Merge pull request #44 from SoftwareAG/dev-msr-thr

Using of Stakater Reloader @ MSR
SoftwareAG · Feb 23, 2024 · deec72b · deec72b
2 parents bcf9ab9 + 8d15285
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diff --git a/microservicesruntime/examples/stakater-reloader/README.md b/microservicesruntime/examples/stakater-reloader/README.md
@@ -0,0 +1,14 @@
+# Using of Stakater Reloader
+
+Per default, the Microservices Runtime pod is not restarted on changed `application.properties` (in *ConfigMap*) between Helm release upgrades. The [Stakataer Reloader](https://github.com/stakater/Reloader) can solve and help this issue.
+
+## Increase `values.yaml`
+
+Add following annotation value in `podAnnotations` to define the dependency between deployment and *ConfigMap*  ...
+
+```
+podAnnotations:
+  configmap.reloader.stakater.com/reload: "{{ include \"common.names.fullname\" . }}"
+```
+
+If the *ConfigMap* (evaluated by `{{ include \"common.names.fullname\" . }}`) with the content of `application.properties` is changed, [Stakataer Reloader](https://github.com/stakater/Reloader) restarts the pod after installing Helm release.
diff --git a/microservicesruntime/helm/README.md b/microservicesruntime/helm/README.md
@@ -59,6 +59,7 @@ Sub-folder `examples` contains some *values* examples for more use-cases. To use
 | [msr-with-tls](../examples/msr-with-tls/README.md) | Configure Ingress with TLS |
 | [process-engine](../examples/process-engine/README.md) | Deploy MSR as Process Engine |
 | [service-auditing-monitor](../examples/service-auditing-monitor/README.md) | Deploy MSR as Service Auditing Monitor |
+| [Stakater Reloader](../examples/stakater-reloader/README.md) | Utility to restart MSR pod on configuration changes |
 
 ## Install Microservices Runtime Release
 

diff --git a/microservicesruntime/helm/README.md.gotmpl b/microservicesruntime/helm/README.md.gotmpl
@@ -59,6 +59,7 @@ Sub-folder `examples` contains some *values* examples for more use-cases. To use
 | [msr-with-tls](../examples/msr-with-tls/README.md) | Configure Ingress with TLS |
 | [process-engine](../examples/process-engine/README.md) | Deploy MSR as Process Engine |
 | [service-auditing-monitor](../examples/service-auditing-monitor/README.md) | Deploy MSR as Service Auditing Monitor |
+| [Stakater Reloader](../examples/stakater-reloader/README.md) | Utility to restart MSR pod on configuration changes |
 
 ## Install Microservices Runtime Release
 

diff --git a/microservicesruntime/helm/templates/deployment.yaml b/microservicesruntime/helm/templates/deployment.yaml
@@ -39,8 +39,9 @@ spec:
   template:
     metadata:
       annotations:
+        {{- $context := . }}
         {{- with .Values.podAnnotations }}
-          {{- toYaml . | nindent 8 }}
+          {{- tpl (toYaml .) $context | nindent 8 }}
         {{- end }}
         {{- include "common.prometheus.annotations" (dict "port" .Values.service.port) | nindent 8 }}
       labels: