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Kubernetes Administrator

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Kubernetes Administrator

Kubernetes Administrator

Duration
45 Hours

Course Description

            A Kubernetes Administrator manages and maintains Kubernetes clusters, focusing on the operational aspects of containerized applications and ensuring the stability, security, and performance of the cluster. This includes tasks like cluster setup, configuration, monitoring, troubleshooting, and automation of deployment and management processes. They work with development and operations teams to optimize application deployments on Kubernetes and ensure the cluster aligns with security and compliance standards. 

Course Outline For Kubernetes Administrator

Kubernetes fundamentals and architecture

  • Introduction to Kubernetes concepts: pods, nodes, deployments, services, namespaces.
  • Kubernetes architecture and its components: control plane (API Server, Scheduler, Controller Manager, etcd) and worker nodes (kubelet, kube-proxy, Container Runtime). 

Installation and configuration

  • Installing and configuring Kubernetes clusters, either on-premises or using cloud provider services like Google Kubernetes Engine (GKE), Amazon Elastic Kubernetes Service (EKS), or Azure Kubernetes Service (AKS).
  • Working with kubectl, the Kubernetes command-line tool, for managing and interacting with the cluster. 

Application lifecycle management

  • Deploying and managing applications using Kubernetes deployments and ReplicaSets.
  • Scaling applications horizontally and vertically.
  • Performing rolling updates and rollbacks of application deployments.
  • Managing application configurations using ConfigMaps and Secrets. 

Networking

  • Kubernetes networking concepts: container-to-container, pod-to-pod, pod-to-service, and external-to-service communication.
  • Implementing network policies to control traffic flow between pods.
  • Understanding Container Network Interface (CNI) and common networking plugins like Calico, Flannel, and Weave Net. 

Storage

  • Kubernetes storage options: Persistent Volumes (PVs) and Persistent Volume Claims (PVCs).
  • Implementing dynamic storage provisioning with StorageClasses.
  • Working with different storage solutions, including cloud provider storage, network file systems (NFS), and object storage. 

Security

  • Kubernetes security best practices: Role-Based Access Control (RBAC), network policies, secrets management, container image security.
  • Securing the Kubernetes API server and etcd.
  • Implementing pod security standards and admission controllers.
  • Regularly updating and patching clusters for vulnerability management. 

Logging and monitoring

  • Implementing logging and monitoring solutions for Kubernetes clusters, including system component logs, application logs, and node logs.
  • Using tools like Prometheus, Grafana, and the Elastic Stack (ELK/EFK) for metrics collection, visualization, and log analysis.
  • Setting up alerts and notifications for critical cluster events. 

Troubleshooting

  • Diagnosing and resolving common issues in Kubernetes clusters, nodes, pods, and deployments.
  • Using kubectl commands and other troubleshooting tools for debugging and inspecting cluster state. 

Cluster maintenance

  • Performing cluster upgrades and maintenance tasks, including managing static pods and CronJobs.
  • Implementing backup and recovery procedures for disaster recovery. 

Advanced topics (optional)

  • Helm for package management.
  • Kubernetes operators for automating complex application lifecycles.
  • Multi-tenancy and workload isolation. 
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