fix(cloudprovider/externalgrpc): `GetOptions` returns `MaxNodeProvisionTime` as 0 seconds #5936

vadasambar · 2023-07-06T19:20:25Z

Signed-off-by: vadasambar [email protected]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Adds missing MaxNodeProvisionTime in externalgrpc proto
Sets default MaxNodeProvisionTime for nodegroup's GetOptions function
Check When using externalgrpc provider, nodes are created and then immediately deleted next loop iteration #5935 for more info

Which issue(s) this PR fixes:

Fixes #5935

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Fixed: cluster-autoscaler thinks newly scaled up nodegroup using externalgrpc provider has `MaxNodeProvisionTime` set as 0 seconds and expects the new node to be registered in 0-10 seconds instead of the default 15m. Check https://github.com/kubernetes/autoscaler/issues/5935 for more info.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

vadasambar · 2023-07-06T19:38:33Z

cluster-autoscaler/cloudprovider/externalgrpc/README.md

@@ -56,8 +56,8 @@ To regenerate the gRPC code:
 1. install `protoc` and `protoc-gen-go-grpc`:

 ```bash
-go install google.golang.org/protobuf/cmd/[email protected]
-go install google.golang.org/grpc/cmd/[email protected]
+go install google.golang.org/protobuf/cmd/[email protected]


Updated to latest version at the time of creating this PR.

https://grpc.io/docs/languages/go/quickstart/

vadasambar · 2023-07-06T19:39:52Z

cluster-autoscaler/cloudprovider/externalgrpc/protos/externalgrpc.pb.go

@@ -16,17 +16,17 @@ limitations under the License.

 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.19.1
+// 	protoc-gen-go v1.28.1


Everything in this file is auto-generated using

protoc \ -I ./cluster-autoscaler \ -I ./cluster-autoscaler/vendor \ --go_out=. \ --go-grpc_out=. \ ./cluster-autoscaler/cloudprovider/externalgrpc/protos/externalgrpc.proto

https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler/cloudprovider/externalgrpc#code-generation

vadasambar · 2023-07-06T19:40:06Z

cluster-autoscaler/cloudprovider/externalgrpc/protos/externalgrpc_grpc.pb.go

@@ -15,6 +15,10 @@ limitations under the License.
 */

 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:


Everything in this file is auto-generated using

protoc \ -I ./cluster-autoscaler \ -I ./cluster-autoscaler/vendor \ --go_out=. \ --go-grpc_out=. \ ./cluster-autoscaler/cloudprovider/externalgrpc/protos/externalgrpc.proto

https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler/cloudprovider/externalgrpc#code-generation

vadasambar · 2023-07-07T06:02:32Z

cluster-autoscaler/cloudprovider/externalgrpc/protos/externalgrpc.pb.go

@@ -786,7 +786,7 @@ type GetAvailableGPUTypesResponse struct {
 	unknownFields protoimpl.UnknownFields

 	// GPU types passed in as opaque key-value pairs.
-	GpuTypes map[string]*anypb.Any `protobuf:"bytes,1,rep,name=gpuTypes,proto3" json:"gpuTypes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	GpuTypes map[string]*any1.Any `protobuf:"bytes,1,rep,name=gpuTypes,proto3" json:"gpuTypes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`


Note that any1 is imported from "github.com/golang/protobuf/ptypes/any". "github.com/golang/protobuf/ptypes/any" internally uses "google.golang.org/protobuf/types/known/anypb"'s anypb

autoscaler/cluster-autoscaler/vendor/github.com/golang/protobuf/ptypes/any/any.pb.go

Lines 4 to 15 in b569db4

package any

import (

protoreflect "google.golang.org/protobuf/reflect/protoreflect"

protoimpl "google.golang.org/protobuf/runtime/protoimpl"

anypb "google.golang.org/protobuf/types/known/anypb"

reflect "reflect"

)

// Symbols defined in public import of google/protobuf/any.proto.

type Any = anypb.Any

dbonfigli

Thank you for this.

There is another field that has been recently added to NodeGroupAutoscalingOptions , ZeroOrMaxNodeScaling, but it is constantly worked on and changed name many times recently, since the default is false and it is not causing issues I would not put it in the protobuf until the feature settles down.

Could you also please update the example at

autoscaler/cluster-autoscaler/cloudprovider/externalgrpc/examples/external-grpc-cloud-provider-service/wrapper/wrapper.go

Line 349 in b569db4

defaults := config.NodeGroupAutoscalingOptions{

with the new field?

dbonfigli · 2023-07-08T12:16:34Z

cluster-autoscaler/cloudprovider/externalgrpc/externalgrpc_node_group_test.go

@@ -248,6 +250,8 @@ func TestCloudProvider_GetOptions(t *testing.T) {
 	assert.Equal(t, 0.7, opts.ScaleDownGpuUtilizationThreshold)
 	assert.Equal(t, time.Minute, opts.ScaleDownUnneededTime)
 	assert.Equal(t, time.Hour, opts.ScaleDownUnreadyTime)
+	assert.Equal(t, time.Hour, opts.ScaleDownUnreadyTime)


duplicated line

vadasambar · 2023-07-11T18:50:33Z

@dbonfigli I have addressed the review changes. Thanks for reviewing my PR 🙏

I guess I need approval from @BigDarkClown to merge the PR.

dbonfigli · 2023-07-11T19:23:29Z

.../cloudprovider/externalgrpc/examples/external-grpc-cloud-provider-service/wrapper/wrapper.go

@@ -351,6 +351,7 @@ func (w *Wrapper) NodeGroupGetOptions(_ context.Context, req *protos.NodeGroupAu
 		ScaleDownGpuUtilizationThreshold: pbDefaults.GetScaleDownGpuUtilizationThreshold(),
 		ScaleDownUnneededTime:            pbDefaults.GetScaleDownUnneededTime().Duration,
 		ScaleDownUnreadyTime:             pbDefaults.GetScaleDownUnneededTime().Duration,
+		MaxNodeProvisionTime:             pbDefaults.GetMaxNodeProvisionTime().Duration,


can you please also add the new field in the return value below?

…onTime` as 0 seconds Signed-off-by: vadasambar <[email protected]> chore(cloudprovider/externalgrpc): fix CI failing because of wrong header - CI complains if I remove or change the copyright header Signed-off-by: vadasambar <[email protected]> chore(cloudprovider/externalgrpc): fix spacing for license headers Signed-off-by: vadasambar <[email protected]> chore(cloudprovider/externalgrpc): remove extra space in copyright header Signed-off-by: vadasambar <[email protected]> test(cloudprovider/externalgrpc): add assert for `MaxNodeProvisionTime` - add extra assert for err test case Signed-off-by: vadasambar <[email protected]> fix: duplicate line Signed-off-by: vadasambar <[email protected]> docs: add example with `MaxNodeProvisionTime` Signed-off-by: vadasambar <[email protected]> refactor: return `MaxNodeProvisionTime` from `NodeGroupGetOptions` in response Signed-off-by: vadasambar <[email protected]>

MaciekPytel · 2023-07-31T13:50:44Z

/approve
I'm going to leave lgtm to @dbonfigli as our general policy is for cloudprovider reviews to be done by their OWNERS and not core CA. The change does look good to me for whatever it's worth.

A separate point - I expect that this will keep happening as more options are moved into GetOptions. And I expect that there will be more fields added there over time - there seem to be a lot of interest in making CA configurable on per-nodegroup level and there isn't really any particular reason for us not to support that.
With that in mind - is there some long-term solution here? Should we expect anyone adding new fields to GetOptions to extend grpc? If so - can the steps be documented?

Note: I don't think my point above should be blocking for this PR; just a potential follow-up idea.

k8s-ci-robot · 2023-07-31T13:50:52Z

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dbonfigli, MaciekPytel, vadasambar

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dbonfigli · 2023-07-31T18:31:02Z

A separate point - I expect that this will keep happening as more options are moved into GetOptions. And I expect that there will be more fields added there over time - there seem to be a lot of interest in making CA configurable on per-nodegroup level and there isn't really any particular reason for us not to support that. With that in mind - is there some long-term solution here? Should we expect anyone adding new fields to GetOptions to extend grpc? If so - can the steps be documented?

Note: I don't think my point above should be blocking for this PR; just a potential follow-up idea.

I think the problem is similar for in-tree cloud providers that implement GetOption (luckily, only aws, gce, azure, ovh, civo): changing the NodeGroupAutoscalingOptions struct can result in problems if also cloud providers are not updated to handle it. For example, I am pretty sure #5649 is also breaking the ovh cloud provider, since

autoscaler/cluster-autoscaler/cloudprovider/ovhcloud/ovh_cloud_node_group.go

Line 317 in 66b56c5

    
           func (ng *NodeGroup) GetOptions(defaults config.NodeGroupAutoscalingOptions) (*config.NodeGroupAutoscalingOptions, error) {

is not defining or passing back the default for MaxNodeProvisionTime. So, the log term plan for the externalgrpc cloud provider could be the same as for the in-tree ones, either trying to make non breaking changes with new fields that have defaults values that result in working code (like for example with the new ZeroOrMaxNodeScaling), or adding the feature, or reaching out to cloudprovider maintainers putting them on notice for the upcoming breaking change.

For the externalgrcp cloud provider this problem was particular noticeable also because in practice it was mandatory to also implement GetOption, a problem that should be fixed with #5937 .

vadasambar · 2023-08-28T14:10:35Z

@dbonfigli I think this PR needs your lgtm.

dbonfigli · 2023-08-28T16:13:54Z

/lgtm

k8s-ci-robot · 2023-08-28T16:13:59Z

@dbonfigli: changing LGTM is restricted to collaborators

In response to this:

/lgtm

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.

dbonfigli · 2023-08-28T16:19:47Z

@dbonfigli I think this PR needs your lgtm.

unfortunately i am not a member of the kubernetes org.

vadasambar · 2023-09-01T18:24:10Z

@dbonfigli I think this PR needs your lgtm.

unfortunately i am not a member of the kubernetes org.

Thanks for the response. I saw your comment in #5998 (comment)

@MaciekPytel we need an LGTM on this from you because @dbonfigli is not a Kubernetes member and cannot add LGTM label to the PR.

x13n · 2023-09-04T14:07:03Z

/lgtm

(based on @dbonfigli's comment above)

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When using externalgrpc provider, nodes are created and then immediately deleted next loop iteration #5935

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vadasambar force-pushed the fix/add-max-node-provision-time-to-external-grpc-provider branch from ee49e32 to 76092a2 Compare July 7, 2023 06:19

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fix(cloudprovider/exteranlgrpc): properly handle unimplemented methods #5937

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fix MaxNodeProvisionTime and ZeroOrMaxNodeScaling node-groups handlin… #5998

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fix(cloudprovider/externalgrpc): `GetOptions` returns `MaxNodeProvisionTime` as 0 seconds #5936

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	package any

	import (
	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
	anypb "google.golang.org/protobuf/types/known/anypb"
	reflect "reflect"
	)

	// Symbols defined in public import of google/protobuf/any.proto.

	type Any = anypb.Any

fix(cloudprovider/externalgrpc): GetOptions returns MaxNodeProvisionTime as 0 seconds #5936

fix(cloudprovider/externalgrpc): GetOptions returns MaxNodeProvisionTime as 0 seconds #5936

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Which issue(s) this PR fixes:

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

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fix(cloudprovider/externalgrpc): `GetOptions` returns `MaxNodeProvisionTime` as 0 seconds #5936

fix(cloudprovider/externalgrpc): `GetOptions` returns `MaxNodeProvisionTime` as 0 seconds #5936

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