As opposed to the legacy check, with the Kubernetes State Metrics Core check, you no longer need to deploy kube-state-metrics in your cluster. For detailed differences between the 3. The DaemonSet is named logtail-ds, and the Logtail pod on each node is responsible for collecting data (including stdout and files) of all running pods on this node. daemonset controller, replication controller). It is not applicable to daemonset. spec. Making use of the right one means that you express your intent clearly, and that Kubernetes can help you. DaemonSet. In this quick article, let us learn how to restart the Kubernetes DaemonSet and all the pods created by the DaemonSet. There is one other type ReplicationController but Kubernetes now favors Deployments as Deployments configure ReplicaSets to support replication. Create a StatefulSet. Pod referencing DOBS volumes must be owned by. As nodes are added to the cluster, Pods are added to them. StatefulSets vs. Priority indicates the importance of a Pod relative to other Pods. StatefulSetは状態を保持する (ステートフルな)アプリケーションを管理するためのKubernetesオブジェクトだ。. 3. When a StatefulSet controller creates a Pod for the StatefulSet, the control plane sets this label on that Pod. There are two. Author: Matthew Cary (Google) Kubernetes v1. Find a wide-ranging variety of Deployment Vs Statefulset In Kubernetes Statefulset In Kubernetes Explained Stateless Stateful classified ads on our high-quality marketplace. Kubelet first considers the QoS class and then the pod priority value to evict pods. However, even when using the same name for the volume claim as before, it seems to be creating an. DaemonSet is a Kubernetes resource used to manage a set of Pods that need to run on all or a subset of nodes in a cluster. Chạy monitoring daemon trên mỗi node như Prometheus Node Exporter hoặc Datadog agent. As nodes are removed from the cluster, those bookie pods are garbage collected. It maintains order when starting and stopping the pods. It automatically creates a new Pod when a new node is added and terminates it when a node is removed, maintaining the desired state of the system. real quick. kubectl proxy - Run a proxy to the Kubernetes API server. Like Deployment, StatefulSet manages pods that have the same container specification. N-1}. Additionally, we are creating a Persistent Volume using the volumeClaimTemplate and using it in the StatefulSet to store the PostgreSQL data. Workloads. DaemonSets. DaemonSet 方式 ：在 K8S 的每个 node 上部署日志 agent，由 agent 采集所有容器的日志到服务端。. A DaemonSet runs copies of a pod on all cluster nodes, or a selection of nodes within a cluster. Daemonset These are controlllers which are used to ensure that our pod runs on every node when its deployed. 9. Menghapus DaemonSet akan menghapus semua Pod yang ia buat. You can use the -o wide option to show more information. DaemonSet. 如同上面 StatefulSet 概念中所提到的，StatefulSet 中的 Pod 拥有一个具有稳定的、独一无二的身份标志。这个标志基于 StatefulSet 控制器分配给每个 Pod 的唯一顺序索引。Pod 的名称的形式为<statefulset name>-<ordinal index>。我们这里的对象拥有两个副本，所以它. name of the Job is part of the basis for naming those Pods. A StatefulSet is a higher-level concept that provides a declarative way to manage stateful applications. ReplicaSet vs. 2. StatefulSet is useful for running things in cluster e. kubectl get statefulsets. Each pod has a persistent identifier, that it maintains across any scheduling. These Pods have a lifetime that is tied to a machine lifetime: the Pod needs to be running on the machine before other Pods start, and are safe to terminate when the machine is. StatefulSet Deployment. Ingress; kubernetes-tutorial; 4. g Hadoop cluster, MySQL cluster, where each node has its own storage. Warning: In a cluster where not all users are trusted, a malicious user could. 🤝 - LinkedIn - - Threads - - Twitter - StatefulSet is a resource that manages a set of identical stateful pods. To update the DaemonSet, modify the YAML file and run the same command again. template. Desired Number of Nodes Scheduled: 0 Current Number of Nodes Scheduled: 0 Number of Nodes Scheduled with Up-to-date Pods: 0 Number of Nodes Scheduled with Available Pods: 0 Number of Nodes Misscheduled: 0 Pods Status: 0 Running / 0 Waiting / 0 Succeeded / 0 Failed Pod Template: Labels: app=traefik Service. Like Deployment, StatefulSet manages pods that have the same container specification. I’ve seen confusion around what a Deployment vs. Can be resource inefficient - if the nodes have different workloads, the configuration for the pods in the DaemonSet would have to be based off the most demanding node in the cluster. How do they differ while persisting data. I wrote an article on the Semaphore platform explaining the difference between the different Kubernetes controllers and the purpose they solve. If a taint with the NoExecute effect is added to a node, any pods that do not tolerate the taint are evicted immediately (pods that do tolerate the taint are not evicted). But what is the best for this case ? This Pod is stateful (I am using volume hostPath to keep the data) and is deployed using nodeSelector to keep it always on the same Node. To see the update status kubectl rollout status -n <namespace> daemonset <ds name>. 10 min read. . Deleting a DaemonSet will clean up the Pods it created. How Fluentd works with Kubernetes. You can then communicate with it directly by using the IP of the node it is running on. If a Pod cannot be scheduled, the scheduler tries to preempt (evict) lower priority Pods to make scheduling of the pending Pod possible. This application is a replicated MySQL database. Parallel. Identities are defined as: Network: A single stable DNS and hostname. kubectl get nodes. kubectl scale sts quarkus-statefulset --replicas=3. Just like StatefulSets, Kubernetes Deployments let you define the state of the application, and the Deployment’s controller is responsible for maintaining this state. and reference it later in the yaml file like so: - name: FOO value: $ (POD_NAME)-bar. This is because the back-end component requires persistent storage and needs to maintain its identity across restarts. kubectl create -f statefulset. DaemonSet example-2: Rolling update & Rollback. Un DaemonSet garantiza que todos (o algunos) de los nodos ejecuten una copia de un Pod. Each replica in a StatefulSet will also have a unique network identifier in the way of a hostname that is made up of the. 0. Implementing peer discovery through DNS. PersistentVolumes and StatefulSets are the main approaches for running stateful applications in Kubernetes. As nodes are removed from the cluster, those bookie pods are garbage collected. To communicate with pods in DaemonSet you can specify hostPort in the DaemonSet’s pod spec to expose it on the node. Deploy on. )StatefulSet también es un controlador, pero a diferencia del deployment, no crea ReplicaSet sino que crea el Pod directamente con una nomenclatura única. Kubernetes Deployment vs. Kubernetes DaemonSets in KubeSphere. To decide how to handle updates, StatefulSets use an update strategy defined in spec: updateStrategy. Once a PV is claimed by an STS replica. Deployments, StatefulSets, and DaemonSets allow you to scale up your Pods, roll out new images and configurations, and more. We also expose the service endpoint for Fluentd and kibana to connect to it. When we talk about workloads in Kubernetes, we mean the API resource types that run an application. After doing the research, I found that the Kubernetes Daemon set object is not supported for Fargate yet in AWS. To create the kube-logging Namespace, first open and edit a file called kube-logging. An advantage of a StatefulSet is ensuring that the state of an application is saved. 1 Answer. You create a StatefulSet using the kubectl create or the kubectl apply command - for example: PowerShell. If you want to run one pod on each node in cluster, you may use DaemonSet, which was created exactly for this purpose. Chạy log collector daemon trên mỗi node như fluentd hoặc logstash. The following example describes the features of a DaemonSet configuration file using an nginx image: yml. DaemonSet is a Kubernetes workload that ensures that specific Pods run on every node in the cluster. 5 or later. When using Kubernetes, most of the time you don’t care how your pods are scheduled, but sometimes you care that pods are deployed in order, that they have a persistent storage volume, or that they have a unique, stable network identifier across restarts. Thảo luận ban đầu xoay quanh StatefulSet và được mở rộng ra Stateful và Stateless nói chung trong cả Software Development và Devops. g. Editor's note: today's post is by Janet Kuo and Kenneth Owens, Software Engineers at Google. 4. You can specify how long a pod can remain bound to a node before being evicted by specifying the tolerationSeconds parameter in the pod specification. This page provides an overview of init containers: specialized containers that run before app containers in a Pod. Intermediate; DaemonSet; Edit this Page. Complete the following procedure to deploy the CN-Series firewall as a Daemonset. hostNetwork is an optional setting and is not necessary. This is useful if you. nodeAffinity field (if specified) is taken into consideration by the DaemonSet controller when evaluating the eligible nodes, but is replaced on the created Pod with the node. Deployment is the easiest and most familiar resource for deploying your application, Deployment is largely used for stateless applications. Read the DaemonSet object definition to understand the API for daemon sets. DaemonSet方式. Understanding ReplicaSet vs. If you are not mentioning any storage class name here, then it. Deploy Elastic Agent to the DaemonSet. Advanced StatefulSet adds a unorderedUpdate field in spec. Note that you need a running Elasticsearch v5+ cluster to receive log data before start. ). Algunos casos de uso. Unlike a Deployment, which is designed for stateless applications, a StatefulSet provides guarantees about the ordering and uniqueness of pods, and maintains persistent storage for each pod. 10 and configured the default namespace to enable 1. 3. Parallel. Deployments in k8s do not keep state in their Pods by assuming the application is stateless. Daemonset deploys one pod on each node in the cluster. Beberapa penggunaan umum. It can appear that StatefulSet is a way to solve at most one instance in a situation with a network partition, but that is mostly in case of a stateful replicated application like e. If you are unsure about whether. V tutorialu popisujeme 3 různé způsoby (Deployment, StatefulSet a DaemonSet), jak provádíme deploy aplikací v K8s – včetně praktické ukázky. Podname and Identity. When you set up Container Insights to collect metrics, you must deploy the CloudWatch agent container image as a DaemonSet from Docker Hub. Statefulset; daemonset; In this blog, we will be focusing on Deployment and Statefulset, Key Takeaways: How deployment and Statefulset works; What is the differnece between them; Deployment. How to run stateful applications in Kubernetes. Let’s see the difference. A StatefulSet is a Kubernetes API object for managing stateful application workloads. You should use a Job controller instead of a StatefulSet: A Job creates one or more Pods and ensures that a specified number of them successfully terminate. Unlike a Deployment, a StatefulSet. A StatefulSet is a type of controller in Kubernetes that manages the deployment and scaling of stateful applications. 1. template. The user can specify a different scheduler for the Pods of the DaemonSet, by setting the . A DaemonSet ensures that all (or some) nodes run a pod of bookie instance. DaemonSet StatefulSets Kubernetes StatefulSets introduce order and consistency to stateful applications, such as databases, by assigning unique identities and persistent storage to each pod. kubectl get pods. All three of these are defined via YAML configuration. Now, if I add tolerations to my container configurations in a StatefulSet if will be common for all pods of my StatefulSet and would schedule all pods on a node with matching taint. 這些Pod是根據相同的規範創建的，但不可互換：每個Pod都有一個永久性的標籤（label），它可以在任何重新安排時保留。. Problem. Although individual Pods in a StatefulSet are susceptible to failure, the persistent Pod identifiers make it easier to match existing volumes to the new Pods that replace any that have failed. Nếu param backoffLimit không được setting thì mặc định của nó là 6. Scrape intervals lower than 60s may result in increased costs (DPM > 1). Advanced StatefulSet for stateful applications; Advanced DaemonSet for daemon applications; BroadcastJob for deploying jobs over specific nodes; AdvancedCronJob for creating Job or BroadcastJob periodically; Sidecar container Management. kubectl describe svc nginx-app1. Kubernetes Documentation Concepts Workloads Workload Resources StatefulSets StatefulSets StatefulSet is the workload API object used to manage stateful. These Pods have a lifetime that is tied to a machine lifetime: the Pod needs to be running on the machine before other Pods start, and are safe to terminate when the machine is otherwise ready to be. The StatefulSet controller provides each Pod with a unique hostname based on its ordinal index. 3. So StatefulSet with 3 replicas will create 3 pods, each. Example-2: Define runAsUser for container. Discovering peers in a StatefulSet. This is the same behavior of DaemonSet in Kubernetes version 1. The logs are particularly useful for debugging problems and monitoring cluster activity. Kindly. kubectl --dry-run is a feature in kubectl that allows you to preview the changes that would be made to your cluster before actually applying them. Let’s talk about our final set type: a DaemonSet. apiVersion: extensions/v1beta1 ->. This page shows how to run a replicated stateful application using a StatefulSet. References. Now that the DaemonSet is in place, you might want to scale the number of pod instances. Using allowPrivilegeEscalation with Kubernetes SecurityContext. While the earlier controller types ensure that a specific number of. All existing persisted objects are accessible via the new API; Notable changes: spec. Using Kubectl allows you to create, inspect, update, and delete Kubernetes. kubectl delete sts --cascade=orphan <name> to delete the StatefulSet and leave its pods. PersistentVolumes. In contrast to that, the Pods. A DaemonSet ensures that all (or some) nodes run a pod of bookie instance. . The StatefulSet API object is used to handle stateful applications. StatefulSet Kubernetes | Understand what StatefulSet in Kubernetes is and how it worksUsing StatefulSet in practice 🙅🏼♀️ also enforce that Pods are removed in reverse order of their creation. DaemonSets are designed to run background services that are required by the other containers in the cluster, such as logging and monitoring agents, while. The StatefulSet will not create all the pods at once, like a Deployment, for example. Specify a name for the DaemonSet (for example, demo-daemonset), select a project, and click Next. HorizontalPodAutoscaler is used to scale the pods depending on the metrics limit. node-exporter will be installed as a DaemonSet. Ordinal Index. Since Elasticsearch maintains state, we need to use StatefulSet which is a deployment that can maintain state. Does not matter in which worker node they are running. 스테이트풀셋은. In the container, you can find the files a and b under /config, with the contents 1 and 2, respectively. See full list on semaphoreci. StatefulSets. StatefulSet and deployment controllers. It is primarily for internal use by controllers. We will select the value of the container that consumed the most in each moment. 5. Baremetal-ES or kubelet controlled static pods might perhaps be a better design. Deleting a StatefulSet You can delete a StatefulSet in the same way you delete other resources in Kubernetes: use the kubectl delete command, and specify the StatefulSet. Kubernetes DaemonSet is a great way to manage and deploy applications in a clustered environment. Fix: Use StatefulSet with dedicated pvc for disk buffer. Ketika Node baru ditambahkan ke klaster, Pod ditambahkan ke Node tersebut. DaemonSet databases occupy entire sets of nodes. StatefulSet est l'objet de l'API de charge de travail utilisé pour gérer des applications avec état (stateful). As with all other Kubernetes config, a Job needs apiVersion, kind, and metadata fields. By default, this is done as an anonymous user. By default, Kubernetes creates a default namespace for resources that do not have a namespace. As nodes are removed from the cluster, those bookie pods are garbage collected. Nếu chúng ta không chỉ định param completions thì sẽ sẽ chạy liên tục không dừng lại. DaemonSet je kontrolér, který se stará, aby na každém nodu z clusteru běžel právě jeden pod. spec. Unlike a Deployment, a StatefulSet. This command will allow you to edit the DaemonSet’s configuration in the command line, and will apply the changes when you are done. kube_daemonset_status_number_unavailable # 应该运行守护程序容器且没有任何守护程序容器正在运行并且可用的节点数 kube_daemonset_updated_number_scheduled # 正在运行更新的守护程序pod的节点总数 kube_daemonset_metadata_generation # 代表所需状态的特定生成的序列号。. Note. kubernetes. 14: kubectl edit pvc <name> for each PVC in the StatefulSet, to increase its capacity. StatefulSets are useful for managing stateful applications that require stable network identities and persistent. This is especially useful for system. StatefulSets in action with Istio 1. Deleting a DaemonSet will clean up the Pods it created. A DaemonSet ensures that a single instance of a pod is running on each node in a cluster. As nodes are removed from the cluster, those pods are garbage collected. Its support for canary, multi-batch, and A/B testing delivery modes can be helpful in achieving smooth and controlled rollouts of changes to your application, while its compatibility with Gateway API and various Ingress. This blog describes the two features namely minReadySeconds for StatefulSets and maxSurge for DaemonSets that SIG Apps is happy to graduate to stable in Kubernetes 1. Implementando en Kubernetes: Deployment vs StatefulSet vs DaemonSet. Deployment Kubernetes provides several ways to manage the lifecycle of pods: DaemonSets, StatefulSets, and Deployments. A DaemonSet is a controller that deploys pods to all nodes or a specific node. This guide provides a list of components that platform. DaemonSets. ). Because the replicas field of the zk StatefulSet is set to 3, the Set's controller creates three Pods with their hostnames set to zk-0, zk-1, and zk-2. Run. DaemonSet vs. A DaemonSet is a unique kind of resource that K8s assigns to a pod for each Kubernetes node in the cluster. StatefulSets can be used to create pods with a guaranteed start-up order and unique identifiers. kind tells Kubernetes to create a MySQL application with the stateful feature. Those API resource types include a Deployment, ReplicaSet, StatefulSet, DaemonSet, Job, CronJob, and of course the Pod. A DaemonSet ensures that a single instance of a pod is running on each node in a cluster. Por ejemplo, si creamos un StatefulSet. 🤝 - LinkedIn - - Threads - - Twitter - Kubernetes StatefulSet is a resource that manages a set of identical stateful pods. When a replica is first created, the Kubernetes control plane creates a PVC for that replica if one does not already exist. Deployments #kubernetes #replicaset #statefulset #daemonset #deployments #comparsion ALB vs NLB in AWS — Application load balancer vs Network load balancer. DoK #49 Deployments vs StatefulSets vs Daemonsets. 14 [stable] Pods can have priority. On an update the existing Pods will get deleted and recreated. Introduction What is Kruise Rollouts? Kruise Rollouts is a Bypass component that offers Advanced Progressive Delivery Features. The bookies deployed in a DaemonSet stores data on the local disks. 1. The Pods' names take the form <statefulset. 1. --force will also allow deletion to proceed if the managing resource of one or more pods is missing. 2 or later requires YAML 2. Define common group of shared volumes in Kubernetes (fsGroup) Define supplementalGroups inside Kubernetes SecurityContext. To create the DaemonSet, run the following command: $ kubectl apply -f daemonset. This guide provisions a logging pipeline including the Fluent Bit DaemonSet and its log input/filter/output configurations to collect Kubernetes logs including container logs and kubelet logs. DaemonSet is, and what they can or cannot do. Deployment, and DaemonSet, StatefulSets have unique properties that make them better suited for managing stateful. You can list all of the nodes in your cluster with. healthcheck. StatefulSet vs. StatefulSet vs. as with deployments. Gère le déploiement et la mise à l'échelle d'un ensemble de Pods, et fournit des garanties sur l'ordre et l'unicité de ces Pods. $ kubectl drain foo --grace-period=900 Options: --delete-emptydir-data=false: Continue even. The StatefulSet controller scaled the number of replicas. Understanding ReplicaSet vs. org YouTube channel that will provide you with a hand-on introduction to Docker and Kubernetes. If one of the Pods in the StatefulSet fails, Kubernetes makes a replacement Pod that is connected to the same PersistentVolume. Use a DaemonSet instead of a ReplicaSet for Pods that provide a machine-level function, such as machine monitoring or machine logging. Manages the deployment and scaling of a set of Pods, and provides guarantees about the ordering and uniqueness of these Pods. 15. Use daemonsets to create shared storage, run a logging pod on every node in your cluster, or deploy a monitoring agent on every node. In Kubernetes, the Namespace object provides a way to create isolated environments within a cluster. I have updated my question with more details. DaemonSet. DaemonSets are a type of resource in Kubernetes that make sure that a specific pod. If there's heavy load, you can set up a HorizontalPodAutoscaler to. A StatefulSet is useful in guaranteeing order and uniqueness of pods, by keeping a persistent identity of each pod using unique naming conventions. PVC: Every replica of a StatefulSet will have its own state, and each of the pods will be creating its own PVC (Persistent Volume Claim). 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 have its own state. A DaemonSet ensures that all (or some) nodes run a pod of bookie instance. Enter an image name from public Docker Hub or from a private repository you specified. Ketika Node dihapus dari klaster, Pod akan dibersihkan oleh garbage collector. Unlike a DaemonSet, which runs a single pod on each node, a StatefulSet maintains a unique identity for each pod it manages and ensures that the pods are started and terminated in a specific. The value of the label is the name of the Pod being created. This behavior doesn't apply when the entire StatefulSet is deleted and can be disabled by setting a StatefulSet's . 6 or above version client. Container state is not saved so all of the files that were created or modified during the lifetime of the container are lost. ; The password is taken from the Secret object using the secretKeyRef. Kubernetes Deployment Statefulset Daemonset metrics. Helm hooks provides a means to hook into events in the release process and take action. StatefulSet. kubectl Dry Run Option. You can also update the object's resource requests and limits, labels, and annotations. Chúng ta phải chú. What is your end goal here? To have a pod on each node in cluster, or to have, for example, 3 pods on 5 nodes, but no more that 2 pods on each node? – Andrew. See Pod Name Label in the StatefulSet topic for. This is the same behavior of DaemonSet in Kubernetes version 1. Melakukan proses manajemen deployment dan scaling dari sebuah set Pods, serta menjamin mekanisme ordering dan keunikan dari Pod ini. Another advantage of using a Daemonset is that, if you add a node to the cluster, then the Daemonset will automatically spawn a pod on that node, which a deployment will not do. DaemonSet vs. These pods have a lifetime that is tied to a machine lifetime: the pod needs to be running on the machine before other pods start, and are safe to terminate when the machine is. 1. NAME READY STATUS RESTARTS AGE web-0 1/1 Running 0 1m web-1 1/1 Running 0 1m As mentioned in the StatefulSets concept, the Pods in a StatefulSet have a sticky, unique identity. How Deployments, Statefulsets & Daemonsets work. But, how do you pick which one. The resource may continue to run on the cluster indefinitely. kubectl get pods -o wide. Likewise, StatefulSets are a great choice for assigning unique resources to containers and maintaining application state. ReplicaSet vs. StatefulSet vs. What is the difference between them. Nota: Los StatefulSets son estables (GA) en la versión 1. Check. m The deployed Pods usually contain background processes that need to be disseminated throughout the entire cluster. As nodes are removed from the cluster, those bookie pods are garbage collected. In case of any updates from other sources. You can build the image by docker run -it counter. This allows you to define the exact configuration for each of the pods in the group and which resources they should have access to. Stateful是指有狀態的、Stateless是指無狀態，也就是說當應用（app）需要狀態. template. This happens only when there is a resource shortage on the nodes. Creating a StatefulSet. 10 sidecar injection. We are creating a StatefulSet called postgresql-db with two pods (replicas: 2). As the name suggest the statefulsets are specifically used to make sure the app state is saved by each running pod. One pod writing to another's storage often isn't a best practice, and can lead to some unexpected race conditions; can the DaemonSet Pods make network calls to. If a DaemonSet Pod must run on specific Nodes, instead of all Modes, label selectors help identify the Nodes to run on. Daemonset is a kind of a Stateful set, and it is not possible, to achieve the same functionality, the Daemonset offers, with statefulsets. A DaemonSet is an active Kubernetes object managed by a controller. StatefulSet: how to choose. StatefulSets provide stable network identities for pods, which is important for our back-end component. Note: This is not a production configuration. But it's important to carefully evaluate whether your database is a good fit for Kubernetes and how best to make it work in a Kubernetes environment. Deployment: Pods have an ID that contains the. Get the pods using the following command and see the Pods have numbers as Suffix in the Pod name. kubectl get service. * DaemonSet, Deployment, StatefulSet, and ReplicaSet resources will no longer be served from extensions/v1beta1, apps/v1beta1, or apps/v1beta2 by default in v1. 4. Filebeat starts an input for the files and begins harvesting them as soon as they appear in the folder. This behavior doesn't apply when the entire StatefulSet is deleted and can be disabled by setting a StatefulSet's . Deploy your pods as part of a Deployment, DaemonSet, ReplicaSet, or StatefulSet across nodes. Note: The default scrape interval is set to 60s. Unlike a Deployment, a StatefulSet has a persistent ID for each Pod that persists across any rescheduling or restarts. StatefulSet ở đây nên. Stateful and Stateless Applications. The Kubernetes State Metrics Core check leverages kube-state-metrics version 2+ and includes major performance and tagging improvements compared to the legacy kubernetes_state check. We explore these features using Apache ZooKeeper and Apache Kafka StatefulSets and a Prometheus node exporter. Stateful applications require pods with unique identities. See Writing a Deployment Spec for more details. StatefulSet 用来管理有状态的应用，其会为每一个 Pod 维护一个 sticky identity，这些 Pod 从同一个 Spec 创建，但拥有自己唯一的网络标识、持久存储，会有序的扩容、部署。 限制： 必须挂载持久存储; 必须有一个 headless service 去响应 Pods 的网络标识。NOTE: DaemonSet vs StatefulSet. Deployment. It manages the deployment and scaling of a set of pods, and provides a guarantee of ordering and uniqueness of the pods. Originally published at on May 24, 2023. NOTE: DaemonSet vs StatefulSet. kubectl get pod security-context-demo-2.