Support overriding docker registry for operator and agent in Helm chart (#128)

This allows a better dev process as we push our dev builds to a different
ocir registry.

Author: simonlord

mysql-operator/templates/03-deployment.yaml

@@ -24,11 +24,12 @@ spec:
       containers:
       - name: mysql-operator-controller
         imagePullPolicy: {{ .Values.image.pullPolicy }}
-        image: iad.ocir.io/oracle/mysql-operator:{{ .Values.image.tag }}
+        image: {{ .Values.image.registry }}/mysql-operator:{{ .Values.image.tag }}
         ports:
         - containerPort: 10254
         args:
           - --v=4
 {{- if not .Values.operator.global }}
           - --namespace={{- .Values.operator.namespace }}
 {{- end }}
+          - --mysql-agent-image={{- .Values.image.registry }}/mysql-agent:{{ .Values.image.tag }}

mysql-operator/values.yaml

@@ -5,5 +5,6 @@ operator:
   global: true
   register_crd: true
 image:
+  registry: iad.ocir.io/oracle
   tag: 0.1.0
   pullPolicy: Always