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Bharath KaimalBharath Kaimal
Bharath Kaimal
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Bharath Kaimal
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updates to kubernetes-deployments
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‎docs/openshift/deployments/index.md‎

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@@ -5,6 +5,7 @@ A Deployment provides declarative updates for Pods and ReplicaSets.
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You describe a desired state in a Deployment, and the Deployment Controller changes the actual state to the desired state at a controlled rate. You can define Deployments to create new ReplicaSets, or to remove existing Deployments and adopt all their resources with new Deployments.
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The following are typical use cases for Deployments:
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- Create a Deployment to rollout a ReplicaSet. The ReplicaSet creates Pods in the background. Check the status of the rollout to see if it succeeds or not.
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- Declare the new state of the Pods by updating the PodTemplateSpec of the Deployment. A new ReplicaSet is created and the Deployment manages moving the Pods from the old ReplicaSet to the new one at a controlled rate. Each new ReplicaSet updates the revision of the Deployment.
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- Rollback to an earlier Deployment revision if the current state of the Deployment is not stable. Each rollback updates the revision of the Deployment.
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- Use the status of the Deployment as an indicator that a rollout has stuck.
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- Clean up older ReplicaSets that you don’t need anymore.
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## Resources
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=== "OpenShift"
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[Deployments :fontawesome-solid-globe:](https://docs.openshift.com/container-platform/4.13/applications/deployments/what-deployments-are.html){ .md-button target="_blank"}
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[Deployments :fontawesome-solid-cloud-arrow-up:](https://docs.openshift.com/container-platform/4.13/applications/deployments/what-deployments-are.html){ .md-button target="_blank"}
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[Managing Deployment Processes :fontawesome-solid-globe:](https://docs.openshift.com/container-platform/4.13/applications/deployments/managing-deployment-processes.html){ .md-button target="_blank"}
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[Managing Deployment Processes :fontawesome-solid-cloud-arrow-up:](https://docs.openshift.com/container-platform/4.13/applications/deployments/managing-deployment-processes.html){ .md-button target="_blank"}
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[DeploymentConfig Strategies :fontawesome-solid-globe:](https://docs.openshift.com/container-platform/4.13/applications/deployments/deployment-strategies.html){ .md-button target="_blank"}
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[DeploymentConfig Strategies :fontawesome-solid-cloud-arrow-up:](https://docs.openshift.com/container-platform/4.13/applications/deployments/deployment-strategies.html){ .md-button target="_blank"}
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[Route Based Deployment Strategies :fontawesome-solid-globe:](https://docs.openshift.com/container-platform/4.13/applications/deployments/route-based-deployment-strategies.html){ .md-button target="_blank"}
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[Route Based Deployment Strategies :fontawesome-solid-cloud-arrow-up:](https://docs.openshift.com/container-platform/4.13/applications/deployments/route-based-deployment-strategies.html){ .md-button target="_blank"}
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=== "Kubernetes"
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[Deployments :fontawesome-solid-globe:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/){ .md-button target="_blank"}
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[Deployments :fontawesome-solid-cloud-arrow-up:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/){ .md-button target="_blank"}
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[Scaling Deployments :fontawesome-solid-globe:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#scaling-a-deployment){ .md-button target="_blank"}
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[Scaling Deployments :fontawesome-solid-cloud-arrow-up:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#scaling-a-deployment){ .md-button target="_blank"}
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## References
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app: nginx
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spec:
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containers:
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- name: nginx
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image: bitnami/nginx:1.16.0
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ports:
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- containerPort: 8080
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- name: nginx
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image: bitnami/nginx:1.16.0
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ports:
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- containerPort: 8080
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```
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=== "Openshift"
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## Activities
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| Task | Description | Link |
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| --------------------------------| ------------------ |:----------- |
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| *** Try It Yourself *** | | |
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| Rolling Updates Lab | Create a Rolling Update for your application | [Rolling Updates](../../labs/kubernetes/lab6/index.md) |
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| Task | Description | Link |
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| --------------------- | -------------------------------------------- | :----------------------------------------------------- |
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| **_Try It Yourself_** | | |
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| Rolling Updates Lab | Create a Rolling Update for your application | [Rolling Updates](../../labs/kubernetes/lab6/index.md) |

‎docs/openshift/deployments/updates/index.md‎

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=== "OpenShift"
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[Rollouts :fontawesome-solid-globe:](https://docs.openshift.com/container-platform/4.13/applications/deployments/what-deployments-are.html#delpoymentconfigs-specific-features_what-deployments-are){ .md-button target="_blank"}
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[Rollouts :fontawesome-solid-rotate-right:](https://docs.openshift.com/container-platform/4.13/applications/deployments/what-deployments-are.html#delpoymentconfigs-specific-features_what-deployments-are){ .md-button target="_blank"}
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[Rolling Back :fontawesome-solid-globe:](https://docs.openshift.com/container-platform/4.13/applications/deployments/managing-deployment-processes.html#deployments-rolling-back_deployment-operations){ .md-button target="_blank"}
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[Rolling Back :fontawesome-solid-rotate-left:](https://docs.openshift.com/container-platform/4.13/applications/deployments/managing-deployment-processes.html#deployments-rolling-back_deployment-operations){ .md-button target="_blank"}
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=== "Kubernetes"
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[Updating a Deployment :fontawesome-solid-globe:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#updating-a-deployment){ .md-button target="_blank"}
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[Rolling Back a Deployment :fontawesome-solid-globe:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#rolling-back-a-deployment){ .md-button target="_blank"}
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[Updating a Deployment :fontawesome-solid-rotate-right:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#updating-a-deployment){ .md-button target="_blank"}
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[Rolling Back a Deployment :fontawesome-solid-rotate-left:](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#rolling-back-a-deployment){ .md-button target="_blank"}
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## References
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app: nginx
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spec:
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containers:
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- name: nginx
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image: bitnami/nginx:1.16.0
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ports:
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- containerPort: 8080
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- name: nginx
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image: bitnami/nginx:1.16.0
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ports:
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- containerPort: 8080
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```
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=== "OpenShift"
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``` Bash title="Setting Namespace in Context"
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kubectl config set-context --current --namespace=dev
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```
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```

‎docs/openshift/pods/health-checks/index.md‎

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=== "OpenShift"
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[Logs Command :fontawesome-solid-file-lines:](https://docs.openshift.com/container-platform/4.13/cli_reference/openshift_cli/developer-cli-commands.html){:target="_blank"}
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[Logs Command :fontawesome-solid-file-lines:](https://docs.openshift.com/container-platform/4.13/cli_reference/openshift_cli/developer-cli-commands.html){ .md-button target="_blank"}
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[Cluster Logging :fontawesome-solid-file-lines:](https://docs.openshift.com/container-platform/4.13/logging/cluster-logging.html){:target="_blank"}
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[Cluster Logging :fontawesome-solid-file-lines:](https://docs.openshift.com/container-platform/4.13/logging/cluster-logging.html){ .md-button target="_blank"}
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[Logging Collector :fontawesome-solid-file-lines:](https://docs.openshift.com/container-platform/4.13/logging/config/cluster-logging-collector.html){:target="_blank"}
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[Logging Collector :fontawesome-solid-file-lines:](https://docs.openshift.com/container-platform/4.13/logging/config/cluster-logging-collector.html){ .md-button target="_blank"}
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=== "IBM Cloud Kubernetes Service"
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=== "Kubernetes"
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[Logging :fontawesome-solid-file-lines:](https://kubernetes.io/docs/concepts/cluster-administration/logging/){:target="_blank"}
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[Logging :fontawesome-solid-file-lines:](https://kubernetes.io/docs/concepts/cluster-administration/logging/){ .md-button target="_blank"}
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### References
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=== "OpenShift"
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[Monitoring Application Health :fontawesome-brands-watchman-monitoring:](https://docs.openshift.com/container-platform/4.13/applications/application-health.html){:target="_blank"}
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[Monitoring Application Health :fontawesome-brands-watchman-monitoring:](https://docs.openshift.com/container-platform/4.13/applications/application-health.html){ .md-button target="_blank"}
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=== "IBM Cloud Kubernetes Service"
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=== "Kubernetes"
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[Monitoring Resource Usage :fontawesome-brands-watchman-monitoring:](https://kubernetes.io/docs/tasks/debug-application-cluster/resource-usage-monitoring/){:target="_blank"}
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[Monitoring Resource Usage :fontawesome-brands-watchman-monitoring:](https://kubernetes.io/docs/tasks/debug-application-cluster/resource-usage-monitoring/){ .md-button target="_blank"}
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[Resource Metrics :fontawesome-brands-watchman-monitoring:](https://kubernetes.io/docs/tasks/debug-application-cluster/resource-metrics-pipeline/){:target="_blank"}
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[Resource Metrics :fontawesome-brands-watchman-monitoring:](https://kubernetes.io/docs/tasks/debug-application-cluster/resource-metrics-pipeline/){ .md-button target="_blank"}
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### References
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‎docs/openshift/pods/jobs/index.md‎

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# Jobs and CronJobs
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**Jobs**
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A Job creates one or more Pods and ensures that a specified number of them successfully terminate. As pods successfully complete, the Job tracks the successful completions. When a specified number of successful completions is reached, the task (ie, Job) is complete. Deleting a Job will clean up the Pods it created.
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A Job creates one or more Pods and ensures that a specified number of them successfully terminate. As pods successfully complete, the Job tracks the successful completions. When a specified number of successful completions is reached, the task (ie, Job) is complete. Deleting a Job will clean up the Pods it created.
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**CronJobs**
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One CronJob object is like one line of a crontab (cron table) file. It runs a job periodically on a given schedule, written in Cron format.
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All CronJob schedule: times are based on the timezone of the master where the job is initiated.
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## Resources
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**OpenShift**
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- [Jobs](https://docs.openshift.com/container-platform/4.3/nodes/jobs/nodes-nodes-jobs.html)
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- [CronJobs](https://docs.openshift.com/container-platform/4.3/nodes/jobs/nodes-nodes-jobs.html#nodes-nodes-jobs-creating-cron_nodes-nodes-jobs)
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=== "OpenShift"
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[Jobs :fontawesome-solid-briefcase:](https://docs.openshift.com/container-platform/4.3/nodes/jobs/nodes-nodes-jobs.html){ .md-button target="_blank"}
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[CronJobs :fontawesome-solid-briefcase:](https://docs.openshift.com/container-platform/4.3/nodes/jobs/nodes-nodes-jobs.html#nodes-nodes-jobs-creating-cron_nodes-nodes-jobs){ .md-button target="_blank"}
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=== "Kubernetes"
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**IKS**
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- [Jobs to Completion](https://kubernetes.io/docs/concepts/workloads/controllers/jobs-run-to-completion/)
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- [Cron Jobs](https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/)
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- [Automated Tasks with Cron](https://kubernetes.io/docs/tasks/job/automated-tasks-with-cron-jobs/)
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[Jobs to Completion :fontawesome-solid-briefcase:](https://kubernetes.io/docs/concepts/workloads/controllers/jobs-run-to-completion/){ .md-button target="_blank"}
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[Cron Jobs :fontawesome-solid-briefcase:](https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/){ .md-button target="_blank"}
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[Automated Tasks with Cron :fontawesome-solid-briefcase:](https://kubernetes.io/docs/tasks/job/automated-tasks-with-cron-jobs/){ .md-button target="_blank"}
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## References
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It computes π to 2000 places and prints it out
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_It computes π to 2000 places and prints it out_
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```yaml
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kind: Job
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template:
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image: perl
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command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"]
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- name: pi
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image: perl
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command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"]
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restartPolicy: Never
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backoffLimit: 4
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```
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Running in parallel
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_Running in parallel_
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```yaml
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args:
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- -c
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- date; echo Hello from the Kubernetes cluster
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- name: hello
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image: busybox
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args:
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- /bin/sh
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- -c
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restartPolicy: OnFailure
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```
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## Activities
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| Task | Description | Link |
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| --------------------------------| ------------------ |:----------- |
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| ***Try It Yourself*** | | |
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| Rolling Updates Lab | Create a Rolling Update for your application. | [Rolling Updates](../../../labs/kubernetes/lab6/index.md) |
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| Cron Jobs Lab | Using Tekton to test new versions of applications. | [Crons Jobs](../../../labs/kubernetes/lab7/index.md) |
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| Task | Description | Link |
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| --------------------- | -------------------------------------------------- | :-------------------------------------------------------- |
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| **_Try It Yourself_** | | |
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| Rolling Updates Lab | Create a Rolling Update for your application. | [Rolling Updates](../../../labs/kubernetes/lab6/index.md) |
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| Cron Jobs Lab | Using Tekton to test new versions of applications. | [Crons Jobs](../../../labs/kubernetes/lab7/index.md) |

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