lxc-monitord: exit when got a quit command

lxc-monitor has an option to tell lxc-monitord to quit.

```
~/lxc (master) # lxc-monitor --help
lxc-monitor monitors the state of the NAME container

Options :
  -n, --name=NAME   NAME of the container
                    NAME may be a regular expression
  -Q, --quit        tell lxc-monitord to quit
```
But it does not work. This patch fix that.
Signed-off-by: 0x0916 <w@laoqinren.net>

wipe all references lxc.network.{[i]}.* and replace with lxc.net.[i].*

`lxc_clear_nic` can not clear the nic, because it will not found
the right `netdev`.

testcase from get_item.c

```
313         if (!c->set_config_item(c, "lxc.network.hwaddr", "00:16:3e:xx:xx:xx")) {
314                 fprintf(stderr, "%d: failed to set network.hwaddr\n", __LINE__);
315                 goto out;
316         }
317         if (!c->set_config_item(c, "lxc.network.ipv4", "10.2.3.4")) {
318                 fprintf(stderr, "%d: failed to set ipv4\n", __LINE__);
319                 goto out;
320         }
321
322         ret = c->get_config_item(c, "lxc.network.0.ipv4", v2, 255);
323         if (ret <= 0) {
324                 fprintf(stderr, "%d: lxc.network.0.ipv4 returned %d\n", __LINE__, ret);
325                 goto out;
326         }
327         if (!c->clear_config_item(c, "lxc.network.0.ipv4")) {
328                 fprintf(stderr, "%d: failed clearing all ipv4 entries\n", __LINE__);
329                 goto out;
330         }
331         ret = c->get_config_item(c, "lxc.network.0.ipv4", v2, 255);
332         if (ret != 0) {
333                 fprintf(stderr, "%d: after clearing ipv4 entries get_item(lxc.network.0.ipv4 returned %d\n", __LINE__, ret);
334                 goto out;
335         }
```

line `327` will failed to clear nic, and line `333` give the error.
Signed-off-by: 0x0916 <w@laoqinren.net>

Signed-off-by: 0x0916 <w@laoqinren.net>

Signed-off-by: 0x0916 <w@laoqinren.net>

Signed-off-by: 0x0916 <w@laoqinren.net>

`lxc_config_net_hwaddr` return true if the config entry
is `lxc.network.hwaddr` or `lxc.net.[i].hwaddr`, `lxc.network.[i].hwaddr`
Signed-off-by: 0x0916 <w@laoqinren.net>

Signed-off-by: 0x0916 <w@laoqinren.net>

This patch wipe all references to lxc.network{[i]}.*
and replace with lxc.net.{[i]}.* in templates, documentation
and configuration files.
Signed-off-by: 0x0916 <w@laoqinren.net>

confile: free netdev->downscript

Signed-off-by: 0x0916 <w@laoqinren.net>

refactor confile code

Signed-off-by: 0x0916 <w@laoqinren.net>

confile: prepare for 2.1.

remove the `__func__` macro

API doc: update note for get_config_item

Our logging function will always spew out the function name.
Signed-off-by: 0x0916 <w@laoqinren.net>

Fix issue: https://github.com/lxc/lxc/issues/505Signed-off-by: 0x0916 <w@laoqinren.net>

default to CentOS 7

templates/debian: add aarch64 → arm64 mapping

use altarch mirror for CentOS on arches other than i386 and x86_64

CentOS only has i386 and x86_64 listed in mirrorlist.centos.org,
use http://mirror.centos.org/altarch/ for all other arches instead

See: https://bugs.centos.org/view.php?id=11250Signed-off-by: Evgeni Golov <evgeni@debian.org>

Signed-off-by: Evgeni Golov <evgeni@debian.org>

uname -m reports aarch64, but Debian calls the arch arm64
Signed-off-by: Evgeni Golov <evgeni@debian.org>

Use strerror(errno) instead of %m 

update .gitignore

Signed-off-by: 0x0916 <w@laoqinren.net>

Signed-off-by: 0x0916 <w@laoqinren.net>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

- lxc.aa_profile => lxc.apparmor.profile
- lxc.aa_allow_incomplete => lxc.apparmor.allow_incomplete
- lxc.se_context => lxc.selinux.context

The legacy keys will be kept around until LXC 3.0 and then will be removed.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

fix memory and resource leak

Revert "Add a prefix to the lxc.pc"

Signed-off-by: 0x0916 <w@laoqinren.net>

This reverts commit 758243d8.
Signed-off-by: 0x0916 <w@laoqinren.net>

network: new network parser part II

Fix memory leak of 'lxc_tty_state'

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Li Feng <lifeng68@huawei.com>