docker for beginners

Reproduced in the process, the picture is missing, the code shows confusion. For better learning content, please visit the original version: https://www.missshi.cn/api/view/blog/5a63285f0a745f6335000008 Ps: Initial access due to the large JS file, please wait patiently (5s or so) The Docker itself provides powerful API functionality. We can manage the Docker service by accessing the

Install docker and ubuntu Docker Environment: Centos 6.5 64-bit If the system is installed by default, the centos kernel is [Root @ localhost ~] # Uname-Linux localhost. localdomain 2.6.32-431. el6.x86 _ 64 Docker supports 64-bit kernel for versions 3. xx and later. 1. First, upgrade your own kernel level 2.6-"3.xx Steps: [Root @ localhost ~] # Rpm-ivh http:/

In front of our experimental environment there is only one Docker host, and all the containers are running on this host. However, in a real environment there will be multiple hosts, where containers are started, run, stopped, and destroyed, and related containers communicate with each other over the network, regardless of whether they are located in the same host.How do we manage this multi-host environment effectively?The first problem we faced was i

A wild full-stack engineer configures the scheduled task crontab (DaoCloud + Docker + Laravel5) in a Docker container and prefers to study various new technologies. Follow Now Recently, the project involves the function of a scheduled task. so I went to study how to use crontab over the past few days and successfully enabled the function on my computer according to relevant online tutorials.Add crontab

1. Select the base imageDocker Pull Tomcat:7.0-jre82. Generate an HTTPS certificateKeytool-genkey-alias Tomcat-keyalg Rsa-keystore Tomcat.keystore[Email protected]:~/ssl# lsTomcat.keystore3. Launch the Tomcat container and import the certificate[Email protected]:/usr/local/tomcat# ls/tmp/Tomcat.keystore[Email protected]:/usr/local/tomcat# mkdir Keys[Email protected]:/usr/local/tomcat# cp/tmp/tomcat.keystore keys/[Email protected]:/usr/local/tomcat# ls keys/Tomcat.keystore4. CommitDo not exit con

1, from the container inside copy files to host. Answer: Execute the following command in the host Docker CP container name: The path of the file to be copied inside the container to be copied to the appropriate path of the host Example: Assuming that the container is named Testtomcat, the file to be copied from the container is:/usr/local/tomcat/webapps/test/js/test.js, now to move test.js from the container Copy to the host's/opt path, so the comm

Docker CP: Used for data copies between containers and hosts. Grammar Docker CP [OPTIONS] Container:src_path dest_path|- Docker CP [OPTIONS] src_path|-Container:dest_path Options Description: -L: Keep a link instance from the source target Copy the host./rs-mapreduce directory to the/home/cloudera directory of the container 30026605dcfe.

When using the Dockerfile build image, it is sometimes found that the content sent to daemon is too largesendingbuildcontexttodockerdaemon 4.358gbstep0:fromxxx.xxx.com/centos:7--->218081f3bcdcstep1 :RUNmkdir-p/data/mysql/base--->Usingcache---> ac4aa04a93a1Step2:RUNaddusermysql--->Usingcache --->f30c90e0e589Step3:ADDbase/data/mysql/base---> 3666ada5715cremovingintermediatecontainerd65c5abdfe5cstep4:entrypoint /data/mysql/base/entrypoint.sh--->Runningin3be4e22baff7---> a73907b2fbd5removingintermed

1. Generating a Docker image for an ASP. NET Core ApplicationDownload this case project: Https://github.com/dotnet/dotnet-docker/tree/master/samples/aspnetappWhen the download is complete, generate a mirror named Aspnetapp image for this project.Docker build-t Aspnetapp.In order to make a difference I created a a.html file in wwwroot after the Aspnetapp image was generated, and another image named Webappa w

Today in the start of a Docker run Nginx instance, when the directory is mounted, access to the static directory, insufficient permissions The commands executed are: Docker run --name my-nginx -d-p 80:80 --restart=always -v/cloud/nginx/webroot:/usr/share/nginx/ HTML:RW -v/cloud/nginx/log:/var/log/nginx -v/cloud/nginx/config/nginx.conf:/etc/nginx/nginx.conf:ro - D Nginx Description 1. Where/cloud

Reproduced in the process, the picture is missing, the code shows confusion. For better learning content, please visit the original version: https://www.missshi.cn/api/view/blog/5a6328110a745f6335000006 Ps: Initial access due to the large JS file, please wait patiently (5s or so) in the previous article, we briefly introduced some simple practices of the Docker. Next, we'll talk about similar content in this article, but the services deployed with

Why serve something port mapping. When you start the container, if you do not configure port mappings between the host machine and the virtual machine, the external program cannot access the virtual machine because there is no port. What is the directive for port mapping. Docker command: Docker run-p ip:hostPort:containerPort Redis Use the-p parameter to map the host's port to the virtual machine.IP rep

Java entry: This is a must-read for beginners. For more information, see Linux general technology-Linux programming and kernel. 1. jdk is j2se, and jdk 1.1.8 will be changed to j2se later, : Http://java.sun.com/j2se/downloads.html 2. jre is a java Runtime Environment (jre is included after jdk1.3) and does not need to be downloaded separately. 3. Set Environment Variables After jdk is installed, you must configure environment variables. My computer->