UPDATE Thanks for @degelf's advice. Here is the shell script. #!/bin/bash if $# -lt 1 then cat Docker image on a remote registry.
- Remove Docker Container How to Run Nginx inside Docker Container. In this part we will concentrate on how you can run and access a network service, such as an Nginx web server, inside Docker, using the ubuntu-nginx image created earlier where the Nginx daemon was installed.
- Between RHEL 6, RHEL 7 and RHEL 8 there are numerous changes in tools, commands and workflows. Included the possible difference between them in this article. We have gone through several Red Hat articles and RHEL 6, 7 and 8 Release Notes to gather this information. We have added a comparison table based on category.
Docker Rhel 7 Image Editor
You can change Docker’s storage base directory (where container and images go) using the -g
option when starting the Docker daemon.
Ubuntu/Debian: edit your
/etc/default/docker
file with the -g option:DOCKER_OPTS='-dns 8.8.8.8 -dns 8.8.4.4 -g /mnt'
Fedora/Centos: edit
/etc/sysconfig/docker
, and add the -g option in the other_args variable: ex.other_args='-g /var/lib/testdir'
. If there’s more than one option, make sure you enclose them in ' '. After a restart, (service docker restart) Docker should use the new directory.
Docker Hub Rhel 7 Image
Using a symlink is another method to change image storage.
Caution - These steps depend on your current /var/lib/docker being an actual directory (not a symlink to another location).
Minimal Rhel 7 Docker Image
- Stop docker:
service docker stop
. Verify no docker process is runningps faux
- Double check docker really isn’t running. Take a look at the current docker directory:
ls /var/lib/docker/
2b) Make a backup -tar -zcC /var/lib docker > /mnt/pd0/var_lib_docker-backup-$(date +%s).tar.gz
- Move the
/var/lib/docker
directory to your new partition:mv /var/lib/docker /mnt/pd0/docker
- Make a symlink:
ln -s /mnt/pd0/docker /var/lib/docker
- Take a peek at the directory structure to make sure it looks like it did before the mv:
ls /var/lib/docker/
(note the trailing slash to resolve the symlink) - Start docker back up
service docker start
- restart your containers