我创建了一个Certifate和一个ClusterIssuer。
我在 cert-manager pod 中看到以下内容：
I1205 10:43:33.398387 1 setup.go:73] letsencrypt: generating acme account private key "letsencrypt-key"
I1205 10:43:33.797808 1 logger.go:88] Calling GetAccount
I1205 10:43:34.622715 1 logger.go:83] Calling CreateAccount
I1205 10:43:34.826902 1 setup.go:181] letsencrypt: verified existing registration with ACME server
I1205 10:43:34.826932 1 helpers.go:147] Setting lastTransitionTime for ClusterIssuer "letsencrypt" condition "Ready" to 2018-12-05 10:43:34.826925858 +0000 UTC m=+8919.950996321
I1205 10:43:34.833364 1 controller.go:154] clusterissuers controller: Finished processing work item "letsencrypt"
I1205 10:43:43.797372 1 controller.go:140] clusterissuers controller: syncing item 'letsencrypt'
I1205 10:43:43.797637 1 setup.go:144] Skipping re-verifying ACME account as cached registration details look sufficient.
I1205 10:43:43.797667 1 controller.go:154] clusterissuers controller: Finished processing work item "letsencrypt"
I1205 11:07:17.492578 1 controller.go:140] clusterissuers controller: syncing item 'letsencrypt'
I1205 11:07:17.493076 1 setup.go:144] Skipping re-verifying ACME account as cached registration details look sufficient.
I1205 11:07:17.493107 1 controller.go:154] clusterissuers controller: Finished processing work item "letsencrypt"
I1205 11:49:10.390864 1 controller.go:171] certificates controller: syncing item 'staging/acme-crt'
I1205 11:49:10.391909 1 helpers.go:194] Setting lastTransitionTime for Certificate "acme-crt" condition "Ready" to 2018-12-05 11:49:10.391887695 +0000 UTC m=+12855.515958147
I1205 11:49:10.399460 1 controller.go:185] certificates controller: Finished processing work item "staging/acme-crt"
I1205 11:49:12.400064 1 controller.go:171] certificates controller: syncing item 'staging/acme-crt'
I1205 11:49:12.400270 1 controller.go:185] certificates controller: Finished processing work item "staging/acme-crt"
没有生成“证书” - 我假设这是因为我的Certficate资源中引用的秘密没有生成。
我该如何进一步诊断？