Merge branch 'prefix' into 'main'

Added prefix for backup filename

See merge request technocloud/docker-postgres-backup!3

README.md

@@ -22,6 +22,7 @@ You can set some envs vars:
 - DB_NAME - database to back up, default is postgres
 - TIME_ZONE - timezone for datetime using in filenames, default is Europe/Tallinn
 - COMPRESSION_LEVEL - level of LZMA compression, default is 7
+- PREFIX - prefix for backup filename, default is empty
 
 Also, please define settings for S3 storage:
 - AWS_S3_REGION_NAME - default nl-ams

start.py

@@ -14,6 +14,7 @@ You can set some envs vars:
 - DB_NAME - database to back up, default is postgres
 - TIME_ZONE - timezone for datetime using in filenames, default is Europe/Tallinn
 - COMPRESSION_LEVEL - level of LZMA compression, default is 7
+- PREFIX - prefix for backup filename, default is empty
 
 Settings for S3 storage:
 - AWS_S3_REGION_NAME - default nl-ams
@@ -43,6 +44,7 @@ DB_HOST = os.getenv("DB_HOST", "localhost")
 DB_PORT = os.getenv("DB_PORT", "5432")
 DB_NAME = os.getenv("DB_NAME", "postgres")
 TIME_ZONE = pytz.timezone(os.getenv("TIME_ZONE", "Europe/Tallinn"))
+PREFIX = os.getenv("PREFIX", "")
 AWS_S3_REGION_NAME = os.getenv("AWS_S3_REGION_NAME", "nl-ams")
 AWS_S3_ENDPOINT_URL = os.getenv("AWS_S3_ENDPOINT_URL", "https://s3.nl-ams.scw.cloud")
 AWS_ACCESS_KEY_ID = os.getenv("AWS_ACCESS_KEY_ID")
@@ -126,7 +128,10 @@ def run_backup_database() -> None:
     """
     scheduled_time = datetime.now(tz=TIME_ZONE).strftime("%y%m%d-%H%M")
     filename = f"{DB_NAME}-{scheduled_time}.sql"
+    if PREFIX:
+        filename = f"{PREFIX}-{filename}"
     sql_file_path = f"/tmp/{filename}"
+
     backup_success = backup_db_from_postgres(file_path=sql_file_path)
     if not backup_success:
         print("Backup failed")