solution: allows to disable upstream validation

src/test/groovy/io/emeraldpay/dshackle/config/UpstreamsConfigReaderSpec.groovy

@@ -96,6 +96,22 @@ class UpstreamsConfigReaderSpec extends Specification {
         }
     }
 
+    def "Parse config with options"() {
+        setup:
+        def config = this.class.getClassLoader().getResourceAsStream("upstreams-options.yaml")
+        when:
+        def act = reader.read(config)
+        then:
+        act != null
+        act.upstreams.size() == 2
+        with(act.upstreams.get(0)) {
+            options.minPeers == 7
+        }
+        with(act.upstreams.get(1)) {
+            options.disableValidation == true
+        }
+    }
+
     def "Post process for usual strings"() {
         expect:
         s == reader.postProcess(s)

src/test/resources/upstreams-options.yaml

@@ -0,0 +1,33 @@
+version: v1
+
+defaultOptions:
+  - chains:
+      - ethereum
+    options:
+      disable-syncing: true
+      min-peers: 3
+
+upstreams:
+  - id: local
+    chain: ethereum
+    options:
+      min-peers: 7
+    connection:
+      ethereum:
+        rpc:
+          url: "http://localhost:8545"
+        ws:
+          url: "ws://localhost:8546"
+          origin: "http://localhost"
+  - id: infura
+    chain: ethereum
+    options:
+      disable-validation: true
+    connection:
+      ethereum:
+        rpc:
+          url: "https://mainnet.infura.io/v3/fa28c968191849c1aff541ad1d8511f2"
+          auth:
+            type: basic
+            username: 4fc258fe41a68149c199ad8f281f2015
+            password: 1a68f20154fc258fe4149c199ad8f281