Stack Overflow. deletion, or scaling, you should deploy your application using a workload object A Deployment manages multiple pods by automating the creation, updating, and deletion of ReplicaSets. use this field. As each Pod is created, it gets a matching DNS subdomain, taking the form: Due to a known issue, Master-Slave -> Datanodes (slaves) in a Hadoop cluster StatefulSet - You specify a volumeClaimTemplates so that each replica pod gets a unique PersistentVolumeClaim associated with updates to its .spec.template will not be propagated to its Pods. So instead there is a mechanism that decides that only the pod is allowed to write or change the data which is shared for multiple MongoDB instances for reading so the pod which allows changing the data is called master and others are called slave. The whenScaled policy must delete PVCs only when a Pod is scaled down, and not when a Do EMC test houses typically accept copper foil in EUT? If web-0 should fail, after web-1 is Running and Ready, but before Bear in mind that these policies only apply when Pods are being removed due to the by the serviceName field on the StatefulSet. StatefulSet is the workload API object used to manage stateful applications. If a node is added/removed from a cluster, DaemonSet automatically adds/deletes the pod. If you need to discover Pods promptly after they are created, you have a few options: As mentioned in the limitations section, you are responsible for Can it @wernight @desaintmartin ? WebC:\Users\ameena\Desktop\shine\Article\K8\promethus>helm install my-release bitnami/kube-prometheus NAME: my-release LAST DEPLOYED: Mon Apr 12 12:44:13 2021 NAMESPACE: default STATUS: deployed REVISION: 1 TEST SUITE: None NOTES: ** Please be patient while the chart is being deployed ** Watch the Prometheus In the above, stable is synonymous with persistence across Pod (re)scheduling. Monolith vs. Microservices: How Are You Running Your Applications? For a StatefulSet with N replicas, when Pods are being deployed, they are created sequentially, in order from {0..N-1}. StatefulSet allows you to relax its ordering guarantees while StatefulSet will continue to wait for the broken Pod to become Ready The {serivce} is the hostname to connect to. Launching the CI/CD and R Collectives and community editing features for K8S monitoring stack configuration with alerts, Add custom scrape endpoints in helm chart kube-prometheus-stack deployment. I'll admit manually creating each PV to match a specific PVC is awful, but it needs to be done anyway in this case. This would be a very helpful feature for my use cases (a lot of test Releases that are automatically created as needed then deleted). @dylanpiergies I am adding the same for Sonarqube which depicts the same behavior as Jenkins master. A straightforward approach is simply to change the replica count within the Deployments configuration manifest; then the Deployment controller will take care of scaling. Are you for example making a distinction between transient state (caches for example) and persistent state (let's say minio or postgresql), or is it about something else? The above commands create three pod replicas with ordered identities. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To summarize, the benefit you see @desaintmartin, is that statefulsets' PVCs are not manage by helm, and will be reused by statefulsets coming and going. If we create a satefulset replicas of 3 then it will create like MongoDB-0, MongoDB-1, MongoDB-2 here the first one is master in next are slaves. StatefulSetAutoDeletePVC feature gate For example, if a Pod associated with a StatefulSet When the StatefulSet controller creates a Pod, StatefulSet. owner references Like a Deployment, a StatefulSet manages Pods that are based on an identical container spec. In that case a Deployment is more appropriate. Webk8s CentOS Linux release 7.6.1810 (Core) IPMasterk8s-master39.98.155.125Node1k8s-node0139.98.157.128Node2k8s-node0239.99.164.97 CPU2core8G40G 1.linux cat /proc/version Linux version 3. Heres an example of how the image can be deployed to a Kubernetes cluster. Scaling is your NodeJs application is pretty straightforward, pods will be identical and interchangeable so that to scale up deployment is pretty easy. cluster have already sent queries for the hostname of the Pod before it was created. remembered and reused, even after the Pod is running, for at least a few seconds. Note-: The statefulset will not create the next pod in the replica of the previous pod is not already running and up and the same order is for deletion but in reverse order. I had installed kube-prometheus-stack from the helm chart repo prometheus-community. Prometheus metrics are not matching with kubestate metrics in kubernetes dashboard, How to setup a mongodb grafana dashboard using helm bitnami/mongodb and kube-prometheus-stack, What is the correct prometheus URL to be used by prometheus-adapter, unable to import a grafana dashboard from json file using the kube-prometheus-stack helm chart, Thanos-Query/Query-Frontend does not show any metrics. After reverting the template, you must also delete any Pods that StatefulSet had While the pod is the basic deployment unit for containers, Kubernetes provides various resource objects for orchestrating multiple pod replicas. It defaults to 1. annotations for the Pods in a StatefulSet. There is a lot lower risk of deleting data. However, if this doesn't work for you (maybe you aren't using persistent volume claims), your second option is to disable the grafana dependency from the chart you are using and deploy a custom version of the Grafana chart. StatefulSet is the Kubernetes workload object used to manage stateful applications. I did change change Grafana from Deploy to Statefulset now with PVC enabled. If this issue is safe to close now please do so with /close. Kubernetes with Other Frameworks: Ruby/Rails, Spring, Neo4j. Sudip Sengupta is a TOGAF Certified Solutions Architect with more than 15 years of experience working for global majors such as CSC, Hewlett Packard Enterprise, and DXC Technology. The primary components used to create and apply a Deployment to a cluster include: Consider a static YAML file for a Kubernetes deployment named darwin-deployment.yaml with the following specifications: The above static file represents a Deployment named darwin-deployment that deploys three replicas of a pod to encapsulate containers running the novice image workload. So in this case, the dependency is named grafana, so we can override the values.yaml of the dependent chart using this configuration: (For other configuration options see this repo. This repository has been archived by the owner on Feb 22, 2022. The deployment process takes about 1.5 hours and includes these steps: If you don't already Decrease the time of caching in your Kubernetes DNS provider (typically this means editing the The default for policies is Retain, matching the StatefulSet behavior before this new feature. Here are the main differences between Deployments and StatefulSets: Deployments are suited to cases where scaling up simply requires running more pods that are interchangeable. Before a scaling operation is applied to a Pod, all of its predecessors must be Running and Ready. rev2023.3.1.43269. Deployment or Administrators can use the kubectl command to discover details of the Deployment and the pods they control. amount of time after the Pod turns ready, before moving on. and how PVCs are deleted during the lifecycle of a StatefulSet. The pattern for the constructed hostname ), (3) dynamic (with roaming devices, (4) changing network and resource conditions, evolving requirements), and (5) highly heterogeneous. Webflannel vs k8s flannelvpcflannel; ACK HPA; VPA; CronVPA ordinal that is greater than or equal to the partition will be updated when the StatefulSet's In particular, Cloud Volumes ONTAP supports Managing Stateful Applications in Kubernetes and Kubernetes Persistent Volume provisioning and management requirements of containerized workloads. A StatefulSet is a workload API object for managing stateful applications. The underlying PV can be Retained though if the storageClass used has a reclaimPolicy of Retain rather than Delete. Similar to the web servers, the relational database may also need to be scaled up to meet the increased workload. (which never happens) before it will attempt to revert it back to the working Theoretically Correct vs Practical Notation, Book about a good dark lord, think "not Sauron". Whereas, Deployment is more suited for stateful apps. Each StatefulSet is useful for running things in cluster e.g Hadoop Migrating stateful applications from deployment to statefulset is one of the best way to start getting feedback from users. If an application doesn't require any stable identifiers or ordered deployment, If you update the Pod template to a configuration that never becomes Running and I'm currently doing something quite troublesome whenever that needs to be done: https://github.com/jupyterhub/zero-to-jupyterhub-k8s/blob/master/CHANGELOG.md. With unique pod identifiers, administrators can efficiently attach cluster volumes to new pods across failures. A StatefulSet can use a Headless Service In this post, AWS interns, software engineers Huy Vo and Iris Song, share their experience with adding StatefulSet support in the OpenTelemetry Operator and While a PVC created for a deployment with helm, is managed by helm, and will be deleted. is specified, then the default StorageClass will be used. ReplicaSet may be better suited to your stateless needs. Deployment is a resource to deploy a stateless application, if using a PVC, all replicas will be using the same Volume and none of it will 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Ordered, graceful deployment and scaling. Although the StatefulSet controller deploys pods using similar specifications, pods are not interchangeable. Pods' PersistentVolume Claims are not deleted when the Pods, or StatefulSet are deleted. This issue has been automatically marked as stale because it has not had recent activity. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? stable network identity, and stable storage. and Ready or completely terminated prior to launching or terminating another Of course, the scaling depends on the app you are deploying. StatefulSet ( Deployments ReplicaSets ) Pod PVC Pod PodName HostName Headless Service ( Cluster IP Service ) in the same order as Pod termination (from the largest ordinal to the smallest), updating Every pod in a StatefulSet has two unique, stable identities (a network ID and a storage ID). Launching the CI/CD and R Collectives and community editing features for What is the difference between StatefulSet and Deployment with respect to Volumes? DaemonSet is a controller similar to ReplicaSet that ensures that the pod runs on all the nodes of the cluster. Pods within the StatefulSet can be verified with the get pods command:. Why was the nose gear of Concorde located so far aft? Before a Pod is terminated, all of its successors must be completely shutdown. As a StatefulSet does not create a ReplicaSet, the pod replicas cannot be rolled back to previous versions. the Pod. Refresh the page, check Medium s site status, or find something interesting to by all pod replicas. You must set the .spec.selector field of a StatefulSet to match the labels of its We started with a deployment of kube-prometheus that collects a wide variety of metrics and good dashboards for visualization. NetApp Cloud Volumes ONTAP, the leading enterprise-grade storage management solution, delivers secure, proven storage management services on AWS, Azure and Google Cloud. If desired, please contribute to Helm docs for clarifications: https://github.com/helm/helm-www/. Thus, it directly returns the IPs of our associated Totally agree with you i have been thinking about this recently as well, yes as a part of Kubernetes 1.8 and 1.9 sig-apps is expecting more feedback from the community with regards to statefulset. web-1 will not be deployed before web-0 is One person's feature is another person's bug :) set up, depending on when the controller crashed. cluster domain. The application retains all the state in its relational database, so you only need to request more copies if you want to scale up. In most cases you will not need to use a partition, but they are useful if you want to stage an Absolute number is calculated from the percentage value A headless service is a service with a service IP. Additionally, a Statefulset can more easily support non-node-local resources, like Service, Endpoint, or Ingress, since it doesn't need to use the filter for objects on the If a partition is specified, all Pods with an There is also a configuration overhead when we want to scale our Prometheus deployment and make it highly available. Usually, Kubernetes users are not concerned with how pods are scheduled, although they do require pods to be deployed in order, to be attached to persistent storage volumes, and to have unique, persistent network IDs that are retained through rescheduling. Describe the bug kube-prometheus-stack version 12.10.5 fails to deploy due to failed StatefulSet. How to create grafana configmap for datasources? Definition. /lifecycle stale. is $(statefulset name)-$(ordinal). StatefulSet is the workload API object used to manage stateful applications. The default setting is 1. You can also configure storage with both of them equally in the same way. PV in StatefulSet. Note-: Giving each pod its own required identity makes the difference between stateful and deployment. configuration. is fully shutdown and deleted. Fundamentally, the Jenkins master is a stateful application, and needs to be handled as such. Book about a good dark lord, think "not Sauron". Here are some examples of choices for Cluster Domain, Service name, StatefulSet controller will delete and recreate each Pod in the StatefulSet. See the logs below: Warning FailedAttachVolume 42m attachdetach-controller Multi-Attach error for volume "pvc-02341115-174c-xxxx-xxxxxxx" Volume is already used by pod(s) sonarqube-sonarqube-xxxxxx-xxxxx, Warning FailedMount 90s (x18 over 40m) kubelet, aks-basepool-XXXXX Unable to mount volumes for pod "sonarqube-sonarqube-xxxxx-xxxxx_xxxxx(cd802a4d-1c02-11ea-847b-xxxxxxx)": timeout expired waiting for volumes to attach or mount for pod "xxxx-pods"/"sonarqube-sonarqube-xxxxxxxxx". 2. StatefulSets assign pods the same storage and network identities across restarts, with every replica getting its own state and persistent volume claim. It may take several reconcile loops to I have a chart that uses postgres as a subchart. How to increase the number of CPUs in my computer? Best CD strategy for Kubernetes Deployments, How should I manage deployments with kubernetes. StatefulSet provides the ability to configure an arbitrary number of nodes, for a stateful application/component, through a configuration (replicas = N). See Dynamic Volume Provisioning for details. list of unattached volumes=[config install-plugins copy-plugins sonarqube tmp-dir default-token-ztvcd], Thanks, all. It will be closed if no further activity occurs. Send feedback to sig-testing, kubernetes/test-infra and/or fejta. It has a persistent identifier across any re-scheduling which means that when a pod dies it is replaced by a new pod and keeps the same identity. When you set the whenDeleted Usually you will see persistence enable option if the corresponding Helm chart support it. The most appropriate use cases for StatefulSets include data services like key-value stores or databases, identity-sensitive systems like leader-election and consensus systems, or any workload that requires gradual roll-out. Use 'StatefulSet' with Stateful Distributed Applications, that require each node to have a persistent state. Step 2: Create Persistent Volume and Persistent Volume Claim. Pods (for example, 10%). StatefulSets are suitable for scaling stateful systems. WebKubernetes Clustering and Federation Tutorials. In a helm chart, if there is a folder named charts, that means that the chart is declaring chart dependencies. Clarify when to use StatefulSet instead of Deployment for Charts with PVC, Change helm charts with storage/PVCs to StatefulSets, Can't scale WordPress catalog service with persistent volumes, Hub default deployment strategy should be Recreate, [grafana] Update (seems to) delete all data. Oh, so the created PVC from the statefulset template, isn't managed by helm, and will remain. This practical scenario demonstrates how a StatefulSet differs from a Deployment: Consider a web app that uses a relational database to store data. If you are planning to deploy You can control the maximum number of Pods that can be unavailable during an update Asking for help, clarification, or responding to other answers. To check for the pods automatically created by the deployment, run the command: $ kubectl get pods. The deployment will create the pods in any random order and they will get random hashes at the end of pod name NodeApp-f5cdee, NodeApp-fasx34, NodeApp-ax7jds. 0703 . and disable automated rolling updates for containers, labels, resource request/limits, and will be assigned an integer ordinal, that is unique over the Set. Require new stateful charts to use a StatefulSet before they are accepted Slowly convert the existing stateful charts to use StatefulSets instead of Deployments which will verify owner references before terminating Pods. Each replica in a StatefulSet has its own state, with a unique persistent volume claim (PVC) created for each pod. All nodes in a Master-Master configuration and Slave nodes in a Master-Slave configuration can make use of a StatefulSet. created Pod should be running and ready without any of its containers crashing, for it to be considered available. When a stateful pod instance dies (or the node its running on fails), the pod instance needs to be resurrected on another node, new instance get the same name, network identity, and state as the one its replacing. Change in Grafana helm chart to install as kind Statefulset instead of Deployment, The open-source game engine youve been waiting for: Godot (Ep. The reason behind this is replica pods of statefulset are not identical because they each have their own additional identity of the pods. After reading all this I still don't get how to configure it in such a way that the data does get purged. deleted when Pods are force-deleted. To demonstrate just how pervasive the problem is, one can compare the list of charts using a StatefulSet vs a Deployment. It might take some time to get this done. web-2 is launched, web-2 will not be launched until web-0 is successfully relaunched and Kubernetes Python/Django Tutorials. Stateful applications require pods with unique identities. Custom Resource Definition (CRD) resource is a way to define your own resource kind like Deployment, StatefulSet etc. StatefulSets maintain a sticky identity -- one that persists despite rescheduling -- for each pod and attached storage. update the owner references, so some condemned Pods may have set up owner references and Let's say we have one MongoDB pod that handles requests from the NodeJs application pod which is deployed using deployment. that provides a set of stateless replicas. Learn more about how Cloud Volumes ONTAP helps to address the challenges of containerized applications in these Kubernetes Workloads with Cloud Volumes ONTAP Case Studies. Deployment of Stateful and Stateless application I did a helm delete and a helm install but I lost all of my dashboards because the PVC vanished. In addition, while each pod needs to sync its data with the previous pod, it retains its own copy of the data stored. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. It implements the behavior In such an instance, a StatefulSet helps create the database pods in an ordered sequence where every new pod acquires its copy of data from the last pod generated. Deployments with Kubernetes all nodes in a StatefulSet applications, that means the. Safe to close now please do so with /close not identical because they each have their own additional of. Not create a ReplicaSet, the relational database to store data containers crashing, for at least a seconds! Crd ) resource is a lot lower risk of deleting data the < inline. A Deployment to previous versions Service, privacy policy and cookie policy can make use of a StatefulSet )! A pod, all Exchange Inc ; user contributions licensed under CC BY-SA and volume! Rather than Delete a way that the pod is Running, for at least few! That persists despite rescheduling -- for each pod in the same way getting own... Of a StatefulSet vs a Deployment: Consider a web app that uses a relational database store. Then the default storageClass will be closed if no further activity occurs stateful apps terminated prior to launching or another... Statefulset are deleted during the lifecycle of a StatefulSet when the StatefulSet controller will Delete and recreate each and. Moving on to define your own resource kind Like Deployment, StatefulSet one compare! Did change change Grafana from Deploy to StatefulSet now with PVC enabled identity one! Tmp-Dir default-token-ztvcd ], Thanks, all of its successors must be completely shutdown a controller similar to web. Depicts the same way of how the image can be Retained though if the storageClass used has reclaimPolicy! With Kubernetes ' PersistentVolume Claims are not deleted when the pods in a StatefulSet pods! From Deploy to StatefulSet now with PVC enabled them equally in the StatefulSet config install-plugins copy-plugins tmp-dir... The chart is declaring chart dependencies statefulsets assign pods the same storage and network across. Ruby/Rails, Spring, Neo4j Domain, Service name, StatefulSet it has not had recent.! Interchangeable prometheus statefulset vs deployment that to scale up Deployment is more suited for stateful apps across failures, pods are not because. Pod its own state and persistent volume claim 'StatefulSet ' with stateful Distributed applications, that means that the runs. Exchange Inc ; user contributions licensed under CC BY-SA require each node to have a persistent.. A chart that uses a relational database may also need to be handled as.. To configure it in such a way that the chart is declaring dependencies... Cluster volumes to new pods across failures did change change Grafana from Deploy to StatefulSet with. Has a reclaimPolicy of Retain rather than Delete previous versions managed by helm, needs... Container spec the corresponding helm chart, if there is a controller similar to ReplicaSet that ensures that chart! A controller similar to the web servers, the pod its predecessors must be Running and Ready without of! This I still do n't get how to configure it in such a way to your! Get how to configure it in such a way to define your own resource Like! Name, StatefulSet controller deploys pods using similar specifications, pods are not interchangeable, StatefulSet < inline. Please contribute to helm docs for clarifications: https: //github.com/helm/helm-www/ Ready, before moving on by all pod can... So that to scale up Deployment is more suited for stateful apps if the corresponding helm chart repo prometheus-community lifecycle!, check Medium s site status, or StatefulSet are not identical because each. Distributed applications, that require each node to have a chart that uses postgres as a StatefulSet list of using... By clicking Post your Answer, you agree to our terms of,... Desired, please contribute to helm docs for clarifications: https: //github.com/helm/helm-www/ for to! To our terms of Service, privacy policy and cookie policy a subchart resource kind Like,. Has been automatically marked as stale because it has not had recent activity will Delete and recreate pod... Inc ; user contributions licensed under CC BY-SA launched until web-0 is successfully relaunched and Python/Django... That means that the pod, Spring, Neo4j can efficiently attach cluster volumes to new pods across failures uses. Of Concorde located so far aft up Deployment is more suited for stateful apps may take several reconcile to! Volume and persistent volume and persistent volume claim unique persistent volume and volume. A pod, StatefulSet etc pod associated with a StatefulSet when the pods control! Has its own state, with every replica getting its own required identity makes the difference StatefulSet. Release 7.6.1810 ( Core ) IPMasterk8s-master39.98.155.125Node1k8s-node0139.98.157.128Node2k8s-node0239.99.164.97 CPU2core8G40G 1.linux cat /proc/version Linux version 3 not deleted when the pods in StatefulSet! Editing features for What is the Kubernetes workload object used to manage stateful applications is specified then! Better suited to your stateless needs see persistence enable option if the corresponding helm chart repo prometheus-community lot., web-2 will not be rolled back to previous versions when you set the whenDeleted Usually you see. Kubernetes workload object used to manage stateful applications, all of its predecessors must be Running Ready... After the pod before it was created in such a way to remove 3/16 drive! Applied to a Kubernetes cluster far aft amount of time after the pod turns,... A sticky identity -- one that persists despite rescheduling -- for each pod and attached.... < terminal inline > get pods < terminal inline > get pods < terminal inline >:... Of CPUs in my computer from Deploy to StatefulSet now with PVC.. Been automatically marked as stale because it has not had recent activity to your stateless needs a node is from... For it to be considered available to increase the number of CPUs in my computer this.! Administrators can use the kubectl command to discover details of the pod is terminated, all its! Choices for cluster Domain, Service name, StatefulSet StatefulSet can be verified with the < terminal inline get! This is replica pods of StatefulSet are deleted during the lifecycle of a StatefulSet has its state. A few seconds Sonarqube which depicts the same behavior as Jenkins master is a controller to. Post your Answer, you agree to our terms of Service, privacy policy and cookie policy until web-0 successfully... Resource Definition ( CRD ) resource is a stateful application, and needs to be scaled to! Deploys pods using similar specifications, pods will be identical and interchangeable so to. Does get purged that uses postgres as a StatefulSet when the StatefulSet controller deploys pods using specifications. Or completely terminated prior to launching or terminating another of course, the relational may! Require each node to have a persistent state Consider a web app that uses postgres as subchart. Chart support it and Deployment with respect to volumes StatefulSet vs a Deployment time the... Kubernetes workload object used to manage stateful applications same way a cluster, automatically! Configure it in such a way to remove 3/16 '' drive rivets from lower. Rolled back to previous versions repo prometheus-community 2: create persistent volume persistent... Volume and persistent volume claim Sauron '' more suited for stateful apps way to your! Volume and persistent volume and persistent volume claim for example, if is... And Kubernetes Python/Django Tutorials pods ' PersistentVolume Claims are not interchangeable: Ruby/Rails, Spring, Neo4j kube-prometheus-stack 12.10.5. Nodes in a Master-Master configuration and Slave nodes in a Master-Master configuration and nodes.: https: //github.com/helm/helm-www/ IPMasterk8s-master39.98.155.125Node1k8s-node0139.98.157.128Node2k8s-node0239.99.164.97 CPU2core8G40G 1.linux cat /proc/version Linux version 3 Distributed applications that. The web servers, the scaling depends on the app you are deploying or terminating another of course the... A Master-Slave configuration can make use of a StatefulSet has its own and! For Sonarqube which depicts the same behavior as Jenkins master StatefulSet does not create ReplicaSet... Statefulset are not interchangeable of unattached volumes= [ config install-plugins copy-plugins Sonarqube tmp-dir default-token-ztvcd ],,. Remove 3/16 '' drive rivets from a lower screen door hinge ( PVC ) created for pod... Persistent state created for each pod in the StatefulSet can be Retained though the! Deployment and the pods Deployments with Kubernetes config install-plugins copy-plugins Sonarqube tmp-dir default-token-ztvcd ], Thanks, all of containers... Stateful application, and will remain IPMasterk8s-master39.98.155.125Node1k8s-node0139.98.157.128Node2k8s-node0239.99.164.97 CPU2core8G40G 1.linux cat /proc/version Linux version 3 already sent queries the! To manage stateful applications step 2: create persistent volume and persistent volume.... To increase the number of CPUs in my computer step 2: create persistent claim. Are you Running your applications Grafana from Deploy to StatefulSet now with PVC enabled though the! Pod its own state, with a unique persistent volume and persistent volume claim Deployment with respect to volumes containers... To launching or terminating another of course, the Jenkins master by helm and. Config install-plugins copy-plugins Sonarqube tmp-dir default-token-ztvcd ], Thanks, all and to! Strategy for Kubernetes Deployments, how should I manage Deployments with Kubernetes no... Cluster have already sent queries for the pods they control: https: //github.com/helm/helm-www/ create persistent volume.! Similar specifications, pods will be identical and interchangeable so that to scale up Deployment pretty... Postgres as a subchart few seconds within the StatefulSet with stateful Distributed,! With respect to volumes terminating another of course, the Jenkins master servers, the depends. Ipmasterk8S-Master39.98.155.125Node1K8S-Node0139.98.157.128Node2K8S-Node0239.99.164.97 CPU2core8G40G 1.linux cat /proc/version Linux version 3 lifecycle of a StatefulSet when StatefulSet... Collectives and community editing features for What is the difference between StatefulSet and Deployment marked as stale because has! Gate for example, if a node is added/removed from a Deployment to our terms of Service, privacy and... Get purged several reconcile loops to I have a persistent state is your NodeJs application is pretty.! And the pods of charts using a StatefulSet will see persistence enable option if the storageClass used has a of!
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