Prometheus: [devenv] provision gdev-prometheus development environment with basic auth (#71153)

* provision gdev-prometheus development environment with basic auth

devenv/datasources.yaml

@@ -56,11 +56,15 @@ datasources:
     type: prometheus
     access: proxy
     url: http://localhost:9090
+    basicAuth: true #username: admin, password: admin
+    basicAuthUser: admin
     jsonData:
       manageAlerts: true
       alertmanagerUid: gdev-alertmanager
       prometheusType: Prometheus #Cortex | Mimir | Prometheus | Thanos
       prometheusVersion: 2.40.0
+    secureJsonData:
+      basicAuthPassword: admin #https://grafana.com/docs/grafana/latest/administration/provisioning/#using-environment-variables
 
   - name: gdev-slow-prometheus
     uid: gdev-slow-prometheus-uid

devenv/docker/blocks/prometheus/Dockerfile

@@ -2,3 +2,4 @@ FROM prom/prometheus:latest
 ADD prometheus.yml /etc/prometheus/
 ADD recording.yml /etc/prometheus/
 ADD alert.yml /etc/prometheus/
+ADD web.yml /etc/prometheus/

devenv/docker/blocks/prometheus/docker-compose.yaml

@@ -10,6 +10,7 @@
       --storage.tsdb.path=/prometheus
       --web.console.libraries=/usr/share/prometheus/console_libraries
       --web.console.templates=/usr/share/prometheus/consoles
+      --web.config.file=/etc/prometheus/web.yml
 
   node_exporter:
     image: prom/node-exporter

devenv/docker/blocks/prometheus/web.yml

@@ -0,0 +1,3 @@
+basic_auth_users:
+  # username: admin, password: admin
+  admin: $2a$12$HvzPxejEHakuEIjxQ8uQrOaZ57GmFznB6M/w.85MpdEtSFFOOyDgW