What is Kubernetes?
An orchestration system to automate your SDLC
Kubernetes is an open-source container orchestration system and a powerful tool for automated deployment, scaling, and management of containerized applications. It provides a portable, extensible, and scalable platform that can be used to manage containerized workloads on a variety of infrastructures including the cloud. Features such as declarative configuration, autoscaling, and health checks make it a powerful option for application operations.
Benefits of Using Kubernetes in the Cloud
- Increased visibility and control: Central dashboard for managing applications and resources.
- Improved security: Role-based access control (RBAC) enhances access management and security.
- Open source with active community: Continuous improvements and community-driven support.
- Portability and flexibility: Works with any major cloud provider or on-prem setup.
- Self-healing capabilities: Automatically restarts or replaces containers that fail.
Core Components of Kubernetes
Understanding the main building blocks of Kubernetes helps you manage and optimize workloads more efficiently.
Nodes
A node is a physical or virtual machine that runs pods (the smallest deployable units in Kubernetes). Pods can host one or more containers.
Cluster
A cluster is a group of nodes managed by Kubernetes. It ensures workloads run across all nodes reliably and at scale.
Controllers
Controllers manage the state of Kubernetes objects. For instance, the Deployment Controller ensures that the specified number of pods are always running.
Services
Services expose pods to the outside world or other pods inside the cluster. They provide load balancing and DNS resolution for pods.
Best Practices to Secure Your Workloads
AWS Cloud
- Perform automated audit checks.
- Monitor IAM permissions and container misconfigurations.
Azure Cloud
- Use Azure Policy and Defender for Cloud for continuous compliance.
GCP Cloud
- Protect workloads with tight access policies and workload identity controls.
Why Use Kubernetes?
- Run applications at scale: Autoscaling based on real-time demand helps optimize cloud costs.
- Seamless application movement: Easily move workloads between environments (dev, staging, production).
- Add new functionality: Extend platform capabilities with open-source tools and custom plugins.
- Flexible deployment environments: Run apps in cloud, on-prem, or hybrid environments as needed.
Secure Your Containers With Cloudanix
Cloudanix provides a central security dashboard across AWS, Azure, GCP, and more. It includes:
- Container and Kubernetes workload protection
- IAM permission boundaries
- Misconfiguration alerts
- Cloud Workload Protection Platform (CWPP) features
Managed Kubernetes Services
Amazon Elastic Kubernetes Service (EKS)
EKS is AWS’s managed Kubernetes offering. It eliminates the need to install, operate, or maintain Kubernetes control planes or nodes. AWS handles the Kubernetes infrastructure, so you can focus on workloads.
Google Kubernetes Engine (GKE)
GKE is a fully managed Kubernetes service from Google Cloud. It enables easy deployment, scaling, and management of containerized apps, offering seamless integration with other GCP services.