CodingOX edited a comment on issue #7401:
URL: https://github.com/apache/skywalking/issues/7401#issuecomment-891681509


   `there is nothing we can do.` This is a rather irresponsible reply. If there 
is no problem with my deployment process, as the core developer of skywaking, 
Can you take a little time to verify this error?I've always been uncomfortable 
with what  you rude shut down issue, maybe your sign is Virgo.Skywalking is 
really a very good product.
   
   ---
   The reason for the problem is that the UI images of 8.7 in the current 
dockerhub is wrong, `docker-entrypoint.sh` content is 
   
   ```shell
   #!/bin/bash
   
   set -e
   
   export LOGGING_CONFIG="webapp/logback.xml"
   
   [[ ! -z "$SW_OAP_ADDRESS" ]] && export 
COLLECTOR_RIBBON_LISTOFSERVERS=${SW_OAP_ADDRESS} && echo 
"COLLECTOR_RIBBON_LISTOFSERVERS=$COLLECTOR_RIBBON_LISTOFSERVERS"
   [[ ! -z "$SW_TIMEOUT" ]] && export 
COLLECTOR_RIBBON_READTIMEOUT=${SW_TIMEOUT} && echo 
"COLLECTOR_RIBBON_READTIMEOUT=$COLLECTOR_RIBBON_READTIMEOUT"
   
   exec java -jar webapp/skywalking-webapp.jar "$@"
   ```
   but 8.7 changed from zuul to gateway.
   
   The following link is correct, but it is not packaged in the 
image:https://github.com/apache/skywalking/blob/master/docker/ui/docker-entrypoint.sh
   ```shell
   set -e
   
   export LOGGING_CONFIG="webapp/logback.xml"
   
   if [[ ! -z "$SW_OAP_ADDRESS" ]]; then
     address_arr=(${SW_OAP_ADDRESS//,/ })
     for i in "${!address_arr[@]}"
     do
         JAVA_OPTS="${JAVA_OPTS} 
-Dspring.cloud.discovery.client.simple.instances.oap-service[$i].uri=${address_arr[$i]}"
     done
   fi
   
   exec java  ${JAVA_OPTS} -XX:+UnlockExperimentalVMOptions 
-XX:+UseCGroupMemoryLimitForHeap -jar webapp/skywalking-webapp.jar "$@"
   ```
   
   To sum up, I guess there was a problem when packing ui-images.
   


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