feat(secret): support annotations and labels for the basic auth secret

unittests/deployment/prometheusPodMonitor.yaml

@@ -35,3 +35,73 @@ tests:
             name: reposilite-unittest-basic-auth-credentials
             key: username
     template: templates/deployment.yaml
+
+- it: Rendering default environment variables with enabled prometheus metrics serviceMonitor and external secret
+  set:
+    prometheus.metrics.enabled: true
+    prometheus.metrics.secret.existing.enabled: true
+    prometheus.metrics.secret.existing.basicAuthUsernameKey: my-username-key
+    prometheus.metrics.secret.existing.basicAuthPasswordKey: my-password-key
+    prometheus.metrics.secret.existing.secretName: my-secret
+    prometheus.metrics.podMonitor.enabled: true
+  asserts:
+  - notExists:
+      path: spec.template.metadata.annotations.checksum/secret-reposilite-unittest-basic-auth-credentials
+    template: templates/deployment.yaml
+  - contains:
+      path: spec.template.spec.containers[0].env
+      content:
+        name: REPOSILITE_PROMETHEUS_PASSWORD
+        valueFrom:
+          secretKeyRef:
+            name: my-secret
+            key: my-password-key
+    template: templates/deployment.yaml
+  - contains:
+      path: spec.template.spec.containers[0].env
+      content:
+        name: REPOSILITE_PROMETHEUS_USER
+        valueFrom:
+          secretKeyRef:
+            name: my-secret
+            key: my-username-key
+    template: templates/deployment.yaml
+
+- it: Fail when existing secret name is undefined
+  set:
+    prometheus.metrics.enabled: true
+    prometheus.metrics.secret.existing.enabled: true
+    prometheus.metrics.secret.existing.basicAuthUsernameKey: "my-username-key"
+    prometheus.metrics.secret.existing.basicAuthPasswordKey: "my-password-key"
+    prometheus.metrics.secret.existing.secretName: ""
+    prometheus.metrics.podMonitor.enabled: true
+  asserts:
+  - failedTemplate:
+      errorMessage: "Name of the existing secret that contains the credentials for basic auth is not defined!"
+    template: templates/deployment.yaml
+
+- it: Fail when the name of the key in the secret that contains the username for basic auth is undefined
+  set:
+    prometheus.metrics.enabled: true
+    prometheus.metrics.secret.existing.enabled: true
+    prometheus.metrics.secret.existing.basicAuthUsernameKey: ""
+    prometheus.metrics.secret.existing.basicAuthPasswordKey: "my-password-key"
+    prometheus.metrics.secret.existing.secretName: "my-secret"
+    prometheus.metrics.podMonitor.enabled: true
+  asserts:
+  - failedTemplate:
+      errorMessage: "Name of the key in the secret that contains the username for basic auth is not defined!"
+    template: templates/deployment.yaml
+
+- it: Fail when the name of the key in the secret that contains the password for basic auth is undefined
+  set:
+    prometheus.metrics.enabled: true
+    prometheus.metrics.secret.existing.enabled: true
+    prometheus.metrics.secret.existing.basicAuthUsernameKey: "my-username-key"
+    prometheus.metrics.secret.existing.basicAuthPasswordKey: ""
+    prometheus.metrics.secret.existing.secretName: "my-secret"
+    prometheus.metrics.podMonitor.enabled: true
+  asserts:
+  - failedTemplate:
+      errorMessage: "Name of the key in the secret that contains the password for basic auth is not defined!"
+    template: templates/deployment.yaml