Currently, kOps uses cgroupfs cgroup driver for the kubelet and CRIs. This PR defaults
the cgroup driver to systemd for clusters created with k8s versions >= 1.20.
Using systemd as the cgroup-driver is the recommended way as per
https://kubernetes.io/docs/setup/production-environment/container-runtimes/
- Resources
We enable users to set their desired capacity for cluster-autoscaler addon.
There are edge cases, especially in big clusters, where autoscaler needs
to reconcile a large number of objects thus may need increased memory or
increased cpu to avoid saturation.
- Metrics
Cluster autoscaler provides valuable insights for monitoring capacity
allocation and scheduling aspects of a cluster. In this commit, we
add proper annotation on deployment to enable Prometheus scrape metrics.
We also bump patch version of container images.
Signed-off-by: dntosas <ntosas@gmail.com>
* refactor TargetLoadBalancer to use DNSTarget interface instead of LoadBalancer
* add LoadBalancerClass fields into api
* make api machinery
* WIP: Implemented API loadbalancer class, allowing NLB and ELB support on AWS for new clusters.
* perform vendoring related tasks and apply fixes identified from hack/
dissallow spotinst + nlb
remove reflection in status_discovery.go
Add precreated additional security groups to the Master nodes in case of NLB
Remove support for attaching individual instances to NLB; only rely on ASG attachments
Don't specify Classic loadbalancer in GCE integration test
* add utility function to the kops model context to make LoadBalancer comparisons simpler
* use DNSTarget interface when locating DNSName of API ELB
* wip: create target group task
* Consolidate TargetGroup tasks
* Use context helper for determining api load balancer type to avoid nil pointers
* Update NLB creation to use target group ARN from separate task rather than creating a TG in-line
* Address staticcheck and bazel failures
* Removing NLB Attachment tasks because they're not used since we switched to defining them as a part of the ASGs
* Address PR review feedback
* Only set LB Class field for AWS clusters, fix nil pointer
* Move target group attributes from NLB task to TG task, removing unused attributes
* Add terraform and cloudformation support for NLBs, listeners, and target groups
* Update integration test for NLB support
* Fix NLB name format to pass terraform validation
* Preserve security group rule names when switching ELB to NLB to reduce destructive terraform changes
* Use elbv2 enums and address some TODOs
* Set healthcheck values in target group
* Find TG tags, fix NLB name detection
* Fix more spurious changes reported by lifecycle integration test
* Fix spotinst validation, more code cleanup
* Address more PR feedback
* ReconcileTargetGroups unit test + more code simplification
* Addressing PR feedback Renaming task 1. awstasks.LoadBalancer -> awstasks.ClassicLoadBalancer
* Addressing PR feedback Renaming task: ELBName() -> CLBName() / LinkToELB() -> LinkToCLB()
* Addressing PR feedback: Various text changes
* fix export of kubecfg
* address TargetGroup should have the same name as the NLB
* should address error when fetching tags due to missing ARN
* Update expected and crds
* Add feature table to NLB docs
* Address more feedback and remove some TODOs that arent applicable anymore
* Update spotinst validation error message
Co-authored-by: Peter Rifel <pgrifel@gmail.com>
In this commit, we initialize the support of --request-timeout flag on
the configuration of KubeAPIServer so as to enable users for setting
timeout duration value for all kinds of handlers.
Signed-off-by: dntosas <ntosas@gmail.com>
Use provider-agnostic node definition for cas instead of aws auto-discovery
Validate clusterAutoscalerSpec
Add spec documentation
Add cas docs
Make CRDs
Apply suggestions from code review
Co-authored-by: John Gardiner Myers <jgmyers@proofpoint.com>
Add enabled flag to cas config
Apply suggestions from code review
Co-authored-by: Guy Templeton <guyjtempleton@googlemail.com>
Add support for custom cas image
Support more k8s versions
Use full image names
Kops creates an "api.internal.$clustername" dns A record that points to the master IP(s)
This adds a flag that will use that name and force the CA cert to be included.
This is a workaround for client certificate authentication not working on API ELBs with ACM certificates.
The ELB has a TLS listener rather than TCP, so the client certificate is not passed through to the apiserver.
Using --internal will bypass the API ELB so that the client certificate will be passed directly to the apiserver.
This also requires that the masters' security groups allow 443 access from the client which this does not handle automatically.
Barry Melbourne
Kubernetes Prow Robot
Bharath Vedartham
dntosas
Ciprian Hacman
Dmytro Oboznyi
Sandeep Rajan
Ole Markus With
AkiraFukushima
Peter Rifel
Brian Choy
Frank Yang
Joel Carter
axpraka
Dirk Jablonski
Christian Joun
Javi Polo
nareshku
Chris Loukas
John Gardiner Myers
Michal Schott
Ryan Bonham
Ole Markus With