How To Connect To Local Instance Of A Kubernetes Daemonset From Another Daemonset Cập Nhật Mới

No, a DaemonSet does not create a ReplicaSet directly, but it does create a set of Pod replicas.

A DaemonSet is a Kubernetes object that ensures that a specific Pod is running on all or a subset of nodes in a cluster. When you create a DaemonSet, it creates a single Pod on each node that matches the DaemonSet’s selector. If a new node is added to the cluster, the DaemonSet automatically creates a new Pod on that node. If a node is removed, the DaemonSet terminates the Pod on that node.

Under the hood, the Kubernetes controller responsible for managing DaemonSets creates a set of Pods, rather than a ReplicaSet. However, each Pod is managed by a ReplicaSet that is created automatically by the Kubernetes control plane. This ReplicaSet is responsible for ensuring that the correct number of replicas of each Pod is running, and it is managed by the same controller that manages ReplicaSets for other types of workloads.

In Kubernetes, a DaemonSet is a type of workload that ensures that a particular pod is running on every node in a cluster or a subset of nodes that satisfy a certain label selector. DaemonSets are commonly used for system daemons, network proxies, and other workloads that need to run on every node in the cluster.

When you create a DaemonSet, Kubernetes will automatically create a pod on every node in the cluster that matches the specified label selector. If a new node is added to the cluster that matches the label selector, Kubernetes will automatically create a new pod on that node. If a node is removed from the cluster or is no longer labeled with the required label, Kubernetes will automatically delete the corresponding pod.

DaemonSets can be used to deploy and manage system services, such as log collectors or network proxies, that need to be present on every node in a cluster. DaemonSets are also commonly used to deploy Kubernetes addons or plugins that provide additional functionality to the cluster.

One important feature of DaemonSets is that they ensure that each pod is unique and has a unique identity. This is achieved by using a unique hostname and IP address for each pod. This can be useful for network communication or for identifying pods in a distributed system.

Overall, DaemonSets are a useful tool for managing workloads that need to run on every node in a Kubernetes cluster. They simplify deployment and ensure that each pod is unique and has a unique identity.