Merge pull request #8429 from tkashem/bootstrap

OCPBUGS-30860: Use infrastructure API to detect cluster topology

Author: openshift-merge-bot[bot]

data/data/bootstrap/files/usr/local/bin/wait-for-ha-api.sh

@@ -1,18 +1,60 @@
 #!/usr/bin/env bash
 
 wait_for_ha_api() {
-    if [ "$BOOTSTRAP_INPLACE" = true ]
-    then
-	return 0
-    fi
+    while :
+    do
+        is_topology_ha
+        retcode=$?
+        if [[ $retcode -eq 2 ]]
+        then
+            echo "topology is not HighlyAvailable, no need to wait for API availability"
+            return 0
+        fi
+        if [[ $retcode -eq 0 ]]
+        then
+            ## HA topology, we can start the wait loop for API availability
+            break
+        fi
+
+        ## error happened, so let's retry after 5s
+        sleep 5
+    done
 
     echo "Waiting for at least 2 available IP addresses for the default/kubernetes service"
     while ! is_api_available
     do
-	sleep 5
+        sleep 5
     done
 }
 
+## 0 - HA control plane 'HighlyAvailable'
+## 1 - error condition
+## 2 - other topology
+is_topology_ha() {
+    output=$(oc --kubeconfig="$KUBECONFIG" get infrastructures cluster -o jsonpath='{.status.controlPlaneTopology}' 2>&1 )
+    # shellcheck disable=SC2124
+    status=$?
+    if [[ $status -ne 0 ]]
+    then
+        echo "The following error happened while retrieving infrastructures/cluster object"
+        echo "$output"
+        return 1 # unexpected error condition
+    fi
+
+    if [[ -z $output ]]
+    then
+        echo "status.infrastructureTopology of the infrastructures/cluster object is empty"
+        return 1 # unexpected error condition
+    fi
+
+    if [[ $output == "HighlyAvailable" ]]
+    then
+        return 0 ## HA control plane
+    fi
+
+    return 2 ## non HA control plane
+}
+
 ##
 ## for HA cluster, we mark the bootstrap process as complete when there
 ## are at least two IP addresses available to the endpoints