export_secret() {
    local name="$1"
    local file="/run/secrets/${name}"

    if [[ ! -f "$file" ]]; then
        printf "secret file not found: %s\n" $file >&2
        return 1
    fi

    # Read first line, remove trailing spaces/tabs, convert nulls to newlines
    local value
    value=$(head -n1 "$file" | sed 's/[ \t]*$//' | tr '\0' '\n')

    export "${name}=${value}"
}