To configure the replica set we need to open the shell of a MongoDB instance. Once inside the container with a bash command line, verify the key file has the correct permissions. Requirements This project uses a Docker container for virtualizing Database circumstances. Further Reading Pull Mongo DB images. mongo. In this tutorial, we will learn how to install MongoDB then create a replica set. Docker can also help us with easily setting up a MongoDB Replica Set. Fortunately, it is easy to establish a Mongo replica set by spinning up a temporary Docker container that runs a shell script to join the other Mongo containers into a cluster. You can easily find yours by invoking a sudo docker-compose ps. Use the command docker exec -i -t <CONTAINER ID> /bin/bash to get a command line interpreter. I'm working on Windows 10 pro. MongoDB replica set architecture. The Setup. In the current example let us stop primary MongoDB container by using command:-. Reconfigure replica set member when there's a previous db data. Mongodb with replica set in docker compose. In this case the network we previously created. Then we can start creating the MongoDB docker containers. The choice of the instance is arbitrary. In order to do this we can use the following command. Overview Tags. Wait for five seconds for the container to be ready. Share. To configure the replica set we need to open the shell of a MongoDB instance. This will open the mongo shell of the mongodb1 instance. This MongoDB Replica set can be spread throughout the World. I have tested this on Mongo image version 4. docker pull mongo:4. Pull all the necessary docker image from docker hub and set up replica set configuration. Hey, I am using docker-compose with a couple of container to create a local replica set. but the thing is that I wants to add user authentication to my database, which requires a key file, so I modified the docker-compose file and added a new volume for key file and -keyFile . The data folders could be moved to a different server if needed and the containers could be started on a different host. NOTE: In windows, the hosts file is located at C:\Windows\System32\drivers\etc\hosts Result. docker-compose up. 按照官方文档的说明，如果利用docker部署服务，那么依次有如下步骤: 第一步, 假如已经存在一个运行中的普通mongodb容器服务。. Here we are trying to setup a MongoDB replica set with 3 nodes. Improve this question. For them to be available, MongoDB has to be configured to run as a replica set (even if there is only one node in that set). However, now I need to convert this to be a single node replica set (for transactions to work). MongoDB Replica Set. Make our replica set work! I was looking for how to start MongoDB Replica Set with one DB instance for local development and ended up here. The choice of the instance is arbitrary. my docker-compose file looks like this: version: "3" services: mongo1: hostname: mongo1 image: mongo expose: - 27017 ports: - 27017:27017 restart: always command: --replSet rs0 --bind_ip_all . To manage deployment of multiple Docker containers across multiple hosts, typically you would use an orchestration tool like Kubernetes or Docker Swarm. We configure and start a MongoDB Replica Set with Authentication using Docker, with an automated script.. Once the MongoDB replica set is up and running, Once everything comes up, you can run docker-compose status, and see something like this:. # However if you would like a more automated approach, please see the setup.sh file and the docker-compose file which includes this startup script. This setup is meant for a non production environment only. Let's see what each part of this command does : docker run : Start a container from an image. MongoDB Replica Set in docker-compose Generate new mongodb-keyfile mongodb-keyfile Keyfiles use SCRAM challenge and response authentication mechanism where the keyfiles contain the shared password for the members. Let's review each section: storage > dbPath: is where you set the volume data inside the docker-compose.yml file replication > replSetName: this is the Mongo Replica Set name we will use it in several places replication > enableMajorityReadConcern: it is not a must have config, but it is nice to enable it net > port: the node configuration port, must be the same of the docker-compose.yml file. Initialize replica set when it's first time running services. If the container is not running you must get it be running first. In our compose.yml file, we will use .docker folder (for container volumes) docker network create mongo-cluster-dev. The command initiates the replica set and then adds mongo-2.repl as a regular member of the replica set and mongo-3.repl as an. which is works with no problem. Once we're complete with setting this up you will have a MongoDB Replica Set that has authentication . To make it work, we need to tell one of our future replica set. Creating and developing against a MongoDB replica set in local development setup helps you learn the topic, and be more confident that your application code is already adapted to run against replica sets in production. install with brew brew install direnv In security terms, we create: 2 type of users, the admin database and the cluster admin database. I have tried to run mongodb replicaSet in local with mongoldb-community in my Mac I follow mongodb doc I can run it by this command. 启动步骤. Ask Question Asked 3 years, 1 month ago. We don't even need to install MongoDB to create our replica set, since we can access the shell through our containers itself. To follow along, you will need to have Docker, and Docker Compose installed in your machine. The remaining two, are Secondary nodes, providing two-levels of data replication in the setup. -d - Run container in background and print container ID mongo --auth --replSet rslocal01 --keyFile full-path-to-keyfile-dst-on-container - The starting command: mongo with auth, a replica set and keyfile Starting the Containers Steps to create MongoDB replica-set. MongoDB is a general-purpose database that was built with the web in mind. Install MongoDB Follow the installation guide on the MongoDB website according to your operating system. 按照官方文档的说明，如果利用docker部署服务，那么依次有如下步骤: 第一步, 假如已经存在一个运行中的普通mongodb容器服务。. However, we can initialise the replication by . One of these nodes will be the Primary node - all writes to the database will happen via this node. Modified 3 years, 1 month ago. If you're not on a native-Linux host, using a named volume rather than a bind mount for the database storage could be faster. Within our Docker Host, we can create Docker Network which would give us the isolated DNS resolution across containers. Setup a mongodb service with username/password authentication for a default collection. They would initially be unaware of each other. The container must be running for this command to work. # run this after setting up the docker-compose This will instantiate the replica set. 现在在我的应用程序中，我将此 ip 作为 mongoconnection 字符串（当然带有协议名称）提供，但应用程序无法连接到 MongoDB 并抛出此错误消息（应用程序也是一个 docker 容器）： Set host name so that localhost can connect to docker container's internal ip with given mongodb configuration setting. By default, a MongoDB instance runs on port 27017. 3. docker-compose -f ~/.docker/compose/mongo.yml up -d The result of executing docker-compose command 2.2. Make this file executable by running the command: chmod +x startdb.sh. To connect to the replica set, you can use mongo client. 此时，需要关闭服务，并通过 指定 --replSet 参数 重启该服务或者重新启动一个新的mongodb容器。. Here is an excerpt from the docker-compose.yml file. Simple command to generate mongodb keyfile(depends on openssl): 2.1. Run mongo containers Here, 10.20.30.40 is the public-ip of the machine where this replica set is running. On startup, the container downloads the latest back from S3, and then initializes . Steps to create MongoDB replica-set 1. I found the answers here too complicated, so I came up with the following solution: docker-compose.yml ; If access control is configured correctly for the database, attackers should not have been able to gain access to . I'm trying to do something a little better. -p 30001:27017 : Expose port 27017 in our container, as port 30001 on the localhost. Create a docker network. 启动步骤. Therefore, Docker must be installed To set localhost host environment, Direnv must be installed how to install direnv? The first script is an AWS Cloudformation that asks a few questions. Pre-requisites The only thing we need installed on our machines is Docker, and… that's it! I want to run MongoDB replica set using docker compose file. These scripts Use Docker Swarm with the Community Edition of the official MongoDB container. 如果您的RS没有"primary"，请检查（不同）节点mongodb.log文件中的错误消息，以了解错误原因。 如果您使用的是中提到的不推荐使用的mongodb驱动程序版本（感谢brasskazoo指出），尽管存在有效的replicaset成员，但仍会显示此消息。您应该检查您的版本，必要时进行 . mongod --port 27017 --dbpath /usr/local/var/mongodb --replSet rs0 --bind_ip localhost,127.0.0.1. 假如mongodb的服务名及容器 . Fortunately, it is easy to establish a Mongo replica set by spinning up a temporary Docker container that runs a shell script to join the other Mongo containers into a cluster. I'm trying to dockerize this App, basing the MongoDB container off the official mongo:5 image. Pull Mongo DB images I have tested this on Mongo image version 4. docker pull mongo:4 2. This project makes it easy to build a MongoDB replica set circumstances by using docker container. A replica set of MongoDB in Docker Container. # NOTE: This is the simplest way of achieving a replicaset in mongodb with Docker. But, this will be referenced later. This article is going to be a walk-through in how to set up a MongoDB replica set with authentication using docker. 2. This is an inexpensive way to setup a mongodb replica set for testing. Keep its name. Deploying the Replica Set. $ docker-compose exec mongodb1 mongo. You're using the obsolete links: option and can delete it, and you can delete all of the networks: blocks to use the default network that Compose provides for you. ; we create a key file, and start the replica with authentication enabled. direnv allow. mongodb docker-compose mongodb-replica-set. Pulls 3.2K. Below is the description of what we do in this file: Run the Docker-compose file to start our container in the background. Health check the mongodb service by checking replica set status. In all the tutorials I've found online, the replica set is created in a basic fashion in docker-compose and then an administrator manually initializes the replica set in a mongo shell session.

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