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+# Backup scripts
+
+These are my personal scripts for auto-backing up various files to a server over SFTP using [restic](https://restic.net/) with alerting through [Healthchecks.io](https://healthchecks.io).
+
+## Setup
+
+First install restic and create a repo [following the docs](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html). Make sure to auto-generate a strong password for the repo and store it in a file: e.g. at `~/.restic-<repo-name>-password`. **Save the password in a password manager too!**
+
+**Make sure you use the latest version of restic so that the repo is created with version 2 format which includes automatic compression**. The latest Ubuntu versions do not self-update, so it's better to just install the binary [directly from github](https://github.com/restic/restic/releases), and remember to periodically run `restic self-update`.
+
+Then create a [Healthchecks.io](https://healthchecks.io) project and two checks: one for the backup itself and another for the restic integrity check. Don't forget to setup an email integration so you are actually alerted. Also, I like to go to settings and generate a "Ping key" so that I can use the [slug URLs](https://healthchecks.io/docs/slug_urls/) instead of the default UUID URLs.
+
+## Running the scripts
+
+Run the first backup manually in the shell, e.g.:
+
+```
+./backup.sh --password-file /home/user/.restic-repo-password --log-file /home/user/logs/repo-backup.log --healthcheck https://hc-ping.com/slug/repo-backup /home/user/folder sftp:storage-server:/backups/repo --verbose
+```
+
+**NOTE: unfortunately there's something wrong with the script and it does not output anything to the log unless the `--verbose` flag is passed so I just always pass the flag.**
+
+For the integrity check (note it may take a long time to run for large repos), e.g.:
+
+```
+./restic-integrity-check.sh --password-file /home/user/.restic-repo-password --log-file /home/user/logs/repo-integrity-check.log --healthcheck https://hc-ping.com/slug/restic-integrity-check sftp:storage-server:/backups/repo --verbose
+```
+
+It's best to set up a cronjobs for the backup and integrity check:
+
+```
+crontab -e
+# enter same command above but with absolute paths and prefixed with a cron schedule expression (see https://crontab.guru/)
+```
+
+## Monitor
+
+You should automatically get emails when a backup fails or fails to run at all. Check the logs to see what went wrong.
+
+## Stats
+
+To see how much space a repo is taking up in the remote, run:
+
+```
+restic -r sftp:storage-server:/backup/repo --password-file /home/user/.restic-repo-password stats
+```
+
+## Test Restoring
+
+Backups are only good if you know you can restore them...
+
+```
+restic -r sftp:storage-server:/backups/repo --password-file /home/user/.restic-repo-password restore latest --target /tmp/repo
+ls -lath /tmp/repo
+```