refactor(Docker): simplify local MongoDB docker compose using official image and init script.

Author: abhinand-c

Dockerfile

@@ -0,0 +1,10 @@
+// Ref:
+// - https://www.mongodb.com/resources/products/compatibilities/deploying-a-mongodb-cluster-with-docker
+// - https://www.mongodb.com/docs/manual/reference/method/rs.initiate/#mongodb-method-rs.initiate
+try {
+    rs.status();
+} catch (e) {
+    rs.initiate({
+        _id: "mongoengine", members: [{_id: 0, host: "localhost:27017"}]
+    });
+}

docker-compose-mongo-init.js

@@ -1,7 +1,15 @@
 services:
-  mongoengine:
-    build:
-      context: .
-    image: mongoengine:latest
+  mongo:
+    image: mongo:latest
+    container_name: mongo
+    command:
+      - mongod
+      - --replSet
+      - mongoengine
+      - --bind_ip_all
+      - --setParameter
+      - maxTransactionLockRequestTimeoutMillis=1000
     ports:
-      - 27017:27017
+      - "27017:27017"
+    volumes:
+      - ./docker-compose-mongo-init.js:/docker-entrypoint-initdb.d/00-init.js