Kubernetes is an open source orchestrator for deploying containerized applications

Kubectl is a command line tool for controlling Kubernetes clusters 

$ kubectl get node -- select or =[ label_name]

$ kubectl get pod [ pod_name] - o yaml -- export

$ kubectl get pod [ pod_name] - o yaml -- export > nameoffile.yaml

$ kubectl get pods - - field- select ort at us. phase=Running

$ kubectl describe ds [ daemonset_name] - n [ namespace_name]

$ kubectl get ds [ ds_name] - n [ ns_name] - o yaml

$ kubectl logs - f - c [ container_name] [ pod_name]

$ kubectl get serviceaccount s default - o yaml > . / sa.yaml

$ kubectl replace serviceaccount default - f . / sa.yaml

$ kubectl get roles - - all - namespaces - o yaml

$ kubectl get secrets - - all - namespaces

$ kubectl get cm -- all - namespaces - o yaml

Kubernetes Kubectl Cheat Sheet

Nomad is a flexible scheduler and workload orchestrator that enables an organization to easily deploy and manage any containerized or legacy application using a single, unified workflow. Nomad can run a diverse workload of Docker, non-containerized, microservice, and batch applications.

Kubernetes, also known as K8s, is an open-source system for automating the deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery. Kubernetes builds upon 15 years of experience running production workloads at Google, combined with best-of-breed ideas and practices from the community.

Nomad and Kubernetes are both popular container orchestration tools that help manage and deploy containerized applications. Here are some key differences between the two:

1. Complexity: Kubernetes is known for its complexity and steep learning curve, whereas Nomad is generally considered to be simpler and more straightforward. Kubernetes has a lot of built-in features and is highly customizable, which can be both a strength and a weakness depending on your needs.

2. Resource usage: Nomad is known for being more lightweight and efficient when it comes to resource usage. This can be an advantage if you're working with limited resources or if you're trying to keep costs down.

3. Scalability: Kubernetes is known for its ability to scale quickly and efficiently, thanks to features like auto-scaling and load balancing. Nomad can also scale well, but some users have reported that it's not quite as easy to set up and configure as Kubernetes.

4. Ecosystem: Kubernetes has a large and active ecosystem, with many third-party tools and plugins available. Nomad also has a growing ecosystem, but it's generally considered to be smaller and less mature than Kubernetes' ecosystem.

5. Use case: Both Nomad and Kubernetes are suitable for managing containerized applications, but they may be better suited for different use cases. Nomad may be a good choice if you're looking for a simpler, more lightweight tool that can handle a variety of workloads. Kubernetes may be a better choice if you need a more complex, feature-rich tool that can handle large-scale deployments.

6. Configuration: Nomad's configuration is simpler compared to Kubernetes. Nomad uses a declarative configuration file format, which is easier to understand and manage. On the other hand, Kubernetes uses a YAML configuration format, which can be more complex to manage and maintain.

7. Multi-cloud support: Nomad has built-in support for multiple cloud providers, including AWS, Azure, and Google Cloud. This makes it easier to manage deployments across different cloud environments. Kubernetes also supports multi-cloud deployments, but it requires more configuration and management.

8. Security: Both Nomad and Kubernetes have built-in security features, such as network segmentation, role-based access control (RBAC), and secrets management. However, Kubernetes has a more mature and robust security model, with many third-party security tools and plugins available.

9. Community: Kubernetes has a larger and more active community than Nomad, which means that there are more resources and support available for Kubernetes users. However, Nomad has a growing and active community, and it's backed by HashiCorp, a well-respected provider of open source tools for DevOps.

10. Integrations: Both Nomad and Kubernetes offer integrations with other tools and services in the DevOps ecosystem. For example, they can integrate with monitoring tools like Prometheus and Grafana, logging tools like Elasticsearch and Fluentd, and CI/CD tools like Jenkins and GitLab.

11. Operator frameworks: Kubernetes has a well-established Operator Framework that allows you to automate and manage complex applications on Kubernetes. This framework provides a higher-level abstraction that simplifies the management of applications and their dependencies. Nomad also has an operator framework, but it's not as mature as Kubernetes' operator framework.

12. Service discovery and load balancing: Both Nomad and Kubernetes provide service discovery and load balancing features to help manage traffic between services. Kubernetes has a more robust and mature service discovery and load balancing model, with features like Kubernetes Services and Ingress Controllers. Nomad also provides service discovery and load balancing, but it may require more configuration and management.

13. Monitoring and observability: Both Nomad and Kubernetes provide built-in metrics and monitoring features, but Kubernetes has a more mature and robust monitoring ecosystem with tools like Prometheus and Grafana. Nomad also has built-in monitoring features and can integrate with third-party monitoring tools.

In summary, Nomad and Kubernetes are both powerful container orchestration tools with their own unique strengths and weaknesses. Your choice between the two will depend on your specific needs, such as complexity, resource usage, scalability, ecosystem, configuration, multi-cloud support, security, community, integrations, operator frameworks, service discovery, load balancing, and monitoring.

So guys, in this article we see who is the best container orchestration tool  Nomad or Kubernetes.

Nomad vs Kubernetes : Which one is the best Container orchestration Tool

How to install a multinode cluster using minikube?

How to install a multinode cluster using minikube

Can someone please help me to fix this issue??

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k8s

Trending Blogposts on k8s

Kubernetes Kubectl Cheat Sheet

Nomad vs Kubernetes : Which one is the best Container orchestration Tool

Popular Discussions on k8s

openHow to install a multinode cluster using minikube

2

0

1

openK8S Error: no matches for kind "ClusterRoleBinding" in version "rbac.authorization.k8s.io/v1beta1"

14

0

4