Simply put, Kubernetes is an open source system for automated deployment, scaling, and containerized management of applications. The word Kubernetes comes from Greek and means helmsman or navigator. It is a product-level container orchestration technology that can automatically deploy, expand, and manage containers. Kubernetes is also known as K8S, where 8 is the 8 characters representing the "ubernete" in the middle. It is a container orchestration engine open sourced by Google in 2014 to automate the deployment, planning, expansion and management of containerized applications. It will form Application containers are grouped into logical units for easy management and discovery. They are used to manage containerized applications on multiple hosts in the cloud platform. The goal of Kubernetes is to make the deployment of containerized applications simple and efficient, and many details are not needed. Operation and maintenance personnel to carry out complex manual configuration and processing;
Nowadays, with the maturity of Kubernetes technology, Kubernetes is a hot mess. The rapid rise of Kubernetes is not only because it can simplify the work of operation and maintenance personnel, save a lot of manual work time, so as to achieve the effect of "lazy", we regard it as a human being. In addition, time and location are also indispensable.
Tianshi: When Docker and other container runtimes mature, more and more companies are running hundreds of container instances in private and public clouds. The focus has gradually shifted to how to manage and schedule containers, which naturally needs to be at the upper level. Set up a management system.
Location: K8S is endorsed by Google. It is evolved from the first-generation container management system Borg and the second-generation container management system Omega, which have been running stably for more than ten years. The current K8S is the third-generation container management system for large The automatic management of large-scale application clusters has put forward many advanced concepts and realized: Pod, ReplicaSet, Service, Kube-proxy, etc. Moreover, due to Google’s endorsement, more and more third parties have joined the K8S ecosystem. It can be said that the entire CNCF community is built around the K8S ecosystem. This is unmatched by other competitors (such as Mesos, Swarm, etc.).
Kubernetes is Google's open source container orchestration engine, which supports automated deployment, large-scale scalability, and application containerized management. When deploying an application in a production environment, multiple instances of the application are usually deployed to load balance application requests. Kubernetes is also an essential technology for operation and maintenance personnel, and it is also a rare good technology for developers. We can use Kubernetes technology to deploy microservices. In order to facilitate the learning of many Kubernetes novices, we launched The course is concise and allows you to quickly master Kubernetes in a relatively short period of time to quickly adapt to the needs of the company. Both developers and operation and maintenance personnel can quickly master this technology;
Lecturer: Power Node-Mr. Yang, Senior Lecturer in Java, Beijing University of Aeronautics and Astronautics, Master of Software Engineering. Presided over the development of the 2008 Olympic venues face information collection project, China Telecom billing project, Tsinghua University laboratory security project, Tsinghua University campus card project, Anheuser-Busch InBev Internet of Things project, JD cloud platform project, Renrenche.com, etc. big project. He has taught courses in Yantai University, Liaoning Normal University, Capital University of Economics and Business, Shenyang Institute of Technology, Jinan University, Xuchang College, Beijing Forestry University and other universities and received unanimous praise. The teaching style is humorous and easy to understand. Combining rich development experience to integrate actual combat into teaching, escort the smooth employment of students.
Core content of the course (directory):
What is Kubernetes?
Kubernetes Administrator Certification (CKA)
Kubernetes overall architecture
Kubernetes environment construction method
Kubeadm deployment Kubernetes
Kubernetes deployment environment requires
Kubernetes deployment environment to prepare
Kubernetes installation specific steps
Kubernetes deployment network plug-in
Kubernetes deployment "containerized application"
deployment
in the Kubernetes cluster an Nginx in the Kubernetes cluster Deploy a Tomcat
in Kubernetes cluster to deploy SpringBoot applications
Deploy Kubernetes Dashbaord
uses Ingress to expose applications
Use Ingress to expose containerized applications (Nginx)
kubernetes deploy Spring Cloud
microservices Kubernetes architecture and core components
Of course, although Kubernetes technology is very hot and it is not difficult to learn, there are still certain thresholds. Students who study this course need to master Docker technology before they can learn to have good results; the Kubernetes version used in this course is: 1.19.4. Before formal learning, it is necessary to understand the characteristics of Kubernetes. In general, Kubernetes has the following three characteristics:
1. Portability : Supports public cloud, private cloud, hybrid cloud, multi-cloud (multi- cloud)
2. Scalable: modular, plug-in, mountable, and combinable
3. Automation: automatic deployment, automatic restart, automatic copy, automatic scaling/expansion
Familiar with the component structure and functions of Kubernetes is the basic requirement for learning Kubernetes courses:
1. Master component
1.1kube-apiserver
1.2ETCD
1.3kube-controller-manager
1.4cloud-controller-manager
1.5kube-scheduler
1.6 plugin addons
1.6.1DNS
1.6. 2 User interface
1.6.3 Container resource monitoring
1.6.4 Cluster-level Logging
2. Node component
2.1kubelet
2.2kube-proxy
2.3docker
2.4RKT
2.5supervisord
2.6fluentd
The brand new video course launched by PowerNode-learn Kubernetes from scratch-K8S from entry to actual combat is officially launched on the whole network! What is unexpected is that such a good video course can now be learned for free.
Course Baidu SkyDrive download address:
https://pan.baidu.com/share/init?surl=2vG-aTUexOeIu7ROa_FCKA
Extraction code: jw57
What are you still hesitating? Come and learn our new Kubernetes video course, one more technology There is just one more choice. Kubernetes technology is like a new star that has just risen. It shines on the starry sky of Internet technology. We accept the baptism of this light and let our technology and career go further!
Source: http://www.bjpowernode.com/javavideo/206.html