What exactly happen when BACKUP_FROM_SNAPSHOT=true? #49
Description
Hello!
Can anyone explaine what exactly happens when i use variable BACKUP_FROM_SNAPSHOT=true?
I test backup prometheus DB without stop, but with BACKUP_FROM_SNAPSHOT and i receive an error
Failure running docker-volume-backup at 2022-01-18T00:00:00+03:00
Running docker-volume-backup failed with error: takeBackup: error creating snapshot: open /backup/prometheus_data/01FSM8TPFEXQ0QC28H11PMQZ0R: no such file or directory
Log output of the failed run was:
time="2022-01-18T00:04:00+03:00" level=error msg="Fatal error running backup: takeBackup: error creating snapshot: open /backup/prometheus_data/01FSM8TPFEXQ0QC28H11PMQZ0R: no such file or directory"
time="2022-01-18T00:04:03+03:00" level=info msg="Removed snapshot /tmp/backup."
If i use label which is stops container before backup - all ok
Here part of compose file
backup:
container_name: prometheus_backup
image: offen/docker-volume-backup:v2.7.2
restart: always
environment:
BACKUP_FILENAME: backup-{{ prometheus_name }}-%Y-%m-%dT%H-%M-%S.tar.gz
BACKUP_FROM_SNAPSHOT: "true"
BACKUP_RETENTION_DAYS: "7"
NOTIFICATION_LEVEL: "info"
NOTIFICATION_URLS: "{{ slack_hook}}"
# BACKUP_STOP_CONTAINER_LABEL: {{ prometheus_name }}
volumes:
- "{{ prometheus_volume_config }}:/backup/{{ prometheus_volume_config }}:ro"
- "{{ prometheus_volume_data }}:/backup/{{ prometheus_volume_data }}:ro"
- /var/run/docker.sock:/var/run/docker.sock:ro
- "/hdd/backup/{{ prometheus_name }}:/archive"
- /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro
networks:
- docker_office
networks:
docker_office:
external: true
volumes:
{{ prometheus_volume_config }}:
external: true
{{ prometheus_volume_data }}:
external: true