Adding Opensearch docs

docs/modules/ROOT/pages/references/composite/dbaas/exoscale/opensearch.adoc

@@ -0,0 +1,8 @@
+= pkg.appcat.composite.dbaas.exoscale.opensearch
+
+The parent key for all of the following parameters is `pkg.appcat.composite.dbaas.exoscale.opensearch`.
+
+[NOTE]
+====
+Currently, there's nothing to configure.
+====

docs/modules/ROOT/pages/references/composition/dbaas/exoscale/opensearch.adoc

@@ -0,0 +1,13 @@
+= pkg.appcat.composition.dbaas.exoscale.opensearch
+
+The parent key for all of the following parameters is `pkg.appcat.composition.dbaas.exoscale.opensearch`.
+
+== `secretNamespaces:opensearch`
+
+[horizontal]
+type:: string
+default:: `provider-exoscale-secrets`
+
+The namespace where the provider-exoscale stores intermediate credential `Secrets` for `Opensearch` resources.
+The idea is to have them in their own namespace so that they don't clutter any other namespace.
+In the composition the `Secrets` are being used for accessing opensearch instances on exoscale.com.

docs/modules/ROOT/partials/nav.adoc

@@ -19,6 +19,7 @@
 ** xref:references/composite/dbaas/exoscale/mysql.adoc[composite.dbaas.exoscale.mysql]
 ** xref:references/composite/dbaas/exoscale/redis.adoc[composite.dbaas.exoscale.redis]
 ** xref:references/composite/dbaas/exoscale/kafka.adoc[composite.dbaas.exoscale.kafka]
+** xref:references/composite/dbaas/exoscale/opensearch.adoc[composite.dbaas.exoscale.opensearch]
 
 * Composition Parameters
 ** xref:references/composition/objectstorage/common.adoc[Common Parameters]
@@ -29,3 +30,4 @@
 ** xref:references/composition/dbaas/exoscale/mysql.adoc[composition.dbaas.exoscale.mysql]
 ** xref:references/composition/dbaas/exoscale/redis.adoc[composition.dbaas.exoscale.redis]
 ** xref:references/composition/dbaas/exoscale/kafka.adoc[composition.dbaas.exoscale.kafka]
+** xref:references/composition/dbaas/exoscale/opensearch.adoc[composition.dbaas.exoscale.opensearch]