#!/bin/bash

echo ""
echo "... ] DEPLOYING MONITORING [ ..."

HOME=$( cd "$(dirname "$0")" && pwd )
source $HOME/config

if [ -f $HOME/config-coreapps ]; then
    echo "config-coreapps file FOUND :)"
    source $HOME/config-coreapps
    export CEPH_MONITOR_1
    export CEPH_MONITOR_2
    export CEPH_MONITOR_3
else
    echo "config-coreapps file is missing."
    exit 1
fi

export KUBECONFIG=$ADMIN_KUBECONFIG
export HELM_CACHE_HOME=~/.cache/helm
export HELM_CONFIG_HOME=~/.config/helm
export HELM_DATA_HOME=~/.local/share/helm

kubectl create namespace monitoring

printf "\ndeploying zabbix-agent for host monitoring...\n"
kubectl -n monitoring create secret generic zabbix-psk-secret --from-literal=zabbix_agentd.psk=${ZABBIX_PSK}
kubectl -n monitoring create secret generic zabbix-psk-id-secret --from-literal=zabbix_psk_id=${ZABBIX_PSK_ID}
cat yaml/monitoring/zabbix-agent-daemonset.yaml | sed "s/k8x_zabbix_server/${ZABBIX_SERVER}/" | kubectl -n monitoring apply -f -

printf "\ndeploying prometheus for metrics aggregation...\n"
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update
cat yaml/monitoring/prometheus-volumes.yaml | envsubst | kubectl apply -f -
helm install \
  prometheus prometheus-community/prometheus \
  --namespace monitoring \
  -f yaml/monitoring/prometheus-values.yaml

printf "\ndeploying grafana for monitoring dashboard...\n"
helm repo add grafana https://grafana.github.io/helm-charts
helm repo update
cat yaml/monitoring/grafana-volumes.yaml | envsubst | kubectl apply -f -
helm install \
  grafana grafana/grafana \
  --namespace monitoring \
  -f yaml/monitoring/grafana-values.yaml \
  --set env.GF_SMTP_ENABLED=true,env.GF_SMTP_HOST=${GRAFANA_SMTP_HOST},env.GF_SMTP_FROM_ADDRESS=${GRAFANA_SMTP_FROM_ADDRESS},env.GF_SMTP_USER=${GRAFANA_SMTP_USER},env.GF_SMTP_PASSWORD=${GRAFANA_SMTP_PASSWORD},env.GF_SMTP_SKIP_VERIFY=true
printf '\ngrafana login:\nuser: admin \npass: ' ; kubectl get secret --namespace monitoring grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo
#kubectl -n monitoring create secret generic monitoring-http-secret --from-file=yaml/monitoring/auth
if $CERT_MODE; then
  cat yaml/monitoring/grafana-cert.yaml | sed "s/k8x_domain/${CLUSTER_NAME}.${CLUSTER_DOMAIN}/" | kubectl -n monitoring apply -f -
  cat yaml/monitoring/grafana-ingress-secure.yaml | sed "s/k8x_domain/${CLUSTER_NAME}.${CLUSTER_DOMAIN}/" | kubectl -n monitoring apply -f -
else
  cat yaml/monitoring/grafana-ingress.yaml | sed "s/k8x_domain/${CLUSTER_NAME}.${CLUSTER_DOMAIN}/" | kubectl -n monitoring apply -f -
fi

exit 0
###

printf "\ndeploying loki for logs aggregation..."
cat yaml/monitoring/loki-volumes.yaml | envsubst | kubectl apply -f -
helm repo add loki https://grafana.github.io/loki/charts
helm repo update
helm install \
  loki loki/loki \
  --namespace monitoring \
  -f yaml/monitoring/loki-values.yaml
helm install \
  promtail loki/promtail \
  --namespace monitoring \
  --set "loki.serviceName=loki"