OpenShift in a Nutshell - LinuxChixAR

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OpenShift in a nutshell

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whoami > Victoria Martínez de la Cruz > Software Engineer @ Red Hat Inc. > LinuxChix Argentina co-founder > OpenStack Outreachy coordinator @vkmc < [email protected] < vmartinezdelacruz.com <

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Objetivos ● Entender qué son y cómo se relacionan: Docker, Kubernetes y OpenShift ● Conocer qué son OpenShift Online, OpenShift Origin y OpenShift Enterprise ● Aprender a desplegar una aplicación simple en OpenShift ○ Usando la web console ○ Usando la command line interface

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Containers, everywhere...

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Docker ● Provides an extra layer of abstraction and automation for containers deployment and administration ○ Docker Engine ○ DockerHub ○ Dockerfile (YAML) ○ Docker compose (YAML) ● Contains the userspace (not kernel) ● Guarantees isolation ● Different use cases (!= VMs) ● Different lifecycle

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Kubernetes (k8s) ● Automate deploying, scaling and operating application containers ○ Scheduling ○ Lifecycle and health ○ Discovery ○ Monitoring ○ Security ○ Scaling ○ Persistence ○ Aggregation ● Desired-state concept ● Open source

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OpenShift ● Designed for traditional and cloud native apps ● Designed for development and production environments ● Helps develop, build and manage container based applications ● Polyglot ● Straight k8s underneath: use kubectl to interact with OpenShift cluster

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Deploying a simple app

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OpenShift Online Starter OpenShift as a Service Free basic plan with the following, ● 1 Project ● 1GiB Memory Included ● 1GiB Terminating Memory Included ● 1GiB Storage Included ● Resource Hibernation

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Parksmap

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Minishift Tool that helps you run OpenShift locally by running a single-node OpenShift cluster inside a VM. https://www.openshift.org/minishift/ 1. Get Minishift installer (GNU/Linux, Windows, MacOS) 2. Run minishift start 3. Hack, hack, hack!

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Django blog

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Recursos Hands on OpenShift: https://learn.openshift.com/ Libros OpenShift: https://developers.openshift.com/overview/books. html