apparmor profile

No network connectivity from container. Journal shows:

audit: type=1400 audit(1634036792.582:254): apparmor="DENIED" operation="create" profile="docker-default" pid=32133 comm="ping" family="inet" sock_type="dgram" protocol=17 requested_mask="create" denied_mask="create"

Reason: default docker-default app armor profile is appliet. File doesn't exists in /etc/apparmor.d/ so it cannot be disabled. To woraround this issue, needs to create file: <file /etc/apparmor.d/docker-default> #include <tunables/global>

  profile docker-default flags=(attach_disconnected, mediate_deleted) {

    #include <abstractions/base>

    ptrace peer=@{profile_name},

    network,
    capability,
    file,
    umount,

    deny @{PROC}/* w,  # deny write for all files directly in /proc (not in a subdir)
    # deny write to files not in /proc/<number>/** or /proc/sys/**
    deny @{PROC}/{[^1-9],[^1-9][^0-9],[^1-9s][^0-9y][^0-9s],[^1-9][^0-9][^0-9][^0-9]*}/** w,
    deny @{PROC}/sys/[^k]** w,  # deny /proc/sys except /proc/sys/k* (effectively /proc/sys/kernel)
    deny @{PROC}/sys/kernel/{?,??,[^s][^h][^m]**} w,  # deny everything except shm* in /proc/sys/kernel/
    deny @{PROC}/sysrq-trigger rwklx,
    deny @{PROC}/kcore rwklx,
    deny @{PROC}/mem rwklx,
    deny @{PROC}/kmem rwklx,

    deny mount,

    deny /sys/[^f]*/** wklx,
    deny /sys/f[^s]*/** wklx,
    deny /sys/fs/[^c]*/** wklx,
    deny /sys/fs/c[^g]*/** wklx,
    deny /sys/fs/cg[^r]*/** wklx,
    deny /sys/firmware/** rwklx,
    deny /sys/kernel/security/** rwklx,
  }

</code>

and then switch profile to complain mode or disable it (aa-disable docker-default)