐Up
of
a
new
employee
unZl
first
commit
Time
unZl
a
fresh
Server
is
setup
with
all
required
services
14
days
For
changing
our
Vagrant
based
environment
to
docker
&
docker-­‐compose

37. 37
THANKS!
Follow
us
@leanix_net
Download
Ansible
Example
Code
github.com/leanix/codetalks_2014_demo
We
are
hiring!!!
• Frontend
Developers
• Backend
Developers
• MarkeZng
&
Sales
www.leanix.net

38. Backup
38

39. Growth
and
DigitalizaZon
leads
to
increasing
IT
complexity
39
-me
Growth
/
Digitaliza-on
20-­‐30
ApplicaZons
50-­‐80
ApplicaZons
>
150
ApplicaZons

40. Lacking
transparency
of
the
IT
landscape
is
a
strong
barrier
for
innovaZon
40
35
b€
overspent
due
to
redundant
applicaZons
Source:
Detecon
/
McKinsey,
15%
of
applicaZons
can
be
consolidated
Inefficient
processes
due
to
head
monopoly

41. leanIX
is
a
smart
plahorm
which
helps
companies
to
opZmize
their
IT
landscape
41
Fact
Sheets
&
Tagging
Context-­‐based
Search
API,
Import
&
Export
Comments
&
Threads
IT
Inventory
Collabora-on
PlaPorm
Interac-ve
Repor-ng
AcZvity
Stream
&
NoZficaZons
SubscripZon
Print
&
Export
(PDF)
Best
PracZce
Reports
InteracZve
AdapZon

42. leanIX
connects
the
dots
in
the
ecosystem
of
modern
IT
management
42
Collabora-on-­‐
&
Document
Mgmt
IT
Service
Management
&
Help
Desk
Requirements-­‐
&
Business
Process
Mgmt
Project
PorPolio-­‐
and
Ressource-­‐Management
Selected
products
to
illustrate
Out-­‐of-­‐the-­‐box
IntegraZonen
REST
API
&
SDKs
developer.leanix.net

43. Partnering
/
IntegraZon
43
Sync