deploy-app

name	deploy-app
description	Guide deploying an application to OpenShift. Use when the user wants to deploy a new app, create a deployment, set up services and routes. Covers S2I, Docker, Helm, and raw YAML approaches.
metadata	{"author":"kcns008","version":"0.1.0"}

Deploy Application

Steps

1. Ask about the app

   • What's the source? (Git repo, container image, local code)
   • What's the runtime? (Java, Node.js, Python, Go, etc.)
   • Which namespace/project?

2. Choose deployment method

   Method	Best For
   oc new-app	Quick deploy from source or image
   oc new-build + deploy	Custom build pipeline
   Helm chart	Complex apps with config
   Raw YAML/Kustomize	Full control

3. Deploy

   # From Git (S2I)
   oc new-app https://github.com/user/repo.git --name=myapp -n myns
   
   # From image
   oc new-app myimage:tag --name=myapp -n myns
   
   # Expose
   oc expose svc/myapp
   

4. Verify

   oc_get: resource=pods -n <namespace>
   oc_get: resource=svc -n <namespace>
   oc_get: resource=route -n <namespace>
   

5. Set up health checks (if not auto-detected)

   oc set probe dc/myapp --readiness --get-url=http://:8080/health
   oc set probe dc/myapp --liveness --get-url=http://:8080/health
   

6. Configure resources

   oc set resources dc/myapp --requests=cpu=100m,memory=256Mi --limits=cpu=500m,memory=512Mi