How to load the .bson collection for mongo in docker-compose

The following code for Docker and docker-compose.yml does not work properly, it fails to load sample_collection.bson into docker

Dockerfile

FROM python:3.8
WORKDIR /salary_data_ggregation
COPY requirements.txt .
RUN pip install -r requirements.txt
COPY . .
CMD ["python", "run.py"]

docker-compose.yml

services:
  bot:
    build: .
    depends_on:
      - mongo
  mongoimport:
    image: mongo
    container_name: mongo_import
    volumes:
      - ./bot/database/static_collection/sample_collection.bson:/data/sample_collection.bson
    command: mongoimport --host mongodb --db aggregation --collection sample_collection --file /data/sample_collection.bson
  mongo:
    image: mongo
    container_name: mongo_db
    ports:
      - 27017:27017
    depends_on:
      - mongoimport

I expected to see an aggregation database and a sample_collection when I enter MongoDB Compass

If I understand the question correctly, the depends_on should be the other way around - the mongoimport service should wait for mongo to start before trying to import. Moreover, the host should be --host mongo instead of mongodb.

I would also recommend having a look in the recommended docker way of prepopulating data in mongo, by mounting a JS script under /docker-entrypoint-initdb.d, which mongo will execute. See the Initializing a fresh instance
in docker hub.