Programmer Group

Server node: k8s-master01192.168.1.50k8s-node01192.168.1.51k8s-node02192.168.1.52 1, To install docker, all servers need to be installed Install the dependent libraries of Docker. yum install -y yum-utils device-mapper-persistent-data lvm2 Add the software source information of Alibaba cloud Docker CE. yum-config-manager --add-repo http: ...

pod communication and service discovery In a world without k8s, the system administrator needs to specify the exact ip address or host name of the service in the client configuration file to configure the client application, but it is not necessary in k8s. The application in k8s runs in pod, and the high availability design of pod makes it imp ...

View pools Create a pool containing 64 PGs and 64 PGPS       [root@node-1 ~]# ceph osd pool create ceph-demo 64  64 pool 'ceph-demo' created [root@node-1 ~]# ceph osd lspools 1 ceph-demo View pg and pgp [root@node-1 ~]# ceph osd pool get ceph-demo pg_num pg_num: 64 [root@node-1 ~]# ceph osd pool get ceph-demo pg ...

1 Introduction to kubernetes 1.1 kubernetes function Automatic packing Based on the resource configuration requirements of the application running environment, the application container is automatically deployed Self healing (self healing) When the container fails, the container is restartedWhen there is a problem with the deployed Node, t ...

Recently, I became Alibaba cloud's Promotion Ambassador and brought 200 readers together to receive Alibaba cloud's servers for free. Everyone said "really fragrant". PS: if you want to participate in receiving the free server, you can add me v: Hello WBM, and I'll send you the operation process. In fact, there are still many proble ...

ETCD introduction ETCD   It is a distributed and consistent KV storage system for shared configuration and service discovery. Etcd is an open source project initiated by CoreOS, and the license agreement is Apache. ETCD usage scenario ETCD has many usage scenarios, including but not limited to: configuration managementService registere ...

Redis Cluster provides a method to run redis installation, in which data   Automatically partition between multiple redis nodes. Redis Cluster also provides a certain degree of availability during partitioning, which is actually the ability to continue operation when some nodes fail or fail to communicate. However, if a major failure occur ...

Environmental preparation First, you need to have a complete set of clusters [root@master ~]# kubectl get nodes -o wide NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME master Ready master 114d v1.21.0 192.168.59.142 <none> ...

install Prepare k8s environment in advance and download Istio installation package , I use version 1.6.14 here, and the k8s version is v1.19.8 tar zxvf istio-1.6.14-linux-amd64.tar.gz cd istio-1.6.14/ cp bin/istioctl /usr/bin View a list of profiles for different installation modes istioctl profile list You can print the contents of the confi ...

Reference: Series: Deploying ASP.NET Core applications to Kubernetes catalogueNodePod and DeploymentUse Service to forward requests to the specified pod within the clusterLoad balancing external requests with IngressSummary Book connection kubernetes practice record - building k8s clusters on ubuntu This time, one will be deployed on the kube ...