From 7d5c1f9ba78f9f5d306c47a5fef617a21d6cfcd6 Mon Sep 17 00:00:00 2001
From: jwierzbo <wierzbiks@gmail.com>
Date: Tue, 4 Jan 2022 16:56:25 +0100
Subject: [PATCH] Parameterize K8s Deployment's Tolerations in helm chart

---
 chart/kube-arangodb/README.md                 | 26 +++++++++++++++++++
 chart/kube-arangodb/templates/deployment.yaml |  3 +++
 chart/kube-arangodb/values.yaml               |  3 +++
 3 files changed, 32 insertions(+)

diff --git a/chart/kube-arangodb/README.md b/chart/kube-arangodb/README.md
index d6a552f1a..96b979239 100644
--- a/chart/kube-arangodb/README.md
+++ b/chart/kube-arangodb/README.md
@@ -119,6 +119,32 @@ NodeSelector for Deployment pods.
 
 Default: `{}`
 
+### `operator.tolerations`
+
+Tolerations for Deployment pods.
+
+There is built in configuration (can not be changed):
+```yaml
+tolerations:
+- key: "node.kubernetes.io/unreachable"
+  operator: "Exists"
+  effect: "NoExecute"
+  tolerationSeconds: 5
+- key: "node.kubernetes.io/not-ready"
+  operator: "Exists"
+  effect: "NoExecute"
+  tolerationSeconds: 5
+```
+
+which can be extended by additional entries e.g.:
+```yaml
+tolerations:
+- key: devops
+  operator: Exists
+  effect: NoSchedule
+```
+Default (empty): `[]`
+
 ### `operator.replicaCount`
 
 Replication count for Operator deployment.
diff --git a/chart/kube-arangodb/templates/deployment.yaml b/chart/kube-arangodb/templates/deployment.yaml
index 4321c1336..01815f091 100644
--- a/chart/kube-arangodb/templates/deployment.yaml
+++ b/chart/kube-arangodb/templates/deployment.yaml
@@ -178,3 +178,6 @@ spec:
                   operator: "Exists"
                   effect: "NoExecute"
                   tolerationSeconds: 5
+{{- if .Values.operator.tolerations }}
+{{ toYaml .Values.operator.tolerations | indent 16 }}
+{{- end }}
diff --git a/chart/kube-arangodb/values.yaml b/chart/kube-arangodb/values.yaml
index 0bc52823f..aa81c4208 100644
--- a/chart/kube-arangodb/values.yaml
+++ b/chart/kube-arangodb/values.yaml
@@ -44,5 +44,8 @@ operator:
     base: alpine:3.11
     metricsExporter: arangodb/arangodb-exporter:0.1.7
     arango: arangodb/arangodb:latest
+
+  tolerations: []
+
 rbac:
   enabled: true
\ No newline at end of file