#!/bin/sh

os="$(cat "${__global:?}/explorer/os")"
case "$os" in
	alpine|debian|ubuntu)
		__package prometheus
		;;
	*)
		echo "This type does not support $os. Exiting." >&2
		exit 1
		;;
esac

export GLOBAL_SCRAPE_INTERVAL=60s
export GLOBAL_EVALUATION_INTERVAL=60s

export EXTERNAL_LABELS=

if [ -f "${__object:?}/parameter/alertmanager-addr" ]; then
	ALERTMANAGER_ADDR=$(cat "${__object:?}/parameter/alertmanager-addr")
fi
export ALERTMANAGER_ADDR

if [ -f "${__object:?}/parameter/rule-files" ]; then
	RULE_FILES=$(cat "${__object:?}/parameter/rule-files")
fi
export RULE_FILES

SCRAPE_JOB_CONFIGS=$(cat "${__object:?}/parameter/scrape-job-config")
export SCRAPE_JOB_CONFIGS

# Generate and deploy configuration
mkdir -p "${__object:?}/files"
"${__type:?}/files/prometheus.yml.sh" > "${__object:?}/files/prometheus.yml"

require="__package/prometheus" __file /etc/prometheus/prometheus.yml \
	--source "${__object:?}/files/prometheus.yml" \
	--mode 0644 \
	--onchange "service prometheus restart"

require="__package/prometheus" __start_on_boot prometheus
require="__package/prometheus" __service prometheus --action start