Kubernetes is an open-source system for managing containerized applications in a clustered environment.
It has a wide variety of features, including the ability to automatically scale and healing applications. Kubernetes can also be used to schedule and manage applications across multiple nodes. This makes it an ideal platform for deploying cloud-native applications.
Kubernetes is based on a client-server architecture. The components of the platform are:
A Kubernetes cluster consists of one master and one or more minions/nodes, which together provide the resources to run an application. Nodes can be physical or virtual machines and can reside in different zones within a cloud infrastructure. The nodes communicate with each other and the master to schedule containers and services. Master provides a Web user interface and RESTful application programming interfaces for controlling cluster components.
Kubernetes offers the following benefits:
Kubernetes can enable an application to scale up or down based on its current needs. This is useful for applications that need to be highly available and able to scale up quickly when there is an increase in demand, then scale back down when the demand decreases.
Kubernetes can also schedule containers across multiple nodes, allowing them to be distributed if needed. This allows applications running on containers to take full advantage of the infrastructure in which they are deployed.
Kubernetes enables an application to be self-managed, meaning it can detect health issues with itself or its dependencies, and recover in the event of failure. Pods can restructure themselves when failures occur. This lowers the risk of downtime during execution, making Kubernetes useful for cloud-native applications.
Kubernetes is also scalable, highly available, and provides self-healing capabilities that can reduce downtime to near zero. This makes it an ideal platform for deploying cloud-native applications.
Kubernetes security benefits include the ability to encrypt data at rest and in transit, as well as the ability to use Role-Based Access Control (RBAC) to manage user permissions.
Encryption at rest is important for protecting data from unauthorized access. By encrypting data, you can ensure that it is not readable by anyone who does not have the correct key. Kubernetes supports encryption using both symmetric and asymmetric keys.
Encryption in transit is also important for protecting data. By encrypting data as it travels between nodes, you can ensure that it is not readable by anyone who may intercept it. Kubernetes supports encryption using TLS/SSL.
RBAC enables you to control user permissions. You can create roles for users and provide access to specific resources based on those roles. With RBAC, you have the ability to assign permission levels only to the users who need them, rather than allowing a single administrator access that could potentially lead to a breach of security.
You can use a combination of Kubernetes’ security features, including authentication, authorization, and encryption, to secure your data. This makes it an ideal platform for deploying cloud-native applications.