I have a dockerized service, It consists in a server with an API REST and a mongoDB storage system.

First of all I have these two images of docker hub:

• mongo:3.6.0
• node:alpine

I'm trying to create a backup with a snapshot from my server. When I performed the restoration and I started to wake up the services, mongoDB crashed. This is the error log:

mongo_1  | 2018-01-09T18:50:17.770+0000 F STORAGE  
[initandlisten] Unable to start up mongod due to missing featureCompatibilityVersion document.

mongo_1  | 2018-01-09T18:50:17.774+0000 F STORAGE  
[initandlisten] Please run with --repair to restore the document.

mongo_1  | 2018-01-09T18:50:17.774+0000 F -       
 [initandlisten] Fatal Assertion 40652 at src/mongo/db/db.cpp 660

mongo_1  | 2018-01-09T18:50:17.775+0000 F -        [initandlisten]

This is my Dockerfile:

FROM node:alpine


RUN mkdir /CSCFUTSAL
WORKDIR /CSCFUTSAL


COPY package.json /CSCFUTSAL

RUN cd /CSCFUTSAL

RUN npm install

RUN npm install -g @angular/cli

COPY . /CSCFUTSAL

RUN ng build --prod

EXPOSE 80

And my docker-compose.yml:

version: '2'
services:
 mongo:
  image: mongo:3.6.0
  volumes:
   - /data/mongodb/db:/data/db
  ports:
   - "27017:27017"

 api:
  build: .
  command: node ./bin/www
  volumes:
   - api-img:/CSCFUTSAL/public/plantillas
  ports:
   - "80:80"
  links:
   - mongo

volumes:
  api-img:
    driver: local

I dont know how to repair this without losing the data stored.