#!/usr/bin/env bash

if [ -z "${KUBECONFIG}" ]; then
    export KUBECONFIG=~/.kube/config
fi

# CAUTION - setting NAMESPACE will deploy most components to the given namespace
# however some are hardcoded to 'monitoring'. Only use if you have reviewed all manifests.

if [ -z "${NAMESPACE}" ]; then
    NAMESPACE=monitoring
fi

kubectl create namespace "$NAMESPACE"

kctl() {
    kubectl --namespace "$NAMESPACE" "$@"
}

kubectl apply -f manifests/k8s

kctl apply -f manifests/prometheus-operator

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

kctl apply -f manifests/node-exporter
kctl apply -f manifests/kube-state-metrics
kctl apply -f manifests/grafana/grafana-credentials.yaml
kctl apply -f manifests/grafana
find manifests/prometheus -type f ! -name prometheus-k8s-roles.yaml ! -name prometheus-k8s-role-bindings.yaml -exec kubectl --namespace "$NAMESPACE" apply -f {} \;
kubectl apply -f manifests/prometheus/prometheus-k8s-roles.yaml
kubectl apply -f manifests/prometheus/prometheus-k8s-role-bindings.yaml
kctl apply -f manifests/alertmanager/
kctl apply -f manifests/smtp-server/smtp.yaml