Initial commit, first working program.

.gitignore

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+# IDEA
+*.iml
+.idea/

README.md

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+# Backscripts
+
+Scripts to manage backups.
+
+```shell
+ksrackup {backup_name} init :: Initialize backup repository.
+ksrackup {backup_name} backup :: Perform a new backup.
+ksrackup {backup_name} prune :: Prune outdated backups.
+ksrackup {backup_name} restic :: Execute an arbitrary restic command.
+```

ksrackup

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+#!/bin/python3
+
+import json
+import subprocess
+import sys
+import os
+
+if len(sys.argv) < 3:
+	# Check commands arguments.
+	print("Usage: ")
+	print("ksrackup {backup_name} init :: Initialize backup repository.")
+	print("ksrackup {backup_name} backup :: Perform a new backup.")
+	print("ksrackup {backup_name} prune :: Prune outdated backups.")
+	print("ksrackup {backup_name} restic :: Execute an arbitrary restic command.")
+	exit(1)
+
+# Get command parameters.
+backup_name = sys.argv[1]
+command = sys.argv[2]  # The executed command.
+
+# Open and read a backup configuration file.
+backup_file = open(backup_name + ".json")
+backup_data = json.load(backup_file)
+
+# Setup the restic environment from backup configuration.
+restic_environment = {
+	"RESTIC_REPOSITORY": backup_data["restic"]["repository"],
+	"RESTIC_PASSWORD": backup_data["restic"]["password"],
+	"AWS_ACCESS_KEY_ID": backup_data["restic"]["access_key_id"],
+	"AWS_SECRET_ACCESS_KEY": backup_data["restic"]["secret_access_key"],
+}
+
+# Create the backup directory.
+os.makedirs(backup_name, exist_ok=True)
+# Move to the backup directory.
+os.chdir(backup_name)
+
+# Open error log file.
+error_log = open("error.log", "a")
+
+# Execute the command.
+if command == "init":
+	# Initialize a backup repository.
+	subprocess.run(["restic", "init"], env=restic_environment)
+elif command == "backup":
+
+	# Perform the right backup operations depending on its type.
+	if backup_data["type"] == "postgresql":
+		with open("database.sql", "w") as database_sql:
+			# Dump of the PostgreSQL database.
+			subprocess.run([
+				"docker", "exec", backup_data["postgresql"]["container_name"],
+				"pg_dump", "-U", backup_data["postgresql"]["username"], backup_data["postgresql"]["database"],
+			], stdout=database_sql, stderr=error_log)
+		# Save the dump in the restic repository.
+		subprocess.run(["restic", "backup", "database.sql"], env=restic_environment, stderr=error_log)
+	elif backup_data["type"] == "mysql":
+		with open("database.sql", "w") as database_sql:
+			# Dump of the MySQL database.
+			subprocess.run([
+				"docker", "exec", backup_data["mysql"]["container_name"],
+				"mysqldump", "-u", backup_data["mysql"]["username"], "-p" + backup_data["mysql"]["password"], backup_data["mysql"]["database"],
+			], stdout=database_sql, stderr=error_log)
+		# Save the dump in the restic repository.
+		subprocess.run(["restic", "backup", "database.sql"], env=restic_environment, stderr=error_log)
+	elif backup_data["type"] == "files":
+		# Save the files in the restic repository.
+		subprocess.run(["restic", "backup", backup_data["files"]["path"]], env=restic_environment, stderr=error_log)
+
+elif command == "prune":
+	# Define backups conservation policy.
+	prune_params = [
+		"--keep-within", "28d",
+		"--keep-within-daily", "4m",
+		"--keep-within-weekly", "2y",
+		"--keep-monthly", "100",
+	]
+	# Remove outdated backups.
+	subprocess.run(["restic", "forget", "--prune"] + prune_params, env=restic_environment, stderr=error_log)
+elif command == "restic":
+	# Execute the arbitrary restic command.
+	subprocess.run(["restic"] + sys.argv[3:], env=restic_environment)