#!/usr/bin/env bash
# exit immediately when a command fails
set -e
# only exit with zero if all commands of the pipeline exit successfully
set -o pipefail
# error on unset variables
set -u
# print each command before executing it
set -x

manifest_prefix=${1-.}

kubectl create namespace monitoring

find ${manifest_prefix}/manifests/prometheus-operator/ -type f ! -name prometheus-operator-service-monitor.yaml -exec kubectl apply -f {} \;

# Wait for CRDs to be ready.
printf "Waiting for Operator to register custom resource definitions..."
until kubectl get customresourcedefinitions servicemonitors.monitoring.coreos.com > /dev/null 2>&1; do sleep 1; printf "."; done
until kubectl get customresourcedefinitions prometheuses.monitoring.coreos.com > /dev/null 2>&1; do sleep 1; printf "."; done
until kubectl get customresourcedefinitions alertmanagers.monitoring.coreos.com > /dev/null 2>&1; do sleep 1; printf "."; done
until kubectl get servicemonitors.monitoring.coreos.com > /dev/null 2>&1; do sleep 1; printf "."; done
until kubectl get prometheuses.monitoring.coreos.com > /dev/null 2>&1; do sleep 1; printf "."; done
until kubectl get alertmanagers.monitoring.coreos.com > /dev/null 2>&1; do sleep 1; printf "."; done
echo "done!"

# need to ensure that ServiceMonitors are registered before we can create the prometheus-operator ServiceMonitor
kubectl apply -f ${manifest_prefix}/manifests/prometheus-operator/prometheus-operator-service-monitor.yaml

kubectl apply -f ${manifest_prefix}/manifests/node-exporter/
kubectl apply -f ${manifest_prefix}/manifests/kube-state-metrics/
find ${manifest_prefix}/manifests/grafana/ -type f ! -name grafana-dashboard-definitions.yaml -exec kubectl apply -f {} \;

# kubectl apply wants to put the previous version in an annotation, which is too large, therefore create instead of apply
kubectl create -f ${manifest_prefix}/manifests/grafana/grafana-dashboard-definitions.yaml
kubectl apply -f ${manifest_prefix}/manifests/prometheus-k8s/
kubectl apply -f ${manifest_prefix}/manifests/alertmanager-main/