[debian-mysql] Bug#920643: mariadb-server-10.3: mariadb won't start when running inside an lxc container when running on debian testing

[Matthew Darwin]

Package: mariadb-server-10.3
Version: 1:10.3.12-2
Severity: important

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

Upgrade to latest mariadb package on debian testing; within lxc continer. Previous package was working fine...

on the container with the database:

Jan 27 14:17:42 db systemd[1]: Starting MariaDB 10.3.12 database server...
Jan 27 14:17:42 db systemd[278]: mariadb.service: Failed to set up mount namespacing: Permission denied
Jan 27 14:17:42 db systemd[278]: mariadb.service: Failed at step NAMESPACE spawning /usr/bin/install: Permission denied

on the host:
(not sure if it is 100% related)

Jan 27 14:16:21 server1 kernel: [   23.841650] audit: type=1400 audit(1548616581.737:21): apparmor="DENIED" operation="mount" info="failed flags match" error=-13 profile="lxc-container-default-cgns" name="/" pid=1423 comm="(rm)" flags="rw, rslave"


See possibly related: https://github.com/lxc/lxc/pull/2758

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-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mariadb-server-10.3 depends on:
ii  adduser                   3.118
ii  debconf [debconf-2.0]     1.5.70
ii  galera-3                  25.3.23-1
ii  gawk                      1:4.2.1+dfsg-1
ii  iproute2                  4.20.0-2
ii  libc6                     2.28-5
ii  libdbi-perl               1.642-1+b1
ii  libpam0g                  1.1.8-4
ii  libssl1.1                 1.1.1a-1
ii  libstdc++6                8.2.0-14
ii  lsb-base                  10.2018112800
ii  lsof                      4.91+dfsg-1
ii  mariadb-client-10.3       1:10.3.12-2
ii  mariadb-common            1:10.3.12-2
ii  mariadb-server-core-10.3  1:10.3.12-2
ii  passwd                    1:4.5-1.1
ii  perl                      5.28.1-3
ii  psmisc                    23.2-1
ii  rsync                     3.1.3-2
ii  socat                     1.7.3.2-2
ii  zlib1g                    1:1.2.11.dfsg-1

Versions of packages mariadb-server-10.3 recommends:
ii  libhtml-template-perl  2.97-1

Versions of packages mariadb-server-10.3 suggests:
pn  mailx           <none>
pn  mariadb-test    <none>
pn  netcat-openbsd  <none>
pn  tinyca          <none>

-- debconf information excluded