To use ALB Ingresses in an ACK cluster, the cluster must be in a region and zone where Application Load Balancer (ALB) is available. This topic lists the supported regions and zones, and the regions where specific ALB features are available.
Regions and zones
A region is a geographic location where Alibaba Cloud data centers are deployed. After you create a cloud resource, you cannot move it to a different region. Each region contains multiple zones — isolated locations with independent power and network infrastructure. Regions are independent of each other. Zones are isolated from each other.
Zones within the same region communicate over the internal network. Fault isolation can be enabled between zones. If faults occur in a zone, other zones are not affected and continue to run as expected. Network latency between zones in the same region is low.
ALB distributes requests across multiple zones and supports real-time disaster recovery. If a zone goes down, ALB automatically routes requests to healthy zones.
Regions and zones in which ALB is available
The following tables are for reference only. The buy page has the authoritative list.
Alibaba Cloud public cloud
| Area | Region | Zone |
|---|---|---|
| China | China (Hangzhou) | Zone G, Zone H, Zone I, Zone J, and Zone K |
| China (Shanghai) | Zone B, Zone D, Zone E, Zone F, Zone G, Zone L, Zone M, and Zone N | |
| China (Shenzhen) | Zone C, Zone D, Zone E, and Zone F | |
| China (Chengdu) | Zone A and Zone B | |
| China (Qingdao) | Zone B and Zone C | |
| China (Beijing) | Zone F, Zone G, Zone H, Zone I, Zone J, Zone K, and Zone L | |
| China (Zhangjiakou) | Zone A, Zone B, and Zone C | |
| China (Ulanqab) | Zone A and Zone B | |
| China (Hong Kong) | Zone B, Zone C, and Zone D | |
| China (Guangzhou) | Zone A and Zone B | |
| China (Heyuan) | Zone A and Zone B | |
| Asia Pacific | Singapore | Zone A, Zone B, and Zone C |
| Malaysia (Kuala Lumpur) | Zone A and Zone B | |
| Japan (Tokyo) | Zone A, Zone B, and Zone C | |
| Indonesia (Jakarta) | Zone A, Zone B, and Zone C | |
| South Korea (Seoul) | Zone A | |
| Philippines (Manila) | Zone A | |
| Thailand (Bangkok) | Zone A | |
| Europe & Americas | UK (London) | Zone A and Zone B |
| Germany (Frankfurt) | Zone A, Zone B, and Zone C | |
| US (Virginia) | Zone A and Zone B | |
| US (Silicon Valley) | Zone A and Zone B | |
| Middle East | SAU (Riyadh - Partner Region) | Zone A and Zone B |
Regions in which ALB features are supported
Dual-stack ALB instances
Dual-stack ALB instances support both IPv4 and IPv6. For more information, see IP versions.
| Area | Region |
|---|---|
| China | China (Hangzhou), China (Shanghai), China (Shenzhen), China (Chengdu), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Hong Kong), China (Guangzhou), and China (Heyuan) |
| Asia Pacific | Singapore and Japan (Tokyo) |
| Europe and Americas | Germany (Frankfurt), US (Virginia), UK (London), and US (Silicon Valley) |
| Middle East | SAU (Riyadh - Partner Region) |
WAF-enabled ALB instances
WAF-enabled ALB instances provide Web Application Firewall protection. For more information, see Activate and manage WAF-enabled ALB instances.
| Area | Region |
|---|---|
| China | China (Chengdu), China (Qingdao), China (Beijing), China (Guangzhou), China (Hangzhou), China (Ulanqab), China (Shanghai), China (Shenzhen), China (Zhangjiakou), and China (Hong Kong) |
| Asia Pacific | Philippines (Manila), Indonesia (Jakarta), Japan (Tokyo), Malaysia (Kuala Lumpur), Singapore, and Thailand (Bangkok) |
| Europe and Americas | Germany (Frankfurt), US (Silicon Valley), and US (Virginia) |
| Middle East | SAU (Riyadh - Partner Region) |
Anycast EIP association
Associating Anycast EIPs with ALB instances enables traffic to enter through the nearest access point. For more information, see Associate Anycast EIPs with an ALB instance to enable access through the nearest access point.
| Area | Region |
|---|---|
| China | China (Hong Kong) |
| Asia Pacific | South Korea (Seoul), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), and Thailand (Bangkok) |
| Europe and Americas | UK (London), US (Virginia), US (Silicon Valley), and Germany (Frankfurt) |
Cross-region ECS backend servers
Add Elastic Compute Service (ECS) instances from a different region as ALB backend servers. For more information, see Specify an ECS instance in a VPC as a backend server of ALB in a different region.
| Area | Region |
|---|---|
| China | China (Chengdu), China (Qingdao), China (Beijing), China (Guangzhou), China (Hangzhou), China (Ulanqab), China (Shanghai), China (Shenzhen), China (Zhangjiakou), and China (Hong Kong) |
| Asia Pacific | Indonesia (Jakarta), Japan (Tokyo), Malaysia (Kuala Lumpur), and Singapore |
| Europe & Americas | Germany (Frankfurt), UK (London), US (Virginia), and US (Silicon Valley) |
Managed Service for OpenTelemetry
ALB integrates with Managed Service for OpenTelemetry. For more information, see Enable Managed Service for OpenTelemetry for ALB.
| Area | Region |
|---|---|
| China | China (Hangzhou), China (Shanghai), China (Shenzhen), China (Chengdu), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Hong Kong), China (Guangzhou), and China (Heyuan) |
| Asia Pacific | Singapore, Malaysia (Kuala Lumpur), Japan (Tokyo), and Indonesia (Jakarta) |
| Europe & Americas | UK (London), Germany (Frankfurt), US (Virginia), and US (Silicon Valley) |
Query regions and zones programmatically
Use the following APIs to retrieve the current region and zone list:
DescribeRegions: queries the most recent region list.
DescribeZones: queries zones in a region.