por The tool kubernetes namespace refers to virtual type clusters that are backed by the same physical cluster. This option is designed to used in environments that have multiple users that are distributed across several teams or work projects.
It is recommended to use the kubernetes namespace when the number of users is high, then They are in charge of tasks related to the processes of offering a specific field of action for names.. It should be noted that the names of these resources need to be unique within each of the namespacesbut it is not mandatory that they be between said namespaces.
Kubernetes namespace features
Within the characteristics of the option kunernetes namespace you will find your ability to divide a given set of cluster resources among multiple usersas well as its contribution to the processes that allow clusters to be shared between different clients, teams and projects.
So if the user needs to separate some resources that only differ slightly, there is no need to use more than one kubernetes namespacebut you can use the tags offered by the platform. This will allow you to identify and distinguish resources within the same namespace. Although it is not necessary, The system provides the option to use different namespaces.
Kubernetes namespace carries out its tasks by offering the user a series of tools, such as, for example, a scope for the names and a way that can allow authorizations to be attached and policies to a given subsection of a system cluster.
It should also be clarified that a large part of the objects and resources of kubernetes are found in some namespacessuch as, for example, the podsreplication controllers managed by kube-controller-manager and else. However, There are elements that are responsible for representing these kubernetes namespaceso they are not inside them. Likewise, so-called low-level resources, such as volumes with persistence or nodes, are not within the namespaces of the platform. The next section talks about the possibilities of creating kubernetes namespace.
Initial Kubernetes namespace
Initially, there are three kubernetes namespace different ones with which the platform starts kubernetes. These are:
default: Its about kubernetes namespace set by default by the system. HE intended for objects that do not indicate or specify any of the namespaces.
kube-system: this kubernetes namespace is assigns to resources created by the same platform of kubernetes.
kube-public: is he kubernetes namespace which is created automatically by the system and which can be visible to all users, even those who are not authenticated. Usually, this namespace focuses on internal cluster use of the platform in situations where some of the resources need to be publicly visible and readable to the entire cluster.
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