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https://github.com/nirmalnaveen20/swarm-web-deployment
Deploy Web application Using Docker Swarm
https://github.com/nirmalnaveen20/swarm-web-deployment
aws devops docker dockerswarm ec2 react
Last synced: 2 days ago
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Deploy Web application Using Docker Swarm
- Host: GitHub
- URL: https://github.com/nirmalnaveen20/swarm-web-deployment
- Owner: NirmalNaveen20
- Created: 2023-12-05T08:30:24.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2023-12-14T11:11:29.000Z (about 1 year ago)
- Last Synced: 2023-12-14T12:31:37.573Z (about 1 year ago)
- Topics: aws, devops, docker, dockerswarm, ec2, react
- Language: JavaScript
- Homepage:
- Size: 1.6 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Deploy Web application Using Docker Swarm
The project aims to deploy a web application using Docker Swarm, an efficient container orchestration tool that simplifies the management and scaling of containerized applications.
## Requirements
1. Python 3.9
2. Node.js
3. React
4. Docker
5. AWS Account
## Deploy process
#### Step 1. Create 3 ec2 instances called
* Swarm-manager
* Swarm-worker-1
* Swarm-worker-2
#### Step 2. Clone the repository to the ec2
```
git clone https://github.com/NirmalNaveen20/swarm-web-deployment
```
#### Step 3. Install docker with docker engine in all 3 nodes
[Docker installation doumentaion](https://docs.docker.com/engine/install/ubuntu/)
Check docker version
`sudo docker --version`
#### Step 4. Run docker build to create image
```
sudo docker build -t notes-app
```
#### Step 5. Add inbound rules to all 3 nodes
Custom TCP - 2377 - Anywhere IPV4
Custom TCP - 8000 - Anywhere IPV4
#### Step 6. Creating manager and worker nodes
Now open the "Swarm manager" node and run the command
```
sudo docker warm init
```
This will be creating empty swarm.
After initializing the swarm on the “swarm-manager” node, there will be one key generated to add other nodes into the swarm as a worker. Copy and run that key on the rest of the servers.
(Now, both machines are added to the swarm as a worker).
To check about all the nodes in the manager, run
`sudo docker node ls`
#### Step 7. Push Docker image to the docker hub
Before push image to the docker hub, please login with your docker-hub credentials
`docker login`
Now tag the image using your docker-hub username and version
`sudo docker tag notes-app /django-notes-app:latest`
Now push to the docker hub
`sudo docker push /django-notes-app:latest`
#### Step 8. Create docker swarm service
Now Create a service in the docker manager node server to install the application through the docker image from the docker hub.
```
sudo docker service create --name django-notes-app --replicas 3 --publish 8000:8000 /django-notes-app:latest
```
Now, run `sudo docker service ls` in manager mode you can see service is up and running
Now, this service will create a container in the Manager node and worker 01 and worker 02 node.
To check, run the command: `sudo docker ps`
Now, service will be running on all three nodes. To check this, just grab the Ip Address of any of the nodes followed by port 8000.
http://:8000 check on all 3 nodes(manager, worker 1,2 [ec2 instances])
#### Step 9. Scale up and Scale down Docker swarm service containers
In Docker Swarm, you can scale up or scale down the number of replicas (tasks) for a service using the docker service scale command. This command allows you to change the number of replicas, effectively increasing or decreasing the desired number of instances for a particular service.
Scale Up: To increase the number of replicas for a service:
`docker service scale = `
Make Drain(Inactive) to manager node using following command.
`docker node update --availability drain `
## Author
- [@Nirmal Naveen](https://www.nirmalnaveen.com/)
