Docker Volumes Management: Difference between revisions
m Стадий: 3 [Фаза:Разработване, Статус:Разутвърден]; Категория:Containers |
|||
| Line 34: | Line 34: | ||
== Examples == | == Examples == | ||
<syntaxhighlight lang="antlr-python" class="code-continue mlw-shell-gray"> | '''In Example 1''' the containers directory <code>:/data</code> will be bound (mounted) to the directory <code>./base</code> within the current directory where the <code>docker-compose.yml</code> is located. In this case no volume is specified.<syntaxhighlight lang="antlr-python" class="code-continue mlw-shell-gray"> | ||
example 1 | example 1 | ||
</syntaxhighlight><syntaxhighlight lang="shell" class="code-continue"> | </syntaxhighlight><syntaxhighlight lang="shell" class="code-continue"> | ||
| Line 47: | Line 47: | ||
- ./base:/data | - ./base:/data | ||
</syntaxhighlight> | </syntaxhighlight>'''In Example 2''' the directory used as a volume is <code>/var/lib/docker/volumes/container-name_base/</code> and it will be automatically created unless some additional options are specified within the <code>volumes:</code> section. The actual directory <code>:/data</code> of the container will be bound to <code>/var/lib/docker/volumes/container-name_base/_data</code><syntaxhighlight lang="antlr-python" class="code-continue mlw-shell-gray"> | ||
</ | |||
example 2 | example 2 | ||
</syntaxhighlight><syntaxhighlight lang="shell" class="code-continue"> | </syntaxhighlight><syntaxhighlight lang="shell" class="code-continue"> | ||
| Line 66: | Line 63: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
== References == | == References == | ||
Revision as of 10:04, 24 May 2023
Basic commands
docker volume
Usage: docker volume COMMAND
Manage volumes
Commands:
create Create a volume
inspect Display detailed information on one or more volumes
ls List volumes
prune Remove all unused local volumes
rm Remove one or more volumes
Run 'docker volume COMMAND --help' for more information on a command.
docker volume create volume_name
docker volume ls
docker volume inspect volume_name
sudo ls -la /var/lib/docker/volumes/
docker volume (rm|prune) volume_name
Explanations
Note when you are using docker compose, unless specify path in the left side on the services: container-name: volumes: section docker will automatically create a volume /var/lib/docker/volumes/ named after the container-name underscore _ and the name of the volume.
Examples
In Example 1 the containers directory :/data will be bound (mounted) to the directory ./base within the current directory where the docker-compose.yml is located. In this case no volume is specified.
example 1
docker-compose.yml
version: "3"
services:
container-name:
image: image_name
volumes:
- ./base:/data
In Example 2 the directory used as a volume is /var/lib/docker/volumes/container-name_base/ and it will be automatically created unless some additional options are specified within the volumes: section. The actual directory :/data of the container will be bound to /var/lib/docker/volumes/container-name_base/_data
example 2
docker-compose.yml
version: "3"
services:
container-name:
image: image_name
volumes:
- base:/data
volumes:
base:
References
- Docker: Reference > Compose file reference > Compose specification > Volumes top-level element
