HOWTO: Host your own SNAP store!

SNAPs are the cross-distro, cross-cloud, cross-device Linux packaging format of the future.  And we’re already hosting a fantastic catalog of SNAPs in the SNAP store provided by Canonical.  Developers are welcome to publish their software for distribution across hundreds millions of Ubuntu servers, desktops, and devices.

Several people have asked the inevitable open source software question, “SNAPs are awesome, but how can I stand up my own SNAP store?!?”

The answer is really quite simple…  SNAP stores are really just HTTP web servers!  Of course, you can get fancy with branding, and authentication, and certificates.  But if you just want to host SNAPs and enable downstream users to fetch and install software, well, it’s pretty trivial.

In fact, Bret Barker has published an open source (Apache License) SNAP store on GitHub.  We’re already looking at how to flesh out his proof-of-concept and bring it into snapcore itself.

Here’s a little HOWTO install and use it.

First, I launched an instance in AWS.  Of course I could have launched an Ubuntu 16.04 LTS instance, but actually, I launched a Fedora 24 instance!  In fact, you could run your SNAP store on any OS that currently supports SNAPs, really, or even just fork this GitHub repo and install it stand alone..  See snapcraft.io.

Now, let’s find and install a snapstore SNAP.  (Note that in this AWS instance of Fedora 24, I also had to ‘sudo yum install squashfs-tools kernel-modules’.

At this point, you’re running a SNAP store (webserver) on port 5000.

Now, let’s reconfigure snapd to talk to our own SNAP store, and search for a SNAP.

Finally, let’s install and inspect that SNAP.<

How about that?  Easy enough!

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About the author

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Dustin Kirkland is part of Canonical's Ubuntu Product and Strategy team, working for Mark Shuttleworth, and leading the technical strategy, road map, and life cycle of the Ubuntu Cloud and IoT commercial offerings. Formerly the CTO of Gazzang, a venture funded start-up acquired by Cloudera, Dustin designed and implemented an innovative key management system for the cloud, called zTrustee, and delivered comprehensive security for cloud and big data platforms with eCryptfs and other encryption technologies. Dustin is an active Core Developer of the Ubuntu Linux distribution, maintainer of 20+ open source projects, and the creator of Byobu, DivItUp.com, and LinuxSearch.org. A Fightin' Texas Aggie Class of 2001 graduate, Dustin lives in Austin, Texas, with his wife Kim, daughters, and his Australian Shepherds, Aggie and Tiger. Dustin is also an avid home brewer.

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