Discovery global configuration

The Side Car Global Configuration, acts as central configuration, shared by all components using the side car container.

Components that have discovery.enabled or metrics.enabled will have the side car container added to each of their deployments by default.

global:
  sidecar:
    resources:
      requests:
        cpu: 0.1
        memory: 128Mi
      limits:
        cpu: 0.1
        memory: 128Mi

resources

key	type	description
resources	object	Parent object to define requests and limits

Resource configuration allows global limits and requests to be set for each of the deployed side car containers. Values are set per container, the sum of these resources is used to define Pod requests and limits, allowing the Kubernetes scheduler to attempt to place pod on a node with sufficient resources.

Resource Limits

When a process in the container tries to consume more than the allowed amount of memory, the system kernel terminates the process that attempted the allocation, with an out of memory (OOM) error.

resources.requests

key	type	description
requests	object	Requested resources for Pod container
requests.memory	string	Requested container memory in bytes. You can express memory as a plain integer or as a fixed-point number. See here for more details
requests.cpu	string	Requested container cpu in units of Kubernetes CPUs.

Specifying a resource request will have Kubernete's kube-scheduler to attempt to schedule your pod on a node that satisfies your request.

resources.limits

key	type	description
limits	object	Enforce resource limits on a Pod's container
limits.memory	string	Enforced maximum memory in bytes. You can express memory as a plain integer or as a fixed-point number. See here for more details
limits.cpu	string	Enforced cpu usage limit in units of Kubernetes CPUs.

When a resource limit has been set the container will be prevented from exceeding the resource usage. In the case of memory this may lead to an OOM error on the container.