[build/multinode-local] Fix Multinode local cluster script (#988)

build/dev/haproxy_local_setup.sh

@@ -94,12 +94,12 @@ docker run -d --rm --name roacha \
 
 echo "Starting roachb with admin port on :8088"
 docker run -d --rm --name roachb \
-	-p 8088:8088 \
+	-p 8088:8080 \
 	$FLAGS > /dev/null
 
 echo "Starting roachc with admin port on :8089"
 docker run -d --rm --name roachc \
-	-p 8089:8089 \
+	-p 8089:8080 \
 	$FLAGS > /dev/null
 
 echo "Initialize cluster setup"

build/dev/mutli_node_local_dss.md

@@ -31,16 +31,16 @@ To test the DB connection through HAProxy, run [`./build/dev/check_scd_write.sh`
 
 Stop one of the cluster nodes by running:
 
-    ```docker container stop roacha```
+    ```docker rm -f roachc```
 
 DSS services should still be up and running. Test it by running read operations:
 
     ```./build/dev/check_scd_read.sh```
 
 Run following to bring up a new node in the cluster environment:
 
-    ```docker container run -d --name roachc \
-        --hostname roachc -p 8087:8087  \
+    ```docker run -d --name roachc \
+        --hostname roachc -p 8089:8080  \
         --network dss_sandbox-default \
         cockroachdb/cockroach:v21.2.3 start --insecure --join=roacha,roachb
     ```