The document discusses using Docker, Ansible and Jenkins for continuous delivery in enterprise environments. It provides examples of using these tools to automate infrastructure provisioning, application deployment and management. It also highlights best practices like automating everything, using Docker for stable and environment independent application containers, and addressing typical challenges in enterprise environments like proxies and security.

1. Continuous Delivery in Enterprise Environments
using Docker, Ansible and Jenkins_
Dennis Schulte, Marcel Birkner
codecentric AG

2. 2

3. Our Project Experience
3

4. Our experiences using Docker_
4
Build/Test/Deployment
Infrastructure
Getting Started with Docker
JBoss / Java EE
Standardization, Conformity, Compliance
(Security)
Dashboard
Microservices, Lightweight, Technology
Flexibility
Greenfield Enterprise Speed, Flexibility, Duplicated Environments
20 % Learning / using new technologies

5. Our experiences using Docker_
5
Build/Test/Deployment
Infrastructure
Getting Started with Docker
JBoss / Java EE
Standardization, Conformity, Compliance
(Security)
Dashboard
Microservices, Lightweight, Technology
Flexibility
Greenfield Enterprise Speed, Flexibility, Duplicated Environments
20 % Learning / using new technologies

6. JBoss / Java EE_
CI/CD Pipeline
Jenkins GitLab SonarQube Nexus SeleniumHub
Backend
DB2
ERP
LDAP
IMS
Applications
JBoss EE JBoss EEJBoss EE JBoss EE JBoss EE
JBoss EE JBoss EEJBoss EE JBoss EE JBoss EE
JBoss EE JBoss EEJBoss EE JBoss EE JBoss EE
JBoss EE JBoss EEJBoss EE JBoss EE JBoss EE
Platform
VMWareVagrant

7. Our experiences using Docker_
7
Build/Test/Deployment
Infrastructure
Getting Started with Docker
JBoss / Java EE
Standardization, Conformity, Compliance
(Security)
Dashboard
Microservices, Lightweight, Technology
Flexibility
Greenfield Enterprise Speed, Flexibility, Duplicated Environments
20 % Learning / using new technologies

8. Platform
CI/CD Pipeline
Jenkins
GitHub EE
SonarQube Nexus SeleniumHub
Backend
JIRA
WordPress
Xing
IMS
OpenStack
Dashboard_
Application
ReactJS Spring Boot Cassandra Spring Boot
AngularJS Scala Postgres Spring Boot
Static HTML NodeJS SpringBatch Keycloak
Neo4J JBoss EE NginxReactJS

9. Our experiences using Docker_
9
Build/Test/Deployment
Infrastructure
Getting Started with Docker
JBoss / Java EE
Standardization, Conformity, Compliance
(Security)
Dashboard
Microservices, Lightweight, Technology
Flexibility
Greenfield Enterprise Speed, Flexibility, Duplicated Environments
20 % Learning / using new technologies

10. Greenfield Enterprise_
Application
ReactJS Spring Boot DB2
SpringBatch
PostgresNginx
HSQL
SpringBatch
SpringBatch
SpringBatch
SpringBatch
SpringBatch
SpringBatch
SpringBatch
Spring Boot
Spring Boot
Admin
Platform
OpenStack
Backend
WebServices
Oracle
SAP
LDAP
Vagrant VMWare
CI/CD Pipeline
Jenkins
GitHub EE
SonarQube Nexus SeleniumHub

11. INFRASTRUCTURE AS CODE
11

12. 12
WRITE, PLAN, AND CREATE
INFRASTRUCTURE AS CODE

13. 13
OpenStack
AWS
VMWare
Platform
Compute
Instances
Compute
Instances
Compute
Instances
Compute
Instances
JBoss EE
Spring Boot
ReactJS
Neo4j
Infrastructure Automation_

14. Terraform :: Define Region & SSH Key Pair_
14

15. Terraform :: Define Security Group_
15

16. Terraform :: Define Resource_
16

17. Terraform :: Roll out_
•terraform plan
•terraform apply
17

18. 18
APP DEPLOYMENT, CONFIGURATION
MANAGEMENTAND ORCHESTRATION

19. Ansible :: CD Infrastructure Provisioning_
•ansible-playbook site.yml
19
CI/CD Pipeline
Jenkins GitLab SonarQube Nexus SeleniumHub

20. Ansible :: Jenkins Role (directory listing)_
20

21. Ansible :: Jenkins Role (Ansible Task Excerpt)_
21

22. Ansible :: Application Provisioning_
•ansible-playbook site.yml
22
Application
ReactJS Spring Boot Postgres

23. Ansible :: Spring Boot Role (excerpt)_
23

24. Ansible :: Application Deployment_
•ansible-playbook deploy-example-application.yml
--extra-vars "version=1.0.0"
•ansible-playbook undeploy-example-application.yml
24
ReactJS Spring Boot Postgres

25. 25
Ansible :: Infrastructure Repository :: Inventory & Playbooks_
Ansible Playbooks & Settings
{Environment specific settings
{

26. Continuous Delivery
using Docker
26

27. Software Development Process_
27
Developer
GitLab Jenkins
SonarQube
Nexus
Build and Release
SeleniumHub
Docker Registry
Deployment
Jenkins
GitLab
Staging
Spring Boot
Test
Spring Boot
Prod
Spring Boot
Dev
Spring Boot

28. Live Demo
28

29. 29
Jenkins :: Docker Images Build Jobs_

30. 30
Jenkins :: Example App Build & Deploy Jobs_

31. 31
Jenkins :: Application Deployment Job_

32. 32
Jenkins :: Example Spring Boot Application_

33. Demo End
33

34. Docker :: Image Hierarchy_
34
centos:7
jre:8jdk:8
jenkins-master:LTS example-application:
1.0.0
nexus:LTS sonarqube:LTS example-application:
1.0.0
example-application:
1.0.0
example-application:
1.0.0
example-application:
1.0.0

35. Docker :: JRE & Example Application Dockerfile_
35
jre:8
example-application:
1.0.0

36. Docker :: Image Hierarchy :: JBoss Migration_
rhel:7.2
jre:8jdk:8
jenkins-master:LTS eap:6.4nexus:LTS sonarqube:LTS
jboss-application:
1.0.0
jboss-application:
1.1.0
jboss-application:
1.2.0

37. Docker :: EAP Dockerfile_
37
eap:6.4

38. Docker :: JBoss Dockerfile_
38
jboss-application:1.0.0

39. Best Practices
39

40. •Everything is in version control
•Use Ansible inventory for environment specific information
•Use Ansible Vault for secure storage for passwords
•Generate Jenkins Jobs automatically via Job DSL
• GitLab REST API
•One Click Release & Deployments
Best practices_
40
Automate Everything

41. •All application run in Docker container
•Environment independent Docker images
•Use latest OS version (recent Kernel)
•Use fixed Docker / Ansible versions
•Have a clone of every system for testing new versions
• incl. CI/CD Pipeline
•Create User / Group (uid/gid) per Application Type
• required for volume mount permissions
•Do not run Docker Container under root!
Docker_
41
Stable Docker Setup

42. 42

43. •Company Proxies
• HTTPs / Man-in-the-Middle
•Self-signed Certificates (HTTPs)
•Freedom to spin up servers using Terraform
•Automate network configuration
•Keynote
• Jean-Jacques van Oosten: "Do not compromise!"
Enterprise Environments_
43
Typical problems

44. 44

45. “Thanks for your attention.”
45
Marcel Birkner,
Software-Consultant
codecentric AG
Hochstraße 11
42697 Solingen, Deutschland
marcel.birkner@codecentric.de
www.codecentric.de
blog.codecentric.de
marcelbirkner
Senior IT-Consultant
codecentric AG
Hochstraße 11
42697 Solingen, Deutschland
dennis.schulte@codecentric.de
www.codecentric.de
blog.codecentric.de
denschu
Dennis Schulte,