git link: https://github.com/narkhedeakshay26/node-todo-cicd.git
Create a docker file for Node.js
Use the git clone command to clone the repository
$git clone https://github.com/narkhedeakshay26/node-todo-cicd.git
Then we will start creating a Docker file in the "node-todo-cicd. git" directory. So make sure you change your directory before proceeding.
Search "node js docker file" on google
Just like Github, docker has its own Docker hub.
Link for reference: https://docs.docker.com/language/nodejs/build-images/
We will follow the standard procedure:
1. Declare From
2. Copy source to destination
3. RUN.. the requirements
4. EXPOSE #### (Assign the port)
5. cmd
Creating a docker text file
#Note: Never create DockerFile.txt
$ vim DockerFile
#Never create DockerFile. I renamed the DockerFile to "Dockerfile"
Error you will face if you use DockerFile:
ubuntu@ip-172-31-81-73:~/node-todo-cicd$ docker build . -t node_todo_app:latest
#Error:unable to prepare context: unable to evaluate symlinks in Dockerfile path: lstat /home/ubuntu/node-todo-cicd/Dockerfile: no such file or directory
ubuntu@ip-172-31-81-73:~/node-todo-cicd$ ls
DockerFile Jenkinsfile README.md app.js docker-compose.yaml package-lock.json package.json test.js views
To rename the file:
# mv Current_name New_name
$ mv DockerFile Dockerfile
To build the docker file run the following command:
$ docker build . -t node_todo_app:latest
To see all the docker images on your system:
$ docker images
To run this "node_todo_app", we will need to assign the port on the EC2 instance.
Steps: EC2 instance > Security Tab> Security Group
To set an inbound rule:
Edit inbound rules >> Add rule >> Custom TCP >> Port 8000 >> Anywhere IPv4
Click on Save rules.
Now we gain access for all IPv4 8000 port access.
Now we will run the docker file on port 8000
$ docker run -p 8000:8000 -d node_todo_app:latest
Remember like this " Docker run the port "-p" on 8000:8000 in the background "-d" the "docker image".
Check the docker file running
$docker ps
Now copy the Public IPv4 address of the instance created:
Open browser >> Enter Public IPv4 address and add assigned port at the end:
