feat: add initContainers (eclipse-tractusx#142)

* feat: add initContainers

* chore: add initContainer description

* fix: only template initContainer if present

* chore: use tpl instead common to render initContianers

As from pmoscode suggested the tpl function can be used with toYaml to avoid the Bitnami common template function.

---------

Co-authored-by: Dominik Pinsel <dominik.pinsel@mercedes-benz.com>

charts/managed-identity-wallet/README.md

@@ -97,6 +97,7 @@ See [helm upgrade](https://helm.sh/docs/helm/helm_upgrade/) for command document
 | ingress.enabled | bool | `false` | Enable ingress controller resource |
 | ingress.hosts | list | `[]` | Ingress accepted hostnames |
 | ingress.tls | list | `[]` | Ingress TLS configuration |
+| initContainers | list | `[]` | add initContainers to the miw deployment |
 | keycloak.auth.adminPassword | string | `""` | Keycloak admin password |
 | keycloak.auth.adminUser | string | `"admin"` | Keycloak admin user |
 | keycloak.enabled | bool | `true` | Enable to deploy Keycloak |

charts/managed-identity-wallet/templates/deployment.yaml

@@ -44,6 +44,10 @@ spec:
       serviceAccountName: {{ include "managed-identity-wallet.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      {{- if .Values.initContainers }}
+      initContainers:
+        {{- tpl (.Values.initContainers | toYaml) $ | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ .Chart.Name }}
           securityContext:

charts/managed-identity-wallet/values.yaml

@@ -139,6 +139,9 @@ affinity: {}
 # -- PodAnnotation configuration
 podAnnotations: {}
 
+# -- add initContainers to the miw deployment
+initContainers: []
+
 ## @section Managed Identity Wallet Primary Parameters
 ##
 miw: