kubernetes configmap

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Configmap Description of Kubernetes

In this blog post, let's say a question about customizing the configuration in the pod of kubernetes.We know that in almost all application development, configuration file changes are involved, such as in the Web program, the need to connect to the database, cache, and even queues. And one of our applications starts with writing the first line of code, going through the development environment, the test environment, the pre-release environment only to the final online environment. Each environme

Configmap Description of Kubernetes

In this blog post, let's say a question about customizing the configuration in the pod of kubernetes.We know that in almost all application development, configuration file changes are involved, such as in the Web program, the need to connect to the database, cache, and even queues. And one of our applications starts with writing the first line of code, going through the development environment, the test environment, the pre-release environment only to the final online environment. Each environme

Kubernetes Configmap Detailed

Configmap Description of KubernetesIn this blog post, let's say a question about customizing the configuration in the pod of kubernetes.We know that in almost all application development, configuration file changes are involved, such as in the Web program, the need to connect to the database, cache, and even queues. And one of our applications starts with writing the first line of code, going through the development environment, the test environment,

Kubernetes management of MySQL application configuration file in container with Configmap

Understanding of the role of 1.configmapWhat role does the Configmap play?For example, enable a MySQL container. In general, the MySQL container is important for two parts, one for storing data and the other for configuration file MY.CNF.As previously tested, the storage data can be decoupled with the PV PVC implementation and the separation of the containers.The configuration file can also be decoupled from the container, which means that the MySQL c

Use Configmap Management configuration-5 minutes a day to play Docker container Technology (159)

learned how to pass configuration information to the Pod. Use Secret If the information requires encryption, or use Configmap if it is a generic configuration information. Secret and Configmap support four methods of definition. Pod can choose Volume mode or environment variable mode when using them, but only the Volume mode supports dynamic update. In the next section, we will begin to learn about the Hel

Kubernetes's pod detailed

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. S

Kubernetes Data Persistence Scheme

Before we begin to introduce k8s persistent storage, it is important to understand the mechanisms and uses of k8s Emptydir and Hostpath, Configmap, and secret.1, EmptydirEmptydir is an empty directory, and his life cycle is exactly the same as the pod he belongs to, and Emptydir's main role is to share the files produced during the work process between different containers within the same pod. If the pod is configured with the Emptydir type volume, th

How to run a Spark cluster in a kubernetes environment

With such a large amount of data, there may be thousands of machines behind it, unable to manually monitor the state of the machine. Therefore, this article introduces the use of the Kubernetes container management tool and, through a simple example, tells you how to build a Spark cluster. Preparation Phase 1. You need to have a running kubernetes cluster and use KUBECTL to configure access permissions for

Dockone WeChat Share (108): CI workflows based on Jenkins and Kubernetes

identity placeholder, and the specific template data content, or through the CI process Jenkins to obtain, Either read with a specific configuration file or get it from a specific input parameter; At the same time, the content of the template data will be set to the system as kubernetes when actually deployed, so the content of the data can also be used in the environment variable or startup command by Kubernete

Running high-availability WordPress and MySQL on kubernetes

-slave configuration as needed.We use persistent volumes to prevent data in the database from being limited to any particular pods in the cluster. This prevents the database from losing data in the event that the MySQL host pod is lost, and when the host pod is lost, it can reconnect to the attached machine with xtrabackup and copy the data from the attached machine to the host. The replication of MySQL is responsible for host-secondary replication, while Xtrabackup is responsible for secondary-

Kubeadm Installing the Kubernetes cluster

disk:"/etc/kubernetes/kubelet.conf "[Kubeconfig] Wrote Kubeconfig file to disk: "/etc/kubernetes/controller-manager.conf" [Kubeconfig] wrote Kubeconfig file to disk: "/etc /kubernetes/scheduler.conf "[Controlplane] wrote Static Pod manifest for component kube-apiserver to"/etc/kubernetes/ Manifests/kube-apiserver.yaml

Kubernetes Landing | Not holding, foreign companies to kubernetes migration practices

Guide:Kubernetes a ride on the dust to open, then the enterprise should start to kubernetes migration? Under what circumstances do you really accept it? Some of the technology frontier companies first-step practice is probably the most persuasive and reference value. This article is a good reference.1Kubernetes now rage, it is part of a massive cloud-native movement. All major cloud providers use it as a solution for deploying cloud-native application

Kubernetes Traefik Configuring HTTPS Practice Action Records

Configmap, save Traefik's configurationThe Traefik here Configure the rules to rewrite all HTTP requests to HTTPS and configure the appropriate certificate location:[[emailprotected] config]# cat traefik.tomldefaultEntryPoints = ["http","https"][entryPoints]? [entryPoints.http]? address = ":80"? ? [entryPoints.http.redirect]? ? entryPoint = "https"? [entryPoints.https]? address = ":443"? ? [entryPoints.https.tls]? ? ? [[entryPoints.https.tls.certific

Kubernetes Learning Path (11) resource list definition

First, Kubernetes common resourcesThe following is an object in Kubernetes, which can be configured as an API type in a Yaml file. Category Name Workload-based resource objects Pod replicaset replicationcontroller deployments statefulsets daemonset Job cronjob Service Discovery and load balancing Service Ingress Configuration and St

Kubernetes Traefik Configuring HTTPS Practice Action Records

. Create Configmap, save Traefik's configurationThe Traefik here Configure the rules to rewrite all HTTP requests to HTTPS and configure the appropriate certificate location:[[emailprotected] config]# cat traefik.tomldefaultEntryPoints = ["http","https"][entryPoints]? [entryPoints.http]? address = ":80"? ? [entryPoints.http.redirect]? ? entryPoint = "https"? [entryPoints.https]? address = ":443"? ? [entryPoints.https.tls]? ? ? [[entryPoints.https.tls.

Kubernetes Traefik Configuring HTTPS Practice Action Records

, build a certificate to play. In addition to the certificate, the Web software (here is Traefik) is required to turn on SSL support and use the certificate we have established.4. Configure the CertificateThe lab environment uses the existing certificate with the K8s cluster certificate.[Email protected] ~]# cd/etc/kubernetes/ssl/[[email protected] ssl]# lsADMIN.CSR??? Apiserver-key.pem? Ca.srl??????????? KUBERNETES2-WORKER.CSR??? Kubernetes3-worker-k

Pure hand-built kubernetes (k8s) 1.9 cluster-(iii) certification authority and service discovery

Concept GroomingIn order to solve the above-mentioned problem, Kubernetes does not need to find a way, after all, is the network security level of the problem, every service will encounter problems, the industry has a mature solution to solve. Here we look at industry scenarios and related concepts. Symmetric encryption/Asymmetric encryptionThese two concepts belong to cryptography, which is not easy to understand for the students who have n

Kubernetes v1.10----Deployment Kubernetes-dashboard v1.83

Kubernetes v1.10----Deployment Kubernetes-dashboard v1.831. Download Kubernetes-dashboard yaml file#因为文件中的image指定的是谷歌, so you cannot deploy directly using applywget Https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

Kubeadm Source Analysis (kubernetes offline installation package, three-step installation)

This is a creation in Article, where the information may have evolved or changed. K8s Offline installation package Three-step installation, simple to unbelievable Kubeadm Source Code Analysis To say the truth, Kubeadm code is sincere, the quality is not very high. A few key points to first talk about some of the core things Kubeadm did: Kubeadm Generate certificate in/etc/kubernetes/pki directory Kubeadm generate a static pod Yaml configurati

Kubernetes Cluster Monitoring Scheme

: ["get", "list", "watch"]- nonResourceURLs: ["/metrics"] verbs: ["get"]---apiVersion: v1kind: ServiceAccountmetadata: name: prometheus namespace: kube-system---apiVersion: rbac.authorization.k8s.io/v1kind: ClusterRoleBindingmetadata: name: prometheusroleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: prometheussubjects:- kind: ServiceAccount name: prometheus namespace: kube-system2. Managing configuration files for Prometheus components in

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