mirror of
https://github.com/frappe/frappe_docker.git
synced 2024-12-25 11:20:02 +00:00
295 lines
10 KiB
Python
295 lines
10 KiB
Python
import os
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import datetime
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import tarfile
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import hashlib
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import frappe
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import boto3
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from frappe.utils import get_sites, random_string
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from frappe.installer import (
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make_conf,
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get_conf_params,
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make_site_dirs,
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update_site_config
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)
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from constants import COMMON_SITE_CONFIG_FILE, DATE_FORMAT, RDS_DB, RDS_PRIVILEGES
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from utils import (
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run_command,
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list_directories,
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set_key_in_site_config,
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get_site_config,
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get_config,
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get_password,
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check_s3_environment_variables,
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)
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def get_backup_dir():
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return os.path.join(
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os.path.expanduser('~'),
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'backups'
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)
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def decompress_db(database_file, site):
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command = ["gunzip", "-c", database_file]
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with open(database_file.replace(".gz", ""), "w") as db_file:
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print('Extract Database GZip for site {}'.format(site))
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run_command(command, stdout=db_file)
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def restore_database(files_base, site_config_path, site):
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# restore database
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database_file = files_base + '-database.sql.gz'
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decompress_db(database_file, site)
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config = get_config()
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# Set db_type if it exists in backup site_config.json
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set_key_in_site_config('db_type', site, site_config_path)
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# Set db_host if it exists in backup site_config.json
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set_key_in_site_config('db_host', site, site_config_path)
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# Set db_port if it exists in backup site_config.json
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set_key_in_site_config('db_port', site, site_config_path)
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# get updated site_config
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site_config = get_site_config(site)
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# if no db_type exists, default to mariadb
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db_type = site_config.get('db_type', 'mariadb')
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is_database_restored = False
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if db_type == 'mariadb':
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restore_mariadb(
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config=config,
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site_config=site_config,
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database_file=database_file)
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is_database_restored = True
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elif db_type == 'postgres':
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restore_postgres(
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config=config,
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site_config=site_config,
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database_file=database_file)
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is_database_restored = True
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if is_database_restored:
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# Set encryption_key if it exists in backup site_config.json
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set_key_in_site_config('encryption_key', site, site_config_path)
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def restore_files(files_base):
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public_files = files_base + '-files.tar'
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# extract tar
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public_tar = tarfile.open(public_files)
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print('Extracting {}'.format(public_files))
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public_tar.extractall()
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def restore_private_files(files_base):
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private_files = files_base + '-private-files.tar'
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private_tar = tarfile.open(private_files)
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print('Extracting {}'.format(private_files))
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private_tar.extractall()
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def pull_backup_from_s3():
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check_s3_environment_variables()
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# https://stackoverflow.com/a/54672690
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s3 = boto3.resource(
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's3',
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region_name=os.environ.get('REGION'),
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aws_access_key_id=os.environ.get('ACCESS_KEY_ID'),
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aws_secret_access_key=os.environ.get('SECRET_ACCESS_KEY'),
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endpoint_url=os.environ.get('ENDPOINT_URL')
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)
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bucket_dir = os.environ.get('BUCKET_DIR')
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bucket_name = os.environ.get('BUCKET_NAME')
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bucket = s3.Bucket(bucket_name)
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# Change directory to /home/frappe/backups
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os.chdir(get_backup_dir())
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backup_files = []
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sites = set()
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site_timestamps = set()
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download_backups = []
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for obj in bucket.objects.filter(Prefix=bucket_dir):
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if obj.get()["ContentType"] == "application/x-directory":
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continue
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backup_file = obj.key.replace(os.path.join(bucket_dir, ''), '')
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backup_files.append(backup_file)
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site_name, timestamp, backup_type = backup_file.split('/')
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site_timestamp = site_name + '/' + timestamp
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sites.add(site_name)
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site_timestamps.add(site_timestamp)
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# sort sites for latest backups
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for site in sites:
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backup_timestamps = []
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for site_timestamp in site_timestamps:
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site_name, timestamp = site_timestamp.split('/')
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if site == site_name:
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timestamp_datetime = datetime.datetime.strptime(
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timestamp, DATE_FORMAT
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)
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backup_timestamps.append(timestamp)
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download_backups.append(site + '/' + max(backup_timestamps))
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# Only download latest backups
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for backup_file in backup_files:
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for backup in download_backups:
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if backup in backup_file:
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if not os.path.exists(os.path.dirname(backup_file)):
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os.makedirs(os.path.dirname(backup_file))
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print('Downloading {}'.format(backup_file))
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bucket.download_file(bucket_dir + '/' + backup_file, backup_file)
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os.chdir(os.path.join(os.path.expanduser('~'), 'frappe-bench', 'sites'))
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def restore_postgres(config, site_config, database_file):
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# common config
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common_site_config_path = os.path.join(os.getcwd(), COMMON_SITE_CONFIG_FILE)
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db_root_user = config.get('root_login')
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if not db_root_user:
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postgres_user = os.environ.get('DB_ROOT_USER')
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if not postgres_user:
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print('Variable DB_ROOT_USER not set')
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exit(1)
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db_root_user = postgres_user
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update_site_config(
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"root_login",
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db_root_user,
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validate=False,
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site_config_path=common_site_config_path)
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db_root_password = config.get('root_password')
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if not db_root_password:
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root_password = get_password('POSTGRES_PASSWORD')
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if not root_password:
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print('Variable POSTGRES_PASSWORD not set')
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exit(1)
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db_root_password = root_password
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update_site_config(
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"root_password",
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db_root_password,
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validate=False,
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site_config_path=common_site_config_path)
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# site config
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db_host = site_config.get('db_host')
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db_port = site_config.get('db_port', 5432)
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db_name = site_config.get('db_name')
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db_password = site_config.get('db_password')
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psql_command = ["psql"]
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psql_uri = f"postgres://{db_root_user}:{db_root_password}@{db_host}:{db_port}"
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print('Restoring PostgreSQL')
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run_command(psql_command + [psql_uri, "-c", f"DROP DATABASE IF EXISTS \"{db_name}\""])
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run_command(psql_command + [psql_uri, "-c", f"DROP USER IF EXISTS {db_name}"])
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run_command(psql_command + [psql_uri, "-c", f"CREATE DATABASE \"{db_name}\""])
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run_command(psql_command + [psql_uri, "-c", f"CREATE user {db_name} password '{db_password}'"])
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run_command(psql_command + [psql_uri, "-c", f"GRANT ALL PRIVILEGES ON DATABASE \"{db_name}\" TO {db_name}"])
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with open(database_file.replace('.gz', ''), 'r') as db_file:
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run_command(psql_command + [f"{psql_uri}/{db_name}", "<"], stdin=db_file)
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def restore_mariadb(config, site_config, database_file):
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db_root_password = get_password('MYSQL_ROOT_PASSWORD')
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if not db_root_password:
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print('Variable MYSQL_ROOT_PASSWORD not set')
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exit(1)
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db_root_user = os.environ.get("DB_ROOT_USER", 'root')
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db_host = site_config.get('db_host', config.get('db_host'))
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db_port = site_config.get('db_port', config.get('db_port', 3306))
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db_name = site_config.get('db_name')
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db_password = site_config.get('db_password')
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# mysql command prefix
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mysql_command = ["mysql", f"-u{db_root_user}", f"-h{db_host}", f"-p{db_root_password}", f"-P{db_port}"]
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# drop db if exists for clean restore
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drop_database = mysql_command + ["-e", f"DROP DATABASE IF EXISTS `{db_name}`;"]
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run_command(drop_database)
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# create db
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create_database = mysql_command + ["-e", f"CREATE DATABASE IF NOT EXISTS `{db_name}`;"]
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run_command(create_database)
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# create user
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create_user = mysql_command + ["-e", f"CREATE USER IF NOT EXISTS '{db_name}'@'%' IDENTIFIED BY '{db_password}'; FLUSH PRIVILEGES;"]
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run_command(create_user)
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# grant db privileges to user
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grant_privileges = "ALL PRIVILEGES"
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# for Amazon RDS
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if config.get(RDS_DB) or site_config.get(RDS_DB):
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grant_privileges = RDS_PRIVILEGES
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grant_privileges_command = mysql_command + ["-e", f"GRANT {grant_privileges} ON `{db_name}`.* TO '{db_name}'@'%' IDENTIFIED BY '{db_password}'; FLUSH PRIVILEGES;"]
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run_command(grant_privileges_command)
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print('Restoring MariaDB')
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with open(database_file.replace('.gz', ''), 'r') as db_file:
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run_command(mysql_command + [f"{db_name}"], stdin=db_file)
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def main():
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backup_dir = get_backup_dir()
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if len(list_directories(backup_dir)) == 0:
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pull_backup_from_s3()
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for site in list_directories(backup_dir):
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site_slug = site.replace('.', '_')
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backups = [datetime.datetime.strptime(backup, DATE_FORMAT) for backup in list_directories(os.path.join(backup_dir, site))]
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latest_backup = max(backups).strftime(DATE_FORMAT)
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files_base = os.path.join(backup_dir, site, latest_backup, '')
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files_base += latest_backup + '-' + site_slug
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site_config_path = files_base + '-site_config_backup.json'
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if not os.path.exists(site_config_path):
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site_config_path = os.path.join(backup_dir, site, 'site_config.json')
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if site in get_sites():
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print('Overwrite site {}'.format(site))
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restore_database(files_base, site_config_path, site)
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restore_private_files(files_base)
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restore_files(files_base)
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else:
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site_config = get_conf_params(
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db_name='_' + hashlib.sha1(site.encode()).hexdigest()[:16],
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db_password=random_string(16)
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)
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frappe.local.site = site
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frappe.local.sites_path = os.getcwd()
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frappe.local.site_path = os.getcwd() + '/' + site
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make_conf(
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db_name=site_config.get('db_name'),
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db_password=site_config.get('db_password'),
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)
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make_site_dirs()
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print('Create site {}'.format(site))
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restore_database(files_base, site_config_path, site)
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restore_private_files(files_base)
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restore_files(files_base)
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if frappe.redis_server:
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frappe.redis_server.connection_pool.disconnect()
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exit(0)
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if __name__ == "__main__":
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main()
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