Docker is useless and unnecessary for small and medium-sized enterprises to build Paas. It is a little less useful to use it as a personal sandbox, I personally think that docker can be used as a standard development, testing, and production environment for small and medium-sized enterprises.I drew a simple figure:Docker occupies a small amount of resources. It is more than enough to deploy 100 containers o
Docker Quick Start series (5): basic network configuration and communication during storage, docker Quick StartIntroduction
Two major functional modules that are essential for a web service to run: business processing, data services, and large web services require more components, which usually requires multiple containers, however, we also need to allow network communication between these containers and co
Docker boot2docker fails to be started after Docker is installed on Mac. dockerboot2docker
After installing Docker on Mac, you must start boot2docker to load VM before using the docker command. However, an error occurs when I start boot2docker after installing boot2docker:
Waiting for VM and
Development Tool docker Usage Details, development tool docker detailsImages
Install domestic Images
Pull Image
Docker pull centos: latest
With the image, we can start and run a container Based on the image.Container docker commit
You know, when we run a container (if we do not use volumes), any file modifications
http://hongge.blog.51cto.com/ Using Supervisor to manage processes The Docker container opens a single process at startup, such as an SSH or Apache daemon service. However, we often need to open multiple services on a machine, this can be many ways, the simplest is to put a number of startup commands in a startup script, start the time to start the script directly. Example: Docker run–d mirroring/run.sh The
This way the Ubuntu installation process, first of all the official website documents
If you haven ' t already do so, log into your Ubuntu instance.
Open a terminal window.
ADD the new gpg key.58118E89F3A912897C070ADBF76221572C52609D
Open the /etc/apt/sources.list.d/docker.list file in your favorite editor.If the file doesn ' t exist, create it.
Remove any existing entries.
Add an entry for your Ubuntu operating system.The possible entries is:# Ubuntu Precisedeb https://apt.dockerp
After the front upload files to the server, the server returned to the foreground of the file list in Chinese garbled, all the Chinese file name into? , the English file name is displayed normally.
The problem is positioned to find that the Multipartfile class of the background code has this exception when executing the Transterto method, but Multipartresolver and encodingfilter in the configuration file set are already UTF-8. Excludes code exceptions. KUBECTL exec enters into the
Docker mount the host directory, access to the appropriate files Premission denied permission access issues,
[Root@localhost soft]# Docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
Docker.io/centos 7.2.1511 686672a1d0cc 5 weeks ago
//mount the/soft directory on the host to Docker directory,
This paper mainly records the use of Docker/nvidia-docker installation depth learning picture text recognition, development of the operating environment.
In the image text recognition, need to use CTPN and CRNN, the server is ubuntu16, but the above two frameworks (GitHub existing) can only run on UBUNTU14. Considering, publishing and other issues, decided to use Docker
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:/
This article describes the use of Docker-machine to build a Docker swarm cluster; Docker swarm is the official Docker-built container cluster orchestration tool, and container orchestration allows you to use a cluster like a machine, The container you are running may run on any node in the container;First, steal a
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
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