one may never need to manipulate ReplicaSet objects when using a Deployment)Alternatives to ReplicaSet Deployment (recommended) Deployment is an object which can own ReplicaSets and update them and their Pods via declarative, server-side rolling updates. Can also be specified via K8S_AUTH_HOST environment variable. I want to change the number of replications (pods) for a Deployment using the Kubernetes API (v1beta1). The number of ready replicas for this replica set. New pods become available. 8. The Replica Set Controller detect the change then according to the number of replica, create Pod objects. will do the trick for you. selector field defines how the created ReplicaSet finds which Pods to manage. The Deployment creates a ReplicaSet that creates three replicated Pods, indicated by the . The Deployment creates a ReplicaSet that creates three replicated Pods, indicated by the . A ReplicaSet ensures that a specified number of Pod replicas are running continuously and helps with load-balancing in case of an increase in resource usage. The following deployment strategies are supported in the built-in Kubernetes deployment object. This means you can start with a Pod, and after a while you can add it to a Replicaset if you want to. nodeAffinity field (if specified) is taken into consideration by the DaemonSet controller when evaluating the eligible nodes, but is. Kubernetes marks a Deployment as complete when it has the following characteristics:Relationship between Deployment and ReplicaSet in kubernetes. This document provides strategies for replica set deployments and describes common architectures. Alternatives to ReplicaSet Deployment (recommended) Deployment is an object which can own ReplicaSets and update them and their Pods via declarative, server-side rolling updates. You can monitor the progress for a Deployment by using kubectl rollout status. We can also roll out an app via a ReplicaSet but a deployment resource give us a declarative application update. The standard replica set deployment for a production system is a three-member replica set. A ReplicaSet ensures that a specified number of Pod replicas are running continuously and helps with load-balancing in case of an increase in resource usage. $ kubectl apply -f deployment. 2. When a Deployment is changed, the previous ReplicaSet needs to. Once your Pods have started, you can scale the StatefulSet up or down without risking the destruction of the MySQL primary node. However, more sophisticated selection rules are possible, as. if you delete a Deployments / Services, etc. New Pods become ready or available (ready for at least MinReadySeconds). Kubernetes provides a guarantee that the established Pod order will be respected. Related content: read our guide to Kubernetes Persistent Volumes. there is a deployment tool like ArgoCD / FluxCD / other tool that recreates them. is highlighted above. true ← (default) wait_sleep. In general, Deployment is a more powerful and feature-rich resource than ReplicaSet. To specify a port to connect to on localhost, you can use either: A connection string with the chosen port. Although there are fundamental differences in how Deployments and StatefulSets operate, both are meant to ease the deployment and management of containers in a. While ReplicaSets can be used independently, today they're mainly used by Deployments as a mechanism to orchestrate Pod creation, deletion and updates. . The Deployment is scaling up an existing ReplicaSet. Deployment Patterns for MongoDB Replica Set. For example, when you create a ReplicaSet, Kubernetes. This deployment of DCs is known as a replica set. I am not able to delete this ReplicaSet as well. At the same time, Kubernetes Concepts page says about ReplicaSet object. Create a deployment configuration. string. The deployment process for Deployments is driven by a controller loop, in contrast to DeploymentConfigs which use deployer pods for every new rollout. El Deployment está escalando su ReplicaSet más nuevo. To learn more about replica sets, see the Replication Introduction in the MongoDB manual. The . Kubernetes Documentation. Kubernetes creates a new ReplicaSet each time after the new Deployment config is deployed and. The ReplicaSet creates Pods in the background. These sets provide redundancy and fault tolerance. The following is an example ReplicaSet definition: apiVersion: apps/v1 kind:. Create a DaemonSet. integer. In your scenario, the replicaset currently uses Selector app=nginx-app,pod-template-hash=b8b875889. Replica Count: The number of replicas (pods) the controller should always be. Normally, the old (previous). 25, so it rounds up to 7. The Deployment will create a replica set before creating the Pod. kubectl delete deploy inginx-deploy. Deployment is an abstraction over ReplicaSet. Kubectl Scale use cases. Reload to refresh your session. Use the kubectl apply command to create the ReplicaSet by applying the manifest:DaemonSet is a controller similar to ReplicaSet that ensures that the pod runs on all the nodes of the cluster. A ReplicaSet is a Kubernetes object that runs multiple instances of a pod and ensures a certain number of pods is running at all times. selector field defines how the created ReplicaSet finds which Pods to manage. Default value: pod. initiate () to initiate the replica set. In this case, you select a label that is defined in the Pod template (app: nginx). This document provides strategies for replica set deployments and describes common architectures. 18 the kubectl run will no longer create deployments but pods. Use this procedure to create a new replica set in a member Kubernetes cluster in a multi-Kubernetes-cluster deployment. By default, Kubernetes keep 10 replica sets for each deployment, which means you can go back 9 versions prior. A standalone instance isn't a good choice for a production deployment because it can be a single point of failure. 0. The rules are of the form "this pod should (or, in. ReplicaSet will ensure that the desired no. Kubernetes marks a Deployment as progressing when one of the following tasks is performed: The Deployment creates a new ReplicaSet. . Update the deployment. Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to. ReplicaSet: Consider a ReplicaSet as a fundamental worker that guarantees a predetermined number of identical workers (pods) are constantly active. 3. Deployment resources within Kubernetes have simplified container deployments, and they are one of the most used Kubernetes resources. As per the name, ReplicaSet is used for managing the replicas. 9k 45 151 238 asked Mar 25, 2016 at 12:56 David Knell 997 1 9 10 1 I am having the same question at the moment. revisionHistoryLimit is an optional field that specifies the number of old ReplicaSets to retain to allow rollback. This means that a Deployment can have as many active ReplicaSets as possible, and eventually the deployment controller will scale down all old ReplicaSets and scale up the newest one. With ReplicaSet you define number of replicas you want to run. However we also want to delete the replicasets and pods that below to 'our-deployment-name'. stateless 앱을 배포할 때 사용되는 가장 기본이 되는 컨트롤러 입니다. Objectives Create an nginx deployment. You can use the delete command to delete an object from a cluster: delete <type>/<name>. Superseded by the Deployment and ReplicaSet APIs. tier=backend. spec. These sets provide redundancy and fault tolerance. Their purpose is to keep a set of identical pods running and upgrade them in a controlled way. Deployment sẽ sở hữu và quản lý các ReplicaSet của chúng. Replication Controllers perform the same function as ReplicaSets, but Replication Controllers are old school. yml. 1. The . Create a deployment. Walaupun ReplicaSet dapat digunakan secara independen, seringkali ReplicaSet digunakan oleh Deployments sebagai mekanisme untuk mengorkestrasi pembuatan, penghapusan dan pembaruan Pod. ReplicaSet and PODS are associated with the selectors. selector section so that new replicaset and deployment can be run while old one still taking traffic. When you revise a deployment, a ReplicaSet is created that. ReplicaSet ReplicaSet 的目的是维护指定数量的 Pod，常用做保障指定数量 Pod 的可用性 Deployment Deployment 是一个用来管理 ReplicaSet 的更高级概念，某种程度上我们不应该操作 ReplicaSet，而是直接使用 Deployment。Deployment 拥有 Rollout & Rollback 功能，方便我们管理。 StatefulSet StatefulSet 用来管理有状态的应用，其会. Ok, when you specified the "kind" of artifact and run the command apply over k3s, It creates a group(s) of Pods, ReplicaSet, Deployment, or another artifact. Let's understand the differences between Deployment, ReplicaSet, and Pod. also, another suggestion don't use the Replicasets by default Deployment create the Replicaset in the background. replicas field. Khi triển khai một ứng dụng mới thông qua Deployment, nó sẽ tạo ra một ReplicaSet mới để quản lý các Pod mới được tạo ra. Now copy your deployment file to a master node and apply it. Select the MongoDB version for your replica set. If you already have one or more database deployments, click Create. While ReplicaSets can be used independently, today they're mainly used by Deployments as a mechanism to orchestrate Pod creation, deletion and updates. The ReplicaSet ensures that the desired number of replicas (copies) are running at all times by creating or deleting Pods as needed. Repare que ao aplicar o deployment ele ja cria automaticamente o ReplicaSet e por consequência o pod, como não especifiquei o número de réplicas ele criou apenas um pod. yaml. When we create a deployment it create a replica set and number of pods (that we gave in replicas ). How to delete objects. All fine till here. A ReplicaSet, as the name implies, is a set of replicas (Pods) maintained with their Revision history. It also provides control when we have to. The stable/mongodb-replicaset chart provides different options when it comes to using Secrets, and we will create two to use with our chart deployment: A Secret for our replica set keyfile that will function as a shared password between replica set members, allowing them to authenticate other members. I'm trying to delete some old deployments / replicasets I have in my cluster but when I run kubectl delete deployment It'll say the deployment is deleted and the pod from that deployment is Terminating, but then a few seconds later the deployment is magically recreated and the pod comes back. replicas: 2 a new ReplicaSet is created, and it observes the. Optional. 7. 決めた分だけ Pod の起動を維持してくれるし、これで事足りる。. kubectl label nodes <node> <key>=<value>. A Deployment deletion; A ReplicaSet creation; A ReplicaSet update; A ReplicaSet deletion; A Pod deletion; All those triggers allow the entire handling of a gradual rollout. Both are related to the limited control that deployments provide over how an application runs: Lack of granular control. A ReplicaSet’s purpose is to maintain a stable set of replica Pods running at any given time. 1 that I run. selector field defines how the created ReplicaSet finds which Pods to manage. Now we’ll create a Kubernetes service using our deployment from the previous section. Cet objet est souvent utilisé pour garantir la disponibilité d'un certain nombre identique de Pods. In Kubernetes, you do not create ReplicaSets directly. ReplicaSet ：同じ仕様のPodを期待する数に維持するオブジェクト. You'll start by creating a ReplicaSet manifest in YAML format. The Deployment is scaling down its older ReplicaSet(s). spec. StatefulSet で作成された Pod は、それぞれ単一の PV をマウントしています. You may test it, after deleting the ReplicaSet and then typing the command kubectl get pods into the terminal. Replica Set is the next generation of Replication Controller. Imperative way: (this will then diverge from what you have in your yaml-file) kubectl scale deployment mage-di --replicas=2. Create pods. It also needs to check whether the target pod is already managed by another controller (like a Deployment or another ReplicaSet). For the value. It deletes inginx-deploy Deployment object and also its associated Pod and ReplicaSet objects as shown in the below picture: Fig-8:- Delete inginx Deployment without cascade option. This option is mandatory as we aren’t updating the value of the spec. The standard replica set deployment for a production system is a three-member replica set. You can define a ReplicaSet using a YAML file. A standalone mongod instance is useful for testing and development. Terraform by-default uses Deployment for ReplicaSet. When we create a Kubernetes Deployment with the name web-app, it will create a ReplicaSet with the name web-app-<replica-set-id>. yaml. Podの雛形 (Pod Template)を定義し、Label Selectorという方法で管理対象を. Replication Controllers and PODS are associated with labels. 📍 Deployment vs ReplicaSet vs Pod: In Kubernetes, different objects serve various purposes when managing pods. functionality, because unlike kubectl rolling-update, they are declarative, server-side, and have additional features. ReplicaSets are the smart way to. Changes to label selectors make existing pods fall out of ReplicaSet's scope, so if you change labels and label selector the pods are no longer "controlled" by ReplicaSet. However, more sophisticated selection rules are possible, as. For Deployment, ReplicaSet, Replication Controller, only scale, if the number of existing replicas matches. In other words, a ReplicationController makes sure that a pod or a. The old ReplicaSet is scaled down as the new one is scaled up, ensuring that the. Click the Save button. Now we’ll create a Kubernetes service using our deployment from the previous section. The major difference between a ReplicaSet and a Replication Controller right now is the. A pod is the smallest unit of deployment in Kubernetes, consisting of one or more containers that share resources and networks. But when I edit this deployment using the command kubectl edit deployment my-dep2, only changing the version of busybox image to 1. The selectorfield under specdefines how this ReplicaSet identifies the pods it needs to manage. root@k8s:. A Pod is connected to a Daemon-/Replicaset or a Deployment by matching on its selectors. A Deployment is the preferred way to deploy an application inside a pod. k8s控制器--Replicaset和Deployment 一、Replicaset控制器 2. The differences in this manifest are: # kubectl create -f replicaset. A deployment creates a ReplicaSet that has the purpose of maintaining a "set" of "replicas" of said deployment. Behind a deployment. Improve this answer. 8. StatefulSetsA Replicaset is a structure that enables you to easily create multiple pods, then make sure that that number of pods always exists. Under the hood, Deployment creates a ReplicaSet which in turn creates pods on our cluster. I want a Replica. The Deployment can manage multiple ReplicaSets in order to perfom rolling update of the. When to use a ReplicaSet. If there are too many pods, it will kill some. there is a Kubernetes Deployment that recreates it. In general, you can set up replica sets for testing either with RBAC enabled or disabled. kubectl get pods. 以下のyamlファイルを作成しました。Deployment also ensures that only a certain number of Pods are created above the desired number of Pods. This way the deployment will be marked as. This is where PDB s provide the added advantage over the Replicaset. r. However, more sophisticated selection rules are possible, as. More precisely, a Deployment creates a ReplicaSet which then creates a set of identical, steteless, pods, w. So, for example if we need our ReplicaSet to manage all pods with the label role=webserver, the controller will search for any pod with that label. Scales down all deployments in a whole namespace: kubectl get deploy -n <namespace> -o name | xargs -I % kubectl scale % --replicas=0 -n <namespace>. The difference between a ReplicaSet and a ReplicationController is that a ReplicaSet supports set-based selector requirements whereas a replication controller only supports equality. ReplicaSet は Pod を作成して管理するが、 ReplicaSet が Pod を所有しているわけではない. Now, let’s scale them down by specifying the –replicas=1 option to the command: $ kubectl scale -. But what ends up happening is all the pods in the replicaset inside the deployment will end up using the same shared volume and end up modifying the same data on disk. yaml file of helm) to any number. Rolling Deployment. In this method, we’ll be setting up replica sets with the access control disabled for deploying it in a testing environment. Click KUBERNETES OBJECT STATUS to see the object status updates. The following is an example ReplicaSet definition: apiVersion: apps/v1 kind:. consider the deployment is being updated to a later version of nginx image, as part of the upgrade it creates a new replicaset in the background which uses same selector but with new pod-template-hash, meaning the selector for the new. When you create a Deployment, a ReplicaSet resource is created underneath. After the deployment starts, you find a new KUBERNETES OBJECT STATUS tab next to the TASK LOG tab. This will tell you what "owns" the pod. replicas field. Deployments and deployment configs are enabled by the use of native Kubernetes API objects ReplicaSet and ReplicationController, respectively, as their building blocks. You cannot create replicaset using the command line. Deployment is an abstraction over ReplicaSet. revisionHistoryLimit is an optional field that specifies the number of old ReplicaSets to retain to allow rollback. yaml After some time, we modify d. kubectl scale deployment <deployment-name> --replicas=3 My. Imperative config management with commands. Alternatives to ReplicaSet Deployment (recommended) Deployment is an object which can own ReplicaSets and update them and their Pods via declarative, server-side rolling updates. When we create a deployment, the relevant controller automatically creates the replicaset, and. Deployments create a new replica set whenever you do an update to the deployment. Note: In Kubernetes, Deployments don’t manage Pods directly. StatefulSets. e. A standalone instance isn't a good choice for a production deployment because it can be a single point of failure. StatefulSet is the workload API object used to manage stateful applications. Cet objet est souvent utilisé pour garantir la disponibilité d'un certain nombre identique de Pods. Aunque que los ReplicaSets puede usarse independientemente, hoy en día se usan principalmente a través de los Deployments como el mecanismo. It uses a template to describe what each Pod must contain. kubectl get pod NAME READY STATUS RESTARTS AGE myapp-5d5b49b5ff-j4mkg 1/1 Running 0 31s myapp-5d5b49b5ff-j5jh5 1/1 Running 0 44s myapp. @Jonas I did. When to use a ReplicaSet. Creating and Checking the Status of a ReplicaSet. A Deployment is a Kubernetes object that manages a set of identical pods, ensuring that a. 14, 2023 Updated Nov. Geographically distributed replica set – Enhances redundancy of data besides protecting data against faults such as power loss. template) is changed. Specifically, we define the desired state of the application using DeploymentSpec. spec. apps values should count 2 available instances. 9) is a Kubernetes resource used to manage stateful applications. kubectl apply -f dp. The United States and China, the world’s two largest climate polluters, have agreed to jointly tackle. When you updated the Deployment, it created a new ReplicaSet (nginx-deployment-1564180365) and scaled it up to 1 and waited for it to come up. Next, create a release and a deployment for this project. spec. It’s mainly used by Deployment as a mechanism to orchestrate pod creation, deletion and updates. Deployment status, notice only 2 ready replicas:A new deployment has been created and the release was successfully deployed on our AKS cluster. A Replicaset is a K8s object, a set of Pod templates that describe a set of Pod replicas. For example, the following commands connect to a deployment running on localhost port 28015: mongosh "mongodb://localhost:28015". I'm searching for an easy way/workaround to automate the flow: Build triggered > a new Docker image is pushed (withoud version changing) > Deployment will update the pod > service will expose the new pod. As such, it is often used to guarantee the availability of a specified number of identical Pods. Alternatives to ReplicaSet Deployment (recommended) Deployment is an object which can own ReplicaSets and update them and their Pods via declarative, server-side rolling updates. ReplicaSet is the next-generation ReplicationController that supports the new set-based label selector. 15340e5036ef7d1c ReplicaSet Normal SuccessfulDelete replicaset-controller Deleted pod: wordpress-686ccd47b4-4pbfk default 22m 22m 1 wordpress-686ccd47b4. You cannot create any Deployment (RelicaSet) without container properties description (images, volumes etc. Deployments manage ReplicaSets, and they help create multiple deployment strategies by appropriately manipulating them to produce the desired effect. You can easily verify this using kubectl to retrieve pods and replica sets after. So, Replicaset ensure replicas of pods are available whereas deployment are reponsible for managing different versions of the application. As an alternative to using this procedure, you can use. However, it handles updating them in a controlled way. @HunzlaSheikh When you run kubectl delete -f render. # Create the MySQL StatefulSet using deployment we can undo deployment, pause deployment, resume deployment. ReplicaSet then fulfills its purpose by creating and deleting Pods as needed to reach the desired number. The interesting thing here is that when there is pod that actually matches the selector labels of the RS without. Scaled up replica set test-deployment-5c876b9587 to 25 Scaled up replica set test-deployment-6765d87dcf to 7 What it's doing here is scaling up the initial set of 25 (after I deployed the deployment). By default, 10 old ReplicaSets will be kept, change it to one so you dont have more than one old replicaset. A ReplicationController ensures that a specified number of pod replicas are running at any one time. If you are connected to your self-hosted MongoDB Enterprise or MongoDB Community deployment, run db. e: class-name and the pod created will be class-name-0 and you can replace the _ by -. Use kubectl to label the node with a key-value pair. spec. It specifies the application's life cycle, including the pods assigned to the application. added in kubernetes. However, a Deployment is a higher-level. Annotations are important for scraping pods for metrics. you can list all the pods in custom-namespace. To estimate cost for. a ReplicaSet is a native Kubernetes API object that ensures a specified number of pod replicas are. For more. Users do not have to manipulate replication controllers, replica sets, or pods owned by DeploymentConfig objects or deployments. Deployment is a higher-level API object that updates its underlying Replica Sets and their Pods in a similar fashion as kubectl rolling-update. The following Deployment definition deploys four pods with nginx as their hosted application:Select the feature compatibility set . The deployment sets up a ReplicaSet with three pod replicas, specified in the replicasfield under spec. spec. 2 Answers. g. Deployment control the RS, and RS controls pods. Create a Service. To work with Namespace, you need to add --namespace flag to k8s commands. To make changes in your current deployment you can use kubectl rollout pause deployment/YOUR_DEPLOYMENT. A Deployment creates a ReplicaSet and manages the lifecycle of the Pods controlled by the ReplicaSet. Ta thấy kết quả trả về có 1 ReplicaSet có tên là myapp-deployment-549fd4bf6c. The deployment will indicate the current "revision" of the replica set with the deployment. When you updated the Deployment, it created a new ReplicaSet (nginx-deployment-1564180365) and scaled it up to 1 and waited for it to come up. Aug 25, 2023 10 min read Statefulset Deployment Kubernetes. ownerReferences" field with the ID of that ReplicaSet. Convert a Standalone mongod to a Replica Set. The ReplicaSet is responsible to manage the Pods. It's mainly used by Deployment as a mechanism to orchestrate pod creation, deletion and updates. Canary Deployments. So, if you want to change anything in the pod Spec, you should make that change in the deployment, not in the replicaset or the pod directly as they will get overwritten. Ops Manager initially groups each process under the replica set name. there are a few things you can do with a DeploymentConfig (around triggers) that you. A Deployment allows you to create a newer revision of a ReplicaSet and then migrate existing pods from a previous ReplicaSet into the new revision. To scale up set --replicas=1 (or any other required number) accordingly. On the deployment configuration editor page or in the fromimage page of the web console, set the Pull Secret. The ReplicaSet creates Pods in the background. ) If you are going to use. The ReplicaSet creates Pods in the background. Therefore, we recommend using Deployments instead of directly using ReplicaSets, unless you require custom update orchestration or don't require updates at. # Create the MySQL StatefulSetusing deployment we can undo deployment, pause deployment, resume deployment. Data Directory. Kubernetes has emerged as the de facto standard for container orchestration. ReplicaSets will create and scale Pods based on the triggers you specify in your Deployment. Use kubectl to list information about the deployment. The deployment controller extends the ReplicaSet Controller and is responsible for rolling out software updates when you create pods with deployment resources and update them with new versions of your software. Below is the yaml file for Deployment. Process Name. string. kind: Deployment name: php-apache minReplicas: 1 maxReplicas: 10 targetCPUUtilizationPercentage: 50. The Deployment is scaling up its newest ReplicaSet. When a Deployment is changed, a new ReplicaSet is created. If you see the logs, they are starting from 73, meaning that the previous pod had written till 72 in the file and. The . The Pods and ReplicaSets are replaced individually, allowing old and new versions to briefly coexist. The random string is randomly generated and uses the pod-template-hash as a seed. To get the name just read the environment variable HOSTNAME. A ReplicaSet is one of the Kubernetes controllers that makes sure we have a specified number of pod replicas running. The old one remains the same. Additional replica sets in different Azure regions provide geographical disaster recovery for. Without this hash, when a Deployment specs are updated and a new ReplicaSet needs to be created, how would it be distinguished from the previous one? I think this is not a matter of overlapping ownership of objects, it is more of a matter of overlapping specs. Deployment membuat ReplicaSet baru. (ReplicaSet extends an older object called ReplicationController-- which is exactly the same but without the Revision history. El Deployment está reduciendo su(s) ReplicaSet(s) más antiguo(s). ReplicaSet – A ReplicaSet creates a stable set of pods, all running the same workload. With deployment you should be able to do rolling upgrade or rollback. For Deployment, ReplicaSet, Replication Controller, wait for the status value of ready_replicas to change to the number of replicas. From kubernetes terminology you can delete any component with below pattern. Deleting the Pod will kick in the current deployment configuration to be applied by Kubernetes to restart and redeploy the Pod. Imperative way: (this will then diverge from what you have in your yaml-file) kubectl scale deployment mage-di --replicas=2. Deployment Strategy. Or by using YAML: apiVersion: v1. Alternatives to ReplicaSet Deployment (recommended) Deployment is an object which can own ReplicaSets and update them and their Pods via declarative, server-side rolling updates. StatefulSet is also a Controller but unlike Deployments, it doesn’t create ReplicaSet rather itself. Listing all the pods belonging to a deployment can be done by querying its selectors, but using the deployment’s synthesized replicaset identifier allows for easier automation. A ReplicaSet (RS) is a Kubernetes object that ensures there is always a stable set of running pods for a specific workload. Important. 2. The replicaset with revision N-1 will be the "old" one. OpenShift Container Platform adds expanded support for the software development and deployment lifecycle with the concept of deployments. In this case, you select a label that is defined in the Pod template (app: nginx). Version. 4. Also, the template used to create the Pods will be specified in the Deployment YAML file. Hot Network QuestionsBased on the configuration you deployed with, both the deployment. These sets provide redundancy and fault tolerance. When you create a deployment, the template is needed for creationupdate of ReplicaSet and PODs, in this case, they need to match the selector, otherwise you would end up with orphan. This manifest defines a Deployment for the nginx application. Rolling Out. If a Pod from the ReplicaSet fails, it automatically creates an additional Pod from the. 1、Replicaset概述. This Deployment specifies that it wants to maintain 3 replicas of a Pod running the Nginx container. 3 Answers. kubectl -n eks-sample-app describe service eks-sample-linux-service. affinity. If a node is added/removed from a cluster, DaemonSet automatically adds/deletes the pod. To create a replica said execute the following command. 4 or later. It is a higher-level abstraction built on top of ReplicaSets that uses ReplicaSets internally to.