Adding missing NP for prom scraping istio-proxy metrics

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.10.1-bb.1]
+### Added
+- allow-sidecar-scraping networkpolicy template to allow prometheus to scrape istio-proxy sidecar metrics
+
 ## [2.10.1-bb.0]
 ### Changed
 - Updated `chart/` base to upstream chart version `loki-2.10.1`

README.md

 # loki
 
-![Version: 2.10.1-bb.0](https://img.shields.io/badge/Version-2.10.1--bb.0-informational?style=flat-square) ![AppVersion: v2.4.2](https://img.shields.io/badge/AppVersion-v2.4.2-informational?style=flat-square)
+![Version: 2.10.1-bb.1](https://img.shields.io/badge/Version-2.10.1--bb.1-informational?style=flat-square) ![AppVersion: v2.4.2](https://img.shields.io/badge/AppVersion-v2.4.2-informational?style=flat-square)
 
 Loki: like Prometheus, but for logs.
 

chart/Chart.yaml

 apiVersion: "v1"
 name: loki
-version: 2.10.1-bb.0
+version: 2.10.1-bb.1
 appVersion: v2.4.2
 kubeVersion: "^1.10.0-0"
 description: "Loki: like Prometheus, but for logs."

chart/templates/bigbang/networkpolicies/allow-sidecar-scraping.yaml

+{{- if and .Values.networkPolicies.enabled .Values.istio.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: allow-loki-sidecar-scraping
+  namespace: {{ .Release.Namespace }}
+spec:
+  ingress:
+  - from:
+    - namespaceSelector:
+        matchLabels:
+          app.kubernetes.io/name: monitoring
+      podSelector:
+        matchLabels:
+          app: prometheus
+    ports:
+    - port: 15020
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app: loki
+  policyTypes:
+  - Ingress
+{{- end }}