https://github.com/heptiolabs/healthcheck

This will give us metric on healtcheck and more granularity on checks we want to have.

/cc @slim-bean @joe-elliott

On contexts with many APIs and APIs calling other APIs in chains, having too many spans in the zipkin/jaeger dashboards may lead to a too complex usage of such dashboards and of not necessary big data volumes.

For Tyk's admin team, the steps representing the time spent in each Tyk middleware are much valuable.

But the upstream APIs teams just want to know the global time spent in Tyk interna

What would you like to be added:
statefulset/cloneset/sidecarset/job need to add metric with replica, available, unavailable, complete, number of resource .....

Why is this needed:
For example, Deploy has kube-state-metric, which can provide the metric, so we can well count and monitor it in Prometheus. Kruise'

Describe the bug

When apply traitDefinition which use context in CUE Template, It will fail to generate openapi json schema to ConfigMap

# label.yaml
apiVersion: core.oam.dev/v1beta1
kind: TraitDefinition
metadata:
  annotations:
    definition.oam.dev/description: "Add labels for your Workload."
  name: labels
  namespace: vela-system
spec:
  appliesToWorkloads:
   

What would you like to be added:
now, we have one integrate test example, add more

Why is this needed: