backup static files to garage

newinfra/nix/modules/backup/backup.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+time="$(date --iso-8601=s --utc)"
+echo "Starting backup procedure with time=$time"
+
+dir=$(mktemp -d)
+echo "Setting workdir to $dir"
+cd "$dir"
+# Delete the temporary directory afterwards.
+# Yes, this variable should expand now.
+# shellcheck disable=SC2064
+trap "rm -rf $dir" EXIT
+
+echo "Logging into garage"
+export MC_CONFIG_DIR="$dir"
+mc alias set garage "$S3_ENDPOINT" "$S3_ACCESS_KEY" "$S3_SECRET_KEY" --api S3v4
+
+mc ls garage/backups
+
+files=$(jq -c '.files[]' "$CONFIG_FILE") 
+
+IFS=$'\n'
+for file_config in $files; do
+    filepath=$(echo "$file_config" | jq -r ".file")
+    app=$(echo "$file_config" | jq -r ".app")
+
+    echo "Backing up app $app FILE $filepath..."
+    tmppath="$dir/file"
+    xz < "$filepath" > "$tmppath"
+
+    echo "Uplading file"
+    mc put "$tmppath" "garage/$S3_BUCKET/$app/$time/$(basename "$filepath").xz"
+    echo "Uploaded file"
+done