Container Service for Kubernetes:Cloud Controller Manager

Version

Image address

Release date

Description

Impact

v2.10.2

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager:v2.10.2

January 20, 2025

• New feature:

  • The node.alibabacloud.com/spot-strategy label identifies whether a node is a preemptible instance.

• Improvement:

  • Improved performance by synchronizing a server group only once, even when it is used by multiple listeners from the same Service.

• Fixed issues:

  • Fixed an issue where a load balancer instance failed to be created when a LoadBalancer Service was changed to another type and then changed back to the LoadBalancer type.

  • Fixed a "pod not found" error that occurred when updating the readiness status of a pod.

  • When updating load balancer instance labels, system labels that start with acs: are ignored.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v2.10.0

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager:v2.10.0

October 21, 2024

• New features:

  • Adds support for readinessGate.

  • The service.beta.kubernetes.io/alibaba-cloud-loadbalancer-additional-resource-tags annotation modifies tags on existing instances.

  • Adds the node.alibabacloud.com/nodepool-id and node.alibabacloud.com/instance-charge-type tags to nodes.

  • NLB now supports ALPN policies for TCPSSL listeners using the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-alpn and service.beta.kubernetes.io/alibaba-cloud-loadbalancer-alpn-policy annotations.

• Improvements:

  • Upgrades the base image to Alpine 3.18.

  • Adds a reconcileID to the log output.

• Fixed issues:

  • Fixed an issue where the CLB Controller might incorrectly manage a Service backed by an NLB instance.

This upgrade does not impact your workloads.

Version

Image address

Release date

Description

Impact

v2.9.1

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.9.1

May 10, 2024

• New features:

  • When creating a CLB or NLB instance, the cluster resource group ID is used by default.

  • CLB now supports the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-xforwardedfor-slbport to enable the X-Forwarded-SLBPort request header.

  • CLB now supports the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-xforwardedfor-clientsrcport to enable the X-Forwarded-Client-srcport request header.

  • NLB now supports the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-bandwidth-package-id to specify the ID of an EIP bandwidth plan.

  • Deletion protection and configuration read-only mode are now enabled by default for new NLB instances.

  • NLB now supports the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-vgroup-port to reuse a server group. This annotation applies only when an existing NLB instance is reused.

  • When multiple Services reuse the same NLB instance, you can use the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-weight annotation to set the traffic weight for the current Service. This annotation applies only when an existing vServer group is reused.

  • NLB instances can be reused across VPCs in the same region.

  • Dual-stack NLB instances support attaching IPv6 backend servers with the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-backend-ip-version: ipv6 annotation.

  • Dual-stack NLB instances support the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-ipv6-address-type annotation to specify the IPv6 network type (public or private).

  • NLB now supports passing VpcId, PrivateLinkEpId, and PrivateLinkEpsId information to backend servers through Proxy Protocol with the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-ppv2-pvl-ep-id-enabled, service.beta.kubernetes.io/alibaba-cloud-loadbalancer-ppv2-pvl-eps-id-enabled, and service.beta.kubernetes.io/alibaba-cloud-loadbalancer-ppv2-pvl-vpc-id-enabled annotations.

  • In dual-stack clusters, the controller now automatically adds the IPv6 addresses of ECS instances to nodes.

• Improvements:

  • The controller now uses EndpointSlice by default instead of Endpoint for endpoint discovery.

  • The controller now checks for empty route table IDs.

  • The controller now validates OpenAPI return values in reuse scenarios.

  • The controller now uses the resourceVersion=0 parameter when initiating List requests.

• Fixed issues:

  • Fixed an issue where the NetworkUnavailable status was not set during node initialization in Flannel network mode.

  • Fixed an issue where the NLB server group was assigned to the wrong resource group when using the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-resource-group-id annotation.

This upgrade does not affect your workloads.

Version

Image address

Release date

Description

Impact

v2.8.1

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.8.1

October 16, 2023

• New features:

  • Adds support for the Addon Token authorization mode.

  • NLB now supports creating IP-based server groups using the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-server-group-type annotation. See NLB server groups.

• Improvements:

  • Clients now access the API server directly to prevent stale data due to caching.

  • NLB: Improved the server group creation logic to prevent the creation of duplicate server groups.

  • CLB: Added IP address validation when mounting pod ENIs to a CLB instance, requiring the IP address to be within the cluster's VPC.

This upgrade does not affect existing services.

Version

Image address

Release date

Changes

Impact

v2.7.0

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.7.0

June 21, 2023

• New features:

  Adds support for specifying an IP address for an internal load balancer with the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-ip annotation.

• Improvements:

  • Optimized the synchronization logic for CLB and NLB server groups to reduce synchronization failures due to insufficient quotas.

  • Updated the Service hash calculation method to reduce hash changes during cluster upgrades.

• Fixed issues:

  • Fixed an issue that prevented the Service configuration from being updated after an EIP annotation was set.

  • Fixed an issue that prevented the HTTP protocol from being set for other ports after configuring the ForwardPort annotation.

This upgrade does not impact existing services.

Version

Image address

Release date

Description

Impact

v2.6.0

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.6.0

March 2, 2023

• New features:

  • The label for excluding nodes from the load balancer backend, alpha.service-controller.kubernetes.io/exclude-balancer, is deprecated. Use the new label node.kubernetes.io/exclude-from-external-load-balancers instead.

  • A single listener now supports both TCP and UDP protocols.

  • CLB supports using the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-health-check-switch annotation to disable TCP and UDP health checks.

  • CLB supports the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-proxy-protocol annotation for configuring the Proxy Protocol on TCP and UDP listeners.

    Important

    This feature does not support online migration. Enabling it requires a service upgrade with downtime. Proceed with caution.

  • CLB validates the certificate validity period when syncing an HTTPS listener. If a certificate is expired, the CLB synchronization fails.

  • NLB supports using the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-security-group-ids to configure security groups.

• Improvements:

  • Switched the resource lock for CCM leader election from endpointsleases to leases to reduce the frequency of leader switches.

  • Optimized the load balancer synchronization logic. Now, vServer groups are updated even if the load balancer's properties, such as its name or resource group, fail to update.

  • Optimized the detection criteria for node changes to reduce the number of Service synchronizations.

• Fixed issues:

  Fixed an intermittent issue where ready nodes were incorrectly marked as NotReady.

This upgrade does not affect your workloads.

Version

Image address

Release date

Description

Impact

v2.5.1

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.5.1

October 12, 2022

• New features:

  • ACK supports creating an NLB resource for a LoadBalancer Service with loadBalancerClass set to alibabacloud.com/nlb (Kubernetes 1.24+). See What is Network Load Balancer (NLB).

  • ACK supports creating different types of cloud resources based on the spec.loadBalancerClass field of a Service. If this field is not set, a CLB is created by default. If it is set to alibabacloud.com/nlb, an NLB is created. This feature is supported only in Kubernetes 1.24 and later versions.

• Improvements:

  • Fixed an issue where a reused IPv6 SLB instance could not be deleted.

  • Fixed an intermittent issue that prevented a node from being deleted.

  • The default protocol for OpenAPI calls is now HTTPS.

This upgrade has no impact on your workloads.

v2.4.5

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.4.5

June 27, 2024

Improvements:

• Updated the Service hash calculation method to reduce hash changes during events such as a cluster update.

This upgrade has no impact on your workloads.

v2.4.4

registry-cn-hangzhou.ack.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.4.4

August 7, 2023

Improvements:

• Optimized the synchronization logic for CLB server groups to reduce synchronization failures caused by insufficient quotas.

• CLB now verifies the certificate validity period during HTTPS listener synchronization. An expired certificate will cause the synchronization to fail.

• Optimized the load balancer synchronization logic. Now, vServer groups are updated even if updates to the load balancer's properties, such as its name or resource group, fail.

This upgrade has no impact on your workloads.

v2.4.3

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.4.3

March 2, 2023

Fixed an intermittent issue where ready nodes were incorrectly marked as NotReady.

This upgrade has no impact on your workloads.

v2.4.2

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.4.2

October 12, 2022

Improvements:

• Fixed an issue where a reused IPv6 SLB instance could not be deleted.

• Fixed an intermittent issue that prevented a node from being deleted.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v2.4.0

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.4.0

June 20, 2022

• New features:

  • Supports setting the billing method for an SLB instance using the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-instance-charge-type.

  • Supports setting a security policy for an SLB instance using the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-tls-cipher-policy. This feature is for HTTPS listeners only.

  • The cloud controller manager (CCM) now automatically populates an empty node.spec.providerID field when a node is added.

  • Supports adding the service.k8s.alibaba/loadbalancer-id label to Services of type LoadBalancer. This label stores the ID of the associated SLB instance.

• Improvements:

  • When a node has the ToBeDeletedByClusterAutoscaler taint, it will not be added to the backend of a load balancer.

  • Fixed an issue that prevented the deletion of conflicting routes with the same route CIDR block.

  • Optimized concurrent route synchronization to reduce false positives.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v2.3.0

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.3.0

March 21, 2022

• New features:

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-hostname sets a hostname for a Service.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-established-timeout sets the connection timeout for SLB listeners. TCP only.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-request-timeout sets the request timeout for SLB listeners. HTTP and HTTPS only.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-health-check-method specifies the health check method for SLB instances. HTTP health checks only.

• Improvements:

  • Added validation for the vServer group format when reusing an existing vServer group.

  • Optimized the vSwitch selection logic to prevent the default vSwitch from being empty.

  • Optimized the vServer group synchronization logic to reduce OpenAPI calls.

This upgrade does not affect your workloads.

Version

Image address

Release date

Description

Impact

v2.1.0

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.1.0

November 22, 2021

• New features:

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-xforwardedfor-proto configures whether to retrieve the SLB listener protocol from the X-Forwarded-Proto header.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-idle-timeout sets the idle connection timeout.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-http2-enabled enables or disables HTTP/2.

• Improvements:

  Supports setting the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-weight annotation to 0 for inter-cluster traffic switching.

• Fixed issues:

  • Fixed an issue where CLB listeners could not be created in clusters with a large number of pods.

  • Fixed an issue where changing the targetPort of a Service did not update the corresponding CLB instance.

This update has no impact on existing services.

Version

Image address

Release date

Description

Impact

v2.0.1

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v2.0.1

2021-09-02

• New features:

  • Supports reusing an existing vServer group with the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-vgroup-port annotation (only when reusing an SLB instance). See Use the CCM to deploy services across clusters.

  • Supports setting a Service's traffic weight with the service.beta.kubernetes.io/alibaba-cloud-loadbalancer-weight annotation when multiple Services reuse the same SLB instance (only when reusing a vServer group). See Use the CCM to deploy services across clusters.

  • The service.beta.kubernetes.io/alibaba-cloud-loadbalancer-connection-drain annotation configures connection draining for SLB instances. TCP and UDP only.

  • The service.beta.kubernetes.io/alibaba-cloud-loadbalancer-connection-drain-timeout annotation sets the connection draining timeout for SLB instances. TCP and UDP only.

  • Added support for setting the TargetPort field to a string value.

  • Added a finalizer to Services of type LoadBalancer.

• Improvements:

  • Upgraded the base image to Alpine 3.13.

  • Changed the Prometheus metrics port from 10258 to 8080.

  • Added scheduled synchronization of node labels.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.380-gd6d0962-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.380-gd6d0962-aliyun

2021-04-20

• Fixed an issue where the default server group could not be updated.

• Surfaced a warning event when an SLB instance has no backend servers.

This upgrade does not impact your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.378-g42eac35-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.378-g42eac35-aliyun

2021-03-08

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.339-g9830b58-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.339-g9830b58-aliyun

December 18, 2020

• Added a hash value to LoadBalancer Services to improve synchronization. When the CCM restarts, it now only synchronizes the vServer group backends for unmodified Services. This change prevents unnecessary updates to load balancer and listener configurations.

• Optimized SLB OpenAPI calls to reduce the risk of throttling.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.316-g8daf1a9-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.316-g8daf1a9-aliyun

2020-09-29

• Fixed an intermittent issue where SLB VServer groups were not updated.

• Updated the health check port from 10252 to 10258.

This upgrade does not impact your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.313-g748f81e-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.313-g748f81e-aliyun

August 10, 2020

• New features:

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-delete-protection configures SLB deletion protection. Enabled by default for new SLBs.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-modification-protection sets the configuration read-only mode for an SLB. Enabled by default for new SLBs.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-resource-group-id specifies the resource group for an SLB. Takes effect only at creation time.

  • The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-name specifies the SLB name.

  • The cloud controller manager now makes Alibaba Cloud OpenAPI calls over the private network. This change removes the dependency on the public network in all supported regions.

  • For an SLB instance created by a LoadBalancer service, a default tag is added with the format ack.aliyun.com: {your-cluster-id} (effective for new clusters only).

  • Supports the community-standard provider ID format: <cloudProvider>://<optional>/<segments>/<provider id>.

  • In new ACK clusters that use the Terway network mode, the system now directly adds the elastic network interface (ENI) IP addresses of pods as backends to SLB instances for LoadBalancer services. This improves network performance. Note: For this type of LoadBalancer service, the targetPort field does not support string values.

• Improvements:

  • Upgraded the base image to Alpine 3.11.6.

  • Updating a listener now also synchronizes its corresponding virtual server group.

  • Optimized SLB API calls to reduce the creation time of SLB instances.

This update does not impact your services.

Version

Image address

Release date

Description

Impact

v1.9.3.276-g372aa98-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.276-g372aa98-aliyun

June 11, 2020

• New features:

  • Prevents LoadBalancer Services from reusing the SLB instance associated with the cluster API server.

  • Added Prometheus metrics, including ccm_node_latencies_duration_milliseconds, ccm_route_latencies_duration_milliseconds, and ccm_slb_latencies_duration_milliseconds, to expose the synchronization latency of the CCM.

  • Emits events to track the synchronization between a Service and its associated load balancer.

• Improvements:

  • Optimized node weight calculation in Local mode (externalTrafficPolicy=Local) for more even pod distribution. See How does CCM calculate node weights in Local mode?.

  • Optimized cloud product API calls to improve efficiency and reduce the risk of throttling.

  • When a node has the service.beta.kubernetes.io/exclude-node label, deleting the node no longer deletes the associated routes.

• Fixed issues:

  • Fixed an issue that prevented the persistence timeout from being set to 0 through an annotation when updating a Service.

  • Fixed an issue that prevented setting the bandwidth annotation to 100 when updating a Service.

This update does not affect existing Services.

Version

Image address

Release date

Description

Impact

v1.9.3.239-g40d97e1-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64: v1.9.3.239-g40d97e1-aliyun

2020-03-05

• New feature:

  For LoadBalancer Services, CCM supports attaching both ECS nodes and elastic network interfaces (ENIs) as backends to an SLB instance.

• Improvements:

  • CCM now makes Alibaba Cloud OpenAPI calls over the internal network, removing its dependency on the Internet. This feature is not yet supported in the China (Beijing), China (Shanghai), and UAE (Dubai) regions.

  • The CCM now uses the DescribeRouteEntryList operation to query VPC route entries. This prevents performance issues when querying hundreds of entries in a short period.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.220-g24b1885-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64: v1.9.3.220-g24b1885-aliyun

2019-12-31

• Added support for configuring vSwitch IDs in CloudConfig in the format :vswitchid1,:vswitchid2.

• Added a retry backoff mechanism to handle OpenAPI throttling. Failed requests now rejoin the reconciliation queue after a 30 to 180-second interval.

• Adjusted the number of reconciliation worker threads to two to make full use of the OpenAPI QPS quota and accelerate reconciliation.

• Fixed a bug where concurrent map reads and writes in the aliyungo SDK caused the CCM to crash.

• When a node is removed from a Kubernetes cluster, the CCM now automatically deletes the corresponding VPC route table entry.

• Fixed an issue where dependencies prevented changes to port configurations for HTTP forwarding.

• If an SLB instance's backend server type is ECS, the CCM no longer checks the serverip field when updating backend servers. This prevents backend attachment failures caused by changes to the default serverip value in the OpenAPI.

• The CCM now adds a VPC route table entry for a node only when the node status is known.

• The CCM no longer adds a NAT IP to node metadata. This fixes an intermittent connectivity issue between the API server and the kubelet.

• When updating a listener, the CCM now calls the start listener OpenAPI operation only when the listener is inactive. This helps prevent OpenAPI throttling.

This upgrade has no impact on existing services.

Version

Image address

Release date

Description

Impact

v1.9.3.193-g6cddde4-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.193-g6cddde4-aliyun

November 19, 2019

• Excludes nodes from Cloud Controller Manager (CCM) management if they have the service.beta.kubernetes.io/exclude-node label.

• Enables batch-adding Terway-networked pods as SLB backend servers.

• Enforced a minimum node weight of 1 for Services in Local mode (where externalTrafficPolicy=Local).

• Fixed an issue where duplicate vServer groups were created due to concurrency.

• Fixed an issue where setting node weights generated stale data due to caching.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.164-g2105d2e-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3-164-g2105d2e-aliyun

September 11, 2019

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-cert-id updates a certificate.

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-forward-port enables HTTP-to-HTTPS port forwarding.

• The following annotations create an SLB instance with an ACL: service.beta.kubernetes.io/alibaba-cloud-loadbalancer-acl-status, service.beta.kubernetes.io/alibaba-cloud-loadbalancer-acl-id, and service.beta.kubernetes.io/alibaba-cloud-loadbalancer-acl-type.

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-remove-unscheduled-backend removes unschedulable nodes from backends.

• In Terway clusters, the annotation service.beta.kubernetes.io/backend-type:"eni" adds pods with ENIs as SLB backend servers, improving network forwarding performance.

• In Local mode (when externalTrafficPolicy=Local is set for a service), the service automatically sets each node's weight based on its number of pods.

This update has no impact on existing services.

Version

Image address

Release date

Description

Impact

v1.9.3.105-gfd4e547-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.105-gfd4e547-aliyun

April 15, 2019

• Added support for configuring multiple VPC route tables via a configuration file.

• Fixed an issue where updates to HTTP configurations failed to apply.

This update does not affect your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.81-gca19cd4-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.81-gca19cd4-aliyun

March 20, 2019

• ACK managed and dedicated clusters can now reuse existing SLB instances not created by ACK.

• The Cloud Controller Manager (CCM) now supports custom Kubernetes node names, removing the dependency on the Kubernetes NodeName field.

• Fixes a compatibility issue between CCM v1.8.4 and Kubernetes v1.11.5. Please upgrade CCM to the latest version.

This update has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.59-ge3bc999-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.59-ge3bc999-aliyun

December 26, 2018

• SLB instances can be shared across multiple Kubernetes Services.

  • Do not reuse an SLB instance that a Kubernetes Service creates automatically, as this can cause accidental deletion. You can reuse only the SLB instances that you create manually in the console or by calling OpenAPI.

  • Kubernetes Services that share the same SLB instance must use different frontend listening ports to avoid port conflicts.

  • When reusing an SLB instance, use the listener and vServer group names as identifiers and do not modify them.

  • You can modify the SLB instance name.

  • You cannot share an SLB instance across multiple clusters.

• VPC route tables are now managed sequentially instead of in parallel. This change prevents VPC throttling.

This upgrade does not affect your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3.10-gfb99107-aliyun

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3.10-gfb99107-aliyun

August 15, 2018

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-master-zoneid specifies the primary zone for an auto-created SLB.

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-slave-zoneid specifies the secondary zone for an auto-created SLB.

  Note

  This parameter has no effect in regions that do not support deploying SLB across both primary and secondary zones.

• Setting the annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-force-override-listeners to true overwrites all existing listeners on the SLB.

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-bandwidth specifies the bandwidth for a pay-by-bandwidth SLB. Listeners share this bandwidth.

This upgrade has no impact on your workloads.

Version

Image address

Release date

Description

Impact

v1.9.3

registry.cn-hangzhou.aliyuncs.com/acs/cloud-controller-manager-amd64:v1.9.3

June 25, 2018

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-backend-label adds worker nodes with specific labels as backend servers.

• The annotation service.beta.kubernetes.io/alibaba-cloud-loadbalancer-spec specifies an SLB instance type, such as shared-resource or high-performance.

• Supports externalTraffic: Local mode. Only nodes hosting Pods are added to the SLB backend.

• The system automatically adds or removes nodes from SLB backends when nodes join or leave the cluster.

• The system automatically updates SLB backends when node labels change.

• Added support for sticky sessions.

• When you reuse an existing SLB instance to create a service, its listeners are no longer managed. You must add them to the SLB instance manually.

This update does not affect existing workloads.