From a8ee477b62c081af3e93b4a2e7834a0696531043 Mon Sep 17 00:00:00 2001
From: stefanprodan <stefan.prodan@gmail.com>
Date: Wed, 9 Oct 2019 13:22:10 +0300
Subject: [PATCH] Add selector labels option to Helm chart

---
 charts/flagger/README.md                 | 1 +
 charts/flagger/templates/deployment.yaml | 3 +++
 charts/flagger/values.yaml               | 6 +++++-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/charts/flagger/README.md b/charts/flagger/README.md
index 9806445c..51331d66 100644
--- a/charts/flagger/README.md
+++ b/charts/flagger/README.md
@@ -68,6 +68,7 @@ Parameter | Description | Default
 `image.pullPolicy` | image pull policy | `IfNotPresent`
 `prometheus.install` | if `true`, installs Prometheus configured to scrape all pods in the custer including the App Mesh sidecar | `false`
 `metricsServer` | Prometheus URL, used when `prometheus.install` is `false` | `http://prometheus.istio-system:9090`
+`selectorLabels` | list of labels that Flagger uses to create pod selectors | `app,name,app.kubernetes.io/name`
 `slack.url` | Slack incoming webhook | None
 `slack.channel` | Slack channel | None
 `slack.user` | Slack username | `flagger`
diff --git a/charts/flagger/templates/deployment.yaml b/charts/flagger/templates/deployment.yaml
index 41a61ee0..34fb7075 100644
--- a/charts/flagger/templates/deployment.yaml
+++ b/charts/flagger/templates/deployment.yaml
@@ -61,6 +61,9 @@ spec:
           {{- else }}
           - -metrics-server={{ .Values.metricsServer }}
           {{- end }}
+          {{- if .Values.selectorLabels }}
+          - -selector-labels={{ .Values.selectorLabels }}
+          {{- end }}
           {{- if .Values.namespace }}
           - -namespace={{ .Values.namespace }}
           {{- end }}
diff --git a/charts/flagger/values.yaml b/charts/flagger/values.yaml
index d1c2a7f2..c13f37e6 100644
--- a/charts/flagger/values.yaml
+++ b/charts/flagger/values.yaml
@@ -12,12 +12,16 @@ podAnnotations:
 
 metricsServer: "http://prometheus:9090"
 
-# accepted values are istio, appmesh, nginx or supergloo:mesh.namespace (defaults to istio)
+# accepted values are kubernetes, istio, linkerd, appmesh, nginx, gloo or supergloo:mesh.namespace (defaults to istio)
 meshProvider: ""
 
 # single namespace restriction
 namespace: ""
 
+# list of pod labels that Flagger uses to create pod selectors
+# defaults to: app,name,app.kubernetes.io/name
+selectorLabels: ""
+
 slack:
   user: flagger
   channel: