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5/18/2021admin

Slideshare App For Mac
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Estimated reading time: 4 minutes

Docker Desktop is only compatible with Mac systems that have a CPU that supports the Hypervisor framework. Most Macs built in 2010 and later support it,as described in the Apple Hypervisor Framework documentation about supported hardware. Install and run Docker Desktop on Mac. Double-click Docker.dmg to open the installer, then drag the Docker icon to the Applications folder. Double-click Docker.app in the Applications folder to start Docker. (In the example below, the Applications folder is in “grid” view mode.). Play Videos Music on PC/Mac and Other Devices The guide on how to play videos and music on Mac/PC and other devices. Most Popular Articles HOT. Free Fast HD Video Player for Windows 10/Mac Choose the cover-all HD video player to play 8K full HD, 5K 4K UHD, 1080p/720p HD videos. LinkedIn SlideShare is the world’s largest community for sharing presentations and professional content, with 60 million unique visitors a month and more than 15 million uploads Download the LinkedIn SlideShare app to boost your knowledge - anytime, anywhere Our website: www.slideshare.net Our blog: blog.slideshare.net.

Docker Desktop for Mac is the Community version of Docker for Mac.You can download Docker Desktop for Mac from Docker Hub.

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

System requirements

Your Mac must meet the following requirements to successfully install Docker Desktop:

Mac hardware must be a 2010 or a newer model with an Intel processor, with Intel’s hardware support for memory management unit (MMU) virtualization, including Extended Page Tables (EPT) and Unrestricted Mode. You can check to see if your machine has this support by running the following command in a terminal: sysctl kern.hv_support
If your Mac supports the Hypervisor framework, the command prints kern.hv_support: 1.
macOS must be version 10.14 or newer. That is, Mojave, Catalina, or Big Sur. We recommend upgrading to the latest version of macOS.
If you experience any issues after upgrading your macOS to version 10.15, you must install the latest version of Docker Desktop to be compatible with this version of macOS.
Note
Docker supports Docker Desktop on the most recent versions of macOS. That is, the current release of macOS and the previous two releases. As new major versions of macOS are made generally available, Docker stops supporting the oldest version and supports the newest version of macOS (in addition to the previous two releases). Docker Desktop currently supports macOS Mojave, macOS Catalina, and macOS Big Sur.
At least 4 GB of RAM.
VirtualBox prior to version 4.3.30 must not be installed as it is not compatible with Docker Desktop.

What’s included in the installer

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

Install and run Docker Desktop on Mac

Double-click Docker.dmg to open the installer, then drag the Docker icon to the Applications folder.
Double-click Docker.app in the Applications folder to start Docker. (In the example below, the Applications folder is in “grid” view mode.)
The Docker menu in the top status bar indicates that Docker Desktop is running, and accessible from a terminal.
If you’ve just installed the app, Docker Desktop launches the onboarding tutorial. The tutorial includes a simple exercise to build an example Docker image, run it as a container, push and save the image to Docker Hub.
Click the Docker menu () to seePreferences and other options.
Select About Docker to verify that you have the latest version.

Congratulations! You are now successfully running Docker Desktop.

If you would like to rerun the tutorial, go to the Docker Desktop menu and select Learn.

Automatic updates

Starting with Docker Desktop 3.0.0, updates to Docker Desktop will be available automatically as delta updates from the previous version.

When an update is available, Docker Desktop automatically downloads it to your machine and displays an icon to indicate the availability of a newer version. All you need to do now is to 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 Mac:

From the Docker menu, select Troubleshoot and then select Uninstall.
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 provides an overview of Docker Desktop on Mac, basic Docker command examples, how to get help or give feedback, and links to other topics about Docker Desktop on Mac.
Troubleshooting describes common problems, workarounds, howto run and submit diagnostics, and submit issues.
FAQs provide answers to frequently asked questions.
Release notes lists component updates, new features, and improvements associated with Docker Desktop releases.
Get started with Docker provides a general Docker tutorial.
Back up and restore data provides instructionson backing up and restoring data related to Docker.

mac, install, download, run, docker, local

Estimated reading time: 14 minutes

Did you know that Docker Desktop now offers support for developers subscribed to a Pro or a Team plan? Click here to learn more.

This page contains information on how to diagnose and troubleshoot Docker Desktop issues, request Docker Desktop support (Pro and Team plan users only), send logs and communicate with the Docker Desktop team, use our forums and Success Center, browse and log issues on GitHub, and find workarounds for known problems.

Troubleshoot

Choose > Troubleshootfrom the menu bar to see the troubleshoot options.

The Troubleshoot page contains the following options:

Restart Docker Desktop: Select to restart Docker Desktop.
Support: Developers on Pro and Team plans can use this option to send a support request. Other users can use this option to diagnose any issues in Docker Desktop. For more information, see Diagnose and feedback and Support.
Reset Kubernetes cluster: Select this option to delete all stacks and Kubernetes resources. For more information, see Kubernetes.
Clean / Purge data: This option resets all Docker data without areset to factory defaults. Selecting this option results in the loss of existing settings.
Reset to factory defaults: Choose this option to reset all options onDocker Desktop to their initial state, the same as when Docker Desktop was first installed.
Uninstall: Choose this option to remove Docker Desktop from yoursystem.

Uninstall Docker Desktop from the command line

To uninstall Docker Desktop from a terminal, run: <DockerforMacPath>--uninstall. If your instance is installed in the default location, thiscommand provides a clean uninstall:

You might want to use the command-line uninstall if, for example, you find thatthe app is non-functional, and you cannot uninstall it from the menu.

Diagnose and feedback

In-app diagnostics

If you encounter problems for which you do not find solutions in thisdocumentation, on Docker Desktop issues onGitHub, or the Docker Desktop forum, we can help you troubleshootthe log data. Before reporting an issue, we recommend that you read the information provided on this page to fix some common known issues.

Note

Docker Desktop offers support for users subscribed to a Pro or a Team plan. If you are experiencing any issues with Docker Desktop, follow the instructions in this section to send a support request to Docker Support.

Before you get started, we recommend that you sign into your Docker Desktop application and your Docker Hub account.

Choose > Troubleshoot.
Sign into Docker Desktop. In addition, ensure you are signed into your Docker account.
Click Get support. This opens the in-app Support page and starts collecting the diagnostics.
When the diagnostics collection process is complete, click Upload to get a Diagnostic ID.
When the diagnostics have been uploaded, Docker Desktop prints a diagnostic ID. Copy this ID.
If you have subscribed to a Pro or a Team plan, click Contact Support. This opens the Docker Desktop support form. Fill in the information required and add the ID you copied earlier to the Diagnostics ID field. Click Submit to request Docker Desktop support.
Note
You must be signed in to Docker Desktop using your Pro or Team plan credentials to access the support form. For information on what’s covered as part of Docker Desktop support, see Support.
If you are not subscribed to a Pro or a team plan, you can click Upgrade to benefit from Docker Support to upgrade your existing account. Alternatively, click Report a Bug to open a new Docker Desktop issue on GitHub. This opens Docker Desktop for Mac on GitHub in your web browser in a ‘New issue’ template. Complete the information required and ensure you add the diagnostic ID you copied earlier. Click submit new issue to create a new issue.

Diagnosing from the terminal

In some cases, it is useful to run the diagnostics yourself, for instance, ifDocker Desktop cannot start.

First, locate the com.docker.diagnose tool. If you have installed Docker Desktop in the Applications directory, then it is located at/Applications/Docker.app/Contents/MacOS/com.docker.diagnose.

To create and upload diagnostics, run:

After the diagnostics have finished, you should have the following output,containing your diagnostics ID:

The diagnostics ID (here BE9AFAAF-F68B-41D0-9D12-84760E6B8740/20190905152051) iscomposed of your user ID (BE9AFAAF-F68B-41D0-9D12-84760E6B8740) and a timestamp(20190905152051). Ensure you provide the full diagnostics ID, and not just the user ID.

To view the contents of the diagnostic file, run:

Check the logs

In addition to using the diagnose and feedback option to submit logs, you canbrowse the logs yourself.

In a terminal

To watch the live flow of Docker Desktop logs in the command line, run the following script from your favorite shell.

Alternatively, to collect the last day of logs (1d) in a file, run:

In the Console app

Macs provide a built-in log viewer, named “Console”, which you can use to checkDocker logs.

The Console lives in /Applications/Utilities; you can search for it withSpotlight Search.

To read the Docker app log messages, type docker in the Console window search bar and press Enter. Then select ANY to expand the drop-down list next to your docker search entry, and select Process.

You can use the Console Log Query to search logs, filter the results in variousways, and create reports.

Troubleshooting

Support for Apple silicon processors

At the moment, Docker Desktop is compatible with Intel processors only. You can learn more about the technical preview for Apple silicon in our docs.

Make sure certificates are set up correctly

Docker Desktop ignores certificates listed under insecure registries, and doesnot send client certificates to them. Commands like docker run that attempt topull from the registry produces error messages on the command line, for example:

As well as on the registry. For example:

For more about using client and server side certificates, seeAdding TLS certificates in the Getting Started topic.

Volume mounting requires file sharing for any project directories outside of `/Users`

If you are using mounted volumes and get runtime errors indicating anapplication file is not found, access to a volume mount is denied, or a servicecannot start, such as when using Docker Compose,you might need to enable file sharing.

Volume mounting requires shared drives for projects that live outside of the/Users directory. Go to >Preferences > Resources > File sharing and share the drive that contains the Dockerfile and volume.

Incompatible CPU detected

Docker Desktop requires a processor (CPU) that supports virtualization and, morespecifically, the Apple Hypervisorframework.Docker Desktop is only compatible with Mac systems that have a CPU that supports the Hypervisor framework. Most Macs built in 2010 and later support it,as described in the Apple Hypervisor Framework documentation about supported hardware:

Generally, machines with an Intel VT-x feature set that includes Extended PageTables (EPT) and Unrestricted Mode are supported.

To check if your Mac supports the Hypervisor framework, run the following command in a terminal window.

If your Mac supports the Hypervisor Framework, the command printskern.hv_support: 1.

If not, the command prints kern.hv_support: 0.

See also, Hypervisor FrameworkReferencein the Apple documentation, and Docker Desktop Mac system requirements.

Workarounds for common problems

If Docker Desktop fails to install or start properly on Mac:
- Make sure you quit Docker Desktop before installing a new version of theapplication ( > Quit Docker Desktop). Otherwise, you get an “application in use” error when you try tocopy the new app from the .dmg to /Applications.
- Restart your Mac to stop / discard any vestige of the daemon running fromthe previously installed version.
- Run the uninstall commands from the menu.
If docker commands aren’t working properly or as expected, you may need tounset some environment variables, to make sure you are not using the legacyDocker Machine environment in your shell or command window. Unset theDOCKER_HOST environment variable and related variables. If you use bash, use the following command: unset ${!DOCKER_*}
For the hello-world-nginx example, Docker Desktop must be running to get tothe web server on http://localhost/. Make sure that the Docker icon isdisplayed on the menu bar, and that you run the Docker commands in a shell that is connected to the Docker Desktop Engine.Otherwise, you might start the webserver container but get a “web page notavailable” error when you go to localhost.
If you see errors like Bind for 0.0.0.0:8080 failed: port is alreadyallocated or listen tcp:0.0.0.0:8080: bind: address is already in use:
- These errors are often caused by some other software on the Mac using thoseports.
- Run lsof -i tcp:8080 to discover the name and pid of the other process anddecide whether to shut the other process down, or to use a different port inyour docker app.

Known issues

IPv6 is not (yet) supported on Docker Desktop.
You might encounter errors when using docker-compose up with Docker Desktop(ValueError: Extra Data). We’ve identified this is likely related to dataand/or events being passed all at once rather than one by one, so sometimesthe data comes back as 2+ objects concatenated and causes an error.
Force-ejecting the .dmg after running Docker.app from it can cause thewhale icon to become unresponsive, Docker tasks to show as not responding inthe Activity Monitor, and for some processes to consume a large amount of CPUresources. Reboot and restart Docker to resolve these issues.
Docker does not auto-start on login even when it is enabled in > Preferences. This is related to aset of issues with Docker helper, registration, and versioning.
Docker Desktop uses the HyperKit hypervisor(https://github.com/docker/hyperkit) in macOS 10.10 Yosemite and higher. Ifyou are developing with tools that have conflicts with HyperKit, such asIntel Hardware Accelerated Execution Manager(HAXM),the current workaround is not to run them at the same time. You can pauseHyperKit by quitting Docker Desktop temporarily while you work with HAXM.This allows you to continue work with the other tools and prevent HyperKitfrom interfering.
If you are working with applications like ApacheMaven that expect settings for DOCKER_HOST andDOCKER_CERT_PATH environment variables, specify these to connect to Dockerinstances through Unix sockets. For example:
There are a number of issues with the performance of directories bind-mountedinto containers. In particular, writes of small blocks, and traversals of largedirectories are currently slow. Additionally, containers that perform largenumbers of directory operations, such as repeated scans of large directorytrees, may suffer from poor performance. Applications that behave in this wayinclude:
- rake
- ember build
- Symfony
- Magento
- Zend Framework
- PHP applications that use Composer to installdependencies in a vendor folder
As a workaround for this behavior, you can put vendor or third-party librarydirectories in Docker volumes, perform temporary file system operationsoutside of bind mounts, and use third-party tools like Unison or rsync tosynchronize between container directories and bind-mounted directories. We areactively working on performance improvements using a number of differenttechniques. To learn more, see the topic on our roadmap.

Support

Docker Desktop offers support for developers subscribed to a Pro or a Team plan. Click here to upgrade your existing account.

This section contains instructions on how to get support, and covers the scope of Docker Desktop support.

How do I get Docker Desktop support?

If you have subscribed to a Pro and Team account, please raise a ticket through Docker Desktop support.

Docker Community users can get support through our Github repos for-win and for-mac, where we respond on a best-effort basis.

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What support can I get?

If you are a Pro or a Team user, you can request for support on the following types of issues:

Desktop upgrade issues
Desktop installation issues
- Installation crashes
- Failure to launch Docker Desktop on first run
Usage issues
- Crash closing software
- Docker Desktop not behaving as expected
Configuration issues
Basic product ‘how to’ questions