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2021-09-17 00:17:23 +00:00
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# Docker
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## Manage containers
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* Start a container from a compose file: `docker-compose up -d`
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* Access a container: `docker exec -it CONTAINER bash`
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* Remove a volume not associated with any container: `docker volume prune`
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## List containers
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* Show running containers: `docker ps`
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* Show all existing containers: `docker ps -a`
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## Database
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* Backup a database from a container
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`docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql`
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* Restore a database to a container
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`cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE`
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## Specifics use
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### Nextcloud
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* Manage a Nextcloud Docker instance
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`docker exec -u www-data -it nextcloud-web php occ maintenance:mode --off`
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