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[SOLVED] Msg="standard_init_linux.go:207: exec user process caused \"permission denied\""

Hi,

on one of my Ubuntu machines, I cannot install any plugin.
it all ends with:
error response from daemon: dial unix /run/docker/plugins/xxx/yyy.sock: connect: no such file or directory

the problem is that the plugin folder nor socket is not created.

I tried to see in the docker log what’s going on still no idea
what I can see is
level=error msg="standard_init_linux.go:207: exec user process caused \"permission denied\"" plugin=xxx

so docker or some part of docker does not have permission to something,
possibly to /run/docker/plugins/
but my permissions are the same as on my other machines and I haven’t noticed any problems there

Docker version 18.09.4, build d14af54
Ubuntu 16.04.05
4.4.0-142-generic

fixed

my /var/lib/docker was mounted with noexec
apparently, it still allows running containers but does not execute plugins