Kubernetes 1.2 newly added some of the feature, because bloggers have not yet in-depth research, so not too much involved.1. HelpSimilar to all command-line tool tools, Kubectl can also execute the Usage: kubectl [Flags] Kubectl [Commond]In addition, all command options can be used to obtain help for specific commands by executing--help.2. GetThe GET command is used to get one or some resource information for a cluster. Use--help to view more information. Kubectl's help information, examp
tragedy is that because of external reasons, the development environment to upgrade to VS2010, the above coincidence no longer exist, the program will crash, and because the modules used a lot of memset way to initialize the structure containing vector, but also need to solve the initialization of such structures, For example, non-vector struct members require zero zeroing.From the point of view of the program, this is a pod problem, the following is
The Kubernetes network model is made up of four parts from inside to outside:
The network where the pod interior container resides
The network where the pod resides
Network for communication between pod and service
Network of communication between outside and service
It is recommended that you understand the network model of Docker befor
[Commond]In addition, all command options can be used to obtain help for specific commands by executing--help.2. The Getget command is used to obtain one or more resource information for a cluster. Use--help to view more information. Kubectl's help information, examples are quite detailed and easy to understand. We recommend that you get used to the help information. Kubectl can list the details of all resource in the cluster. Resource includes cluster nodes, running
"Editor's words" kubernetes as the current mainstream container cluster management platform, the need for overall co-ordination of platform resource use, fair and reasonable allocation of resources to the relevant pod containers to use, and to ensure that the container life cycle has sufficient resources to ensure its operation. At the same time, due to the exclusive nature of resources, that is, resources have been allocated to a container, the same
already contains common features. In fact, each of them is a real function implementation. I believe these features are sufficient for you to develop an APP; you can view each function point;
Iv. Plug-ins
Abstract_target 'leleprojectdefault 'do pod 'afnetworking', '~> 3.0 'pod 'reactivecocoa ',' ~> 2.5 'pod 'sdwebimage', '~> 3.7.5 '
Use Cocoapods to create private podspec and cocoapodspodspecInitially
Third-party open-source libraries are inevitable for iOS project development. There are basically two reference methods:
Method 1: drag the file directly into the project.
Method 2: CocoaPods management.
We create a repository on Github or Coding, place our library code, and the directory structure becomes like this
When used, clone it and drag it into the project. Method 1Body
Method 2: import the database using
Kubernetes is Google's Open source container cluster management system. It is built on Docker technology and provides a whole set of functions, such as resource scheduling, deployment operation, service discovery, expansion and contraction capacity, for containerized applications, which can be regarded as Mini-paas platform based on container technology. The purpose of this article is to comb the architecture, concepts, and basic workflows of kubernetes, and to describe how to use kubernetes by
Kubernetes is Google's Open source container cluster management system. It is built on Docker technology and provides a whole set of functions, such as resource scheduling, deployment operation, service discovery, expansion and contraction capacity, for containerized applications, which can be regarded as Mini-paas platform based on container technology. The purpose of this article is to comb the architecture, concepts, and basic workflows of kubernetes, and to describe how to use kubernetes by
One, podfile.lock file generates a Podfile.lock file after you start using Cocoapods and after you perform pod install. This file does not seem to have much to do with us, and it should never be overlooked. The file is used to save the version of the Pods dependent library that has been installed, and the reachability file content for the cocoapods after installing Sbjson, afnetworking, pods three Podfile.lock dependent libraries is:
PODS:
Kubernetes is a master-slave structure, it mainly implements the Docker of the dispatch, the following detailed introduction of my understanding of the Kubernetes architecture:
Master node :
API Server: Provides the API interface of cluster management, it becomes the central hub of data interaction and communication between each function module in the cluster, and has the complete cluster security mechanism, is the core of the whole cluster.
Scheduler: Mainly responsible for the
or down containers at any time
Groups containers and provides load balancing between containers.
It is easy to upgrade the new version of the application container
Container elasticity is provided. If the container fails, replace it.
3. Kubernetes terminology
Kubernetes terminology:
Master Node: The computer used to control Kubernetes nodes. All task assignments come from this.
Minion Node: The computer that executes requests and assigns tasks. The Kubernetes host controls the nodes.
Nam
Kubernetes is Google open source container choreographer, very suitable for the current hot micro-service architecture, in the Container choreography field, is gradually building a dominant position. This article mainly aims at the Kubernetes service to do some analysis, first briefly introduces the basic concept.
Basic concepts
The Pod:kubernetes minimum Dispatch unit is a set of containers that can be understood as a container.
Replication controller: Replica controller to ensure that the numb
The store provides a unified interface to get data. Including creating new records, modifying records, deleting records, and more about the Store API, see this URL:http://devdocs.io/ember/data/classes/ds.store. in order to demonstrate the use of these methods we combine firebase, about the integration of Firebase and Ember before the article has been introduced, not too much introduction. To prepare for
Outline:
? How to discover services in Kubernetes
? How to discover the services provided by pod
? How to use service discovery Services
? How to use the Kube-dns discovery service
? Kube-dns principle
? Composition
? Domain name format
? Configuration
Note: this share is based on the Kubernetes 1.2 version!Let's start with a simple example.1.How to discover services in KubernetesDiscover the services provided
practical example and talk about how to publish your own Pod for others to use. is a summary of the practice of Cocoapods.Because of the practical operation more, I made a demo for this article, submitted on my github:cocoapodsdemo, interested readers can download it, study the history of submission, or operate it yourself. Friendly reminder: This article is involved in the static library is the simulator production, do not run the real machine.Why t
.oracle.domain) (port=1522)))(Description= (address= (protocol=tcp) (Host=ocm1.oracle.domain) (port=1600)))Services Summary ...Service "POD" has 1 instance (s).Instance "POD", status ready, have 1 handler (s) for the This service ...Service "Pod1″has 1 instance (s).Instance "POD", status UNKNOWN, have 1 handler (s) for the This service ...Service "PODS" has 1 ins
-line program that interacts with the Kubernetes API. Here are some core concepts.ClusterA cluster is a set of nodes that can be physical servers or virtual machines, with the Kubernetes platform installed on top of them. Demonstrate such a cluster. Note that the diagram is designed to emphasize the simplification of core concepts. Here you can see a typical kubernetes architecture diagram.You can see the following components, which represent service and label with special icons:PodContainer (Co
Master.NodeNode's job is to run the container app. node is managed by master and node is responsible for monitoring and reporting on the status of the container and managing the lifecycle of the container according to master's requirements. Node runs on the Linux operating system, either as a physical or virtual machine.In the previous interactive tutorial we created Cluster with only one host host01,It is both Master and Node.PodThe Pod is the small
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