What you should know to successfully work with Java Cloud Service on the Oracle Public Cloud.

1. Java Cloud Service & WLS 12c
What You Should Know
OTN LatAm Tour 2017 Dr. Frank Munz
munz & more

2. 2
Frank Munz
•Founded munz & more in 2007
•17 years Oracle Middleware,
Cloud, and Distributed Computing
•Consulting and
High-End Training
•Wrote two Oracle WLS and
one Cloud book

3. #0
WebLogic 12c

4. New in WebLogic 12.2.1
1. JDK 8
2. Java EE 7
3. IDE
4. Console
5. Deployment
6. JMS
7. Cluster
8. WLST
9. WLDF
10. REST
11. Docker
12. Multi Tenancy
13. ZDT
14. Java CloudService
munz & more #4

5. A Whirlwind Tour…
More details in this WebLogic 12c presentation
munz & more #5
https://www.slideshare.net/FrankMunz1/12-things-you-should-know-about-weblogic-server-1221-oow2015

6. WebLogic Multi Tenancy: Isolation
Tenants within a domain are isolated:
• Runtime: JDK: heap, CPU
• Security: realm, user
• Admin: life cycle, roles
• Data / traffic: JNDI, JDBC,Coherence,
requests
munz & more / globalcollect 2016

7. NO Vendor Lock-In with Docker
Supported by every major cloud provider:
munz & more #7
On premise -> all clouds
Docker
Registry
Docker Container Service
EC2 Container Service
Google Container Engine
Azure Container Service
Bluemix Containers

8. RESTful Admin: Read
Get server name and state of managed server
with name surf1 via admin server
GET (e.g. via web browser)
http://localhost:7001/management/weblogic/latest
/domainRuntime/serverLifeCycleRuntimes/
surf1?links=none&fields=name,state
Response:
{ "name": "surf1", "state": "RUNNING" }
munz & more #8

9. Elastic Cluster
WebLogic 12.1.2: Dynamic Cluster config
WebLogic 12.2.1: Elastic Cluster runtime
+ pre / post scaling
callout to scripts
munz & more #9
How to scale?
• Console
• WLST
• REST
• Policy/Action
• Calendar based

10. ZDT: Rollout Oracle Home
https://community.oracle.com/docs/DOC-996731

11. #1
Oracle PaaS

12. Know The Essential Cloud Services
ACCS JCS OCCS
Deploy Java, Python,
Ruby code
+ JSON file: start
command
Deploy Java EE
module, JMS, JDBC,
XA.
Deploy (stack of)
Docker containers
Language container
as service
WebLogic
as Service
Docker container
as Service

13. #2
Developer CS

14. Developer CS
Cloud native SDLC
• Connects to github
• Includes
– maven
– Hudson
– Wiki pages
– Jira like ticket system
• Ready for testing
• Deploys to JCS, ACCS, Mobile CS
munz & more #14
Free
development
tooling in cloud

15. Developer CS
munz & more #15

16. #3
Prerequisites
for JCS

17. Prerequisites
JCS will never work, unless you …
1. set replication policy for storage
2. Create DB as a service for JCS
3. Create JCS
-> Write down all the passwords (which have different
requirements), ID domain, and storage container name

18. #4
(1) Replication
Policy

19. Go to Storage & Set Policy
munz & more #19
You will only see this
screen only once!
Not setting the policy
causes all kind of
weird issues

20. Prereq: Set Replication Policy
Details:
https://docs.oracle.com/en/cloud/iaas/stora
ge-cloud/cssto/selecting-replication-policy-
your-service-instance.html

21. #5
(2) DB

22. Prereq: Create DB as Service
A DB is mandatory for JCS
munz & more #22
Define
DB
pwd
Specify
Cloud
log-in
creadential
Create
Storage
Container

23. Storage Container
Correct syntax / name of storage container:
Storage-IDENDITYDOMAIN/yourContainerName
munz & more #23
You create it once
(with the DB).
Later specify it at
JCS configuration

24. Identity Domain
Tip: Always save your Cloud Welcome Email
munz & more #24
ABCDomain

25. In the Same Email: Data Center
Most OPC links DC agnostic, but storage is not:
munz & more #25

26. Resend Welcome Email
munz & more #26

27. Wait Until DB is Created
munz & more #27

28. #6
(3) JCS

29. munz & more #29

30. Create JCS
munz & more #30
Define
WLS
pwd
Specify
DB log-in
details:
‘sys’ +
credential
DB create
NOT welcome1 !!
Specify
Storage &
log-in
Details
Storage
admin

31. JCS is Created
munz & more #31

32. #7
Access
Admin Console

33. When you create a JCS
munz & more #33

34. … you will likely forget the following:
munz & more #34
(Unfortunate)
Default Setting:
NO admin console
but sample apps

35. #8
Access
Rules

36. To the Rescue: Access Rules
munz & more #36
Re-enable
Admin Console

37. #9
Deployments

38. Deployment
Done via WebLogic console.
munz & more #38

39. #10
Port Mappings

40. Port Mapping
Why you can
access your
deployment in
most demos
‘without’
specifying the
port

41. WebLogic Admin Console

42. #11
Elasticity

43. Elasticity
munz & more #43

44. Scale Out
44

45. Auto Scaling

46. #12
Patching

47. Patching

48. #12
Backups

49. Backups

50. Key Take Aways
Make sure to understand
• Java CS is WebLogic as a Service
• Dependencies with Storage and DB CS
• Storage Container name
• Little gotchas (admin console disabled)
• Port mappings
• ACCS for polyglot, lightweight, non Java EE
munz & more #50

51. www.linkedin.com/in/frankmunz/
www.munzandmore.com/blog
facebook.com/cloudcomputingbook
facebook.com/weblogicbook
@frankmunz
youtube.com/weblogicbook
-> more than 50 web casts
Don’t be
shy J