swananddhawan / get_system_to_desired_state_scripts Goto Github PK

Scope: A half decent program to backup and restore a given system to desired state Restoration should be done without internet connection.

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Assumptions:

• System should have Debian 7 or equivalent distros of it.
• Config files should be parsable by Python's ConfigParser.
• Backup/restoration will be done to/from a device directly connected to the machine as a disk.
• Backup machine should be connected to the internet or appropriate repository.
• While backup is being done, the backup files will not get corrupted/deleted.

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Program's high level description:

0. Check whether it's 1st run or not.
1. Generate the initial queue of tasks (task_queue), if not done earlier.
2. Execute tasks from the task_queue and update the task_queue accordingly.
3. If finished, exit.

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Files created by script:

• task_queue
• queue_head
• get_backup_of_desired_state_machine.log.TIMESTAMP (log file)
• wget.log (if backup_globally_installed_packages = True) (log file)

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Tasks:

• get_dpkg_selections
• copy_tar_files
• generate_urls
• download_packages
• write_names_of_locally_installed_packages
• make_tar

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