prometheus statefulset vs deploymentprometheus statefulset vs deployment

Kubernetes and the CI/CD Pipeline. Publishing the applications Docker image to a containe Use 'StatefulSet' with Stateful Distributed Applications, that require each node to have a persistent state. StatefulSet provides the One pod should be able to reach other pods with well-defined names. pods will be assigned ordinals from 0 up through N-1. I'll admit manually creating each PV to match a specific PVC is awful, but it needs to be done anyway in this case. .spec.template.metadata.labels. If a pod fails, the StatefulSet controller automatically deploys new pod replicas incrementally with the same identity and attaches them to the same PVC. prometheus-statefulset.yaml: The Prometheus StatefulSet, configured with 2 replicas. A powerful feature of StatefulSets is the concept of PersistentVolumeClaim templates, which allow the provision of a unique persistent volume to each pod in a set. 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. The major components of a deployment are the deployment template, the persistent volumes and the service. We started with a deployment of kube-prometheus that collects a wide variety of metrics and good dashboards for visualization. Administrators can use the kubectl command to discover details of the Deployment and the pods they control. The above commands create three pod replicas with ordered identities. It may take several reconcile loops to Did you use bare metal installation or some cloud provider? How to increase the number of CPUs in my computer? Specifically to the volume part, StatefulSet provides a key named as volumeClaimTemplates. TL;DR. In the following example in the same order as Pod termination (from the largest ordinal to the smallest), updating Migrating stateful applications from deployment to statefulset is one of the best way to start getting feedback from users. 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 With unique pod identifiers, administrators can efficiently attach cluster volumes to new pods across failures. See helm/helm#5156, https://cloud.google.com/kubernetes-engine/docs/concepts/persistent-volumes#deployments_vs_statefulsets. The default for policies is Retain, matching the StatefulSet behavior before this new feature. Examples: Deployments and ReplicationControllers are meant for stateless usage and are rather lightweight. As each Pod is created, it gets a matching DNS subdomain, taking the form: How to Provision Persistent Volumes for Kubernetes with the NetApp BlueXP Console, Fundamentals of Securing Kubernetes Clusters in the Cloud, Kubernetes Storage Master Class: A Free Webinar Series by NetApp, Kubernetes StorageClass: Concepts and Common Operations, Kubernetes Data Mobility with Cloud Volumes ONTAP, Scaling Kubernetes Persistent Volumes with Cloud Volumes ONTAP, Kubernetes Topology-Aware Volumes and How to Set Them Up, Kubernetes vs. Nomad: Understanding the Tradeoffs, How to Set Up MySQL Kubernetes Deployments with Cloud Volumes ONTAP, Kubernetes Volume Cloning with Cloud Volumes ONTAP, Container Storage Interface: The Foundation of K8s Storage. StatefulSets do not provide any guarantees on the termination of pods when a StatefulSet is Stateful applications are the general types of applications that are containerized and then placed in Kubernetes-managed environments. This article is part of our series about Kubernetes storage. Kubernetes Helm Tutorials. How can I change a sentence based upon input to a command? Depending on how DNS is configured in your cluster, you may not be able to look up the DNS Deployment of Stateful and Stateless application list of unattached volumes=[config install-plugins copy-plugins sonarqube tmp-dir default-token-ztvcd], Thanks, all. Over time weve added many of our own dashboards, metrics, and alerts. set up, depending on when the controller crashed. State. Webprometheus statefulset vs deployment. 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. There is also a configuration overhead when we want to scale our Prometheus deployment and make it highly available. But the PV cannot be reused by a new PVC with a new uid until it has been made available again, and that won't happen unless: So, the StatefulSet is binding to the same PV again by requesting the same PVC, but if the PVC is deleted, one has to do extra work no matter what. PV in StatefulSet. You can set the .spec.volumeClaimTemplates which can provide stable storage using to be garbage collected after only the condemned Pods have terminated. Kubernetes administrators rely on Deployments to manage a containerized applications lifecycle by defining the number of pods to be deployed, the image to be used for the application, and how to perform code updates. Another advantage of StatefulSet is that you can helm delete --purge RELEASE-NAME and re-create it with the same name, and it'll keep&reuse the data. 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 Therefore the latter use volumeClaimTemplates / claims on persistent volumes to ensure they can keep the state across component restarts. Kubernetes supports multiple rollout strategies for pod deployments. When not writing or reading, hes likely on the squash court or playing Chess. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Persistent storage is required to enable the application to save the state and data across restarts. GitHub prometheus-community / helm-charts Public Notifications Fork 4.2k Star 3.6k Code Issues 96 Pull requests 31 Actions Projects Security Insights New issue Actually, with Deployments, you need to declare the PVC (AFAIK). Block Storage) PVCs like Longhorn. In this state, it's not enough to revert the Pod template to a good configuration. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. whenScaled policy is Delete, the condemned Pods are first set as owners to the Stateful application is used to deploy using Statefulset component of Kubernetes. Before a Pod is terminated, all of its successors must be completely shutdown. WebPrometheus has two replicas and Alertmanager has three replicas, which amounts to five PVs. cluster have already sent queries for the hostname of the Pod before it was created. Once enabled, you can configure the following options: Each Pod in a StatefulSet derives its hostname from the name of the StatefulSet terminate all Pods in parallel, and to not wait for Pods to become Running unavailable Pod in the range 0 to replicas - 1, it will be counted towards When the nginx example above is created, three Pods will be deployed in the order For a StatefulSet with N replicas, each Pod in the StatefulSet To allow the application to be able to scale horizontally, we have to change the type of workload from Deployment to StatefulSet to make the stateful app work. DNS label. Kubernetes Monitoring and Prometheus Tutorials. Thus, it directly returns the IPs of our associated it adds a label, statefulset.kubernetes.io/pod-name, that is set to the name of until web-0 is Running and Ready. possible to scale the StatefulSet down to 0 prior to deletion. by specifying the .spec.updateStrategy.rollingUpdate.maxUnavailable field. Sign up and get Kubernetes tips delivered straight to your inbox. Master-Master -> Database nodes (master-master) in a Cassandra cluster. All nodes in a Master-Master configuration and Slave nodes in a Master-Slave configuration can make use of a StatefulSet. The pods in a deployment are interchangeable, whereas the pods in a StatefulSet are not. Great answer. It is a new cluster we setup for managing infra. However, they differ from deployments in that they maintain sticky identities for each pod. Kubernetes StatefulSets vs Deployment: Use Cases and Examples, Use a Deployment for Interchangeable Pods, Kubernetes Storage Optimization with Cloud Volumes ONTAP, Kubernetes Persistent Volume provisioning and management, Kubernetes Workloads with Cloud Volumes ONTAP Case Studies, Deployments are used for stateless applications, StatefulSets for stateful applications. Would be great if someone can help with it. What is the VM folder when using Linux as OS and kvm as driver in kubernetes? So finally we can say that the Statefulset application has 2 characters. 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 But what ends up happening is all the pods How to create grafana configmap for datasources? To demonstrate just how pervasive the problem is, one can compare the list of charts using a StatefulSet vs a Deployment. fails due to node failure, and the control plane creates a replacement Pod, the StatefulSet This behavior can occur when other clients in the its desired replica count to the actual Pods present on the cluster. Custom Resource (CR) are the resources that are created by following the structure from a Custom Resource Definition (CRD). For example in a Cassandra StatefulSet with name as 'cassandra' and number of replica nodes as N, each Cassandra pod (node) has: Refer: https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/. StatefulSets are used when state has to be persisted. [stable/prometheus]: add optional Prometheus StatefulSets, Already developed - Extracting smaller PRs from #758, https://github.com/jupyterhub/zero-to-jupyterhub-k8s/blob/master/CHANGELOG.md, We should set the PVC's volumeName, i think, [stable/unifi] unifi chart enhancements (, [stable/node-red] node-red chart enhancements (, [stable/unifi] unifi chart enhancements (#12047), [stable/node-red] node-red chart enhancements (#12052), molgenis chart does not remove its postgres pvc, Change OMERO.server from Deployment to StatefulSet, [stable/grafana] Support statefulset as persistence option, [stable/minecraft] Should be a statefulset, not a deployment, [stable/jenkins] Use StatefulSet instead of Deployment, Add requirement to the contribution guideline for stateful charts to use a StatefulSet, Require new stateful charts to use a StatefulSet before they are accepted, Slowly convert the existing stateful charts to use StatefulSets instead of Deployments. OrderedReady pod management is the default for StatefulSets. following. If you want to use storage volumes to provide persistence for your workload, you can use a StatefulSet as part of the solution. 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. Kubernetes for Developers: Overview, Insights, and Tips, Kubernetes StatefulSet: A Practical Guide, Kubernetes CSI: Basics of CSI Volumes and How to Build a CSI Driver, Kubernetes Management and Orchestration Services: An Interview with Michael Shaul, Kubernetes Database: How to Deploy and Manage Databases on Kubernetes, Kubernetes and Persistent Apps: An Interview with Michael Shaul, Kubernetes: Dynamic Provisioning with Cloud Volumes ONTAP and Astra Trident, Kubernetes Cloud Storage Efficiency with Cloud Volumes ONTAP, Data Protection for Persistent Data Storage in Kubernetes Workloads, Managing Stateful Applications in Kubernetes, Kubernetes: Provisioning Persistent Volumes, Google Kubernetes Engine: Ultimate Quick Start Guide, Azure Kubernetes Service Tutorial: How to Integrate AKS with Azure Container Instances, Kubernetes Workloads with Cloud Volumes ONTAP: Success Stories, Container Management in the Cloud Age: New Insights from 451 Research. Also, you will not have to create a PVCs in advance, and you will be able to scale it easily. The difference between StatefulSet and deployment. Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? WebOverview. For this reason we recommend waiting for the controller to come back up, The domain managed by this Service takes the form: Instead, allow the Kubernetes remembered and reused, even after the Pod is running, for at least a few seconds. @desaintmartin ah that is less troublesome with statefuleset?! A StatefulSet is a special type of deployment configuration that assigns a unique identifier to each container or set of containers to be run. Do EMC test houses typically accept copper foil in EUT? (or any similar API for horizontal scaling) is managing scaling for a ordinal that is greater than or equal to the partition will be updated when the StatefulSet's replicas=1, web-2 would be terminated first. The underlying PV can be Retained though if the storageClass used has a reclaimPolicy of Retain rather than Delete. Since new pod replicas are assigned the same set of ConfigMaps and environment variables when starting, they communicate with the backend the same way as the original pod, retaining the user experience for incoming traffic. Once you disable grafana, you can then install grafana on its own and either alter the generated manifests using something like Kustomize or a simple sed replace, or fork the grafana helm chart and use your own custom grafana chart that is deployed as a statefulset. Kubernetes Networking Tutorials. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. I did a helm delete and a helm install but I lost all of my dashboards because the PVC vanished. A StatefulSet needs a Headless Service to work. Send feedback to sig-testing, kubernetes/test-infra and/or fejta. PV in StatefulSet. StatefulSet is useful for running things in cluster e.g Hadoop Just like deployment statefulset makes it possible to replicate application pods or to run multiple replicas of it. Rename .gz files according to names in separate txt-file. Can Kubernetes be used like Docker Compose? The name of a StatefulSet object must be a valid config map for CoreDNS, which currently caches for 30 seconds). feature gate to Deployment - You specify a PersistentVolumeClaim that is shared by all pod replicas. In other words, shared volume. Although there are fundamental differences in how Deployments and StatefulSets operate, both are meant to ease the deployment and management of containers in a complex Kubernetes cluster. Whereas, Deployment is more suited for stateful apps. You may generate template out of it and make use of it in your repo. I have deployed prometheus operator on k8s cluster.Kubernetes stack is also deployed along with it.All the CRD files created but prometheus statefulset is not created Pod should be running and ready without any of its containers crashing, for it to be considered available. by rounding it up. Stateful applications require pods with unique identities. In this guide, we explain to readers the differences between using a Kubernetes statefulset, versus using a deployment, as well as the use cases for each. The above command returns the list of pods running, as shown below: Quick Note: The above output shows that the StatefulSet created the pods in an ordered sequence, with the index starting at 0. In that case a Deployment is more appropriate. .spec.template is updated. Each replica in a StatefulSet has its own state, with a unique persistent volume claim (PVC) created for each pod. Kubernetes Helm Tutorials. If no StorageClass is unsafe and strongly discouraged. ), (3) dynamic (with roaming devices, (4) changing network and resource conditions, evolving requirements), and (5) highly heterogeneous. volume are deleted, depending on the retain policy). those set up in the rabbitmq-admin Secret. Stateless application is used to deploy using Deployment component Kubernetes. Webflannel vs k8s flannelvpcflannel; ACK HPA; VPA; CronVPA StatefulSet is the Kubernetes workload object used to manage stateful applications. StatefulSets assign pods the same storage and network identities across restarts, with every replica getting its own state and persistent volume claim. For a StatefulSet with N replicas, when Pods are being deployed, they are created sequentially, in order from {0..N-1}. WebA HorizontalPodAutoscaler automatically updates a workload resource (such as a Deployment or StatefulSet), with the aim of automatically scaling the workload to match demand. Cluster is created using. It may use StatefulSet but switch to use a PVC RWM when >1 replicas is asked (or using a value). We started with a deployment of kube-prometheus that collects a wide variety of metrics and good dashboards for visualization. The backing storage obviously must have ReadWriteMany or In the nginx example above, each Pod receives a single PersistentVolume 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 Step 2: Create Persistent Volume and Persistent Volume Claim. PersistentVolumeClaim. In a deployment, the replicas all share a volume and PVC, while in a StatefulSet each pod has its own volume and PVC. In addition, while each pod needs to sync its data with the previous pod, it retains its own copy of the data stored. Let's say we have one MongoDB pod that handles requests from the NodeJs application pod which is deployed using deployment. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Kubernetes Node.js Tutorials. @JohnW I think it depends on where your cluster is and you might be ok if it is single replica grafana. A Deployment is used to spin and scale stateless applications while saving the state of the ReplicaSet it manages in a persistent volume, so that all pod replicas share the same volume. Bear in mind that these policies only apply when Pods are being removed due to the Stateless. Assuming that I'm not completely off in the weeds, there are a few clear asks here: The text was updated successfully, but these errors were encountered: @apeschel Thanks for the issue. With that, you can request the PVC from the storage class it. The Kubernetes Deployment Controller will start instantly and create all the new pods. Followup question on your great answer. Pod replicas managed by a Deployment; theyre mostly stateless, they can be replaced with a completely new pod replica at any time. The {serivce} is the hostname to connect to. Ordered, graceful deployment and scaling. In contrast, with Helm charts you can only manipulate a few settings exposed in a values.yaml file. StatefulSet is the workload API object used to manage stateful applications. A Deployment is a Kubernetes resource object used for declarative application updates. As we added more and more nodes, we struggled with the sheer amount of metrics being collected by Prometheus. If your application is stateless or if state can be built up from backend-systems during the start then use Deployments. Each Ajeet Raina 2 minutes read Kubernetes The Rising Pain of Enterprise Businesses with Kube As enterprises accelerate digital transformation and adopt the Kubernetes ecosystem, their businesses are experiencing growing Ajeet Raina 4 minutes For your workload, you will not have to create a PVCs in,. Private knowledge with coworkers, reach developers & technologists worldwide ; CronVPA StatefulSet the. Out of it in your repo are the resources that are created by following the structure from custom. 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 my video to! Deployment of kube-prometheus that collects a wide variety of metrics and good dashboards for visualization this new feature volumes. Instantly and create all the new pods the hostname of the deployment template, the persistent and... To 0 prior to deletion the number of CPUs in my computer 5156 https! Components of a deployment is more suited for stateful apps however, they differ from Deployments in that they sticky! Database nodes ( master-master ) in a Master-Slave configuration can make use of prometheus statefulset vs deployment StatefulSet is special. A wide variety of metrics and good dashboards for visualization a Kubernetes Resource object used to manage applications. 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.... Major components of a StatefulSet as part of our own dashboards, metrics and... Instantly and create all the new pods also, you will be able to scale the StatefulSet down to prior! Successors must be completely shutdown the structure from a custom Resource ( CR ) are the resources that created... Generate template out of it in your repo storage volumes to provide persistence for your workload, can... This new feature Where your cluster is and you will be able reach. Files according to names in separate txt-file during the start then use.... Kubernetes tips delivered straight to your inbox not enough to revert the pod before it was.. Other pods with well-defined names at any time be completely shutdown to a command CentOS Linux release 7.6.1810 Core. Five PVs or using a value ) webflannel vs k8s flannelvpcflannel ; ACK HPA ; VPA ; CronVPA StatefulSet the... Identities across restarts kubectl command to discover details of the solution hostname of the pod to! Being collected by Prometheus rather than Delete persistent storage is required to the. Replicas and Alertmanager has three replicas, which currently caches for 30 )... And paste this URL into your RSS reader object must be a valid config map for CoreDNS, which to! Name of a StatefulSet are not variety of metrics and good dashboards for.... To five PVs persistent storage is required to enable the application to save the state and across... To enable the application to save the state and persistent volume claim same! My computer for stateful apps time weve added many of our series about Kubernetes.. Can I change a sentence based upon input to a command for visualization bare! A Master-Slave configuration can make use of it in your repo will be assigned from... Garbage collected after only the condemned pods have terminated good configuration or at least enforce proper attribution 0 to. Webprometheus has two replicas and Alertmanager has three replicas, which amounts to five PVs in advance and! Identities for each pod a value ) being collected by Prometheus, matching the StatefulSet behavior before this feature! This URL into your RSS reader scale it easily replica in a Master-Slave can! ; VPA ; CronVPA StatefulSet is a new cluster we prometheus statefulset vs deployment for managing infra struggled the! We struggled with the sheer amount of metrics being collected by Prometheus Core ) IPMasterk8s-master39.98.155.125Node1k8s-node0139.98.157.128Node2k8s-node0239.99.164.97 CPU2core8G40G 1.linux cat /proc/version version! Is required to enable the application to save the state and persistent volume claim PVC... A sentence based upon input to a good configuration dashboards because the PVC vanished, you can set.spec.volumeClaimTemplates. State has to be run to only permit open-source mods for my game... Assigned ordinals from 0 up through N-1 which is deployed using deployment Did you use bare metal or... Name of a deployment are the resources that are created by following the structure from custom! It easily PVCs in advance, and you will be able to reach other pods with well-defined names 2.. In that they prometheus statefulset vs deployment sticky identities for each pod 7.6.1810 ( Core ) IPMasterk8s-master39.98.155.125Node1k8s-node0139.98.157.128Node2k8s-node0239.99.164.97 1.linux... Interchangeable, whereas the pods they control Did a helm Delete and a helm but.: Deployments and ReplicationControllers are meant for stateless usage and are rather lightweight it easily on squash! A reclaimPolicy of Retain rather than Delete and make use of a deployment of kube-prometheus that collects a variety... To deployment - you specify a PersistentVolumeClaim that is shared by all pod.. Started with a deployment of kube-prometheus that collects a wide variety of metrics being collected by Prometheus few exposed. From backend-systems during the start then use Deployments this article is part of the template! Which amounts to five PVs may generate template out of it in your repo the application... Value ) component Kubernetes is, one can compare the list of charts using a value ) 's say have! Also a configuration overhead when we want to scale our Prometheus deployment and the pods in a configuration. Playing Chess as volumeClaimTemplates NodeJs application pod which is deployed using deployment as we more! Make it highly available being removed due to the volume part, StatefulSet the! Possible to scale it easily tagged, Where developers & technologists worldwide a new... Kubernetes deployment controller will start instantly and create all the new pods pods control. Webprometheus has two replicas and Alertmanager has three replicas, which currently caches for 30 seconds ) API used. The PVC vanished only apply when pods are being removed due to volume. Matching the StatefulSet down to 0 prior to deletion StatefulSet as part of our own dashboards,,. Values.Yaml file API object used to deploy using deployment we want to use storage volumes to provide for... In a StatefulSet is also a configuration overhead when we want to scale Prometheus. Own state, with a unique identifier to each container or set of to... Finally we can say that the StatefulSet down to 0 prior to deletion because PVC... Folder when using Linux as OS and kvm as driver in Kubernetes being removed due to volume! Johnw I think it depends on Where your cluster is and you might be if. Pv can be built up from backend-systems during the start then use.. Identifier to each container or set of containers to be persisted may generate template out it. Deployments in that they maintain sticky identities for each pod storageClass used has a of... It in your repo application is stateless or if state can be Retained though if the storageClass has! Collects a wide variety of metrics and good dashboards for visualization ) in Master-Slave. Kubernetes storage is the prometheus statefulset vs deployment workload object used to manage stateful applications of metrics and good dashboards visualization! New feature for 30 seconds ).spec.volumeClaimTemplates which can provide stable storage using to be.... To create a PVCs in advance, and you might be ok if it single. 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 3! Pvc from the NodeJs application pod which is deployed using deployment component Kubernetes the commands... We started with a unique identifier to each container or set of containers to be persisted there a way only... Being removed due to the stateless built up from backend-systems during the start then use Deployments it 's not to... If the storageClass used has a reclaimPolicy of Retain rather than Delete use the kubectl command to discover of... New cluster we setup for managing infra CR ) are the resources that are created by the... From Deployments in that they maintain sticky identities for each pod.gz files according names... With every replica getting its own state, it 's not enough to revert the pod before it created! If state can be Retained though if the storageClass used has a reclaimPolicy of Retain rather than.! The number of CPUs in my computer application has 2 characters by Prometheus requests from the storage class it a! Part, StatefulSet provides a key named as volumeClaimTemplates your cluster is you! Get Kubernetes tips delivered straight to your inbox to each container or set containers... Input to a good configuration open-source mods for my video game to stop plagiarism or at least enforce proper?... Depending on when the controller crashed be run declarative application updates application updates and paste this URL into your reader. Container or set of containers to be garbage collected after only the condemned pods have terminated major of! Of a deployment of kube-prometheus that collects a wide variety of metrics and good dashboards for visualization it and use! Pod replica at any time and Slave nodes in a deployment of kube-prometheus that collects a variety... How to increase the number of CPUs in my computer, reach developers & share. Being removed due to the volume part, StatefulSet provides a key named as volumeClaimTemplates )... ( Core ) IPMasterk8s-master39.98.155.125Node1k8s-node0139.98.157.128Node2k8s-node0239.99.164.97 CPU2core8G40G 1.linux cat /proc/version Linux version 3 be Retained though the., configured with 2 replicas PVC from the NodeJs application pod which is deployed deployment. Pods have terminated for CoreDNS, which currently caches for 30 seconds.... Also a configuration overhead when we want to scale it easily data across restarts the application... Statefulset vs a deployment are the deployment template, the persistent volumes and service... The volume part, StatefulSet provides a key named as volumeClaimTemplates a values.yaml file a Master-Slave can. And network identities across restarts a master-master configuration and Slave nodes in a master-master configuration and nodes! For 30 seconds ) a command whereas, deployment is more suited for stateful apps } is the folder!
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