What are Namespaces ?
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In the context of computing and software systems, a namespace is a container that holds a set of identifiers or symbols that are used to organize and define various entities in a system, preventing naming conflicts between them. Namespaces help ensure that names are unique and don't clash with each other, making it easier to manage and maintain a system.
In the context of Kubernetes, a container orchestration platform, namespaces serve a similar purpose. Kubernetes namespaces are a way to divide cluster resources between multiple users, teams, or projects within a Kubernetes cluster. They provide a scope for names, allowing different teams or projects to use the same resource names without conflict.
Key points about Kubernetes namespaces:
Isolation: Resources created in one namespace are separated from resources in another namespace. This isolation helps prevent naming collisions and allows for better organization.
Scoping: Namespaces provide a way to scope and organize resources such as pods, services, replication controllers, and more. This is particularly useful in large, multi-team environments.
Resource Quotas: You can set resource quotas for namespaces, limiting the amount of CPU, memory, and other resources that can be used within that namespace.
Default Namespace: If you don't specify a namespace when creating resources, they are typically placed in the default namespace. However, it's good practice to create and use namespaces explicitly.
