Learn OPENSHIFT-TEMPLATES with Real Code Examples

Deploy a Node.js application with database service and route

Provision multi-tier applications with frontend, backend, and cache

Instantiate templates for staging vs production environments

Parameterize image versions and resource limits

Use templates for CI/CD bootstrapping of test environments

Validate template syntax with `oc process --validate`

Check parameter names and default values

Ensure referenced objects (images/secrets) exist

Verify project/namespace permissions

Inspect OpenShift events after instantiation

Test template parameters with `oc process --parameters`

Dry-run template instantiation using `oc create --dry-run`

Validate deployed objects using `oc get all`

Check environment variables and config maps

Use CI/CD pipelines for automated validation

Direct instantiation via CLI

Web Console template import

CI/CD automated template deployment

Parameterized templates for multiple environments

GitOps-driven deployment pipelines

OpenShift CLI (`oc`)

OpenShift Web Console

OpenShift Templates stored in Git

OpenShift CI/CD pipelines

Parameter files and scripts for automation

OpenShift BuildConfig and DeploymentConfig

CI/CD tools like Jenkins, GitLab CI, Tekton

Secrets management with OpenShift Secrets

Image registries for container images

Monitoring tools: Prometheus, Grafana

Use parameters to minimize duplicate templates

Validate templates before deployment

Keep templates modular and reusable

Document parameters and defaults

Integrate templates with GitOps pipelines

Debugging complex templates with multiple objects

Managing parameter naming consistency

Ensuring secrets and sensitive info are handled securely

Maintaining templates across multiple environments

Integrating with automated pipelines reliably