Tag Archives: cloudnative
Kubernetes – Practice Test / Interview Q&A on Service Discovery
This article represents concepts, revision / quick notes, and practice or sample test/interview questions and answers on Service Discovery topic of Kubernetes. These notes, Q&A could provide to be helpful for those appearing for Kubernetes administrator certification exams (CKA). Revision Notes – Service Discovery Kubernetes supports the following two modes of service discovery: Environment variable DNS Service environment details can be set based on the following format. Service name needs to be in uppercase. {SVCNAME}_SERVICE_HOST {SVCNAME}_SERVICE_PORT When using environment variables for service discovery, it is a mandate that the services must be created prior to the pods which want to access those services. DNS server creates a set of records for each service discovered via watching Kubernetes APIs. Services of type ExternalName can only be accessed …
Kubernetes Interview Questions and Answers – Set 4
This page represents practice test consisting of objective questions and answers on Kubernetes. This practice test covers the topic such as Pod Lifecycle. The practice test can prove to be very helpful if you are preparing to take Certified Kubernetes Administrator (CKA) certification examination in near future. It covers the Core Concepts from CKA certification exam syllabus. Those preparing for interviews in relation with Kubernetes or cloud-native apps would also find these questions to be useful enough. These questions can as well prove to be useful for interns / freshers / beginners. Revision Notes – Kubernetes Concepts (Pod Lifecycle) A Pod status field is a PodStatus object which has got phase field. The phase of the pod is a simple, high-level summary of where the Pod is in its lifecycle Kubelet invokes …
Kubernetes Interview Questions and Answers – Set 3
This page represents practice test consisting of objective questions and answers on Kubernetes. The following topics are covered as part of this practice test / quiz: Container hooks and related lifecycle Pods The practice test can prove to be very helpful if you are preparing to take Certified Kubernetes Administrator (CKA) certification examination in near future. It covers the Core Concepts from CKA certification exam syllabus. Those preparing for interviews in relation with Kubernetes or cloud-native apps would find these questions to be useful enough. These questions can prove to be useful for interns / freshers / beginners. Revision Notes – Kubernetes Concepts (Container Hooks / Pods) Kubernetes provides containers with following lifecycle hooks: PostStart PreStop Kubernetes supports implementation …
Kubernetes – Interview Questions and Answers on Pods
This page represents practice test consisting of objective questions and answers on Kubernetes. The practice test can prove to be very helpful if you are preparing to take Certified Kubernetes Administrator (CKA) certification examination in near future. It covers the Core Concepts from CKA certification exam syllabus. Those preparing for interviews in relation with Kubernetes or cloud-native apps would find these questions to be useful enough. These questions can prove to be useful for interns / freshers / beginners. These questions are related with some of the following topics: Kubernetes Pods New feature release in Kubernetes 1.8 such as taints and tolerations The following is link to other practice tests: Practice test on introduction to Kubernetes Practice …
Top 6 Container Orchestration Tool for Cloud-native Apps (2017-2018)
This page represents a list of top 6 container orchestration and management tool which can be used for your next cloud-native apps. Before getting into details, lets look at the trends (Google trends). Trends for Container Orchestration and Management Tools List of Container Orchestration and Management Tools Here is the list of container orchestration and management tools: Kubernetes: Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. Following are some of the key features: Automatic places containers based on their resource requirements and other constraints Self-healing Horizontal scaling Automated rollouts and rollbacks Service discovery and load balancing Secret and configuration management Storage orchestration The following …
Quick Glance at Kubernetes Architectural Building Blocks
This blog represents information on some of the key architectural building blocks of Kubernetes. The greater details on Kubernetes architecture can be found on this page, Kubernetes Architecture. Following diagram represents technology architecture (with infrastructure) viewpoint of Kubernetes: Following is another viewpoint of the Kubernetes technology architecture: Pay attention to some of the following as per above diagrams: Kubernetes Master Controller Manager (kube-controller-manager): It is a daemon process that embeds the core control loops, a non-terminating loop, for regulating the state of the system. A control loop can also be seen as a controller. Details can be found on this page, kube-controller-manager. Controller manager supports different types of controllers such …
I found it very helpful. However the differences are not too understandable for me