help: flag --private-key-path is no longer set by default

Since --private-key-path isn't set by default, it is now necessary to
pass it explicitely. Note that secretKey wasn't used before this commit;
with this commit, secretKey becomes useful.

Author: maelvls

deploy/charts/venafi-kubernetes-agent/templates/deployment.yaml

@@ -65,6 +65,8 @@ spec:
             {{- else }}
             - "--client-id"
             - {{ .Values.config.clientId | quote }}
+            - "--private-key-path"
+            - "/etc/venafi/agent/key/{{ .Values.authentication.secretKey }}"
             {{- end }}
             - "-p"
             - "0h1m0s"

pkg/agent/config.go

@@ -192,6 +192,7 @@ func InitAgentCmdFlags(c *cobra.Command, cfg *AgentCmdFlags) {
 		false,
 		fmt.Sprintf("Turns on the %s mode. The flag --credentials-file must also be passed.", JetstackSecureOAuth),
 	)
+	c.PersistentFlags().MarkHidden("venafi-cloud")
 	c.PersistentFlags().StringVarP(
 		&cfg.ClientID,
 		"client-id",