A Collection of OpenShift demos

• A Collection of OpenShift demos
  • Installing OpenShift CLI v4.x
  • Installing OpenShift CLI v3.11
  • OpenShift Project Creation
  • OpenShift User Creation
  • Update users password
  • Remove user from OpenShift
  • OpenShift Scalability
  • Enabling monitoring for user-defined projects
  • OpenShift Autoscaling
  • Source to Image builds
  • Source to Image builds, with webhook triggers for builds
  • Build from template for two tier -- App Server and Backend
  • Python (Django) - PostgreSQL Backend
  • ConfigMaps
  • Persistent Storage Using NFS - OCS
  • Pipelines
  • Operators
  • Code Ready Workspaces
  • Resource Quotas and Limits
  • Machine Learning
  • Red Hat Service mesh
  • K-Native
• Authors

Installing OpenShift CLI v4.x

##Linux
curl -OL https://mirror.openshift.com/pub/openshift-v4/clients/ocp/latest/openshift-client-linux.tar.gz
tar -zxvf openshift-client-linux.tar.gz
mv oc /usr/local/bin
mv kubectl /usr/local/bin
chmod +x /usr/local/bin/oc
chmod +x /usr/local/bin/kubectl
oc version
kubectl version

##MAC
curl -OL https://mirror.openshift.com/pub/openshift-v4/clients/ocp/latest/openshift-client-mac-$VERSION.tar.gz
tar -zxvf openshift-client-mac-$VERSION.tar.gz
sudo mv oc /usr/local/bin
sudo mv kubectl /usr/local/bin
chmod +x /usr/local/bin/oc
chmod +x /usr/local/bin/kubectl
oc version
kubectl version

Installing OpenShift CLI v3.11

##Linux
curl -OL https://github.com/openshift/origin/releases/download/v3.11.0/openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
tar -zxvf openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
sudo mv openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit/oc /usr/local/bin
chmod +x /usr/local/bin/oc
oc version

##MAC
curl -OL https://github.com/openshift/origin/releases/download/v3.11.0/openshift-origin-client-tools-v3.11.0-0cbc58b-mac.zip
unzip openshift-origin-client-tools-v3.11.0-0cbc58b-mac.zip
sudo mv openshift-origin-client-tools-v3.11.0-0cbc58b-mac/oc /usr/local/bin
chmod +x /usr/local/bin/oc
oc version

OpenShift Project Creation

oc new-project "example-project" \
  --description="Example  Description" \
  --display-name="example-project"

OpenShift User Creation

oc create user sample-user

Update users password

htpasswd </path/to/users.htpasswd> sample-user

Remove user from OpenShift

htpasswd -D </path/to/users.htpasswd> sample-user

OpenShift Scalability

oc new-app https://github.com/sclorg/nodejs-ex
oc get pods  | grep nodejs
oc expose svc/nodejs-ex
oc scale dc nodejs-ex --replicas=3
oc get pods | grep nodejs
oc scale dc nodejs-ex --replicas=1
oc get pods | grep nodejs
oc delete all --selector app=nodejs-ex

OpenShift Autoscaling

oc new-app https://github.com/sclorg/nodejs-ex
oc get pods  | grep nodejs
oc expose svc/nodejs-ex
oc autoscale dc/nodejs-ex --min 1 --max 5 --cpu-percent=10
oc set resources  dc/nodejs-ex --requests=cpu=200m,memory=256Mi --limits=cpu=400m,memory=512Mi

run siege
siege -r 3000 -c 50 http://urlendpoint

Source to Image builds

Source-to-Image Builders

Source to Image builds, with webhook triggers for builds

Source-to-Image Builders with web hooks

Build from template for two tier -- App Server and Backend

Python (Django) - PostgreSQL Backend

ConfigMaps

Using ConfigMaps

Persistent Storage Using NFS - OCS

Pipelines

The following is a list of the pipeline samples available in container-pipelines repository:

• Basic Tomcat - Builds a Java Application like Ticket Monster and deploys it to Tomcat
• Basic Spring Boot - Builds a Spring Boot application and deploys using an Embedded Servlet jar file
• Blue Green Spring Boot - Build a Spring Boot application and deploys it using a blue-green deployment
• Secure Spring Boot - Build a Spring Boot app and deploy with a pipeline that includes code coverage reports, dependency scanning, sonarqube analysis
• Cross Cluster Promotion Pipeline - A declarative syntax pipeline that demonstrates promoting a microservice between clusters (i.e. a Non-Production to a Production cluster)

Link: https://github.com/redhat-cop/container-pipelines

Operators

Openshift Operators

Code Ready Workspaces

Download Red Hat CodeReady Workspaces
Operator Installer - 1.0.0

oc login https://master.youropenshift.com:8443
tar -zxvf codeready-workspaces-<version>-operator-installer.tar.gz
cd codeready-workspaces-operator-installer/
#optional: Modify config.yaml
./deploy.sh  --deploy config.yaml --project=your-project

Resource Quotas and Limits

Resource Quotas and Limits

Machine Learning

MLFlow Tracking Server Operator
mlflow-example

Red Hat Service mesh

Service Mesh Deployment On OCP4
Deploying Istio bookinfo app on OpenShift 4.2

K-Native

Deploy Serverless Applications on Openshift 4.2
Deploying Secure Istio bookinfo app on OpenShift 4 Knative CLI Demo On OpenShift 4.2
Knative Tutorial
Compile Driver Knative + Kafka + Quarkus demo.

Videos

Knative + Kafka + Quarkus demo.
Knative + Kafka + Quarkus demo.

Authors

• Tosin Akinosho - Initial work - tosin2013