ci: create ceph-csi-config ConfigMap for external storage tests

The StorageClasses that get deployed for the Kubernetes e2e external
storage tests reference a ConfigMap that contains the connection details
for the Ceph cluster. Without this ConfigMap, Ceph-CSI will not function
correctly.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

scripts/k8s-storage/create-configmap.sh

@@ -0,0 +1,45 @@
+#!/bin/sh
+#
+# Create the Ceph-CSI ConfigMap based on the configuration obtained from the
+# Rook deployment.
+#
+# The ConfigMap is referenced in the StorageClasses that are used by
+# driver-*.yaml manifests in the k8s-e2e-external-storage CI job.
+#
+# Requirements:
+# - kubectl in the path
+# - working KUBE_CONFIG either in environment, or default config files
+# - deployment done with Rook
+#
+
+# the namespace where Ceph-CSI is running
+NAMESPACE="${1}"
+[ -n "${NAMESPACE}" ] || { echo "ERROR: no namespace passed to ${0}"; exit 1; }
+
+# exit on error
+set -e
+
+TOOLBOX_POD=$(kubectl -n rook-ceph get pods -l app=rook-ceph-tools -o=jsonpath='{.items[0].metadata.name}')
+FS_ID=$(kubectl -n rook-ceph exec "${TOOLBOX_POD}" ceph fsid)
+MONITOR=$(kubectl -n rook-ceph get services -l app=rook-ceph-mon -o=jsonpath='{.items[0].spec.clusterIP}:{.items[0].spec.ports[0].port}')
+
+# in case the ConfigMap already exists, remove it before recreating
+kubectl -n "${NAMESPACE}" delete --ignore-not-found configmap/ceph-csi-config
+
+cat << EOF | kubectl -n "${NAMESPACE}" create -f -
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: ceph-csi-config
+data:
+  config.json: |-
+    [
+      {
+        "clusterID": "${FS_ID}",
+        "monitors": [
+          "${MONITOR}"
+        ]
+      }
+    ]
+EOF