Docker El Capitan

Docker Desktop For Mac El Capitan
Docker Desktop El Capitan
Docker El Capitan Free

To access Docker from the launchpad, possibly an update is needed to newer applications; including installing the Docker Toolbox for Mac/Windows. I would also consider after the installation enabling Live Restore to keep containers alive and running in case of any other subsequent mishaps. Docker For Mac Os X El Capitan Easeus Disk Copy For Mac Os X Rar For Mac Os X 10.6.8 Download Mac Os X Yosemite Iso For Virtualbox Cocoa Programming Tutorial For Mac Os X Skype For Mac Os X 10.6 8 Download Epson Scanner Driver For Mac Os X 10.9 Free 3d Software For Mac Os X Download Xcode For Os X 10.9.

For Macs running OS X El Capitan 10.11 and newer macOS releases, Docker Desktop for Mac is the better solution. For Windows 10 systems that support Microsoft Hyper-V (Professional, Enterprise and Education), Docker Desktop for Windows is the better solution. Union file system: Union file systems implement a union mount and operate by creating. At the time of writing, I had 2.7.11 installed on my machine with OSX El Capitan. After installing XQuartz restart your machine. Install Docker for Mac. Install docker using brew cask install docker or directly from the website here. Start XQuartz from command line using open -a XQuartz. In the XQuartz preferences, go to the. The file will continue to grow until it reaches 120GB in size. NOTE: On Linux systems, this process is more involved than it is for the Mac. You have to change the Docker configuration to define a new setting -storage-opt=dm.basesize=30G, or whatever size is appropriate for your environment.

Docker takes up a lot of space. When we run the container, pull the image, deploy the application, and build our own image, our disk space will be occupied.

If you are also troubled by this problem, let’s take a look at how docker uses disk space and how to recycle it.

Docker Desktop For Mac El Capitan

The space occupied by docker can be viewed through the following command:

TYPEFour types of disk used by docker are listed:

Images: space occupied by all images, including pulled images and locally built images.
Containers: the space occupied by the running containers, indicating the space of each container’s read-write layer.
Local volumes: the space for the container to mount the local data volume.
Build cache: mirrors the cache space generated during the build process (only available when using buildkit, available after docker 18.09).

finalRECLAIMABLEIs recyclable size.

Let’s take a look at these types.

Disk usage of container

Every time a container is created, some files and directories are created, such as:

/var/lib/docker/containers/IDDirectory. If the container uses the default log mode, all its logs will be saved to this directory in JSON form.
/var/lib/docker/overlay2The directory contains the read-write layer of the container. If the container uses its own file system to save data, it will be written to this directory.

Now let’s start with a completely clean system, assuming that docker has just been installed:

First, we start a nginx container:

Run nowdfAfter the command, you will see:

One image, 126mb
A container

There is no recyclable space at this time because the container is running and the mirror is being used.

Now, let’s create a 100MB empty file in the container:

View space again:

You can see that the space occupied by the container has increased. Where is the file stored on this machine?

As mentioned above, it is stored in the read-write layer of the container.

When the container is stopped, the space occupied by the container becomes recyclable:

How to recycle it? Deleting a container will delete the space occupied by its associated read-write layer.

You can also delete all stopped containers with one click:

After deleting the container, the image can also be recycled:

abovedocker container pruneThe command is to delete stopped containers. If you want to delete all containers (including stopped and running ones), you can use the following two commands:

Mirrored disk usage

Some of the images are invisible:

A child image is an intermediate image referenced by other images and cannot be deleted.
A suspended image, that is, an image that will no longer be used, can be deleted.

The following command lists all mirrors in the suspended state:

Delete this type of image:

Or:

If you want to delete all mirrors, you can use the following command:

Note that the image being used by the container cannot be deleted.

Disk usage of data volume

Docker Desktop El Capitan

Data volume is the data storage outside the file system of the container itself.

For example, the application in the container has the function of uploading pictures, which can’t be saved in the container after uploading, because the data in the container will be deleted with the death of the container, so these pictures should be saved outside the container, that is, the data volume.

For example, we run a mongodb container for testing and import a lot of test data, which is not inside the container, but in the data volume, because the data volume is used in the dockerfile of mongodb.

After the test is completed, the mongodb container is deleted, but the test data is still there and has not been deleted.

To delete a data volume that is no longer in use:

Or:

Disk usage of build cache

Docker 18.09 introduced buildkit to improve the performance, security, storage management and other capabilities of the construction process.