OCI ISL update prototype: add random port

.github/workflows/_oci.yaml

@@ -14,7 +14,9 @@ on:
         type: string
         required: true
         description: Global CIDR to be added/deleted from security list of slurm cluster
-
+    outputs:
+      SSH_PORT: ${{ steps.new-ingress-list.outputs.SSH_PORT}}
+
 permissions:
   contents: read  # to fetch code
   actions:  read # to cancel previous workflows
@@ -37,11 +39,6 @@ jobs:
         with:
           command: 'iam compartment list --compartment-id-in-subtree=true'
           query: "data[?name=='jax'].id | [0]"
-
-      - name: Debug
-        run: |
-          echo ${{ steps.find-compartment-id.outputs.output }}
-          echo ${{ steps.find-compartment-id.outputs.raw_output }}
 
       - name: Get security list from the compartment
         uses: oracle-actions/[email protected]
@@ -53,6 +50,7 @@ jobs:
         id: new-ingress-list
         run: |
           description="JTB GitHub Runner ${{ inputs.JOB_ID }}"
+          port=$((RANDOM % 9000 + 1000)) # generate port in range [1000,10000]
           if [[ "${{ inputs.ACTION }}" == "add" ]]; then
             sl_update='{"description": "'$description'",
                 "icmp-options": null,
@@ -62,8 +60,8 @@ jobs:
                 "source-type": "CIDR_BLOCK",
                 "tcp-options": {
                   "destination-port-range": {
-                    "max": 22,
-                    "min": 22
+                    "max": '$port',
+                    "min": '$port'
                   },
                   "source-port-range": null
                 },
@@ -84,3 +82,4 @@ jobs:
           fi
 
           oci network security-list update --force --security-list-id ${{ secrets.OCI_SECURITY_LIST_ID }} --ingress-security-rules "$updated_isr" >/dev/null 2>&1
+          echo "SSH_PORT=$port" >> $GITHUB_OUTPUT