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

src/lxc/Makefile.am

@@ -71,7 +71,7 @@ lxc_start_LDADD = liblxc.la
 lxc_stop_SOURCES = lxc_stop.c
 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_monitor_SOURCES = lxc_monitor.c

src/lxc/lxc_execute.c

@@ -21,32 +21,44 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 #include <stdio.h>
+#include <errno.h>
 #include <libgen.h>
 #include <string.h>
 #include <unistd.h>
 #include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
 
 #include <lxc/lxc.h>
+#include <lxc/lxc_config.h>
 
 void usage(char *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);
 }
 
 int main(int argc, char *argv[])
 {
 	char opt;
-	char *name = NULL;
+	char *name = NULL, *file = NULL;
 	char **args;
+	char path[MAXPATHLEN];
 	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) {
 		case 'n':
 			name = optarg;
 			break;
+		case 'f':
+			file = optarg;
+			break;
 		}
 
 		nbargs++;
@@ -57,12 +69,44 @@ int main(int argc, char *argv[])
 
 	args = &argv[optind];
 	argc -= nbargs;
+	
+	if (lxc_config_init(&lxc_conf)) {
+		fprintf(stderr, "failed to initialize the configuration\n");
+		goto out;
+	}
+
+	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 start '%s'\n", name);
-		return 1;
+		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 0;
+	return ret;
 }