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add lxc.console.logpath

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v2: add get_config_item

clear_config_item is not supported, as it isn't for lxc.console, bc
you can do 'lxc.console.logfile =' to clear it.  Likewise save_config
is not needed because the config is now just written through the
unexpanded char*.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
This commit is contained in:
Serge Hallyn 2014-08-06 22:39:45 +00:00 committed by Stéphane Graber
parent 281b843648
commit 96f15ca18c
2 changed files with 24 additions and 3 deletions
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15
doc/lxc.container.conf.sgml.in
View File

@ -536,12 +536,23 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
<variablelist>
<varlistentry>
<term>
<option>lxc.console</option>
<option>lxc.console.logfile</option>
</term>
<listitem>
<para>
Specify a path to a file where the console output will
be written. The keyword 'none' will simply disable the
be written.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>lxc.console</option>
</term>
<listitem>
<para>
Specify a path to a device to which the console will be
attached. The keyword 'none' will simply disable the
console. This is dangerous once if have a rootfs with a
console device file where the application can write, the
messages will fall in the host.

10
src/lxc/confile.c
View File

@ -89,6 +89,7 @@ static int config_network_ipv6_gateway(const char *, const char *, struct lxc_co
static int config_cap_drop(const char *, const char *, struct lxc_conf *);
static int config_cap_keep(const char *, const char *, struct lxc_conf *);
static int config_console(const char *, const char *, struct lxc_conf *);
static int config_console_logfile(const char *, const char *, struct lxc_conf *);
static int config_seccomp(const char *, const char *, struct lxc_conf *);
static int config_includefile(const char *, const char *, struct lxc_conf *);
static int config_network_nic(const char *, const char *, struct lxc_conf *);
@ -146,6 +147,7 @@ static struct lxc_config_t config[] = {
{ "lxc.network", config_network },
{ "lxc.cap.drop", config_cap_drop },
{ "lxc.cap.keep", config_cap_keep },
{ "lxc.console.logfile", config_console_logfile },
{ "lxc.console", config_console },
{ "lxc.seccomp", config_seccomp },
{ "lxc.include", config_includefile },
@ -1604,6 +1606,12 @@ static int config_console(const char *key, const char *value,
return config_path_item(&lxc_conf->console.path, value);
}
static int config_console_logfile(const char *key, const char *value,
struct lxc_conf *lxc_conf)
{
return config_path_item(&lxc_conf->console.log_path, value);
}
int append_unexp_config_line(const char *line, struct lxc_conf *conf)
{
size_t len = conf->unexpanded_len, linelen = strlen(line);
@ -2261,6 +2269,8 @@ int lxc_get_config_item(struct lxc_conf *c, const char *key, char *retv,
return lxc_get_cgroup_entry(c, retv, inlen, key + 11);
else if (strcmp(key, "lxc.utsname") == 0)
v = c->utsname ? c->utsname->nodename : NULL;
else if (strcmp(key, "lxc.console.logfile") == 0)
v = c->console.log_path;
else if (strcmp(key, "lxc.console") == 0)
v = c->console.path;
else if (strcmp(key, "lxc.rootfs.mount") == 0)