kevinveenbirkenbach/docker-volume-backup
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Implemented database backup with mysqldump

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Kevin Veen-Birkenbach 2022-01-23 17:20:42 +01:00
parent 8ac9512163
commit 75c171ce09
2 changed files with 27 additions and 14 deletions
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3
README.md
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@ -32,6 +32,9 @@ To checkout what's going on in the mount container type in the following command
docker run -it --entrypoint /bin/sh --rm --volumes-from {{container_name}} -v /Backups/:/Backups/ kevinveenbirkenbach/alpine-rsync
```
## Setup
Install pandas
## Optimation
This setup script is not optimized yet for performance. Please optimized this script for performance if you want to use it in a professional environment.

38
docker-volume-backup.py
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@ -1,11 +1,12 @@
#!/bin/python
# Backups volumes of running containers
#
import subprocess, os, sys, pathlib
import subprocess, os, sys, pathlib, csv, pandas
from datetime import datetime
from pprint import pprint
def bash(command):
print(command);
process=subprocess.Popen([command],stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
out, err=process.communicate()
stdout=out.splitlines()
@ -26,6 +27,8 @@ def list_to_string(list):
return str(' '.join(list));
print('start backup routine...')
print('load connection data...');
databases=pandas.read_csv("databases.csv",sep=";");
print('start volume backups...')
backup_time=datetime.now().strftime("%Y%m%d%H%M%S")
backups_folder='/Backups/'
@ -40,29 +43,36 @@ for volume_name in volume_names:
print('skipped due to no running containers using this volume.');
else:
container=containers[0]
print("stop containers:");
print_bash("docker stop " + list_to_string(containers))
source_path_command="docker inspect --format \"{{ range .Mounts }}{{ if eq .Type \\\"volume\\\"}}{{ if eq .Name \\\"" + volume_name +"\\\"}}{{ println .Destination }}{{ end }}{{ end }}{{ end }}\" \""+ container +"\""
source_path_command_result_filtered=list(filter(None, bash(source_path_command)))
for source_path in source_path_command_result_filtered:
destination_path=backup_repository_folder+"latest/"+ volume_name
sql_destination_path=destination_path + "/files"
files_destination_path=destination_path + "/files"
sql_destination_path=destination_path + "/sql"
log_path=backup_repository_folder + "log.txt"
backup_dir_path=backup_repository_folder + "diffs/"+ backup_time + "/" + volume_name
files_backup_dir_path=backup_dir_path + "/files"
sql_backup_dir_path=backup_dir_path + "/sql"
if os.path.exists(destination_path):
print("backup volume: " + volume_name);
print("Create backup folder structure for " + volume_name);
pathlib.Path(sql_destination_path).mkdir(parents=True, exist_ok=True)
pathlib.Path(files_backup_dir_path).mkdir(parents=True, exist_ok=True)
pathlib.Path(files_destination_path).mkdir(parents=True, exist_ok=True)
pathlib.Path(sql_backup_dir_path).mkdir(parents=True, exist_ok=True)
databases_entries=databases.loc[databases['container'] == container];
if len(databases_entries) == 1:
database_entry=databases_entries.iloc[0];
sql_destination_dir_file_path=sql_destination_path+"/backup.sql"
database_backup_command="docker exec "+ database_entry["container"] + " /usr/bin/mysqldump -u "+ database_entry["username"] + " -p"+ database_entry["password"] + " "+ database_entry["database"] + " > " + sql_destination_dir_file_path
print_bash(database_backup_command)
print_bash("cp -v " + sql_destination_dir_file_path + " " + sql_backup_dir_path)
else:
print("first backup volume: " + volume_name);
pathlib.Path(sql_destination_path).mkdir(parents=True, exist_ok=True)
pathlib.Path(files_backup_dir_path).mkdir(parents=True, exist_ok=True)
pathlib.Path(sql_destination_path).mkdir(parents=True, exist_ok=True)
pathlib.Path(sql_backup_dir_path).mkdir(parents=True, exist_ok=True)
print_bash("docker run --rm --volumes-from " + container + " -v "+backups_folder+":"+ backups_folder +" \"kevinveenbirkenbach/alpine-rsync\" sh -c \"rsync -abP --delete --delete-excluded --log-file=" + log_path +" --backup-dir=" + files_backup_dir_path +" '"+ source_path +"/' " + sql_destination_path +"\"")
print("start containers:")
print_bash("docker start " + list_to_string(containers))
print("stop containers:");
print_bash("docker stop " + list_to_string(containers))
print_bash("docker run --rm --volumes-from " + container + " -v "+backups_folder+":"+ backups_folder +" \"kevinveenbirkenbach/alpine-rsync\" sh -c \"rsync -abP --delete --delete-excluded --log-file=" + log_path +" --backup-dir=" + files_backup_dir_path +" '"+ source_path +"/' " + files_destination_path +"\"")
print("start containers:")
print_bash("docker start " + list_to_string(containers))
print("end backup routine for volume:" + volume_name)
print('finished volume backups.')
print('restart docker service...')