docker container vs vm

In addition to Overlay,docker, another Driver:macvlan has been developed to support cross-host container networks.The Macvlan itself is the Linxu kernel module, which allows multiple MAC addresses to be configured on the same physical network card, that is, multiple interface, each of which can be configured with its own IP. Macvlan is essentially a network card virtualization technology, it's not surprisin

Preface Everyone uses Docker to download images from the container repository, but this process may depend on the bandwidth of the network, so if you migrate a downloaded image to another environment, or how to implement a backup or restore of a docker container, or migrate, let's talk about it a bit. ----------------

Container and container communicate with each other. The official name is linking containers together! The most common is to run a web iner and a DB container to link the Web container to the DB container; A network channel (BRIDGE) is established between two containers thr

How to change the default bridge DOCKER0 connection for a Docker container The Docker0 bridge is actually a common bridge in Linux, which is more limited in its ability to perform complex operations on the container in the previous blog post. (1) summarizes how to change the default bridge connection for the Docker

Tags: Kubernetes Docker container TutorialThis section shows how to provide persistent storage for a MySQL database in the following steps: Create PV and PVC. Deploy MySQL. Add data to MySQL. Simulating node downtime, Kubernetes automatically migrates MySQL to other nodes. Verify data consistency. First create the PV and PVC, configured as follows:Mysql-pv.ymlMysql-pvc.yml create MYSQL-PV

Objective: To create an Apache-hosted image and launch 5 Apache containers from within a Linux external service1. Installing ApacheDocker run-t-I--name=qxy_apache centosyuminstall httpdexit2. Make imageDocker commit Qxy_apache Qxy_apache:v1. 0 [email protected]-1 ~]# Docker imagesrepository TAG IMAGE ID CREATED VIRTUAL sizeqxy_apache v1. 0 9b6f8b6054b5 seconds ago 19

The following errors are created in the container times[email protected] sample]# Docker build-t Ovcer/nginx.Sending build context to Docker daemon2015/01/07 06:43:51 Post http:///var/run/docker.sock/v1.15/build?rm=1t=ovcer%2Fnginx:dial unix/var/run/ Docker.sock:no such file or directoryWorkaround:[[email protected] sample]# Systemctl start DockerThis article is

Docker provides the rest API for creating containersHttp://192.168.150.6:8888/containers/create?name=demo-mysqlDocker MySQL container parameters, send a POST request to Docker via Restclient{"Hostname": "", "Domainname": "", "User": "", "Attachstdin": false, "attachstdout": True, "Attachstderr": True, "Tty": False, "Openstdin": false, "stdinonce": false, "ENV": [

Docker officially provides a Web UI interface to manage containers and mirrors, called: ShipyardModify the configuration file firstVim/etc/sysconfig/dockerAdd to:other_args= "-H tcp://0.0.0.0:235-h unix:///var/run/docker.sock"Note: Centos7 uses options="-H tcp://0.0.0.0:235-h unix:///var/run/docker.sock"Restart:/etc/init.d/docker restartPerform:To get a/data data volume:Docker run-ti-d--restart=always--name

(1) View the container ID (container ID) Docker ps-a (2) Enter into the container inside Docker exec-it 6b654059476e/bin/bash ps:-it parameter is the ID of the container (3) into the MySQL database successfully mysql-uroot-p

A recent project has a launch container that automatically executes a script to launch an app, and finds that the container exits automatically when the script finishes executing. problem Analysis a Docker container can manage only one process at a time, and when the process exits, the

1. Docker run-it Ubuntu2. After entering the container, install the SSH service:sudo apt-get install Openssh-serverIt is possible to configure the software source before installing: sudo apt-get update3. Start the SSH service:/usr/sbin/sshd4. Generate public key and key for login without password:Ssh-keygenAll the way to the return, will be generated in the ~/.ssh/folder: Id_rsa, Id_rsa.pubTransfer id_rsa.p

In the previous section we prepared the Macvlan experimental environment, and today we create Macvlan network Mac_net1 in Host1 and host2: Note: also execute the same command in Host2. ①NBSP; -d Macvlan NBSP; specifies driver as Macvlan. ②macvlan Network is the local network, in order to ensure that cross-host communication, users need to manage their own IP subnet.③ Unlike other networks, Docker does not create a gateway for Macvlan, where the

Click to have a surprise With the stack YAML file defined, the application can be deployed through the Docker stack deploy command. Docker will create the various resources according to the YAML content. In order to not duplicate the name, all resources will be prefixed with the stack names, and we are here wpstack_*. After deployment is complete, you can view the status of various resources throug

attribute access control (ABAC), Role access control (RBAC) authentication authorization policy. Basic Object Concepts Basic objects: nPod Pod is the smallest deployment unit, a pod consisting of one or more containers, in which containers share storage and network, running on the same Docker host. nService Service An application services abstraction that defines the pod logic set and the strategy for accessing this pod collection. Service Agent P

current cluster is to execute kubeadm reset it on each node . You can then initialize the cluster as we did in the "Initializing Master" section of the "Deploying Kubernetes Cluster" chapter earlier. Kubeadm Init--apiserver-advertise-address 192.168.56.105--pod-network-cidr=10.244.0.0/16then follow the documentation https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/ install Canal. The documentation lists the installation methods for various network scenarios:Execute the follow

Host: Xubuntu 15.04 + Docker Enter terminal, sudo-i, switch root, input docker-d Open another terminal, switch root, enter the Docker search Ubuntu, probably the following result: NAME DESCRIPTION STARS Official automatedUbuntu Ubuntu is a debian-based Linux operating s ... 2306 [OK]Ubuntu-upstart Upstart is a event-based replacement for ... [OK]Torusw

from Eth2.10, discovers that the destination address is 172.16.20.11, and looks at its own routing table:The packet is then forwarded from the eth2.20.③ through the ARP record information, the router can know 172.16.20.11 on the host2, so the data packets sent to HOST2.④HOST2 data is packets to BBOX4 based on destination address and VLAN information.The connectivity and isolation of the Macvlan network relies entirely on VLANs, IP subnet, and routing, and D