feat: add initial setup for pearl server

roles/any.tools.restic/templates/backup-all.sh.j2

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+# This script sequentially executes all shell scripts matching
+# /etc/backups/*.backup.sh, with environment variables configured to publish
+# backups to the local Restic REST server.
+
+# Get passed along to subcalls to bash
+export RESTIC_REPOSITORY='rest:http://{{ groups['nas'][0] }}:8000/backups'
+export RESTIC_PASSWORD_FILE='/etc/backups/restic_backups_passwd'
+
+log_file='/tmp/backup-all.sh.log'
+
+rm -f "$log_file"
+
+for script in $(find /etc/backups -name '*.backup.sh'); do
+    T="$(date +%s)"
+
+    /usr/bin/bash "$script"
+
+    res="$?"
+    T="$(($(date +%s)-T))"
+
+    if [[ $res == 0 ]]; then
+        header='OK'
+    else
+        header="FAIL ($res)"
+    fi
+
+    printf \
+        "%s: %s in %02dh%02dm%02ds\n" \
+        "$(basename "$script")" "$header" \
+        "$((T/3600%24))" "$((T/60%60))" "$((T%60))" \
+        >> "$log_file"
+done
+
+# Prune older backups
+/usr/local/bin/restic forget --keep-last 7 && \
+    /usr/local/bin/restic prune
+
+# Send status notification
+ntfy publish \
+    --title "Backups ($(hostname))" \
+    homelab "$(cat "$log_file")"