Local infra for MongoDB with replicasets

compose-mongo-notable.yml

services:
  mongo:
    image: mongo:8.0
    container_name: mongo-rs
    ports:
      - "27017:27017"
    command: ["--replSet", "rs0", "--notablescan"]
    volumes:
      - mongo_data:/data/db
    healthcheck:
      test: ["CMD", "mongosh", "--quiet", "--eval", "db.runCommand('ping').ok"]
      interval: 5s
      timeout: 5s
      retries: 10

  mongo-init-replica:
    image: mongo:8.0
    depends_on:
      mongo:
        condition: service_healthy
    entrypoint: >
      sh -c '
        echo "⏳ Waiting for Mongo to accept connections...";
        until mongosh --host mongo --quiet --eval "db.runCommand({ ping: 1 }).ok" | grep 1 > /dev/null; do
          sleep 1;
        done

        echo "🔍 Checking if replica set is already initialized...";
        IS_INIT=$(mongosh --host mongo --quiet --eval "try { rs.status().ok } catch(e) { 0 }")

        if [ "$$IS_INIT" = "1" ]; then
          echo "✅ Replica set already initialized.";
        else
          echo "🚀 Initiating replica set...";
          mongosh --host mongo --eval "rs.initiate({ _id: \"rs0\", members: [{ _id: 0, host: \"localhost:27017\" }] })";
        fi
      '
    restart: "no"

volumes:
  mongo_data:

compose-mongo.yml

services:
  mongo:
    image: mongo:8.0
    container_name: mongo-rs
    ports:
      - "27017:27017"
    command: ["--replSet", "rs0"]
    volumes:
      - mongo_data:/data/db
    healthcheck:
      test: ["CMD", "mongosh", "--quiet", "--eval", "db.runCommand('ping').ok"]
      interval: 5s
      timeout: 5s
      retries: 10

  mongo-init-replica:
    image: mongo:8.0
    depends_on:
      mongo:
        condition: service_healthy
    entrypoint: >
      sh -c '
        echo "⏳ Waiting for Mongo to accept connections...";
        until mongosh --host mongo --quiet --eval "db.runCommand({ ping: 1 }).ok" | grep 1 > /dev/null; do
          sleep 1;
        done

        echo "🔍 Checking if replica set is already initialized...";
        IS_INIT=$(mongosh --host mongo --quiet --eval "try { rs.status().ok } catch(e) { 0 }")

        if [ "$$IS_INIT" = "1" ]; then
          echo "✅ Replica set already initialized.";
        else
          echo "🚀 Initiating replica set...";
          mongosh --host mongo --eval "rs.initiate({ _id: \"rs0\", members: [{ _id: 0, host: \"localhost:27017\" }] })";
        fi
      '
    restart: "no"

volumes:
  mongo_data:

Makefile

SHELL := bash
.ONESHELL:
.SHELLFLAGS := -eu -o pipefail -c
.DELETE_ON_ERROR:
MAKEFLAGS += --warn-undefined-variables
MAKEFLAGS += --no-builtin-rules

.PHONY: mongo-up
mongo-up: ## Spin up MongoDB WITHOUT index checks
	docker compose -f compose-mongo.yml up -d

.PHONY: mongo-down
mongo-down: ## Shut down MongoDB
	docker compose -f compose-mongo.yml -f compose-mongo-notable.yml down --remove-orphans

.PHONY: mongo-notable-up
mongo-notable-up: ## Spin up MongoDB WITH index checks
	docker compose -f compose-mongo-notable.yml up -d

.PHONY: help
help:
	@awk 'BEGIN {FS = ":.*##"} /^[a-zA-Z0-9_-]+:.*##/ {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)

output.txt

❯ make help
mongo-up              Spin up MongoDB WITHOUT index checks
mongo-down            Shut down MongoDB
mongo-notable-up      Spin up MongoDB WITH index checks

❯ task -l
task: Available tasks for this project:
* mongo-down:             Shut down MongoDB
* mongo-notable-up:       Spin up MongoDB with index checks
* mongo-up:               Spin up MongoDB without index checks

taskfile.yml

# https://taskfile.dev
version: '3'

vars:

tasks:
  mongo-up:
    desc: Spin up MongoDB without index checks
    preconditions:
      - test -f compose-mongo.yml
    cmds:
      - docker compose -f compose-mongo.yml up -d
    silent: false
  mongo-notable-up:
    desc: Spin up MongoDB with index checks
    preconditions:
      - test -f compose-mongo-notable.yml
    cmds:
      - docker compose -f compose-mongo-notable.yml up -d
    silent: false
  mongo-down:
    desc: Shut down MongoDB
    preconditions:
      - test -f compose-mongo.yml
      - test -f compose-mongo-notable.yml
    cmds:
      - docker compose -f compose-mongo.yml -f compose-mongo-notable.yml down --remove-orphans
    silent: false