Kubernetes Network Model
A fundamental principle of the Kubernetes network model design is that each pod has a separate IP address, and that all pods are in a flat network space that can be directly connected. So whether or not they run in the same node (host), they are required to be accessed directly from each other's IP. The reason for this principle is that the user does not need to consider ho
One. Container:1. A container is a way to run one or a set of processes, isolating these processes from other processes on the host2. Containers are similar to virtual machines, but different from virtual machinesContainer virtual machineKernel calls the host's kernel per virtual machine oneStart speed seconds-level minuteResources use only the processes in the container occupy the entire virtual machineTwo. What is Kubernets?1. is a container organizer, or container manager:Not only manages con
Heapster is a container cluster monitoring and performance analysis tool that naturally supports kubernetes and CoreOS.Kubernetes has a well-known surveillance agent-cadvisor. The cadvisor is run on each kubernetes node, and it collects monitoring data (cpu,memory,filesystem,network,uptime) for both native and container.In the newer version, K8S has integrated the Cadvisor functionality into the Kubelet com
What am I going to write?"Understand each line of code-kubernetes" will contain k8s the entire project source code analysis, considering the threshold problem, before starting to analyze the k8s I will be in some of the less difficult Golang open source projects to help you improve Golang coding skills And then through the k8s related to some of the projects, to open up obstacles to k8s learning some of the major obstacles; the final focus on fire, wi
The previous article describes the use of Traefik for service publishing in Kubernetes 1.5.2 cluster environments. Traefik is deployed in Daemonset mode, and the connection Api-server is the HTTP protocol, and RBAC is not configured. This article describes the deployment of Traefik for service publishing in the K8s 1.9 release using the deployment method.Before you begin, you need to know what RBAC is. RBAC (role-based access control) using the Rbac.a
Tags: Host file Create request Val SSM LOB environment ant followThis article describes the deployment of MySQL master-slave cluster in a kubernetes environment, with data persistence using NFS. I. Introduction to the EnvironmentMySQL Version: 5.7 Mysql Master node:Host Name: VM1IP Address: 192.168.115.5/24 Mysql slave node:Host Name: VM2IP Address: 192.168.115.6/24 NFS Node:Host Name: VM2IP Address: 192.168.115.6/24Shared Directories:/home/mysql_mast
share the main purpose of this article,is how to use kubernetes to customize the type, such as sparkapplication, to use scripts to generate the code of the responseThese codes are specifically for custom type Sparkapplication Object Services.0. The final effect is as follows:1. Test Environment DescriptionVMware + Centos 72, we need to write the document, I test need 3 (may not test enough)Doc.goRegister.goTypes.go3. Create go project, use K8s's chara
Brief introduction:Docker: An open-source application container engine that can create a lightweight, portable, self-sufficient container for your application.Kubernetes: The Docker container Cluster Management system, which is open source by Google, provides the functions of resource scheduling, deployment operation, service discovery, capacity scaling and so on for containerized applications.ETCD: A highly available key-value storage system developed and maintained by CoreOS, primarily for sha
Kubernetes about the service exposure is mainly through the Nodeport way, through the binding minion host of a port, then the pod request forwarding and load balancing, but this way the defect is
The service may have many, if each is bound to a node host port, the host needs to open the perimeter of a heap of ports to make services calls, management confusion
Cannot apply firewall rules required by many companies
The ideal way is thr
The next one is to deploy and expand the Kubernetes cluster based on rancher7. Configuring Redis with ConfigmapHttps://github.com/kubernetes/kubernetes.github.io/blob/master/docs/user-guide/configmap/redis/redis-configRedis-configMaxMemory 2MB Maxmemory-policy Allkeys-lru# kubectl Create Configmap example-redis-config--from-file=./redis-config# Kubectl Get configmap example-redis-config-o yamlapiversion:v1d
OverviewKubernetes is a powerful container orchestration tool that enables users to reliably deploy and run containerized applications on a scalable system. Within the container area, k8s has undoubtedly become a community standard for container orchestration and management, and even Docker has announced support for K8s. The fighting in the field of container orchestration has been turned around, and the dust settles, and k8s has been unanimously endorsed by the players including Google, Huawei,
Teaches you how to accelerate the deployment of k8s in China and implement custom settings that have a k8s image of the warehouse with its namespace.OverviewKubernetes is a powerful container orchestration tool that enables users to reliably deploy and run containerized applications on a scalable system. Within the container area, k8s has undoubtedly become a community standard for container orchestration and management, and even Docker has announced support for K8s. The fighting in the field of
certification aspects of processing, certification is actually entrusted to K8s Apiserver responsible, dashboard just based on user login information generated Authinfo object, encrypted as token carried in the browser, that is Jwe protocol, Jwe Sub-package is the implementation of the JWE protocol, where Keyholder (Rsakeyholder concrete Class) manages the key pair used by Jwe and stores the secret key in Kubernetes-dashboard-key-holder Secrets objec
The previous blog post describes the deployment of the K8s cluster, which focuses on deploying Kube-dns and dashboard.Environment descriptionNode-1 (Master): 10.0.0.1Node-2:10.0.0.2Node-3:10.0.0.3The cluster uses a binary installation, and the Flannel network plug-in is deployed.Kube-dns
When doing the following, you must have already deployed the k8s cluster, if you do not have such a cluster, please refer to my previous blog post.
1, find the corresponding Yaml file on the offici
First of all, we need to understand the function of kubernetes, in short, it provides a container orchestration technology, to provide users with a container-based service rapid deployment, upgrade, rollback, access control, elastic scaling and other scheduling functions, so that users in the development, testing, production environment can achieve agile development, The purpose of fast and reliable delivery.Second, you need to understand the kubernet
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 und
mountpath:/logs
volumes:
-name:app-logs Emptudir
: {}
View Log kubectl logs 5. Configuration management of Pod
The Kubernetes v1.2 version provides a unified cluster configuration management solution –configmap. 5.1. Configmap: Configuration management for container applications
Usage Scenario: Live as an environment variable within a container. Set startup parameters for the container startup command (set to environment variable). Mou
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