[powerdns] additional env vars (#1248)

* add possibility to insert additional env vars

* update README.md

charts/stable/powerdns/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: v4.3.1
 description: PowerDNS is a DNS server, written in C++ and licensed under the GPL. It runs on most Unix derivatives. PowerDNS features a large number of different backends ranging from simple BIND style zonefiles to relational databases and load balancing/failover algorithms. A DNS recursor is provided as a separate program.
 name: powerdns
-version: 3.4.1
+version: 3.4.2
 home: https://github.com/k8s-at-home/charts/tree/master/charts/stable/powerdns
 sources:
   - http://www.github.com/PowerDNS/

charts/stable/powerdns/README.md

@@ -105,6 +105,7 @@ N/A
 | powerdns.postgres.database | string | `"pdns"` |  |
 | powerdns.postgres.password | string | `"pdnspass"` |  |
 | powerdns.postgres.username | string | `"pdns"` |  |
+| powerdns.additionalEnv | list | `[]` |  |
 | probes.liveness.enabled | bool | `true` |  |
 | probes.liveness.failureThreshold | int | `5` |  |
 | probes.liveness.initialDelaySeconds | int | `30` |  |

charts/stable/powerdns/templates/deployment.yaml

@@ -87,6 +87,9 @@ spec:
             - name: MYSQL_DNSSEC
               value: {{if (.Values.powerdns.dnssec)}}"yes"{{else}}"no"{{ end }}
 {{ end }}
+{{- with .Values.powerdns.additionalEnv }}
+            {{- toYaml . | nindent 12 }}
+{{- end }}
           ports:
             - name: dns-tcp
               containerPort: 53

charts/stable/powerdns/values.yaml

@@ -70,6 +70,27 @@ powerdns:
     database: pdns
   dnssec: true
   config: {}
+  additionalEnv: []
+  #  - name: PGSQL_HOST
+  #    valueFrom:
+  #      secretKeyRef:
+  #        name: "external-secret-name"
+  #        key: host
+  #  - name: PGSQL_USER
+  #    valueFrom:
+  #      secretKeyRef:
+  #        name: "external-secret-name"
+  #        key: user
+  #  - name: PGSQL_PASS
+  #    valueFrom:
+  #      secretKeyRef:
+  #        name: external-secret-name
+  #        key: password
+  #  - name: PGSQL_DB
+  #    valueFrom:
+  #      secretKeyRef:
+  #        name: external-secret-name
+  #        key: dbname
 
 # Enabled mariadb
 # ... for more options see https://github.com/bitnami/charts/tree/master/bitnami/mariadb