feature/multi-cloud (#14)

Co-authored-by: Danijel Simeunovic <danijel.simeunovic@fortedigital.com>
Reviewed-on: #14

scripts/backup/aws-s3.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -euo pipefail
+# AWS S3 backup upload (native AWS CLI)
+# Uses: aws cli v2
+# Env: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_DEFAULT_REGION, S3_BUCKET
+
+BACKUP_FILE="${1:?Usage: $0 <backup-file>}"
+TIMESTAMP=$(date +%Y%m%d-%H%M%S)
+KEY="gitea-dump-${TIMESTAMP}.zip"
+
+echo "Uploading ${KEY}..."
+aws s3 cp "$BACKUP_FILE" "s3://${S3_BUCKET}/${KEY}"
+echo "Upload complete."
+
+# Prune backups older than 7 days
+echo "Pruning backups older than 7 days..."
+CUTOFF=$(date -d '7 days ago' +%Y-%m-%dT%H:%M:%S 2>/dev/null || date -v-7d +%Y-%m-%dT%H:%M:%S)
+aws s3api list-objects-v2 --bucket "${S3_BUCKET}" --query "Contents[?LastModified<'${CUTOFF}'].Key" --output text \
+  | tr '\t' '\n' \
+  | while read -r key; do
+      [ -n "$key" ] && aws s3 rm "s3://${S3_BUCKET}/${key}" && echo "Deleted: ${key}"
+    done
+echo "Pruning complete."