How To Monitor Docker For Mac

Get started with Docker for Mac Estimated reading time: 18 minutes Welcome to Docker for Mac! Docker is a full development platform for creating containerized apps, and Docker for Mac is the best way to get started with Docker on a Mac. Got Docker for Mac? If you have not yet installed Docker for Mac, see for an explanation of stable and edge channels, system requirements, and download/install information. Looking for system requirements?

Check out, which has moved to the new install topic. Check versions of Docker Engine, Compose, and Machine Run these commands to test if your versions of docker, docker-compose, and docker-machine are up-to-date and compatible with Docker.app. $ docker -version Docker version 17.03.0-ce, build 60ccb22 $ docker-compose -version docker-compose version 1.11.2, build dfed245 $ docker-machine -version docker-machine version 0.10.0, build 76ed2a6 Note: The above is an example. Your output will differ if you are running different (e.g., newer) versions. Explore the application and run examples. Open a command-line terminal, and run some Docker commands to verify that Docker is working as expected. Some good commands to try are docker version to check that you have the latest release installed, and docker ps and docker run hello-world to verify that Docker is running.

For something more adventurous, start a Dockerized web server. Docker run -d -p 80:80 -name webserver nginx If the image is not found locally, Docker will pull it from Docker Hub.

In a web browser, go to to bring up the home page. (Since you specified the default HTTP port, it isn’t necessary to append:80 at the end of the URL.) Note: Early beta releases used docker as the hostname to build the URL. Now, ports are exposed on the private IP addresses of the VM and forwarded to localhost with no other host name set. See also, for Beta 9. Run docker ps while your web server is running to see details on the webserver container. CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 90 nginx 'nginx -g 'daemon off' About a minute ago Up About a minute 0.0.0.0:80-80/tcp, 443/tcp webserver. Stop or remove containers and images.

The nginx webserver will continue to run in the container on that port until you stop and/or remove the container. If you want to stop the webserver, type: docker stop webserver and start it again with docker start webserver. A stopped container will not show up with docker ps; for that, you need to run docker ps -a. To stop and remove the running container with a single command, type: docker rm -f webserver. This will remove the container, but not the nginx image.

You can list local images with docker images. You might want to keep some images around so that you don’t have to pull them again from Docker Hub. To remove an image you no longer need, use docker rmi followed by an image ID or image name. For example, docker rmi nginx. Want more example applications? And are great places to start.

Preferences Choose - Preferences from the menu bar. You can set the following runtime options.

Note: The above example shows a user signed in for integrated Docker Cloud access. To learn more about the feature, see.

General Auto-start, update, backups, usage data. Docker for Mac is set to automatically start Docker when you log in. Uncheck this option if you don’t want Docker to start when you open your session.

Docker for Mac is set to automatically check for updates and notify you when an update is available. If an update is found, click OK to accept and install it (or cancel to keep the current version). If you disable the check for updates, you can still find out about updates manually by choosing - Check for Updates. Check Include VM in Time Machine backups to back up the Docker for Mac virtual machine. (By default, this is unchecked.).

You have the option to Securely store Docker logins in MacOS keychain, enabled by default. To “opt out” of storing your Docker login credentials, uncheck this option. Send usage statistics — You can set Docker for Mac to auto-send diagnostics, crash reports, and usage data.

This information can help Docker improve the application and get more context for troubleshooting problems. Uncheck this to opt out and prevent auto-send of data. Docker may prompt for more information in some cases, even with auto-send enabled. File sharing You can decide which directories on your Mac to share with containers. Add a Directory - Click + and navigate to the directory you want to add. Click Apply & Restart to make the directory available to containers using Docker’s bind 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.

See in the topic on for more information. Tip: File sharing is required for volume mounting if the project lives outside of the /Users directory. In that case, share the drive where the Dockerfile and volume are located. Otherwise, you will get file not found or cannot start service errors at runtime. (See also.) Advanced CPUs By default, Docker for Mac is set to use half the number of processors available on the host machine.

You can increase processing power for the app by setting this to a higher number, or lower it to have Docker for Mac use fewer computing resources. Memory By default, Docker for Mac is set to use 2 GB runtime memory, allocated from the total available memory on your Mac. You can increase the RAM on the app to get faster performance by setting this number higher (for example to 3) or lower (to 1) if you want Docker for Mac to use less memory. Disk image location (storage) You can specify the Disk image location of the Linux volume; i.e., where containers and images are stored. You can move the disk image location. If you attempt to move the disk image to a location that already has one, you will get a prompt asking if you want to use the existing image or replace it. HTTP proxy settings Docker for Mac will detect HTTP/HTTPS Proxy Settings and automatically propagate these to Docker and to your containers.

How To Check Docker Version Mac

For example, if you set your proxy settings to Docker will use this proxy when pulling containers. Docker Daemon You can configure options on the Docker daemon that determine how your containers will run. You can configure some Basic options on the daemon with interactive settings, or switch to Advanced to edit the JSON directly. The settings offered on Basic dialog can be configured directly in the JSON as well. This version just surfaces some of the common settings to make it easier to configure them.

Experimental mode Both Docker for Mac Stable and Edge releases have experimental features enabled on Docker Engine, as described in the on GitHub. Experimental features are not appropriate for production environments or workloads. They are meant to be sandbox experiments for new ideas. Some experimental features may become incorporated into upcoming stable releases, but others may be modified or pulled from subsequent Edge releases, and never released on Stable.

On both Edge and Stable releases, you can toggle experimental mode on and off. If you toggle it off, Docker for Mac uses the current generally available release of Docker Engine.

You can check whether you are running experimental mode or not by typing docker version on the command line. Experimental mode is listed under Server data.

If Experimental is true, then Docker is running in experimental mode, as shown here. (If false, Experimental mode is off.). $ docker version Client: Version: 1.13.0-rc3 API version: 1.25 Go version: go1.7.3 Git commit: 4d92237 Built: Tue Dec 6 01: OS/Arch: darwin/amd64 Server: Version: 1.13.0-rc3 API version: 1.25 (minimum version 1.12 ) Go version: go1.7.3 Git commit: 4d92237 Built: Tue Dec 6 01: OS/Arch: linux/amd64 Experimental: true Custom registries As an alternative to using to store your public or private images or, you can use Docker to set up your own insecure. Add URLs for insecure registries and registry mirrors on which to host your images. See also, and in the FAQs. Edit the daemon configuration file On the Daemon - Advanced dialog, you can directly configure the daemon from the JSON file, and determine entirely how your containers will run.

For a full list of options on the Docker daemon, see in the Docker Engine command line reference. After editing the daemon configuration, click Apply & Restart to save it and reboot Docker. Or, to cancel changes, click another preference tab, then choose to discard or not apply changes when asked.

Kubernetes Kubernetes is only available in Docker for Mac 17.12 CE Edge to participants in the. To access beta builds, you must be signed in with your Docker ID within Docker for Mac: select - Sign in / Create Docker ID from the menu bar. If you are participating in the Docker beta program, you can access Docker for Mac 17.12 CE Edge, which includes a standalone Kubernetes server that runs on your Mac, so that you can test deploying your Docker workloads on Kubernetes. The Kubernetes client command, kubectl, is included and configured to connect to the local Kubernetes server.

If you have kubectl already installed and pointing to some other environment, such as minikube or a GKE cluster, be sure to change context so that kubectl is pointing to docker-for-desktop. Kubectl config get-contexts kubectl config use-context docker-for-desktop If you installed kubectl with Homebrew, or by some other method, and experience conflicts, remove /usr/local/bin/kubectl. To enable Kubernetes support and install a standalone instance of Kubernetes running as a Docker container, select Enable Kubernetes and click the Apply and restart button. An internet connection is required. Images required to run the Kubernetes server 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 displays at the bottom right of the Docker for Mac Preferences dialog. By default, Kubernetes containers are hidden from commands like docker service ls, because managing them manually is not supported. To make them visible, select Show system containers (advanced) and click Apply and restart. Most users do not need this option.

To disable Kubernetes support at any time, deselect Enable Kubernetes. The Kubernetes containers are stopped and removed, and the /usr/local/bin/kubectl command is removed. For more about using the Kubernetes integration with Docker for Mac, see. Uninstall or reset Choose - Preferences from the menu bar, then click Uninstall / Reset on the Preferences dialog. Remove all data - This option removes/resets all Docker data without a reset to factory defaults (which would cause you to lose settings). Uninstall - Choose this option to remove Docker for Mac from your system.

Install Docker For Mac

Reset to factory defaults - Choose this option to reset all options on Docker for Mac to its initial state, the same as when it was first installed. Uninstall from the command line Alternatively, you can uninstall Docker for Mac from the command line with this command: -uninstall. If Docker is installed in the default location, the following command will provide a clean uninstall. $ /Applications/Docker.app/Contents/MacOS/Docker -uninstall Docker is running, exiting.

Docker uninstalled successfully. You can move the Docker application to the trash.

You might want to use the command-line uninstall if, for example, you find that the 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 registry server certificates) and client certificates (used to authenticate to registries) to your Docker daemon. Add custom CA certificates (server side) All trusted CAs (root or intermediate) are supported. Docker for Mac creates a certificate bundle of all user-trusted CAs based on the Mac Keychain, and appends it to Moby trusted certificates.

So if an enterprise SSL certificate is trusted by the user on the host, it will be trusted by Docker for Mac. To manually add a custom, self-signed certificate, start by adding the certificate to the Mac’s keychain, which will be picked up by Docker for Mac. Here is an example. Security add-trusted-cert -d -r trustRoot -k /Library/Keychains/login.keychain ca.crt See also,. Note: You need to restart Docker for Mac after making any changes to the keychain or to the /.docker/certs.d directory in order for the changes to take effect.

For a complete explanation of how to do this, see the blog post. Add client certificates You can put your client certificates in /.docker/certs.d/:/client.cert and /.docker/certs.d/:/client.key. When the Docker 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 Docker for Mac xhyve virtual machine).

You need to restart Docker for Mac after making any changes to the keychain or to the /.docker/certs.d directory in order for the changes to take effect. The registry cannot be listed as an insecure registry (see ). Docker for Mac will ignore certificates listed under insecure registries, and will not send client certificates.

Commands like docker run that attempt to pull from the registry will produce error messages 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 CA certificate to your Mac OS system login. /Users//.docker/certs.d/ └──: ├── client.cert └── client.key To learn more about how to install a CA root certificate for the registry and how to set the client TLS certificate for verification, see in the Docker Engine topics.

Install shell completion Docker for Mac comes with scripts to enable completion for the docker, docker-machine, and docker-compose commands. The completion scripts may be found inside Docker.app, in the Contents/Resources/etc/ directory and can be installed both in Bash and Zsh. Bash Bash has To activate completion for Docker commands, these files need to be copied or symlinked to your bashcompletion.d/ directory. For example, if you installed bash via. Ln -s /Applications/Docker.app/Contents/Resources/etc/docker.bash-completion /usr/local/etc/bashcompletion.d/docker ln -s /Applications/Docker.app/Contents/Resources/etc/docker-machine.bash-completion /usr/local/etc/bashcompletion.d/docker-machine ln -s /Applications/Docker.app/Contents/Resources/etc/docker-compose.bash-completion /usr/local/etc/bashcompletion.d/docker-compose Zsh In Zsh, the 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.

Ln -s /Applications/Docker.app/Contents/Resources/etc/docker.zsh-completion /usr/local/share/zsh/site-functions/docker ln -s /Applications/Docker.app/Contents/Resources/etc/docker-machine.zsh-completion /usr/local/share/zsh/site-functions/docker-machine ln -s /Applications/Docker.app/Contents/Resources/etc/docker-compose.zsh-completion /usr/local/share/zsh/site-functions/docker-compose Give feedback and get help To get help from the community, review current user topics, join or start a discussion, log on to our. To report bugs or problems, log on to, where you can review community reported issues, and file new ones. As a part of reporting issues on GitHub, we can help you troubleshoot the log data. To give us feedback on the documentation or update it yourself, use the Feedback options at the bottom of each docs page.

Docker Store Choose Docker Store from the Docker for Mac menu to get to the Docker app downloads site. Is a component of the next-generation Docker Hub, and the best place to find compliant, trusted commercial and free software distributed as Docker Images. Docker Cloud You can access your account from within Docker for Mac. From the Docker for Mac menu, sign in to Docker Cloud with your Docker ID, or create one. Then use the Docker for Mac menu to create, view, or navigate directly to your Cloud resources, including organizations, repositories, and swarms. Check out these to learn more:.

Need a direct link to Cloud?. Where to go next. Try out the walkthrough at.

Dig in deeper with example walkthroughs and source code. For a summary of Docker command line interface (CLI) commands, see. Check out the blog post.,.