include additional libraries using postStart #5

cetic · Aug 27, 2019 · afed333 · afed333
1 parent de9f013
commit afed333
Show file tree

Hide file tree

Showing 4 changed files with 12 additions and 1 deletion.
diff --git a/Chart.yaml b/Chart.yaml
@@ -1,5 +1,5 @@
 name: nifi
-version: 0.1.5
+version: 0.1.6
 appVersion: 1.9.2
 description: Apache NiFi is a software project from the Apache Software Foundation designed to automate the flow of data between software systems. 
 keywords:

diff --git a/README.md b/README.md
@@ -89,6 +89,8 @@ The following table lists the configurable parameters of the nifi chart and the
 | `auth.ldap.host`                                                            | ldap hostname                                                                                                      | `ldap://<hostname>:<port>`      |
 | `auth.ldap.searchBase`                                                      | ldap searchBase                                                                                                    | `CN=Users,DC=example,DC=com`    |
 | `auth.ldap.searchFilter`                                                    | ldap searchFilter                                                                                                  | `CN=john`                       |
+| **postStart**                                                               |
+| `postStart`                                                                 | Include additional libraries in the Nifi containers by using the postStart handler                                 | `nil`                           |
 | **Service**                                                                 |
 | `service.headless.type`                                                     | Type of the headless service for nifi                                                                              | `ClusterIP`                     |
 | `service.loadBalancer.enabled`                                              | Enable the LoadBalancerIP service                                                                                  | `true`                          |

diff --git a/templates/statefulset.yaml b/templates/statefulset.yaml
@@ -138,6 +138,11 @@ spec:
               - -c
               - |
                 $NIFI_HOME/bin/nifi.sh stop
+{{- if .Values.postStart }}
+          postStart:
+            exec:
+              command: ["/bin/sh", "-c", {{ .Values.postStart | quote }}]
+{{- end }}
         readinessProbe:
           initialDelaySeconds: 60
           periodSeconds: 20

diff --git a/values.yaml b/values.yaml
@@ -41,6 +41,10 @@ properties:
     port: 10000
   authorizer: managed-authorizer
 
+## Include additional libraries in the Nifi containers by using the postStart handler
+## ref: https://kubernetes.io/docs/tasks/configure-pod-container/attach-handler-lifecycle-event/
+# postStart: /opt/nifi/psql; wget -P /opt/nifi/psql https://jdbc.postgresql.org/download/postgresql-42.2.6.jar
+
 # Nifi User Authentication
 auth:
   ldap: