This shell script is for migrating(backup and restore) postgres data in kubernetes environment. 'tar' binary should be included in containers.

• Purpose : Set up backup.config for shell script
• Order :
  • Set up configuration for your environment
    • backup_file_directory
      • The path of backup file
      • Only write the path except file-name omitting the last '/' character
      • ex) /home/swlee/postgres-backup
    • origin_ns
      • Namespace of postgres to backup
      • ex) my-backup
    • origin_label
      • Label array of postgres to backup
      • ex) ("app=postgres", "cluster=cluster1")
    • restore_ns
      • Namespace of postgres to restore
      • ex) my-restore
    • restore_label
      • Label array of postgres to restore
      • ex) ("app=postgres", "cluster=cluster2")

• Purpose : Execute shell script
• Pre-work

   sudo chmod +x postgres-backup.sh

• Backup :

  ./postgres-backup.sh backup

• Restore :

  ./postgres-backup.sh restore