#!/bin/bash

set -eu

mkdir -p /app/data/runtime /app/data/config

if [[ ! -f /app/data/config/prometheus.yml ]]; then
    echo "=> Creating config file on first run"
    cp /app/code/prometheus.yml /app/data/config/prometheus.yml
fi

chown -R cloudron:cloudron /app/data

if [[ ! -f /app/data/prometheus_variables.sh ]]; then
    echo "=> Copy default prometheus variable file since it does not exist"
    cp /app/pkg/default_prometheus_variables.sh /app/data/prometheus_variables.sh
fi

echo "=> Source custom variables"
source /app/data/prometheus_variables.sh

echo "=> Starting Prometheus with retention time of $retention_time"
exec /usr/local/bin/gosu cloudron:cloudron /app/code/prometheus --config.file=/app/data/config/prometheus.yml --storage.tsdb.path=/app/data/runtime --storage.tsdb.retention.time="${retention_time:-15d}"