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The deployment descriptor lists multiple environment variables in the last few lines of the file. You would need to configure some of them according to your environment.
Environment Variable | Description | Value needs to be specified |
|---|---|---|
KUBERNETES_CLUSTER_ID | Give your cluster a unique name in order to identify clusters within Yotascale. | Yes |
PROMETHEUS_API_ENDPOINT | Point the agent to the Prometheus API by providing the URL. | Yes |
YOTASCALE_API_KEY | This Environment variable authenticates (and identifies) this agent against a Service Role that your administrators have subscribed to by default. This will be pre-populated in the deployment descriptor and does not need to be updated by the user. | No |
YOTASCALE_KUBERNETES_API_ENDPOINT | This is the URL of the Yotascale API that allows the agent to authenticate iteself with Yotascale, and send frequent heartbeats for monitoring. This URL will be pre-populated in the deployment descriptor. | No |
Step 3 (Optional): Create Self-Signed Certificate Secret for calling Prometheus API
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The following metrics enable Yotascale to build a layout of your Kubernetes cluster, determine the relationship between various Kubernetes objects, and understand resource requirements.
Metric Name | Description |
|---|---|
kube_node_info | Provides information on the nodes running in the cluster. This includes the "provider id" which contains the resource id of the AWS EC2 instance which corresponds to the Kubernetes node. |
kube_node_labels | Provides information about the node such as the instance type e.g c4.xlarge, the region, the availability zone, the os, and the role (master/node) |
kube_pod_info | Provides information on the pods running on the clusters including the name of the nodes the pods are running on |
kube_pod_labels | Provides label information for pods. |
kube_pod_container_info | Provides information on the containers running under each pod. |
kube_pod_container_resource_requests_memory_bytes | Requested memory for the container |
kube_pod_container_resource_requests_cpu_cores | Requested CPU cores for the container |
kube_pod_container_resource_limits_memory_bytes | Upper limit usage for memory usage for the container |
kube_pod_container_resource_limits_cpu_cores | Upper limit usage for CPU cores for the container |
kube_deployment_labels | The list of deployments and their basic metadata such as namespace |
kube_replicaset_owner | Name of the deployment that creates each replica set. |
kube_pod_owner | Name of the replica set or daemon set that creates each pods |
kube_hpa_labels | Identify the HPA. Map to namespace. |
kube_hpa_spec_max_replicas | Max Replicas configured in the HPA |
kube_hpa_spec_min_replicas | Min Replicas configured in the HPA |
cAdvisor Metrics
The following metrics enable Yotascale to determine actual resource usage for each of your containers.
Metric Name | Description |
|---|
Metric Name | Description |
|---|---|
container_memory_usage_bytes | Actual memory usage by a container |
container_cpu_usage_seconds_total | Actual CPU core usage by a container |
Release Notes
0.1.7
docker pull yotascale/yotascale-kubernetes-agent:0.1.7
The labels "pod_name" and "container_name" have been removed from cAdvisor metrics in Kubernetes 1.16 and are now available as "pod" and "container". The agent now has support for both metric names.
Added ability to upload detailed logs to Yotascale allowing Yotascale to show logs and detailed agent status on the UI (as part of a later release of the UI)
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