# IBM Developer Meetup - OpenShift

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### What is OpenShift?

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* Open Source Application Shift
  * OKD: The Origin Community Distribution of Kubernetes
  * PaaS

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### OpenShift 4 Platform

* Fully integrated and automated
* Seamless Kubernetes deployment
* Fully automated installation
* 1-click platform updates
* Autoscaling of cloud resources

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### Kubernetes vs OpenShift

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> Application Management

| Kubernetes                         | OpenShift                                                     |
| ---------------------------------- | ------------------------------------------------------------- |
| Time needed for cluster setup      | Various Cloud Vendors                                         |
| VM or Baremetal server preparation | On-Prem and user-configured Servers also via Ansible Playbook |
| Configure Master Node              |                                                               |
| Configure Worker Node              |                                                               |

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> Security

| Kubernetes                                                        | OpenShift                                                |
| ----------------------------------------------------------------- | -------------------------------------------------------- |
| Since projects involve people with various permissions            | Provided Out-of-Box                                      |
| RBAC (Roll Based Access Control)                                  | Add users to Project and grant permissions               |
| IAM (Integrated Access Management)                                | Restrictions on containers running with root permissions |
| Authentication                                                    | Includes security-related elements                       |
| However, various publicly available images can be run immediately | FIPS Compliance                                          |

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> Application Deployment

| Kubernetes                              | OpenShift                                                                    |
| --------------------------------------- | ---------------------------------------------------------------------------- |
| Individual application deployment steps | Create App in OpenShift Project                                              |
| Write code                              | Create image with Source-to-Image                                            |
| Container Image Build                   | Register in Image Stream                                                     |
| Registry registration                   | Update App with changed Image                                                |
| CI / CD setup                           | Additionally, Jenkins DevOps can be configured through the Dashboard Catalog |
| Application deployment                  |                                                                              |

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