The platform known as Docker has become one of the most popular ways to run a new kind of software known as containerized apps. And while Docker's mainly aimed at programmer types, there are a few reasons why everyday Mac users might want it around as well.

• Mac Software To See Inside Containers

What are containerized apps?

Containerized apps are tidy little packages of software that bundle nearly everything they need to run in a single, self-contained box.

You'd be surprised - Containers actually are supported - the OS X (and iOS) Sandbox has evolved to use them. They have been introduced in 10.7, and are now de facto standard in 10.10 and iOS 8. In the latter they are more strictly enforced (primarily due to reason of application security), to the point where an app can only see itself, and previous methods of enumerating processes. Dec 14, 2018  As you can see cat command works, so you can at least view the file’s content. #2 Install the editor. If using a volume is not an option you can install the editor you need to use in a running container. Run the container first (this time mounting a volume is not necessary): docker run -rm -it -name=lol lol bash. And then install the editor. Dec 20, 2018  This article will show you how to set up a container with MySQL 8.0 on macOS 10.14 Mojave, but these steps will work with MySQL 5.6 or 5.7 as well as.

Programmers can write an app once and know that it'll run anywhere, every time. Businesses get an efficient way to run lots of apps on a single server without straining their hardware. And users get apps that won't sprawl out and spread files into their hard drives' nooks and crannies, nor start hogging memory and slowing down the entire computer.

How does Docker work?

Docker uses emulation to ensure that the same containerized app can run on any machine where Docker's installed. And because it emulates an operating system – usually some flavor of Linux, though you can also set it up to run enterprise versions of Windows – instead of actual chip hardware, it demands a lot less memory and processing power than traditional virtual machines like Parallels or VMware Fusion.

Unlike those apps, you can't use Docker to run Windows on your Mac – though you can run at least limited versions of Linux with it. And you can use Docker to run apps that weren't originally written for the Mac.

Once you fire up the easy-to-install Docker app, it runs in the background, and you can use the Terminal or another app called Kitematic (we'll get to that later) to install and run containerized apps.

Who is Docker for?

As mentioned above, Docker's mainly aimed at programmers who want to containerize existing apps or write new ones, and businesses and IT folks who want to use its industrial-grade software.

There are Docker versions of familiar desktop apps like Firefox, Chrome, Skype, Spotify, image editor GiMP, and audio editor Audacity. But most of these apps already have native Mac versions. Running them in containers only makes sense if you like the technical challenge, want to keep a single app from hogging all your system's memory, or want to ensure that any malware you might pick up while browsing the web stays stuck inside its container, unable to escape to the rest of your Mac.

Mac Software To See Inside Containers

As of this writing, the main reason I've found to run Docker on a Mac is Pi-hole, originally made for the Raspberry Pi. Pi-hole can automatically block Web ads across your entire home network, and Docker's the only way to get it working on a Mac without also having a Raspberry Pi.

How to install Docker on your Mac

1. Create a Docker Hub account

Docker Hub keeps track of the containers you're running (or creating) and provides a one-stop shop to find new ones. Sign up for a Docker account with a unique Docker ID, your email, and a strong password.

2. Download Docker Desktop for Mac

Once you've signed up and signed in to Docker Hub, get Docker Desktop for Mac. It's got everything you'll need to run Docker in one Mac-friendly installer. Your Mac needs to be running Mac OS Sierra or later, and have at least 4GB of RAM.

3. Install Docker Desktop on your Mac

Open the docker.dmg file you downloaded, and drag the Docker app's cartoon whale icon into your Applications folder.

4. Open and run Docker

When you run the Docker app, a little whale icon will appear on the right side of the menubar atop your screen. It'll take a few minutes to get running, and Docker may ask your permission to use services on your computer. The app will also prompt you to enter the Docker ID and password you just created.

When containers stop appearing and disappearing atop the little whale icon in the menubar, and you see a green dot at the top of the Docker menu next to 'Docker Desktop is running,' you're all set.

Consult the Preferences in the Docker menu to control how big a chunk of your hard drive Docker's allotted, and how much of your memory and CPU it's allowed to use, among other options.

5. Download and install Kitematic

Kitematic lets you install, manage, and remove your Docker containers from a single graphical interface — a lifesaver if you're not familiar or comfortable with the Terminal. You can install, and later open, Kitematic directly from the Docker app's menu:

Follow the link in that dialog box to install Kitematic. The app may ask for — you guessed it — your Docker ID and password again, just to keep track of your containers.

From Kitematic, you can search for and install new containers, and delete, edit, stop, or restart existing ones. If a container's running, Kitematic gives you an easy way to view its log files, which aren't readily visible from the Terminal. The interface is fairly intuitive, so feel free to play around and see what you can do.

In my tests, Kitematic came in most useful for deleting troublesome containers whose installation I'd somehow botched. Just find the container in the list on the left side of the Kitematic window, click the X icon next to it, and the container's gone completely, for good. You can always reinstall a package, either from the Terminal or by searching for it in Kitematic, and try again.

Where can I learn more about Docker for Mac?

Consult Docker for Mac's help files for more information about getting started, ways to test that your installation's up and running smoothly, and more things you can do with Docker. There's also a guide to teach you how to create your own containerized apps.

For less technically inclined folks, it's tough to find a good list of desktop apps that work with Docker. Docker Hub doesn't break desktop apps into their own category, but Jessie Frazelle compiled this list in 2015.

Besides Pi-hole, do you have any favorite Docker containers that might benefit everyday Mac users? Ship them our way in the comments below.

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By Adela D. Louie, Last updated: December 28, 2019

When you try to upgrade your Mac device to the macOS 10.13 High Sierra, you will be able to notice that there is an “Other Volume in Container” in your Storage section and an “Other Volume” category as well which is located in your Disk Utility on your Mac device.

Now, many of us are very fond of using our Mac. This goes especially if we are working and we needed some documents to be done for a certain presentation. Or you are still studying and you needed some paper works to be done for school.

And because of the way we use our Mac is our everyday life, it is more likely that you will get a notification that says “your disk is almost full”. This is because the other volume in the container is having a lot of gigabytes of the storage of your Mac. And we say “a lot” we mean hundreds of gigabytes that is occupied on your Mac device.

Some other users notice that the other volumes in the container are getting huge. And the downfall of which is that they do not know what are these other volumes in container means. Which is one reason as to why they do not know what to do or what are the things that they will be needing to remove from their Mac for them to get rid of this?

That is why in this article, we are going to show what is other volumes in container means and at the same time, how you can manage and get rid of this on your Mac.

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Part 1: What Does it Mean by Other Volumes in Container?

As of the AFP, there is a new system of files that Apple had released to the new macOS High Sierra version. This is a container that is said to be just like the partition in the file system. A particular disk on your Mac comes with several containers and one container that comes with several volumes virtually. These are the ones that also occupies space in your storage.

Some examples of a macOS standard startup APFS container are as follows.

• The Preboot – which is known as the volume managing the boot that is made by the macOS High Sierra update. This is for it to support the booting process of the Macintosh HD and is usually hidden.
• The VM or the Virtual Machine – this is the volume wherein it is the one that is supplementing your RAM for you to be able to save some files such as your swapfile or your sleepimage which is known to be a bit large to run by your RAM. This is the reason as to why the Virtual Machine is the one that is taking up most of your storage space on your Mac.
• Recovery – this is volume wherein it has your Mac’s recovery system. You can boot this by pressing the keys CMD +R while your startup is running.
• Macintosh HD – This is where the volume of your macOS system is installed. This is the one that is shown to you on your Disk Utility and is labeled as Macintosh HD.

So with that, the meaning of other volumes in a container is the Preboot, VM, and Recovery in APFS. Other volumes had been said that it cannot be removed from your Mac. It is because these are files that are needed by your Mac for it to be able to function how it used to be.

Since that we now know the meaning of other volumes in the container, it still does not imply that we can have them removed on our Mac easily. There is no chance of getting rid of other volumes in a container on our Mac as these are files that are needed by our Mac to run.

But on the other hand, there is a way for us to prevent other volumes in the container from growing. This way, you will be able to decrease the space that is occupied by the other volumes.

Part 2: Preventing Your Other Volumes in Container from Getting Full

As we have said earlier, we cannot get rid of the other volumes in a container on Mac completely. However, we can do something to prevent it from getting full and for you to clear out some space for your storage.

And with that, you can use the FoneDog PowerMyMac for you to be able to get rid of those system junk such as your caches, your iPhoto junk, similar photos, email junk, clean up your Trash Bin, your iTunes Junk, your Large and Old Files. You can also use this powerful application for you to find all of the duplicate files that you have such as photos, videos, and documents.

The FoneDog PowerMyMac will be able to help you in getting more space for your storage on your Mac and will prevent you from getting a warning of “your disk is almost full”. And for you to be able to do this, here is a quick example on how you can clean up your Mac and prevent your other volumes in the container from getting full.

Step 1: Start the FoneDog PowerMyMac on Mac

After installing the FoneDog PowerMyMac on your Mac, go ahead and click on the app and have it run on your Mac. And once that you are on the main page of the application, you will be able to view the system status of your Mac by default.

Step 2: Select Cleaner

Still, on the main page of the FoneDog PowerMyMac, you will see three different options that you can choose from. This is located at the top of your screen. From there, go ahead and simply click on the Cleaner for you to choose it.

Step 3: Choose Any Functionality You Like

On the Cleaner page, there are several functionalities that the FoneDog PowerMyMac has to offer. You can choose any of those functionalities on your screen but if you want to clean up all of your caches on your Mac then you can start by clicking on System Junk.

Step 4: Scan Your Mac

After choosing a functionality, the application will then require you to have a scan on your Mac. And for you to do this, just go ahead and simply click on the Scan button and process will then start. So just wait for the scanning process to finish.

Step 5: See the Results

When the Scanning process is complete, all you need to do now is to hit on the View button. This way, you will be able to see the result of the scanning process. Then on the left side of your screen, there are categories of caches that you can clean up.

Step 6: Choose Files to Delete

On the list of categories located at the left side of your screen, go ahead and choose the ones that you would like to clean. You can choose from System Cache, Application, Localization, User Logs, and System Logs.

And if you click on one of those categories, files that it contains will then show up on the right hand of your screen. From those files that you see, go ahead and mark down the ones that you want to remove by clicking on them.

Step 7: Delete Selected Files

After choosing all of the files that you want to remove from your Mac, go ahead and simply click on the Clean button which is located at the lower right-hand corner of your screen. Then a confirmation message will show up on your screen as well. From that message, go ahead and hit on the Confirm button and the cleaning process will then start.

So that is it! You were able to remove all of the caches that you have on your Mac. And aside from that, you can also choose the other functions that in under the Cleaner module. This way, you will be able to prevent your other volumes in the container from getting full.

Part 3: Removing Other Volumes in Container on Mac’s Storage

Some users said that they were able to regain space for their storage from their other volumes in container. And we hope that one of these solutions will work on your part.

Solution #1: Uninstall Any Third-Party Apps That Seems to be Suspicious

There might be some suspicious apps that you have on your Mac that is eating up space on your Mac. So in that case, you need to get rid of those suspicious apps that you have on your Mac.

So the very first thing that you need to do is to proceed to your Activity Monitor and then go to the Memory tab. From there, you will be able to see any processes that you might find an application that is eating up a huge space on your storage. So once that you see a huge process that is eating up the storage space of your Mac, then you have to end that certain process.

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After that, you can go ahead and simply check on the other volume in the container were able to give you the space for your storage. And then, go ahead and simply uninstall the application eating up more space on your Mac device. But you have to remember, when you try to uninstall a certain application on your Mac, you have to make sure that you were also able to delete all of the files that are associated with the said app.

Solution #2: Make A New Account to Solve Other Volumes in Container on Mac

Aside from uninstalling the app that is eating up a huge space on your Mac, you can also try to make a new account. And once that you are done doing this, you can go ahead and use that new account to sign in to your Mac device This process had been said that once you have created a new account, then the other volumes in the container will reduce the space that it is taking up.

So, for you to be able to make a new account for your Mac, here are the steps that you will be needing to follow.

• Step 1: Go ahead and navigate to your Mac’s System Preferences.
• Step 2: And then from there, go ahead and simply choose Users & Groups.
• Step 3: So from there, simply choose the lock icon and then key in your password once that your Mac device asks you to do so.
• Step 4: Then simply click on the Add button (+) which is found when you are in Login Options.
• Step 5: And lastly, from the Login Options should not be added to this school.

And once that you are done with the method that we have shown you above, go ahead and log in your new account on your Mac. And after that, simply check on the other volumes in container.

Part 4: Conclusion

As you can see, other volumes in Mac is very much easy to find. Now that you were able to know how to see the other volumes in the container, it is then time for you to be able to do something for you to prevent your Mac’s disk from getting fool.

And with that, we have already given you the best ways for you to prevent the other volumes in the container from getting full. You can make use of the FoneDog PowerMyMac to make your life easier as cleaning up all the files that you no longer need is only a one-click away.

And with the help of the FoneDog PowerMyMac, you were able to clean up your Mac. And because of this, you will be able to prevent the other volumes in the container from getting full since there is no way that you can remove the other volumes in the container completely from your Mac. So this is one way for you to keep your Mac running better and at the same time, gain some more space for storage.