Do You Have Problems With Docker For Mac

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Do You Have Problems With Docker For Mac

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As of this morning, all shipped cumulative updates (+ all localizations) of Microsoft Dynamics NAV 2016 and 2017 are available as Docker images in the Docker Hub, ready for execution on a Windows system with Docker installed.

This means, that if you have a computer running Windows 10 Professional edition or Windows Server 2016, you can install Docker (follow this blog post until the Set up an ASP.NET.. section or for Windows Server 2016, you can install the EE version by following this blog post) and run:

in a Command Prompt running as Administrator and get the W1 country version of the latest cumulative update of the latest version of NAV running on your computer within a few minutes (the first time will take more time for downloading base components)

Or you can run any other cumulative update (of 2016 or 2017), just by specifying the version, the CU and the country version you want as a tag:

Note: One of my next posts will be a troubleshooting blog post - what can you do if things doesn't work.

When you execute the docker run command, Docker will start downloading the image if it doesn't already exist. After downloading the image from the docker hub, you should be seeing something like this:

You might have a problem if you need the ParaView reader that ships with OpenFOAM (i.e. You normally use paraFoam). In my experience the built-in OpenFOAM reader is more than up to the job. Create an empty file with a.foam extension in your case directory, i.e. Touch open.foam and read that into ParaView - bingo. If you have big problems, there is a 'Reset' option in the Docker for Mac or Docker for Windows app preferences UI, or you can do docker system prune. Troubleshooting Refer to Troubleshooting issues during development.

and if you open up your internet browser and type in the Web Client URL, you should be prompted with a login dialog, where you can login with the NAV Admin Username/Password displayed:

So you are clearly running NAV somewhere but if you investigate your system, you won't find this version of NAV installed. You also might not be running IIS or SQL Server, so how in earth can NAV run on my box with database, Web Client and all?

If you investigate your Hyper-V Manager you also won't see any Virtual Machines, so..

When every other attempt to explain something fails, it must be magic, right?

Well fortunately, there are good explanations to what you are seeing. You are running NAV in a Container (aka NAV on Docker). It is kind of a Virtual Machine, but then again it isn't. For now, the only thing you really need to know is, that what's inside the container is isolated from the host, meaning that you can run any number of containers (resources allowing) side by side without any conflicts.

Yes, that also means that you can run different versions, different cumulative updates and different localization's of NAV very efficiently side by side.

Docker command not found mac

Now you might be thinking: So, I can run the NAV Web Client towards the NAV Demo Database - big deal - but I need much more than that, can I ..???

And you certainly can get much more than that.

In fact, you can:

  • use your own database in the Container
  • connect to your own SQL Server
  • integrate NAV with your AD (and use Windows Authentication)
  • avoid the SSL warning when running locally
  • use the Classic Development Environment and customize NAV
  • use the Windows Client
  • split Web Client and Service Tier
  • and a lot lot more

You can really configure the service tier inside the container the way you want. Some things can be done just by specifying a parameter, some things might require PowerShell code.

The idea is that I will write up a series of blog posts on how to achieve a number of these things.

Enjoy

Freddy Kristiansen
Technical Evangelist

Estimated reading time: 17 minutes

Welcome to Docker Desktop!

The Docker Desktop for Mac section contains information about the Docker Desktop Community Stable release. For information about features available in Edge releases, see the Edge release notes. For information about Docker Desktop Enterprise (DDE) releases, see Docker Desktop Enterprise.

Docker is a full development platform to build, run, and share containerized applications. Docker Desktop is the best way to get started with Docker on Mac.

See Install Docker Desktop for download information, system requirements, and installation instructions.

Check versions

Ensure your versions of docker and docker-compose areup-to-date and compatible with Docker.app. Your output may differ if you arerunning different versions.

Explore the application

  1. Open a command-line terminal and test that your installation works byrunning the simple Docker image,hello-world:

  2. Start a Dockerized web server. Like the hello-world image above, if theimage is not found locally, Docker pulls it from Docker Hub.

  3. 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 used docker 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.

  4. View the details on the container while your web server is running (withdocker container ls or docker ps):

  5. Stop and remove containers and images with the following commands. Use the“all” flag (--all or -a) to view stopped containers.

Preferences

Do You Have Problems With Docker For Mac

Choose the Docker menu > Preferences from themenu bar and configure the runtime options described below.

General

On the General tab, you can configure when to start and update Docker:

  • Start Docker Desktop when you log in: Automatically starts Docker Desktop when you open your session.

  • Automatically check for updates: By default, Docker Desktop automatically checks for updates and notifies you when an update is available. You can manually check for updates anytime by choosing Check for Updates from the main Docker menu.

  • Include VM in Time Machine backups: Select this option to back up the Docker Desktop virtual machine. This option is disabled by default.

  • Securely store Docker logins in macOS keychain: Docker Desktop stores your Docker login credentials in macOS keychain by default.

  • Send usage statistics: Docker Desktop sends diagnostics, crash reports, and usage data. This information helps Docker improve and troubleshoot the application. Clear the check box to opt out.

Resources

The Resources tab allows you to configure CPU, memory, disk, proxies, network, and other resources.

Advanced

On the Advanced tab, you can limit resources available to Docker.

Advanced settings are:

CPUs: By default, Docker Desktop 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 is set to use 2 GB runtime memory,allocated from the total available memory on your Mac. To increase the RAM, set this to a higher number. To decrease it, lower the number.

Swap: Configure swap file size as needed. The default is 1 GB.

Disk image size: Specify the size of the disk image.

Disk image location: Specify the location of the Linux volume where containers and images are stored.

You can also move the disk image to a different location. If you attempt to move a disk image to a location that already has one, you get a prompt asking if you want to use the existing image or replace it.

File sharing

Use File sharing to allow local directories on the Mac to be shared with Linux containers.This is especially useful forediting source code in an IDE on the host while running and testing the code in a container.By default the /Users, /Volume, /private, /tmp and /var/folders directory are shared. If your project is outside this directory then it must be addedto the list. Otherwise you may get Mounts denied or cannot start service errors at runtime.

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:

    • The directory must not 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.)

Proxies

Docker Desktop 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.

Bittorrent. 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 have anycontainers that you would like to keep running across restarts, you should consider using restart policies.

Network

You can configure Docker Desktop networking to work on a virtual private network (VPN). Specify a network address translation (NAT) prefix and subnet mask to enable Internet connectivity.

Docker Engine

The Docker Engine page allows you to configure the Docker daemon to determine how your containers run.

Type a JSON configuration file in the box to configure the daemon settings. For a full list of options, see the Docker Enginedockerd commandline reference.

Click Apply & Restart to save your settings and restart Docker Desktop.

Command Line

On the Command Line page, you can specify whether or not to enable experimental features.

Experimental features provide early access to future product functionality.These features are intended for testing and feedback only as they may changebetween releases without warning or can be removed entirely from a futurerelease. Experimental features must not be used in production environments.Docker does not offer support for experimental features.

To enable experimental features in the Docker CLI, edit the config.jsonfile and set experimental to enabled.

To enable experimental features from the Docker Desktop menu, clickSettings (Preferences on macOS) > Command Line and then turn onthe Enable experimental features toggle. Click Apply & Restart.

For a list of current experimental features in the Docker CLI, see Docker CLI Experimental features.

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

You can see whether you are running experimental mode at the command line. IfExperimental is true, then Docker is running in experimental mode, as shownhere. (If false, Experimental mode is off.)

Kubernetes

Docker Desktop includes a standalone Kubernetes server that runs on your Mac, sothat you can test deploying your Docker workloads on Kubernetes.

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-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. To set Kubernetes as thedefault orchestrator, select Deploy Docker Stacks to Kubernetes by default.

    Click Apply & Restart to save the settings. This instantiates images required to run the Kubernetes server as containers, and installs the/usr/local/bin/kubectl command on your Mac.

    When Kubernetes is enabled and running, an additional status bar item displaysat the bottom right of the Docker Desktop Settings dialog.

    The status of Kubernetes shows in the Docker menu and the context points todocker-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, clear the Enable Kubernetes check box. 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, seeDeploy on Kubernetes.

Reset

Reset and Restart options

On Docker Desktop Mac, the Restart Docker Desktop, Reset to factory defaults, and other reset options are available from the Troubleshoot menu.

For information about the reset options, see Logs and Troubleshooting.

Dashboard

The Docker Desktop Dashboard enables you to interact with containers and applications and manage the lifecycle of your applications directly from your machine. The Dashboard UI shows all running, stopped, and started containers with their state. It provides an intuitive interface to perform common actions to inspect and manage containers and existing Docker Compose applications. For more information, see Docker Desktop Dashboard.

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 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.

To manually add a custom, self-signed certificate, start by adding thecertificate to the macOS keychain, which is picked up by Docker Desktop. 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 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 application starts, it copies the ~/.docker/certs.dfolder on your Mac to the /etc/docker/certs.d directory on Moby (the DockerDesktop xhyve virtual machine).

  • You need to restart Docker Desktop 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 DockerEngine. Docker Desktop 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:

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, seeVerify repository client with certificatesin the Docker Engine topics.

Install shell completion

Docker Desktop comes with scripts to enable completion for the docker 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

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.

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. SeeLogs and Troubleshooting for more details.

For information about providing feedback on the documentation or update it yourself, see Contribute to documentation.

Docker Hub

Select Sign in /Create Docker ID from the Docker Desktop menu to access your Docker Hub account. Once logged in, you can access your Docker Hub repositories and organizations directly from the Docker Desktop menu.

For more information, refer to the following Docker Hub topics:

Two-factor authentication

Docker Desktop enables you to sign into Docker Hub using two-factor authentication. Two-factor authentication provides an extra layer of security when accessing your Docker Hub account.

You must enable two-factor authentication in Docker Hub before signing into your Docker Hub account through Docker Desktop. For instructions, see Enable two-factor authentication for Docker Hub.

After you have enabled two-factor authentication:

  1. Go to the Docker Desktop menu and then select Sign in / Create Docker ID.

  2. Enter your Docker ID and password and click Sign in.

  3. After you have successfully signed in, Docker Desktop prompts you to enter the authentication code. Enter the six-digit code from your phone and then click Verify.

After you have successfully authenticated, you can access your organizations and repositories directly from the Docker Desktop menu.

Where to go next

  • Try out the walkthrough at Get Started.

  • Dig in deeper with Docker Labs examplewalkthroughs and source code.

  • For a summary of Docker command line interface (CLI) commands, seeDocker CLI Reference Guide.

  • Check out the blog post, What’s New in Docker 17.06 Community Edition(CE).

mac, tutorial, run, docker, local, machine

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