This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.
Step 1 - Enable NBD on the Host
modprobe nbd max_part=8
docker logs nginx 2>&1 | grep "127." | |
# ref: http://stackoverflow.com/questions/34724980/finding-a-string-in-docker-logs-of-container |
version: '2.1' | |
services: | |
mysql: | |
container_name: mysql | |
image: mysql:5.7 | |
ports: | |
- "13306:3306" | |
environment: | |
- MYSQL_ROOT_PASSWORD=Welcome123 | |
healthcheck: |
#!/usr/bin/env bash | |
# | |
# This is sp, the command-line Spotify controller. It talks to a running | |
# instance of the Spotify Linux client over dbus, providing an interface not | |
# unlike mpc. | |
# | |
# Put differently, it allows you to control Spotify without leaving the comfort | |
# of your command line, and without a custom client or Premium subscription. | |
# |
# Backup | |
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql | |
# Restore | |
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE | |