[es] skip exact version warning in dev (#25350)

* [es] skip exact version warning in dev

* feedback

* Revert "feedback"

This reverts commit f8e8aaed2a.

* loose mismatch

src/core_plugins/elasticsearch/lib/__tests__/ensure_es_version.js

@@ -42,6 +42,11 @@ describe('plugins/elasticsearch', () => {
             },
             url: esTestConfig.getUrl()
           }
+        },
+        config() {
+          return {
+            get: sinon.stub()
+          };
         }
       };
     });

src/core_plugins/elasticsearch/lib/ensure_es_version.js

@@ -23,6 +23,7 @@
  */
 
 import { forEach, get } from 'lodash';
+import { coerce } from 'semver';
 import isEsCompatibleWithKibana from './is_es_compatible_with_kibana';
 
 /**
@@ -37,6 +38,7 @@ const lastWarnedNodesForServer = new WeakMap();
 
 export function ensureEsVersion(server, kibanaVersion) {
   const { callWithInternalUser } = server.plugins.elasticsearch.getCluster('admin');
+  const isProd = server.config().get('env.prod');
 
   server.log(['plugin', 'debug'], 'Checking Elasticsearch version');
   return callWithInternalUser('nodes.info', {
@@ -61,7 +63,11 @@ export function ensureEsVersion(server, kibanaVersion) {
 
         // It's acceptable if ES and Kibana versions are not the same so long as
         // they are not incompatible, but we should warn about it
-        if (esNode.version !== kibanaVersion) {
+        // In development we ignore, this can be expected when testing against snapshots
+        // or across version qualifiers
+        const exactMisMatch = esNode.version !== kibanaVersion;
+        const looseMismatch = coerce(esNode.version).version !== coerce(kibanaVersion).version;
+        if (isProd && exactMisMatch || looseMismatch) {
           warningNodes.push(esNode);
         }
       });