add ContainerResource source type for ehpa prediction

[whitebear009]

What type of PR is this?

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

[github-actions]

🎉 Successfully Build Images.
Now Support ARM Platforms.
Comment Post Time: 2023-08-30 18:21
Git Version: b5475b7

Docker Registry

Overview: https://hub.docker.com/u/gocrane

Image	Pull Command
crane-agent:pr-859-b5475b7	docker pull gocrane/crane-agent:pr-859-b5475b7
dashboard:pr-859-b5475b7	docker pull gocrane/dashboard:pr-859-b5475b7
metric-adapter:pr-859-b5475b7	docker pull gocrane/metric-adapter:pr-859-b5475b7
craned:pr-859-b5475b7	docker pull gocrane/craned:pr-859-b5475b7

Quick Deploy - Helm

helm repo add crane https://finops-helm.pkg.coding.net/gocrane/gocrane
helm install crane -n crane-system --create-namespace \
                   --set craned.image.repository=gocrane/craned \
                   --set craned.image.tag=pr-859-b5475b7 \
                   --set metricAdapter.image.repository=gocrane/metric-adapter \
                   --set metricAdapter.image.tag=pr-859-b5475b7 \
                   --set craneAgent.image.repository=gocrane/crane-agent \
                   --set craneAgent.image.tag=pr-859-b5475b7 \
                   --set cranedDashboard.image.repository=gocrane/dashboard \
                   --set cranedDashboard.image.tag=pr-859-b5475b7 crane/crane

---

Coding Registry

Overview: https://finops.coding.net/public-artifacts/gocrane/crane/packages

Image	Pull Command
crane-agent:pr-859-b5475b7	docker pull finops-docker.pkg.coding.net/gocrane/crane/crane-agent:pr-859-b5475b7
dashboard:pr-859-b5475b7	docker pull finops-docker.pkg.coding.net/gocrane/crane/dashboard:pr-859-b5475b7
metric-adapter:pr-859-b5475b7	docker pull finops-docker.pkg.coding.net/gocrane/crane/metric-adapter:pr-859-b5475b7
craned:pr-859-b5475b7	docker pull finops-docker.pkg.coding.net/gocrane/crane/craned:pr-859-b5475b7

Quick Deploy - Helm

helm repo add crane https://finops-helm.pkg.coding.net/gocrane/gocrane
helm install crane -n crane-system --create-namespace \
                   --set craned.image.repository=finops-docker.pkg.coding.net/gocrane/crane/craned \
                   --set craned.image.tag=pr-859-b5475b7 \
                   --set metricAdapter.image.repository=finops-docker.pkg.coding.net/gocrane/crane/metric-adapter \
                   --set metricAdapter.image.tag=pr-859-b5475b7 \
                   --set craneAgent.image.repository=finops-docker.pkg.coding.net/gocrane/crane/crane-agent \
                   --set craneAgent.image.tag=pr-859-b5475b7 \
                   --set cranedDashboard.image.repository=finops-docker.pkg.coding.net/gocrane/crane/dashboard \
                   --set cranedDashboard.image.tag=pr-859-b5475b7 crane/crane

---

Ghcr Registry

Overview: https://github.com/orgs/gocrane/packages?repo_name=crane

Image	Pull Command
crane-agent:pr-859-b5475b7	docker pull ghcr.io/gocrane/crane/crane-agent:pr-859-b5475b7
dashboard:pr-859-b5475b7	docker pull ghcr.io/gocrane/crane/dashboard:pr-859-b5475b7
metric-adapter:pr-859-b5475b7	docker pull ghcr.io/gocrane/crane/metric-adapter:pr-859-b5475b7
craned:pr-859-b5475b7	docker pull ghcr.io/gocrane/crane/craned:pr-859-b5475b7

Quick Deploy - Helm

helm repo add crane https://finops-helm.pkg.coding.net/gocrane/gocrane
helm install crane -n crane-system --create-namespace \
                   --set craned.image.repository=ghcr.io/gocrane/crane/craned \
                   --set craned.image.tag=pr-859-b5475b7 \
                   --set metricAdapter.image.repository=ghcr.io/gocrane/crane/metric-adapter \
                   --set metricAdapter.image.tag=pr-859-b5475b7 \
                   --set craneAgent.image.repository=ghcr.io/gocrane/crane/crane-agent \
                   --set craneAgent.image.tag=pr-859-b5475b7 \
                   --set cranedDashboard.image.repository=ghcr.io/gocrane/crane/dashboard \
                   --set cranedDashboard.image.tag=pr-859-b5475b7 crane/crane

[whitebear009]

@qmhu PTAL, thanks

[qmhu]

Would you help to provide a sample and explain how to convert it? Also please show how to config it in prometheus-adapter mode. tks.

[whitebear009]

Here is a sample:

metrics:
  - type: ContainerResource
    containerResource:
      container: app
      name: cpu
      target:
        type: Utilization
        averageUtilization: 50

the default expression will convert it to promql like irate(container_cpu_usage_seconds_total{container!="POD",namespace="kube-system",pod=~"pod1|pod2",container="app"}[3m]) in file https://github.com/gocrane/crane/pull/859/files#diff-58fd591c9f408018596b9c5b19515f115c97a0243aeadcab4984c3d5bed6edc9R128

In prometheus-adapter mode, its config is basicly the same with pod resource metrics. The only difference is that compared to pod resource metrics, there is an additional field representing container name. This field name defaults to "container" and can be modified through the containerLabel of prometheus-adapter(https://github.com/kubernetes-sigs/prometheus-adapter/blob/master/pkg/config/config.go#L110) (this is also the original purpose of this field, because compared with namespace/pod, container is not K8s resources, so a separate field is required)