Do not set exposed ports for SR-SIM linecards (#2745)

* Fix SR-SIM port mapping when using Grouped topology

* test feature

* it seems Robot doesn't support set the port

* change test to use lsof instead of ssh

---------

Co-authored-by: Michel Redondo <[email protected]>

Author: Sergio Chavez

nodes/sros/sros.go

@@ -386,6 +386,8 @@ func (n *sros) setupComponentNodes() error {
 		componentConfig.Fqdn = n.calcComponentFqdn(c.Slot)
 		if idx != 0 {
 			componentConfig.DNS = nil
+			componentConfig.PortBindings = nil
+			componentConfig.PortSet = nil
 		}
 
 		// add the component env to the componentConfig env

tests/13-srsim/07-srsim-mix.clab.yml

@@ -54,6 +54,8 @@ topology:
       mgmt-ipv6: fd00:10:78:140::2
       env:
         NOKIA_SROS_SYSTEM_BASE_MAC: 02:f3:00:00:00:00
+      ports: 
+        - 10022:22
       components:
         - slot: A
         - slot: B

tests/13-srsim/07-srsim-with-mgmt-network.robot

@@ -33,6 +33,13 @@ Ensure sros is reachable over ssh
     ...    password=NokiaSros1!
     ...    try_for=10
 
+Ensure sros redirect port is open 
+    ${rc}    ${output} =    Run And Return Rc And Output
+    ...   sudo lsof -i :10022 | grep -c :10022
+    Log    ${output}
+    Should Be Equal As Integers    ${rc}    0
+    Should Be Equal As Integers    ${output}    2
+
 Verify links in node l1
     ${rc}    ${output} =    Run And Return Rc And Output
     ...    ${CLAB_BIN} --runtime ${runtime} exec -t ${CURDIR}/${lab-file-name} --label clab-node-name\=l1 --cmd "ip link show eth1"