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1. Docker Para Docker Demonio Enlazar A Localhost De
2. Docker On Localhost

Welcome to Docker Desktop for Windows. This page contains information about Docker Desktop for Windows system requirements, download URL, installation instructions, and automatic updates.

By downloading Docker Desktop, you agree to the terms of the Docker Software End User License Agreement and the Docker Data Processing Agreement.

1. Comandos Basicos. Descargar imagen en docker. Para ejecutar he iniciar un contenedor. En el caso de que una imagen no exista, docker la descargara y la ejecutara. $ docker run alpine echo hello $ docker images - debera mostrar las dos imagenes $ docker ps -a - mostrara los contenedores detenidos.
2. Docker only supports Docker Desktop on Windows for those versions of Windows 10 that are still within Microsoft’s servicing timeline. What’s included in the installer The Docker Desktop installation includes Docker Engine, Docker CLI client, Docker Compose, Docker Content Trust, Kubernetes, and Credential Helper.
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System requirements

Nov 04, 2016 Someone proposes as a workaround to access docker-machine ip: instead of localhost. Yes, that works but is not a solution. If I have a server in a Docker container, the docs say it can be accessed like localhost:80, but I have to first find the machine IP and go like `192.168.99.100:80'.

Your Windows machine must meet the following requirements to successfully install Docker Desktop.

WSL 2 backend

• Windows 10 64-bit: Home or Pro 2004 (build 19041) or higher, or Enterprise or Education 1909 (build 18363) or higher.
• Enable the WSL 2 feature on Windows. For detailed instructions, refer to the Microsoft documentation.

• The following hardware prerequisites are required to successfully runWSL 2 on Windows 10:

  • 64-bit processor with Second Level Address Translation (SLAT)
  • 4GB system RAM
  • BIOS-level hardware virtualization support must be enabled in theBIOS settings. For more information, seeVirtualization.
• Download and install the Linux kernel update package.

Hyper-V backend and Windows containers

• Windows 10 64-bit: Pro 2004 (build 19041) or higher, or Enterprise or Education 1909 (build 18363) or higher.

  For Windows 10 Home, see System requirements for WSL 2 backend.

• Hyper-V and Containers Windows features must be enabled.

• The following hardware prerequisites are required to successfully run ClientHyper-V on Windows 10:

  • 64 bit processor with Second Level Address Translation (SLAT)
  • 4GB system RAM
  • BIOS-level hardware virtualization support must be enabled in theBIOS settings. For more information, seeVirtualization.

Note

Docker only supports Docker Desktop on Windows for those versions of Windows 10 that are still within Microsoft’s servicing timeline.

What’s included in the installer

The Docker Desktop installation includes Docker Engine,Docker CLI client, Docker Compose,Docker Content Trust,Kubernetes,and Credential Helper.

Containers and images created with Docker Desktop are shared between alluser accounts on machines where it is installed. This is because all Windowsaccounts use the same VM to build and run containers. Note that it is not possible to share containers and images between user accounts when using the Docker Desktop WSL 2 backend.

Nested virtualization scenarios, such as running Docker Desktop on aVMWare or Parallels instance might work, but there are no guarantees. Formore information, see Running Docker Desktop in nested virtualization scenarios.

About Windows containers

Looking for information on using Windows containers?

• Switch between Windows and Linux containersdescribes how you can toggle between Linux and Windows containers in Docker Desktop and points you to the tutorial mentioned above.
• Getting Started with Windows Containers (Lab)provides a tutorial on how to set up and run Windows containers on Windows 10, Windows Server 2016 and Windows Server 2019. It shows you how to use a MusicStore applicationwith Windows containers.
• Docker Container Platform for Windows articles and blogposts on the Docker website.

Install Docker Desktop on Windows

1. Double-click Docker Desktop Installer.exe to run the installer.

   If you haven’t already downloaded the installer (Docker Desktop Installer.exe), you can get it from Docker Hub. It typically downloads to your Downloads folder, or you can run it from the recent downloads bar at the bottom of your web browser.

2. When prompted, ensure the Enable Hyper-V Windows Features or the Install required Windows components for WSL 2 option is selected on the Configuration page.

3. Follow the instructions on the installation wizard to authorize the installer and proceed with the install.

4. When the installation is successful, click Close to complete the installation process.

5. If your admin account is different to your user account, you must add the user to the docker-users group. Run Computer Management as an administrator and navigate to Local Users and Groups > Groups > docker-users. Right-click to add the user to the group.Log out and log back in for the changes to take effect.

Start Docker Desktop

Docker Desktop does not start automatically after installation. To start Docker Desktop, search for Docker, and select Docker Desktop in the search results.

When the whale icon in the status bar stays steady, Docker Desktop is up-and-running, and is accessible from any terminal window.

If the whale icon is hidden in the Notifications area, click the up arrow on thetaskbar to show it. To learn more, see Docker Settings.

Quick Start Guide

When the initialization is complete, Docker Desktop launches the Quick Start Guide. This tutorial includes a simple exercise to build an example Docker image, run it as a container, push and save the image to Docker Hub.

To run the Quick Start Guide on demand, right-click the Docker icon in the Notifications area (or System tray) to open the Docker Desktop menu and then select Quick Start Guide.

Congratulations! You are now successfully running Docker Desktop on Windows.

Updates

Starting with Docker Desktop 3.0.0, updates to Docker Desktop will be available as delta updates from the previous version. When an update is available, Docker Desktop displays an icon to indicate the availability of a newer version. You can choose when to start the download and installation process.

To encourage developers to stay up to date, Docker Desktop displays a reminder two weeks after an update becomes available. You can dismiss this daily reminder by clicking Snooze. You can skip an update when a reminder appears by clicking the Skip this update option.

Click Download update When you are ready to download the update. This downloads the update in the background. After downloading the update, click Update and restart from the Docker menu. This installs the latest update and restarts Docker Desktop for the changes to take effect.

Uninstall Docker Desktop

To uninstall Docker Desktop from your Windows machine:

1. From the Windows Start menu, select Settings > Apps > Apps & features.
2. Select Docker Desktop from the Apps & features list and then select Uninstall.
3. Click Uninstall to confirm your selection.

Important

Uninstalling Docker Desktop destroys Docker containers, images, volumes, andother Docker related data local to the machine, and removes the files generatedby the application. Refer to the back up and restore datasection to learn how to preserve important data before uninstalling.

Where to go next

• Getting started introduces Docker Desktop for Windows.
• Get started with Docker is a tutorial that teaches you how todeploy a multi-service stack.
• Troubleshooting describes common problems, workarounds, andhow to get support.
• FAQs provide answers to frequently asked questions.
• Release notes lists component updates, new features, and improvements associated with Docker Desktop releases.
• Back up and restore data provides instructions on backing up and restoring data related to Docker.

Syntax

• docker stats [OPTIONS] [CONTAINER..]
• docker logs [OPTIONS] CONTAINER
• docker top [OPTIONS] CONTAINER [ps OPTIONS]

Entering in a running container

To execute operations in a container, use the docker exec command. Sometimes this is called 'entering the container' as all commands are executed inside the container.

or

And now you have a shell in your running container. For example, list files in a directory and then leave the container:

You can use the -u flag to enter the container with a specific user, e.g. uid=1013, gid=1023.

The uid and gid does not have to exist in the container but the command can result in errors.If you want to launch a container and immediately enter inside in order to check something, you can do

docker run..; docker exec -it $(docker ps -lq) bash

the command docker ps -lq outputs only the id of the last (the l in -lq) container started. (this supposes you have bash as interpreter available in your container, you may have sh or zsh or any other)

Monitoring resource usage

Inspecting system resource usage is an efficient way to find misbehaving applications. This example is an equivalent of the traditional top command for containers:

To follow the stats of specific containers, list them on the command line:

Docker stats displays the following information:

By default docker stats displays the id of the containers, and this is not very helpful, if your prefer to display the names of the container, just do

Docker Para Docker Demonio Enlazar A Localhost De

docker stats $(docker ps --format '{{.Names}}')

Monitoring processes in a container

Inspecting system resource usage is an efficient way to narrow down a problem on a live running application. This example is an equivalent of the traditional ps command for containers.

To filter of format the output, add ps options on the command line:

Or, to get the list of processes running as root, which is a potentially harmful practice:

The docker top command proves especially useful when troubleshooting minimalistic containers without a shell or the ps command.

Attach to a running container

'Attaching to a container' is the act of starting a terminal session within the context that the container (and any programs therein) is running. This is primarily used for debugging purposes, but may also be needed if specific data needs to be passed to programs running within the container.

The attach command is utilized to do this. It has this syntax:

<container> can be either the container id or the container name. For instance:

Or:

You may need to sudo the above commands, depending on your user and how docker is set up.

Note: Attach only allows a single shell session to be attached to a container at a time.

Warning: all keyboard input will be forwarded to the container. Hitting Ctrl-c will kill your container.

To detach from an attached container, successively hit Ctrl-p then Ctrl-q

To attach multiple shell sessions to a container, or simply as an alternative, you can use exec. Using the container id:

Using the container's name:

Docker On Localhost

exec will run a program within a container, in this case /bin/bash (a shell, presumably one the container has). -i indicates an interactive session, while -t allocates a pseudo-TTY.

Note: Unlike attach, hitting Ctrl-c will only terminate the exec'd command when running interactively.

Printing the logs

Following the logs is the less intrusive way to debug a live running application. This example reproduces the behavior of the traditional tail -f some-application.log on container 7786807d8084.

This command basically shows the standard output of the container process (the process with pid 1).

If your logs do not natively include timestamping, you may add the --timestamps flag.

It is possible to look at the logs of a stopped container, either Kingdom come deliverance console commands health.

• start the failing container with docker run .. ; docker logs $(docker ps -lq)

• find the container id or name with

docker ps -a

and then

docker logs container-id or

docker logs containername

as it is possible to look at the logs of a stopped container

Docker container process debugging

Docker is just a fancy way to run a process, not a virtual machine. Therefore, debugging a process 'in a container' is also possible 'on the host' by simply examining the running container process as a user with the appropriate permissions to inspect those processes on the host (e.g. root). For example, it's possible to list every 'container process' on the host by running a simple ps as root:

Any currently running Docker containers will be listed in the output.

This can be useful during application development for debugging a process running in a container. As a user with appropriate permissions, typical debugging utilities can be used on the container process, such as strace, ltrace, gdb, etc.