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68 lines
1.5 KiB
Markdown
68 lines
1.5 KiB
Markdown
---
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title: Docker Volumes
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slug: /deployment/docker/volumes
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---
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Named volumes can persist data after we restart or remove a container. Also, it’s accessible by other containers.
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For example:
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```yaml
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version: 3.8
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services:
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db:
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image:mysql
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restart:always
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environment:
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MYSQL_ROOT_PASSWORD: root
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MYSQL_DATABASE: test_db
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ports:
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- "3306:3306"
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volumes:
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- db_data:/var/lib/mysql
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volumes:
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db_data
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```
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Here, the first field is a unique name of the volume on a host machine. The second field is the path in the container.
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Following are the changes we have to do while mounting the volume for ingestion in OpenMetadata
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## Update or add the volume in the docker-compose.yml file
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Open the file `docker-compose.yml` downloaded from the Release page.
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First, define the volumes at the top level of the file. Example:
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```commandline
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volumes:
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ingestion-volume-dag-airflow:
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ingestion-volume-dags:
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ingestion-volume-tmp:
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```
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Then, add them in the service. Example:
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```commandline
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- ingestion-volume-dag-airflow:/airflow/dag_generated_configs
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- ingestion-volume-dags:/airflow/dags
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- ingestion-volume-tmp:/tmp
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```
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Once these changes are done, restart the container via:
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```commandline
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docker compose down && docker compose up -d
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```
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## Verify the Named Volumes
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Running `docker volume ls` will list all the volumes which are available on the host machine.
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The default path where volumes get created in Linux is as follows:
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```commandline
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/var/lib/docker/volumes/
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```
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