On 02/02/17 22:35, Loïc Minier wrote:
There are a bunch of Docker images providing snapcraft
<https://hub.docker.com/search/?isAutomated=0&isOfficial=0&page=1&pullCount=0&q=snapcraft&starCount=0>,
unfortunately they are all behind. These should be autobuilt instead of manually
updated, in the mean time I suggest you build your own (relatively easy)
<https://hub.docker.com/r/sergiusens/snapcraft/~/dockerfile/>. Otherwise,
Didier's image <https://hub.docker.com/r/didrocks/snapcraft/builds/> is only a
month old and should include a snapcraft with experimental support for classic
snaps.
Thanks Loïc :-)
Images like the ones you point to match pretty much what I came up with myself,
but I ran into difficulties installing the core snap (required for building
classic snaps).
My Dockerfile was as follows:
##################################################
FROM ubuntu:16.04
RUN apt-get update
RUN apt-get --assume-yes dist-upgrade
RUN apt-get --assume-yes install snapd snapcraft
RUN snap install core
##################################################
... and when building the image, it would fall over at the last step:
Step 5/5 : RUN snap install core
---> Running in fb52514fbd30
2017/02/05 13:59:56.811387 main.go:220: WARNING: cannot create syslog logger
error: cannot communicate with server: Post http://localhost/v2/snaps/core: dial
unix /run/snapd-snap.socket: connect: no such file or directory
I would get a similar error if I tried deleting the last line of the Dockerfile
but running `snap install core` manually in the container:
$ sudo docker run -v $PWD:$PWD -w $PWD [my-image-id] snap install core &&
snapcraft clean && snapcraft
2017/02/05 14:07:35.998824 main.go:220: WARNING: cannot create syslog logger
error: cannot communicate with server: Post http://localhost/v2/snaps/core: dial
unix /run/snapd-snap.socket: connect: no such file or directory
I presume I'm missing something here in terms of setting up sockets for the
image/container?
Thanks & best wishes,
-- Joe
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