vps/newinfra/nix/modules/backup/backup.sh

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#!/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