storlets/scripts/restart_docker_container.c

71 lines
2.5 KiB
C

/*----------------------------------------------------------------------------
* Copyright IBM Corp. 2015, 2015 All Rights Reserved
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* Limitations under the License.
* ---------------------------------------------------------------------------
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
/*
* Stop and Run a docker container using:
* docker stop <container name>
* docker run --name <container name> -d -v /dev/log:/dev/log -v <mount dir 1> -v <mount dir 2> -i -t <image> --net='none'
* <container name> - The name of the container to stop / to start
* <image name> - the name of the image from which to start the container
* <mount dir 1> - The directory where the named pipes are placed. Typically mounted to /mnt/channels in the container
* <mount dir 2> - The directory where the storlets are placed. Typically mounted to /home/swift in the container
*/
int main(int argc, char **argv) {
char command[4096];
char container_name[256];
char container_image[256];
char mount_dir1[1024];
char mount_dir2[1024];
if (argc != 5) {
fprintf(stderr, "Usage: %s container_name container_image mount_dir1 mount_dir2\n",
argv[0]);
return 1;
}
snprintf(container_name,(size_t)256,"%s",argv[1]);
snprintf(container_image,(size_t)256,"%s",argv[2]);
snprintf(mount_dir1,(size_t)1024, "%s", argv[3]);
snprintf(mount_dir2,(size_t)1024, "%s", argv[4]);
int ret;
setresuid(0,0,0);
setresgid(0,0,0);
sprintf(command,"/usr/bin/docker stop -t 1 %s",container_name);
ret = system(command);
sprintf(command,"/usr/bin/docker rm %s",container_name);
ret = system(command);
sprintf(command,
"/usr/bin/docker run --net=none --name %s -d -v /dev/log:/dev/log -v %s -v %s -i -t %s",
container_name,
mount_dir1,
mount_dir2,
container_image);
ret = system(command);
if (ret)
return(EXIT_FAILURE);
return(EXIT_SUCCESS);
}