Red Hat provided tools useful for debugging applications running in OpenShift.

1. CONFIDENTIAL Designator
OpenShift Application
Debugging Tools for
Developers
Michael Greenberg
Red Hat - Cloud Consultant
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2. CONFIDENTIAL Designator
Agenda
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● Pitfalls when Debugging and Testing for OpenShift
● Options for Application Development on/for OpenShift
● Debugging remote applications using off-the-shelf tools
● Red Hat OpenShift IDE plugins:
○ Eclipse Plugin
○ IntelliJ IDEA Connector
○ Microsoft Visual Studio Code Extension Pack
● Red Hat CodeReady Studio
● Moving Forward

3. CONFIDENTIAL Designator
Classic Host Based Development
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-Cucumber
-JUnit
-Mockito
Trusted code
repos
-Jira
-Trello
ISSUES
DEV
ENV
UNIT
TEST
Trusted artifact
and image repos
Dev Host
-SonarQube
-Fortify
-AtomicScan
-Blackduck
-Twistlock
-Sysdig
-Dynatrace
CI SYSTEM
CODE
QUAL
SEC
SCAN
INT
TEST
UAT
PROD
OPENSHIFT KUBERNETES PLATFORM
-Arquillian
-JUnit

4. CONFIDENTIAL Designator
Development vs. Production
for Microservice Applications
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Development performed on a desktop Production is run on OpenShift.

5. CONFIDENTIAL Designator
Runtime Differences Between Dev Host and Cluster
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● Monitoring
● Logging
● Certificate management
● Credentials
● Scaling (load based)
● Security
● Network
● Storage

6. CONFIDENTIAL Designator
Where Should Developers Debug and Test?
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● IDE debug on local host
● IDE debug in Docker container(s) on local host
● IDE debug using Minishift/All-In-One on local host
● IDE debug on OpenShift cluster
● Develop & Debug using Red Hat OpenShift CodeReady Workspaces

7. CONFIDENTIAL Designator
Extending Debugging to Pods
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-Cucumber
-JUnit
-Mockito
-SonarQube
-Fortify
-AtomicScan
-Blackduck
-Twistlock
Trusted code
repos
-Sysdig
-Dynatrace
-Jira
-Trello
CI SYSTEM
ISSUES
DEV
ENV
UNIT
TEST
CODE
QUAL
SEC
SCAN
INT
TEST
UAT
PROD
Trusted artifact
and image repos
OPENSHIFT KUBERNETES PLATFORM
-Arquillian
-JUnit
Dev Host

8. CONFIDENTIAL Designator
Debugging Remote
Applications Using
Off-The-Shelf Tools
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9. CONFIDENTIAL Designator
Debugging Java on a Remote Server/Container
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# Run Java in Debug Mode on the remote server:
$ java -Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=y
# Optionally Connect to a Remote Server using Port Forwarding
$ ssh -L 8000:localhost:8000 root@<remoteserver>
# Connect your debugger
$ jdb -attach localhost:8000 -sourcepath ~/dev/remote/src/main/java/
# Port Forwarding to a Pod/Container
# oc/kubectl port-forward <pod> 8000:8000

10. CONFIDENTIAL Designator
Red Hat OpenShift Eclipse
Plugin
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11. CONFIDENTIAL Designator
Eclipse Plugin for OpenShift Installation
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12. CONFIDENTIAL Designator
Eclipse Plugin Welcome to Red Hat
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13. CONFIDENTIAL Designator
Red Hat OpenShift Connector
for IntelliJ IDEA
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14. CONFIDENTIAL Designator
IntelliJ OpenShift Connector Installation
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Manually download:
- odo v0.0.20
Debugging requires
manual port forwarding.

15. CONFIDENTIAL Designator
Red Hat OpenShift
Extension for Microsoft
Visual Studio Code
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16. CONFIDENTIAL Designator
Visual Studio Code OpenShift Extension Pack Installation
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Download:
- oc
- odo
via IDE.
Debugging requires
manual port forwarding.

17. CONFIDENTIAL Designator
Red Hat CodeReady Studio
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18. CONFIDENTIAL Designator
RedHat CodeReady Studio
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https://developers.redhat.com/products/codeready-studio/download
Install using:
java -jar codereadystudio-<installername>.jar

19. CONFIDENTIAL Designator
Moving Forward
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20. CONFIDENTIAL Designator
Red Hat CodeReady Workspaces
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● Centralized developer environments
● Container-based workspaces
● Source code protection
● Pre-built or custom stacks
● Enterprise integration (SSO, LDAP, AD)
● Browser-based IDE

21. CONFIDENTIAL Designator
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Award-winning support, training, and consulting
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Thank you
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