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![26
But what did Openshift add to Docker run?
masters-imac:~ master$ oc get rc
NAME DESIRED CURRENT READY AGE
rc/myotherpod-1 1 1 1 8m
rc/mypod-1 1 1 1 8m
Replication Controllers provides extra feature to pods such as rolling update:
$ kubectl rolling-update NAME [NEW_NAME] --image=IMAGE:TAG
// Update pods of frontend-v1 using new replication controller data in frontend-v2.json.
$ kubectl rolling-update frontend-v1 -f frontend-v2.json
// Update pods of frontend-v1 using JSON data passed into stdin.
$ cat frontend-v2.json | kubectl rolling-update frontend-v1 -f -](https://image.slidesharecdn.com/dockerdhahrannov2017-171111124003/85/Docker-Dhahran-November-2017-meetup-27-320.jpg)
Uploaded byWalid Shaari
Docker Dhahran November 2017 meetup
The document is a presentation from a Kubernetes/OpenShift meetup held in Dhahran on November 10, 2017, featuring insights into Kubernetes as an open-source platform for automating containerized applications and the advantages of using OpenShift. It discusses various tools, use cases, and installation processes related to Kubernetes and OpenShift, highlighting their features such as enhanced security and enterprise-level support. The document includes practical demos and links to further resources for learning and engaging with these technologies.
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Docker Dhahran November 2017 meetup
- 1. P R ACTIC A L IN T RO DUCT IO N TO O R CH EST R AT IO N : K UBE R N E T E S/O P ENSH IFT DH A H R A N DO CKER M EET U P 10T H NOV EM BER 2017 BY : WA LID S H A A R I
- 2. System engineer, passionateabout Open source working for a large enterprise with anti DevOps patterns. Recently working with network team on evaluating Network Automation for multi vendor data center. @walidshaari walid.shaari@linux.com https://www.linkedin.com/in/walidshaari/ https://medium.com/@walidshaari/ https://github.com/walidshaari/Kubernetes-Certified-Administrator $oc whoami RHCA IV
- 3. Thank you, oursponsor, TAM Development LLC for hosting the Dhahran Docker meetup. Thank you Mustafa Dahab for presenting TAM Development LLC Rancher, and Docker in production.
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- 8. 7 Borg Mesos Omega Kubernetes Hashicorp Nomad Docker swarm Rancher Cattle 15 yearsof experience of running production workloads at Google
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- 14. Among more andmore other use cases 13 https://kubernetes.io/case-studies/
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- 16. 15 • Openshift is an opiniatedKubernetes - you can use Kubectl Kubernetes client to interact with an OpenShift cluster • Red Hat does not use all the Kubernetes abstractions “Objects”, however, they have their own and wrap around standard Kubernetes objects. e.g. Openshift router vs. K8s ingress controller. • Medium: difference between kubernetes and openshift Openshift relationship to Kubernetes
- 17. 16 • Enhanced Security • Ease of deployments in different scenarios (e.g. disconnected, standalone, HA, Azure, ..etc) •Enterprise level support • Opinionated architecture and out of the box platform • Focus on what is more important e.g. PaaS FaaS not CaaS • Easy plumbing and pipelines for developers and ops alike. • You can still use K8s under the hood. Why Openshift not Kubernetes? Medium: difference between kubernetes and openshift
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- 21. 20 masters-imac:~ master$ minishift oc-env export PATH="/Users/master/.minishift/cache/oc/v3.6.0:$PATH" # Run this command to configure your shell: # eval $(minishiftoc-env) masters-imac:~ eval $(minishift oc-env) minishift
- 22. 21 masters-imac:~ master$ minishift oc-env export PATH="/Users/master/.minishift/cache/oc/v3.6.0:$PATH" # Run this command to configure your shell: # eval $(minishiftoc-env) masters-imac:~ eval $(minishift oc-env) minishift
- 23. 22 oc completion bash > oc-completion.sh source oc-completion.sh oc version ochelp oc types oc new-project oc get projects oc get namespaces kubectl completion bash > k8s-completion.sh source k8s-completion.sh kubectl version Kubectl help Kubectl get projects Kubectl get namespaces Can kubectl create a namespace ? How about a project? Client tools demo
- 24. 23 Pods are the core Kubernetes Component masters-imac:~ master$ ocrun mypod --image=gcr.io/kuar-demo/kuard-amd64:1 deploymentconfig "mypod" created masters-imac:~ master$ oc run myotherpod --image=gcr.io/kuar-demo/kuard-amd64:2 deploymentconfig "myotherpod" created masters-imac:~ master$ kubectl get pods NAME READY STATUS RESTARTS AGE myotherpod-1-33xmq 0/1 ContainerCreating 0 2m myotherpod-1-deploy 1/1 Running 0 2m mypod-1-6p37m 1/1 Running 0 2m masters-imac:~ master$ kubectl get pods NAME READY STATUS RESTARTS AGE myotherpod-1-33xmq 0/1 ContainerCreating 0 2m myotherpod-1-deploy 1/1 Running 0 2m mypod-1-6p37m 1/1 Running 0 2m masters-imac:~ master$ oc get pods NAME READY STATUS RESTARTS AGE myotherpod-1-33xmq 1/1 Running 0 3m mypod-1-6p37m 1/1 Running 0 4m
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- 26. 25 But what did Openshift add to Docker run? masters-imac:~ master$oc get all NAME REVISION DESIRED CURRENT TRIGGERED BY dc/myotherpod 1 1 1 config dc/mypod 1 1 1 config NAME DESIRED CURRENT READY AGE rc/myotherpod-1 1 1 1 8m rc/mypod-1 1 1 1 8m NAME READY STATUS RESTARTS AGE po/myotherpod-1-33xmq 1/1 Running 0 8m po/mypod-1-6p37m 1/1 Running 0 8m
- 27. 26 But what did Openshift add to Docker run? masters-imac:~ master$oc get rc NAME DESIRED CURRENT READY AGE rc/myotherpod-1 1 1 1 8m rc/mypod-1 1 1 1 8m Replication Controllers provides extra feature to pods such as rolling update: $ kubectl rolling-update NAME [NEW_NAME] --image=IMAGE:TAG // Update pods of frontend-v1 using new replication controller data in frontend-v2.json. $ kubectl rolling-update frontend-v1 -f frontend-v2.json // Update pods of frontend-v1 using JSON data passed into stdin. $ cat frontend-v2.json | kubectl rolling-update frontend-v1 -f -
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