How to create a Mongo Docker Image with default collections and data?

Question

I need support here to build my own mongo docker image.

I have a list of scripts to create and insert data into the MongoDB that shall be called in my Dockerfile to

Answer 1

According to the description of the image on DockerHub, there is a much cleaner and simpler solution for this.

When a container is started for the first time it will execute files with extensions .sh and .js that are found in /docker-entrypoint-initdb.d. Files will be executed in alphabetical order. .js files will be executed by mongo using the database specified by the MONGO_INITDB_DATABASE variable, if it is present, or test otherwise. You may also switch databases within the .js script.

First, the Dockerfile is as simple as

FROM mongo:4
COPY setup.sh /docker-entrypoint-initdb.d/
COPY scripts /

Then, in the setup.sh, add your user/collection creation script, for example

mongo=( mongo --host 127.0.0.1 --port 27017 --quiet )
mongo+=(
    --username="$MONGO_INITDB_ROOT_USERNAME"
    --password="$MONGO_INITDB_ROOT_PASSWORD"
    --authenticationDatabase="$rootAuthDatabase"
)

CREATE_FILES=/scripts/*-create.js 
for f in $CREATE_FILES; do "${mongo[@]}" "$MONGO_INITDB_DATABASE" $f; done 

INSERT_FILES=/scripts/*-insert.js 
for f in $INSERT_FILES; do "${mongo[@]}" "$MONGO_INITDB_DATABASE" $f; done