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Accepted
muru
Asked: 2017-03-17 23:28:36 +0800 CST

How do I build a snap in an isolated environment?

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While building Debian packages, pbuilder (and similar tools) help in building packages in an isolated environment, so that odd settings in my system don't cause problems in building:

pbuilder aims to be an easy-to-setup system for auto-building Debian packages inside a clean-room environment, so that it is possible to verify that a package can be built on most Debian installations. The clean-room environment is achieved through the use of a base chroot image, so that only minimal packages will be installed inside the chroot.

Is there an equivalent for snapcraft?

Context: I just had some locale problems interfere with building a snap for Cassandra. I'd been getting locale errors that I am too lazy to look into, and during the build process, javadoc failed because of Unicode characters in some files. Using C.UTF-8 as the locale fixed that:

export LC_ALL=C.UTF-8
snapcraft

However, my locale shouldn't affect building packages, snappy or Debian. Something like pbuilder would be useful here.

packaging

1 Answers

  1. Best Answer

    You certainly can. snapcraft has a "cleanbuild" option which can either (default) build locally inside an lxd container, or remotely (via the --remote option).

    So:-

    Build in a local lxd (needs the lxd package to be installed, and networking setup for LXD):

    snapcraft cleanbuild

    Build in a remote lxd:

    snapcraft cleanbuild --remote remotemachine

    I followed this guide to setup remote building on my home server. Works well!

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