setting up environment. • All you need to do is develop apps. • To make life easier add webhooks to Jenkins, Github, etc. • Provides a standard way for admins to resource monitoring, scaling, application monitoring, performance, etc rather than spending time on setting up environment.
• Docker is core and Kubernetes is heart and kidney of OpenShift that keeps it running. • OpenShift runs on top of Kubernetes cluster, with data stored in etcd.
deployments. • Managing and promoting images using Source to Image (S2I) and Internal Docker Registry. • OpenShift is more of developer facing and Kubernetes is more of operations teams. • Dedicated web console • Team and User tracking for organizing a large developer organization. • App management at scale.
Docker or Kubernetes directly you start with containerizing your application i.e. build your own containers. • But with OpenShift you don’t have to worry about it, OpenShift will build containers for you. • But if you want to run your own containers you can do that as well.
code, detects the environment, builds the code as a developer would do, on a base image specific to that environment, if build is successful the image is pushed to internal OpenShift registry. • Enables rapid deployment. • Allows the underlying image to be up to date with somebody else managing it for you.
world. • By default it is HAProxy based router, but OpenShift supports other routers as well. • It looks at the host header of incoming traffic and depending on it, the traffic will be assigned to particular service and service will then pass it to pods. • It can be deployed by cluster admin.
OpenShift Online - A publicly hosted PAAS for individual developers or teams. • OpenShift Dedicated - Deploy, manage and support OpenShift instances running on AWS. • OpenShift Enterprise - For organizations who want to deploy and manage their OpenShift instances on their choice of on-premise hardware or certified cloud provider.
Application Platform as a Public Cloud Offering https://www.redhat.com/en/about/press-releases/red-hat-launches-openshift-dedicated-delivering-its-container- application-platform-public-cloud-offering • What Is the OpenShift Architecture? https://docs.openshift.org/latest/architecture/index.html • Red Hat’s contribution to Kubernetes http://www.slideshare.net/drettori/kube-12 • OpenShift 3 Walkthrough https://www.youtube.com/watch?v=yFPYGeKwmpk • Using GitHub Webhooks on your local machine https://www.youtube.com/watch?v=--wNO4lV6WA • Docker, Kubernetes, OpenShift: Deploy, Scale, Build - Ryan Jarvinen https://www.youtube.com/watch? v=jRzYv7KaZKo • S2I https://docs.openshift.com/enterprise/3.0/architecture/core_concepts/builds_and_image_streams.html#source- build
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