computer-playbook/roles/docker/README.md

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# role docker
## maintenance
### list unused volumes
```bash
docker volume ls -q -f "dangling=true"
```
### remove all unused volumes
```bash
docker volume rm $(docker volume ls -q -f "dangling=true")
```
## performance
- https://forums.docker.com/t/mysql-slow-performance-in-docker/37179/21
## see
- https://stackoverflow.com/questions/37599128/docker-how-do-you-disable-auto-restart-on-a-container