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Welcome to Docker Desktop for Mac! Docker is a full development platform for creatingcontainerized apps, and Docker Desktop for Mac is the best way to get started withDocker on a Mac.
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See Install Docker Desktop for Mac forinformation on system requirements and stable & edge channels.
Check versions
Ensure your versions of
docker
, docker-compose
, and docker-machine
areup-to-date and compatible with Docker.app
. Your output may differ if you arerunning different versions.Explore the application
- Open a command-line terminal and test that your installation works byrunning the simple Docker image,hello-world:
- Start a Dockerized web server. Like the
hello-world
image above, if theimage is not found locally, Docker pulls it from Docker Hub. - In a web browser, go to
http://localhost/
to view the nginx homepage.Because we specified the default HTTP port, it isn’t necessary to append:80
at the end of the URL.Early beta releases useddocker
as the hostname to build the URL. Now,ports are exposed on the private IP addresses of the VM and forwarded tolocalhost
with no other host name set. - View the details on the container while your web server is running (with
docker container ls
ordocker ps
): - Stop and remove containers and images with the following commands. Use the“all” flag (
--all
or-a
) to view stopped containers.
Preferences menu
Choose → Preferences from themenu bar and configure the runtime options described below.
General
General settings are:
- Start Docker when you log in: Uncheck this option if you don’t want Dockerto start when you open your session.
- Automatically check for updates notifies you when an update is available.Click OK to accept and install updates (or cancel to keep the currentversion). If you disable this option, you can still find out about updatesmanually by choosing → Checkfor Updates.
- Include VM in Time Machine backups backs up the Docker Desktop for Mac virtualmachine. (Disabled by default.)
- Securely store Docker logins in MacOS keychain stores your Docker logincredentials. (Enabled by default.)
- Send usage statistics — Send diagnostics, crash reports, and usagedata to Docker. This information helps Docker improve the application and getmore context for troubleshooting problems. (Enabled by default.)
File sharing
Choose which local directories to share with your containers. File sharing isrequired for volume mounting if the project lives outside of the
/Users
directory. In that case, share the drive where the Dockerfile and volume arelocated. Otherwise, you get file not found
or cannot start service errors atruntime
.File share settings are:
- Add a Directory: Click
+
and navigate to the directory you want to add. - Apply & Restart makes the directory available to containers using Docker’sbind mount (
-v
) feature.There are some limitations on the directories that can be shared:- They cannot be a subdirectory of an already shared directory.
- They cannot already exist inside of Docker.
For more information, see:
- Namespaces in the topic onosxfs file system sharing.
- Volume mounting requires file sharing for any project directories outside of
/Users
.)
Advanced
On the Advanced tab, you can limit resources available to Docker.
Advanced settings are:
CPUs: By default, Docker Desktop for Mac is set to use half the number of processorsavailable on the host machine. To increase processing power, set this to ahigher number; to decrease, lower the number.
Memory: By default, Docker Desktop for Mac is set to use
2
GB runtime memory,allocated from the total available memory on your Mac. To increase RAM, set thisto a higher number; to decrease it, lower the number.Swap: Configure swap file size as needed. The default is 1 GB.
Disk
Specify the Disk image location of the Linux volume, where containers andimages are stored.
You can also move the disk image location. If you attempt to move the disk imageto a location that already has one, you get a prompt asking if you want to usethe existing image or replace it.
Proxies
Docker Desktop for Mac detects HTTP/HTTPS Proxy Settings from macOS and automaticallypropagates these to Docker and to your containers. For example, if you set yourproxy settings to
http://proxy.example.com
, Docker uses this proxy whenpulling containers.When you start a container, your proxy settings propagate into the containers.For example:
You can see from the above output that the
HTTP_PROXY
, http_proxy
, andno_proxy
environment variables are set. When your proxy configuration changes,Docker restarts automatically to pick up the new settings. If you havecontainers that you wish to keep running across restarts, you should considerusing restart policies.Daemon
You can configure options on the Docker daemon that determine how yourcontainers run.
Select Basic to configure the daemon with interactive settings, or selectAdvanced to edit the JSON directly.
Experimental features
Both Docker Desktop for Mac Stable and Edge releases have experimental features enabledon Docker Engine, as described Docker Experimental FeaturesREADME. If you uncheck experimental mode, Docker Desktop for Macuses the current generally available release of Docker Engine.
Don’t enable experimental features in production
Experimental features are not appropriate for production environments orworkloads. They are meant to be sandbox experiments for new ideas. Someexperimental features may become incorporated into upcoming stable releases,but others may be modified or pulled from subsequent Edge releases, and neverreleased on Stable.
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You can see whether you are running experimental mode at the command line. If
Experimental
is true
, then Docker is running in experimental mode, as shownhere. (If false
, Experimental mode is off.)Insecure registries
You can set up a custom and insecure registry to store your public or private images (instead ofusing Docker Hub orDocker Trusted Registry). Add URLs foryour insecure registries and registry mirrors on which to host your images.
See also:
Daemon configuration file
Click the Advanced tab to configure the daemon from the JSON file. For afull list of options, see the Docker Engine dockerd commandlinereference.
Click Apply & Restart to save your settings and reboot Docker. Or, to cancelchanges, click another preference tab, then choose to discard or not applychanges when asked.
Kubernetes
In Docker Desktop for Mac 17.12 Edge(mac45)and higher, and 18.06 Stable(mac70)and higher, a standalone Kubernetes server is included that runs on your Mac, sothat you can test deploying your Docker workloads on Kubernetes.
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The Kubernetes client command,
kubectl
, is included and configured to connectto the local Kubernetes server. If you have kubectl
already installed andpointing to some other environment, such as minikube
or a GKE cluster, be sureto change context so that kubectl
is pointing to docker-for-desktop
:If you installed
kubectl
with Homebrew, or by some other method, andexperience conflicts, remove /usr/local/bin/kubectl
.- To enable Kubernetes support and install a standalone instance of Kubernetesrunning as a Docker container, select Enable Kubernetes, choose thedefaultorchestratorand click the Apply button.An Internet connection is required. Images required to run the Kubernetesserver are downloaded and instantiated as containers, and the
/usr/local/bin/kubectl
command is installed on your Mac.When Kubernetes is enabled and running, an additional status bar item displaysat the bottom right of the Docker Desktop for Mac Preferences dialog.The status of Kubernetes shows in the Docker menu and the context points todocker-for-desktop
. - By default, Kubernetes containers are hidden from commands like
dockerservice ls
, because managing them manually is not supported. To make themvisible, select Show system containers (advanced) and click Apply andrestart. Most users do not need this option. - To disable Kubernetes support at any time, deselect Enable Kubernetes. TheKubernetes containers are stopped and removed, and the
/usr/local/bin/kubectl
command is removed.For more about using the Kubernetes integration with Docker Desktop for Mac, seeDeploy on Kubernetes.
Reset
Select -> Preferences from themenu bar, then click Reset to reset factory defaults, restart the Dockerdaemon, or uninstall.
Reset settings are:
- Restart - Select to restart the Docker daemon.
- Remove all data - This option removes/resets all Docker data without areset to factory defaults (which would cause you to lose settings).
- Reset to factory defaults - Choose this option to reset all options onDocker Desktop for Mac to its initial state, the same as when it was first installed.
- Uninstall - Choose this option to remove Docker Desktop for Mac from yoursystem.
Uninstall Docker Desktop for Mac from the commandline
To uninstall Docker from Mac 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.
Add TLS certificates
You can add trusted Certificate Authorities (CAs) (used to verify registryserver certificates) and client certificates (used to authenticate toregistries) to your Docker daemon.
Add custom CA certificates (server side)
All trusted CAs (root or intermediate) are supported. Docker Desktop for Mac creates acertificate bundle of all user-trusted CAs based on the Mac Keychain, andappends it to Moby trusted certificates. So if an enterprise SSL certificate istrusted by the user on the host, it is trusted by Docker Desktop for Mac.
To manually add a custom, self-signed certificate, start by adding thecertificate to the macOS keychain, which is picked up by Docker Desktop for Mac. Here isan example.
Or, if you prefer to add the certificate to your own local keychain only (ratherthan for all users), run this command instead:
See also, Directory structures forcertificates.
Note: You need to restart Docker Desktop for Mac after making any changes to thekeychain or to the
~/.docker/certs.d
directory in order for the changes totake effect.For a complete explanation of how to do this, see the blog post AddingSelf-signed Registry Certs to Docker & Docker Desktop forMac.
Add client certificates
You can put your client certificates in
~/.docker/certs.d/<MyRegistry>:<Port>/client.cert
and~/.docker/certs.d/<MyRegistry>:<Port>/client.key
.When the Docker Desktop for Mac application starts up, it copies the
~/.docker/certs.d
folder on your Mac to the /etc/docker/certs.d
directory on Moby (the Dockerfor Mac xhyve
virtual machine).- You need to restart Docker Desktop for Mac after making any changes to the keychainor to the
~/.docker/certs.d
directory in order for the changes to takeeffect. - The registry cannot be listed as an insecure registry (see DockerDaemon). Docker Desktop for Mac ignores certificates listedunder insecure registries, and does not send client certificates. Commandslike
docker run
that attempt to pull from the registry produce errormessages on the command line, as well as on the registry.
Directory structures for certificates
If you have this directory structure, you do not need to manually add the CAcertificate to your Mac OS system login:
The following further illustrates and explains a configuration with customcertificates:
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You can also have this directory structure, as long as the CA certificate isalso in your keychain.
To learn more about how to install a CA root certificate for the registry andhow to set the client TLS certificate for verification, see Verify repositoryclient with certificates in the Docker Enginetopics.
Install shell completion
Docker Desktop for Mac comes with scripts to enable completion for the
docker
,docker-machine
, and docker-compose
commands. The completion scripts may befound inside Docker.app
, in the Contents/Resources/etc/
directory and can beinstalled both in Bash and Zsh.Bash
Free skyrim download for mac. Bash has built-in support forcompletion To activate completion for Docker commands, these files need to becopied or symlinked to your
bash_completion.d/
directory. For example, if youinstalled bash via Homebrew:Add the following to your
~/.bash_profile
:OR
Zsh
In Zsh, the completionsystem takes care of things. To activate completion for Docker commands,these files need to be copied or symlinked to your Zsh
site-functions/
directory. For example, if you installed Zsh via Homebrew:Give feedback and get help
To get help from the community, review current user topics, join or start adiscussion, log on to our Docker Desktop for Macforum.
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To report bugs or problems, log on to Docker Desktop for Mac issues onGitHub,where you can review community reported issues, and file new ones. See Logsand Troubleshooting for more details.
To give us feedback on the documentation or update it yourself, use the Feedbackoptions at the bottom of each docs page.
Docker Hub
You can access your Docker ID account from within Docker Desktop for Mac.
From the Docker Desktop for Mac menu, sign in to Docker Hub with your Docker ID, orcreate one.
Then use the Docker Desktop for Mac menu to create, view, or navigate directly to yourCloud resources, including organizations, repositories, and swarms.
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Check out these Docker Hub topics to learn more:
Where to go next
- Try out the walkthrough at Get Started.
- Dig in deeper with Docker Labs examplewalkthroughs and source code.
- Internet explorer 10 free download for mac os. For a summary of Docker command line interface (CLI) commands, see Docker CLIReference Guide.
- Check out the blog post, What’s New in Docker 17.06 Community Edition(CE).