experiment naming convention

[anencore94]

/kind feature

Describe the solution you'd like

When experiment naming convention is dissatisfied, experiment should not be created by validationg webhook or its status should be failed.

However, currently experiment created successfully and its status stays at CREATED forever.

but, katib-controller pod's log is as follows:

{"level":"error","ts":1621923906.1874073,"logger":"suggestion-controller","msg":"Reconcile Suggestion error","Suggestion":"jaeyeon-kim/1524-test","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\ngithub.com/kubeflow/katib/pkg/controller.v1beta1/suggestion.(*ReconcileSuggestion).Reconcile\n\t/go/src/github.com/kubeflow/katib/pkg/controller.v1beta1/suggestion/suggestion_controller.go:175\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:297\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"error","ts":1621923906.1875703,"logger":"controller-runtime.manager.controller.suggestion-controller","msg":"Reconciler error","name":"1524-test","namespace":"jaeyeon-kim","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:301\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"info","ts":1621923911.3088973,"logger":"suggestion-controller","msg":"Creating Service","Suggestion":"jaeyeon-kim/1524-test","name":"1524-test-random"}
{"level":"error","ts":1621923911.3107684,"logger":"suggestion-controller","msg":"Reconcile Suggestion error","Suggestion":"jaeyeon-kim/1524-test","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\ngithub.com/kubeflow/katib/pkg/controller.v1beta1/suggestion.(*ReconcileSuggestion).Reconcile\n\t/go/src/github.com/kubeflow/katib/pkg/controller.v1beta1/suggestion/suggestion_controller.go:175\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:297\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"error","ts":1621923911.3109326,"logger":"controller-runtime.manager.controller.suggestion-controller","msg":"Reconciler error","name":"1524-test","namespace":"jaeyeon-kim","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:301\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"info","ts":1621923921.5522773,"logger":"suggestion-controller","msg":"Creating Service","Suggestion":"jaeyeon-kim/1524-test","name":"1524-test-random"}
{"level":"error","ts":1621923921.5543118,"logger":"suggestion-controller","msg":"Reconcile Suggestion error","Suggestion":"jaeyeon-kim/1524-test","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\ngithub.com/kubeflow/katib/pkg/controller.v1beta1/suggestion.(*ReconcileSuggestion).Reconcile\n\t/go/src/github.com/kubeflow/katib/pkg/controller.v1beta1/suggestion/suggestion_controller.go:175\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:297\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"error","ts":1621923921.554501,"logger":"controller-runtime.manager.controller.suggestion-controller","msg":"Reconciler error","name":"1524-test","namespace":"jaeyeon-kim","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:301\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"info","ts":1621923942.0349097,"logger":"suggestion-controller","msg":"Creating Service","Suggestion":"jaeyeon-kim/1524-test","name":"1524-test-random"}
{"level":"error","ts":1621923942.0366433,"logger":"suggestion-controller","msg":"Reconcile Suggestion error","Suggestion":"jaeyeon-kim/1524-test","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\ngithub.com/kubeflow/katib/pkg/controller.v1beta1/suggestion.(*ReconcileSuggestion).Reconcile\n\t/go/src/github.com/kubeflow/katib/pkg/controller.v1beta1/suggestion/suggestion_controller.go:175\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:297\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"error","ts":1621923942.0368195,"logger":"controller-runtime.manager.controller.suggestion-controller","msg":"Reconciler error","name":"1524-test","namespace":"jaeyeon-kim","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:301\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"info","ts":1621923982.9980388,"logger":"suggestion-controller","msg":"Creating Service","Suggestion":"jaeyeon-kim/1524-test","name":"1524-test-random"}
{"level":"error","ts":1621923983.0000584,"logger":"suggestion-controller","msg":"Reconcile Suggestion error","Suggestion":"jaeyeon-kim/1524-test","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\ngithub.com/kubeflow/katib/pkg/controller.v1beta1/suggestion.(*ReconcileSuggestion).Reconcile\n\t/go/src/github.com/kubeflow/katib/pkg/controller.v1beta1/suggestion/suggestion_controller.go:175\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:297\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"error","ts":1621923983.0002046,"logger":"controller-runtime.manager.controller.suggestion-controller","msg":"Reconciler error","name":"1524-test","namespace":"jaeyeon-kim","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:301\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"info","ts":1621924064.9217365,"logger":"suggestion-controller","msg":"Creating Service","Suggestion":"jaeyeon-kim/1524-test","name":"1524-test-random"}
{"level":"error","ts":1621924064.9238694,"logger":"suggestion-controller","msg":"Reconcile Suggestion error","Suggestion":"jaeyeon-kim/1524-test","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\ngithub.com/kubeflow/katib/pkg/controller.v1beta1/suggestion.(*ReconcileSuggestion).Reconcile\n\t/go/src/github.com/kubeflow/katib/pkg/controller.v1beta1/suggestion/suggestion_controller.go:175\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:297\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"error","ts":1621924064.9240654,"logger":"controller-runtime.manager.controller.suggestion-controller","msg":"Reconciler error","name":"1524-test","namespace":"jaeyeon-kim","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:301\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"info","ts":1621924228.764417,"logger":"suggestion-controller","msg":"Creating Service","Suggestion":"jaeyeon-kim/1524-test","name":"1524-test-random"}
{"level":"error","ts":1621924228.7661974,"logger":"suggestion-controller","msg":"Reconcile Suggestion error","Suggestion":"jaeyeon-kim/1524-test","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\ngithub.com/kubeflow/katib/pkg/controller.v1beta1/suggestion.(*ReconcileSuggestion).Reconcile\n\t/go/src/github.com/kubeflow/katib/pkg/controller.v1beta1/suggestion/suggestion_controller.go:175\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:297\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"error","ts":1621924228.7663867,"logger":"controller-runtime.manager.controller.suggestion-controller","msg":"Reconciler error","name":"1524-test","namespace":"jaeyeon-kim","error":"Service \"1524-test-random\" is invalid: metadata.name: Invalid value: \"1524-test-random\": a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/pkg/mod/github.com/go-logr/zapr@v0.2.0/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:301\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:252\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.8.2/pkg/internal/controller/controller.go:215\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/go/pkg/mod/k8s.io/apimachinery@v0.20.4/pkg/util/wait/wait.go:99"}
{"level":"info","ts":1621924556.4477894,"logger":"suggestion-controller","msg":"Creating Service","Suggestion":"jaeyeon-kim/1524-test","name":"1524-test-random"}

Anything else you would like to add:

• katib version : v0.11.0

[andreyvelich]

Thank you for pointing this @anencore94!
Yes, it seems that K8s Service has different name conventions than metadata.name in Experiment CR.
I agree that we should at this check in the validation Webhook.

/good-first-issue
/kind bug

[google-oss-robot]

@andreyvelich:
This request has been marked as suitable for new contributors.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-good-first-issue command.

In response to this:

Thank you for pointing this @anencore94!
Yes, it seems that K8s Service has different name conventions than metadata.name in Experiment CR.
I agree that we should at this check in the validation Webhook.

/good-first-issue
/kind bug

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[anencore94]

Thanks for rapid answer! @andreyvelich
May I take this issue?

[andreyvelich]

Sure, that would be great!
/assign @anencore94