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Developer Intro to OpenShift
- 1. MONOLITHS TO MICROSERVICES:APP TRANSFORMATION Hands-on Technical Workshop Ram Maddali Senior Architect @RamMaddali rmaddali@redhat.com Anand Akella Senior Architect aakella@redhat.com
- 2. A DEVELOPER INTRODUCTIONTO OPENSHIFT
- 3. CONTAINERS & CLOUD-NATIVEROADSHOW4 CLOUD-NATIVE CAPABILITIES WITH RED HAT OPENSHIFT ANY CONTAINER Amazon Web Services Microsoft Azure Google CloudOpenStackDatacenterLaptop ANY INFRASTRUCTURE APPLICATION LIFECYCLE MANAGEMENT CONTAINER ORCHESTRATION AND MANAGEMENT ENTERPRISE CONTAINER HOST
- 4. CONTAINERS & CLOUD-NATIVEROADSHOW5 CLOUD-NATIVE CAPABILITIES WITH RED HAT OPENSHIFT APPLICATION LIFECYCLE MANAGEMENT CONTAINER ORCHESTRATION AND MANAGEMENT ENTERPRISE CONTAINER HOST Service Discovery Routing Load Balancing Security Monitoring Conf Management Log Management Multi-tenancy Self-ServiceBuild Automation Deploy Automation CI/CD ANY CONTAINER Amazon Web Services Microsoft Azure Google CloudOpenStackDatacenterLaptop ANY INFRASTRUCTURE
- 5. A container isthe smallest compute unit CONTAINER
- 6. containers are createdfrom container images during a build CONTAINER CONTAINER IMAGE BINARY RUNTIME
- 7. IMAGE REGISTRY container imagesare stored in an image registry CONTAINER CONTAINER IMAGE CONTAINER IMAGE CONTAINER IMAGE CONTAINER IMAGE CONTAINER IMAGE CONTAINER IMAGE
- 8. an image repositorycontains all versions of an image in the image registry IMAGE REPOSITORY frontend:latest frontend:2.0 frontend:1.1 frontend:1.0 CONTAINER IMAGE mongo:latest mongo:3.7 mongo:3.6 mongo:3.4 CONTAINER IMAGE myregistry/frontend myregistry/mongo
- 9. PODPOD containers are wrappedin pods which are units of deployment and management, and share a common network address CONTAINER CONTAINERCONTAINER IP: 10.1.0.11 IP: 10.1.0.55
- 10. pods configuration isdefined in a deployment image name replicas labels cpu memory storage POD CONTAINER POD CONTAINER POD CONTAINER DEPLOYMENT
- 11. NODE (RHEL) pods aredeployed to and run on nodes POD CONTAINER POD CONTAINER POD CONTAINER NODE (RHEL) POD CONTAINER POD CONTAINER POD CONTAINER
- 12. POD services provide internalload-balancing and service discovery across pods CONTAINER POD CONTAINER POD CONTAINER BACKEND SERVICE POD CONTAINER role: backend role: backendrole: backendrole: backendrole: frontend
- 13. POD apps can talkto each other via services CONTAINER POD CONTAINER POD CONTAINER BACKEND SERVICE POD CONTAINER role: backend role: backendrole: backendrole: backendrole: frontend Invoke Backend API
- 14. POD routes add servicesto the external load-balancer and provide readable urls for the app CONTAINER POD CONTAINER POD CONTAINER BACKEND SERVICE ROUTE app-prod.mycompany.com > curl http://app-prod.mycompany.com
- 15. projects isolate appsacross environments, teams, groups and departments POD C POD C POD C PAYMENT DEV POD C POD C POD C PAYMENT PROD POD C POD C POD C CATALOG POD C POD C POD C INVENTORY ❌ ❌❌
- 16. templates define ablueprint for an application that can be instantiated within a project TEMPLATE (name=”foo”) source output triggers name labels strategy BUILD CONFIG image name replicas labels cpu memory storage DEPLOYMENT name labels port targetPort selectors protocol SERVICE name destination termination hostname ROUTE name labels repo IMAGESTREAM $ oc new-app foo
- 17. LAB: DEVELOPER INTRODUCTIONTO OPENSHIFT
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- 19. GOAL FOR LAB Inthis lab you will learn: ● Important OpenShift concepts for developers ● How OpenShift makes developers and architects happier ● How to do efficient round-trip development: ○ Separate dev from prod environments ○ Quick deployments using rsync / port-forwarding ○ Promoting apps using CI/CD Pipelines
- 20. LAB: DEVELOPER INTROTO OPENSHIFT SCENARIO 3 A DEVELOPER INTRODUCTION TO OPENSHIFT WEB: openshift-modernize-apps.katacoda.com
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- 22. RESULT OF LAB Inthis lab you learned how to: ● Do quick deployments with oc rsync ● Create a production environment separate from dev ● Promote tested/verified builds between environments using OpenShift pipeline builds You should now have two projects (dev and prod) running the same CoolStore app! In the next lab we will begin the process of breaking the monolith up into microservices.
- 23. DESIRED RESULT OFSCENARIO 3 OpenShift coolstore-dev Coolstore monolith Coolstore database (dev) Coolstore Binary coolstore-prod Coolstore monolith Coolstore database (prod) Pipeline Promotion mvn package
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Editor's Notes
- #5 Red Hat OpenShift is a complete container application platform that natively integrates technologies like docker and Kubernetes to provide a common platform for developers to build and manage containerized applications in a self-service fashion. It builds on top of Red Hat Enterprise Linux or Atomic Host, the trusted enterprise operating system which is used by 90% of Fortune 500 companies, and provides tools and services for building container images from source code and application binaries and managing their lifecycle in production at scale. Red Hat is a leader in both Kubernetes and docker community and is a top contributor to both communities to make sure these technologies fit smoothly to the needs of customers and users for building microservices on OpenShift.
- #6 Specifically for microservices, OpenShift provides a large set of capabilities to take the complexity out of building and running distributed systems at scale. It provides Service discovery for services find each other despite other services popping up and down as they scale or get deployed and undeployed. Routing and load balancing to be able to send traffic to the microservices and control how the traffic is distributed between multiple instances of the application enabling patterns like A/B testing Metrics and monitoring to make sure you can identify anomalies as a microservice starts to misbehave to consume too much resources Configuration and secret management to decouple environment specific data from the microservices and be able to provide both configuration and also sensitive data in a secure manner to them from environment to environment without the need to change the microservice itself. Central log management so that when microservices get undeployed or issues occur, the historic logs are kept and inventories in a central place for further investigation. Service isolation and granular access control to make sure microservices are only allowed to access and do what they are allowed to. Besides, it encourages collaboration by allowing for example developers to look into production without having access to make a change if that’s how your organization operates. OpenShift is the only platform in the market that provides multi-tenancy on top of Kubernetes and allows all teams and developers to work and collaborate on the same platform without the risk of interfering with each other projects or services.
- #7 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #8 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #9 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #10 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #11 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #12 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #13 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #14 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #15 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #16 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #17 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #18 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.
- #26 Developers will want to access learn.openshift.com where we have set up a number of self-paced hands-on scenarios that don’t require installation of any software, and completely runs in your browser. You’ll find scenarios for the runtimes I discussed today, as well as scenarios to learn more about how OpenShift itself works.