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If no configuration file is specified or the container was not created before.

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The lxc-execute command will automatically create a new container and destroy
it when it dies. If a configuration file is specified and the container does
not exists, the container is created with the configuration file and destroyed
when it dies.
This commit is contained in:
dlezcano 2008-09-19 09:29:58 +00:00
parent 5e30dbead0
commit 7b40d70f6b
2 changed files with 53 additions and 9 deletions
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2
src/lxc/Makefile.am
View File

@ -71,7 +71,7 @@ lxc_start_LDADD = liblxc.la
lxc_stop_SOURCES = lxc_stop.c lxc_stop_SOURCES = lxc_stop.c
lxc_stop_LDADD = liblxc.la lxc_stop_LDADD = liblxc.la
lxc_execute_SOURCES = lxc_execute.c lxc_execute_SOURCES = lxc_execute.c lxc_config.c lxc_config.h
lxc_execute_LDADD = liblxc.la lxc_execute_LDADD = liblxc.la
lxc_monitor_SOURCES = lxc_monitor.c lxc_monitor_SOURCES = lxc_monitor.c

60
src/lxc/lxc_execute.c
View File

@ -21,32 +21,44 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/ */
#include <stdio.h> #include <stdio.h>
#include <errno.h>
#include <libgen.h> #include <libgen.h>
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
#include <sys/types.h> #include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <lxc/lxc.h> #include <lxc/lxc.h>
#include <lxc/lxc_config.h>
void usage(char *cmd) void usage(char *cmd)
{ {
fprintf(stderr, "%s <command>\n", basename(cmd)); fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n"); fprintf(stderr, "\t -n <name> : name of the container\n");
fprintf(stderr, "\t [-f <confile>] : path of the configuration file\n");
_exit(1); _exit(1);
} }
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
char opt; char opt;
char *name = NULL; char *name = NULL, *file = NULL;
char **args; char **args;
char path[MAXPATHLEN];
int nbargs = 0; int nbargs = 0;
int autodestroy = 0;
int ret = 1;
struct lxc_conf lxc_conf;
while ((opt = getopt(argc, argv, "n:")) != -1) { while ((opt = getopt(argc, argv, "f:n:")) != -1) {
switch (opt) { switch (opt) {
case 'n': case 'n':
name = optarg; name = optarg;
break; break;
case 'f':
file = optarg;
break;
} }
nbargs++; nbargs++;
@ -57,12 +69,44 @@ int main(int argc, char *argv[])
args = &argv[optind]; args = &argv[optind];
argc -= nbargs; argc -= nbargs;
if (lxc_execute(name, argc, args, NULL, NULL)) { if (lxc_config_init(&lxc_conf)) {
fprintf(stderr, "failed to start '%s'\n", name); fprintf(stderr, "failed to initialize the configuration\n");
return 1; goto out;
} }
return 0; if (file) {
if (lxc_config_read(file, &lxc_conf)) {
fprintf(stderr, "invalid configuration file\n");
goto out;
}
}
if (access(path, R_OK)) {
if (lxc_create(name, &lxc_conf)) {
fprintf(stderr, "failed to create the container '%s'\n", name);
goto out;
}
autodestroy = 1;
}
if (lxc_execute(name, argc, args, NULL, NULL)) {
fprintf(stderr, "failed to execute '%s'\n", name);
goto out;
}
ret = 0;
out:
if (autodestroy) {
if (lxc_destroy(name)) {
fprintf(stderr, "failed to destroy '%s'\n", name);
ret = 1;
}
}
return ret;
} }