Terway Edge is an Underlay container network plug-in for ACK Edge, built on Terway and a custom Flannel Route mode. This topic covers component basics, usage notes, and release notes for each Terway Edge version.
How it works
Terway Edge uses different network solutions based on node pool type.
Cloud node pool — assigns each pod an IP address from an elastic network interface (ENI) in your Virtual Private Cloud (VPC). No pod CIDR block is needed.
Edge node pool — assigns pod IP addresses from a vSwitch CIDR block. Border Gateway Protocol (BGP) can advertise container routes to upstream switches.
Version compatibility
| terway-edge version | Kubernetes version |
|---|---|
| > v1.13 | ≥ 1.32 |
| v1.9 | ≥ 1.30 |
| v1.8 | ≥ 1.28 and < 1.32 |
Limitations
-
The container network plugin is set at cluster creation and cannot be changed.
-
Only ACK Edge clusters running Kubernetes 1.28 or later are supported.
Release notes
April 2025
| Version | Change | Release date | Impact |
|---|---|---|---|
| v1.9.14 | Disabled source/destination IP check for cloud ENIs by default. | Apr. 1, 2025 | No impact on workloads. |
| v1.8.17 | Disabled source/destination IP check for cloud ENIs by default. | Apr. 1, 2025 | No impact on workloads. |
March 2025
| Version | Change | Release date | Impact |
|---|---|---|---|
| v1.13.6 | Breaking change: terway-edge-manager (user-side control plane) is removed. terway-edge-controlplane is now a mandatory system-managed component. |
Mar. 15, 2025 | BGP sessions may restart. Ensure graceful restart is configured on your BGP switches before upgrading. |
February 2025
| Version | Change | Release date | Impact |
|---|---|---|---|
| v1.9.13 | Pod egress SNAT is now configurable. BGP failure events are now reported. | Feb. 15, 2025 | BGP sessions may restart. Ensure graceful restart is configured on your BGP switches before upgrading. |
December 2024
| Version | Change | Release date | Impact |
|---|---|---|---|
| v1.8.15 | Added pod vSwitch scaling for Edge Node Service (ENS) networks. Improved pod IP allocation efficiency in ENS networks. Added BGP advertisement graceful restart and rolling update support. Network autonomy requires cloud-hub 0.12.3 or later. | Dec. 30, 2024 | BGP sessions may restart. Ensure graceful restart is configured on your BGP switches before upgrading. |
November 2024
| Version | Change | Release date | Impact |
|---|---|---|---|
| v1.8.13 | Added ENS network support and BGP advertisement. | Nov. 15, 2024 | BGP sessions may restart. Ensure graceful restart is configured on your BGP switches before upgrading. |
September 2024
| Version | Change | Release date | Impact |
|---|---|---|---|
| v1.8.6 | Added underlay container network communication. BGP can now advertise container routes. | Sept. 15, 2024 | No impact on workloads. |
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