Example MongoDB Configuration

This guide covers configuring continuous integration pipelines for projects that have a MongoDB dependency. If you’re new to Drone please read our Tutorial and build configuration guides first.

Basic Example

In the below example we demonstrate a pipeline that launches a Mongo service container. The database server will be available at mongo:27017, where the hostname matches the service container name.

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kind: pipeline
name: default

steps:
- name: ping
  image: mongo:4
  commands:
  - sleep 5
  - mongo --host mongo --eval "db.version()"

services:
- name: mongo
  image: mongo:4
  command: [ --smallfiles ]

Common Problems

Initialization

If you are unable to connect to the Mongo container please make sure you are giving the instance adequate time to initialize and begin accepting connections.

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kind: pipeline
name: default

steps:
- name: ping
  image: mongo:4
  commands:
  - sleep 5
  - mongo --host localhost --eval "db.version()"

Incorrect Hostname

You cannot use 127.0.0.1 or localhost to connect with the Mongo container. If you are unable to connect to Mongo please verify you are using the correct hostname, corresponding with the name of the container.

Bad:

steps:
- name: ping
  image: mongo:4
  commands:
  - sleep 5
  - mongo --host localhost --eval "db.version()"

services:
- name: mongo
  image: mongo:4
  command: [ --smallfiles ]

Good:

steps:
- name: ping
  image: mongo:4
  commands:
  - sleep 5
  - mongo --host mongo --eval "db.version()"

services:
- name: mongo
  image: mongo:4
  command: [ --smallfiles ]