ghost
commented
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feiskyer
What happened: When creating multiple LoadBalancer services with the same IP (just a preview feature from February 2021), you can't get more than 10/15 (depending on the services names) because you get a
Tag value too largeerror:Warning SyncLoadBalancerFailed 5m22s (x7 over 14m) service-controller Error syncing load balancer: failed to ensure load balancer: Retriable: false, RetryAfter: 0s, HTTPStatusCode: 400, RawError: Retriable: false, RetryAfter: 0s, HTTPStatusCode: 400, RawError: {"error":{"code":"InvalidTagValueLength","message":"Tag value too large. Following tag value 'default/public-ip-07d,default/s-mmv8b,default/s-khwwp,default/s-m2dwz,default/s-vqqwm,default/s-7shb4,default/s-wkxn8,default/s-jtbj4,default/s-28ncs,default/s-lvr87,default/s-qvnjd,default/s-q4c7g,default/s-mchg2,default/s-5rjmj,default/s-wc8v2,default/s-zkgct' exceeded the maximum length. Maximum allowed length for tag value - '256' characters."}}It seems that the Public IP in Azure is tagged with the names of the services concatenated.
What you expected to happen: I expected the name of the services not being a limitation on the number of services sharing the same IP as long as ports are available and not conflicting
How to reproduce it (as minimally and precisely as possible):
Create several LoadBalancer services with the same IP, each with different ports and after 10 /15 you start getting errors of SyncLoadBalancerFailed (I attached an example bash script)
Anything else we need to know?:
Environment:
kubectl version):A bunch of HTTP microservices, a small database, a Kafka cluster and a lot of small short-lived containers processing streams (each one with an external facing port)
lb-service-gen.txt