13 Kubernetes Tricks You May Not Know
Kubernetes enhances container management, scalability, and security through various features. Here’s a condensed overview of 13 essential tricks:
01 – Graceful Pod Shutdown with PreStop Hooks:
- Use PreStop hooks to execute cleanup tasks before pod termination, ensuring smooth restarts and preventing data loss.
02 – Automated Secret Rotation with Kubelet:
- Automate secret updates without pod restarts, maintaining security without downtime.
03 – Debugging with Ephemeral Containers:
- Attach a temporary debug container to a running pod for live issue investigation without affecting its state.
04 – Horizontal Pod Autoscaling (HPA) with Custom Metrics:
- Scale deployments based on custom metrics beyond CPU and memory, aligning with specific performance indicators.
05 – Setup with Init Containers:
- Use init containers for setup tasks before starting the main application, ensuring dependencies are met.
06 – Node Affinity for Specific Scheduling:
- Apply node affinity rules to direct workloads to appropriate nodes, optimizing performance and compliance.
07 – Pod Isolation with Taints and Tolerations:
- Control pod placement on nodes using taints and tolerations, isolating workloads as needed.
08 – Priority and Preemption for Critical Workloads:
- Assign priority to pods, allowing important ones to preempt others, ensuring resource availability.
09 – Dynamic Configuration with ConfigMaps and Secrets:
- Inject configuration data into pods through ConfigMaps and Secrets, facilitating easy updates and secure data handling.
10 – Container Debugging with kubectl debug:
- Create a temporary pod for troubleshooting without impacting the original pod’s operation.
11 – Efficient Resource Management with Requests and Limits:
- Define CPU and memory requests and limits, balancing resource allocation and preventing monopolization.
12 – Extending Kubernetes with Custom Resource Definitions (CRDs):
- Use CRDs to add custom resources, enabling domain-specific functionalities within Kubernetes.
13 – Automation with the Kubernetes API:
- Leverage the Kubernetes API for dynamic cluster interaction, supporting sophisticated automation and integration. These tricks streamline Kubernetes operations, enhancing efficiency, security, and adaptability in managing containerized applications.
Original Article:
For more details about the provided tricks, check the below link:
https://overcast.blog/13-kubernetes-tricks-you-didnt-know-647de6364472
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