From 85d5e68b4afcc3d804eb798fcda97f337ca081be Mon Sep 17 00:00:00 2001
From: Patrick Spek <p.spek@tyil.nl>
Date: Mon, 23 May 2022 13:12:20 +0200
Subject: Add playbook for borg

---
 playbooks.d/backup-borg/playbook.bash | 63 +++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 playbooks.d/backup-borg/playbook.bash

(limited to 'playbooks.d/backup-borg/playbook.bash')

diff --git a/playbooks.d/backup-borg/playbook.bash b/playbooks.d/backup-borg/playbook.bash
new file mode 100644
index 0000000..8f91f8a
--- /dev/null
+++ b/playbooks.d/backup-borg/playbook.bash
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+
+playbook_add() {
+	# TODO: Abort if backup.key is not set yet
+
+	pkg install borg
+	pkg install borgmatic
+
+	# Create a `borg1` for compatability with rsync.net
+	ln -s /usr/bin/borg /usr/local/bin/borg1
+
+	playbook_sync
+
+	info "$BASHTARD_PLAYBOOK" "Don't forget to add \`sysbackup\` to your crontab!"
+}
+
+playbook_sync() {
+	local config
+
+	config="$(getent passwd "$(config "backup.user")" | awk -F: '{ print $6 }')/.config/borgmatic/config.yaml"
+
+	mkdir -pv -- "$(dirname "$config")"
+
+	notice "$BASHTARD_PLAYBOOK" "Installing backup script"
+	file_template "backup.bash" \
+		> /usr/local/bin/sysbackup
+	chmod +x -- /usr/local/bin/sysbackup
+
+	# This is not going to be pretty, generating a YAML document from
+	# straight Bash, but the simple sed-based templating in Bashtard
+	# doesn't do loops, so this is the best I can do here.
+	notice "$BASHTARD_PLAYBOOK" "Generating borgmatic configuration"
+	printf "location:\n" > "$config"
+	printf "  source_directories:\n" >> "$config"
+
+	while read -r cpath
+	do
+		printf '  - "%s"\n' "$(config "$cpath")" >> "$config"
+	done < <(config_subkeys "backup.fs.paths")
+
+	printf "  repositories:\n" >> "$config"
+
+	while read -r cremote
+	do
+		printf '  - "%s"\n' "$(config "$cremote")" >> "$config"
+	done < <(config_subkeys "backup.fs.remotes")
+
+	printf "  one_file_system: true\n" >> "$config"
+	printf "  remote_path: borg1\n" >> "$config" # rsync.net wont work without this
+	printf "storage:\n" >> "$config"
+	printf "  encryption_passphrase: \"%s\"\n" "$(config "backup.key")" >> "$config"
+	printf "retention:\n" >> "$config"
+	printf "  keep_daily: 7\n" >> "$config"
+	printf "  keep_weekly: 4\n" >> "$config"
+	printf "  keep_monthly: 6\n" >> "$config"
+	printf "  keep_yearly: 1\n" >> "$config"
+}
+
+playbook_del() {
+	pkg uninstall borgmatic
+	pkg uninstall borg
+	rm -f -- /usr/local/bin/sysbackup
+}
-- 
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