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https://github.com/yousafkhamza/nodejs-dockerfile
It's a sample Dockerfile. Also, it's creating a small size container that includes nodejs with a sample hello world. Maybe it's helpful for beginners.
https://github.com/yousafkhamza/nodejs-dockerfile
docker docker-image dockerfile nodejs
Last synced: about 2 months ago
JSON representation
It's a sample Dockerfile. Also, it's creating a small size container that includes nodejs with a sample hello world. Maybe it's helpful for beginners.
- Host: GitHub
- URL: https://github.com/yousafkhamza/nodejs-dockerfile
- Owner: yousafkhamza
- Created: 2021-06-12T04:27:07.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2021-07-11T09:11:53.000Z (over 3 years ago)
- Last Synced: 2023-09-20T19:52:43.355Z (over 1 year ago)
- Topics: docker, docker-image, dockerfile, nodejs
- Language: JavaScript
- Homepage:
- Size: 33.2 KB
- Stars: 4
- Watchers: 2
- Forks: 7
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Nodejs Containeraisation (Docker)
[](https://travis-ci.org/joemccann/dillinger)
---
# Description
It's a sample Dockerfile. Also, it's creating a small size container that includes nodejs with a sample hello world. Maybe it's helpful for beginners.
---
# Features
- It's a sample of a nodejs Dockerfile for image creating
- it's a very small size consumed odejs container (alpine OS)
---
# Pre-Requests
- Need to install docker on your machine
---
# Installation
- [Docker installtion]("https://docs.docker.com/engine/install/ubuntu/")
- Pre-installed [docker terminal]("https://labs.play-with-docker.com/") for biginners and it used for lerning purpose.
---
# How to build a image with Dockerfile
_Steps:_
```sh
yum install docker -y
yum install git -y
git clone https://github.com/yousafkhamza/nodejs-dockerfile.git
cd nodejs-dockerfile
```
_building steps:_
```sh
docker build -t .
#eg: docker build -t nodejs:1.1 .
docker image ls <------------------ image will list here
```
### Screenshots
_Downloading the docker file from Git and build a image_
_Build completed and image is created_
---
# How to build a Container from the image
_Stpes_
```sh
docker container run --name node -p 80:3000 -d nodejs:1.1
docker container ls <--------- container listing with status
Argument explanation:
--name <----- Using for container name otherwise docker select a random name
-p <----- Using port publish like our local port assign for that container it means localport forwards to docker container
-d <----- Detach the container otherwise its try to enter the container
```
### Screenshots
_Build a container from previously created image_
_Container running on 80 port and output_
# _Additional Informations_
---
## _Push Image to Docker Hub (upload docker image to registry)_
_I have uploaded the same Docker image to [Docker hub]("https://hub.docker.com/"). Also, why we use docker hub it's a registry of docker and we can upload our image to docker hub and then we can download the image any system like a git hub_
### _Steps_
1. _How to login Docker hub_
```sh
docker login <----------- login with your credentials which you use in docker hub
```
_Docker Login_
2. _Docker Push_
> _docker push is working with your docker hub username so you need to change the image name with your username_
```sh
docker tag nodejs:1.1 /:tag
docker push /:tag
# eg:
docker tag nodejs:1.1 yousafkhamza/nodejs:1.1 <------- tag is using for rename but the old image is alive but both are using same image id
docker push yousafkhamza/nodejs:1.1
```
_Docker tag and push_
---
## _How to pull this image from Docker hub(Download image from registry)_
_Download image from Docker hub and it no needs to login docker hub._
```sh
docker pull /:tag
# eg:
docker pull yousafkhamza/nodejs:1.1
```
_Docker pull from Docker hub_
---
# Docker File Explanation
```sh
FROM alpine:3.8 <-------- Base Image
RUN mkdir /var/node/ <-------- RUN is using for exicute shell command
WORKDIR /var/node/ <-------- Image working directory
COPY ./app.js ./ <-------- Copy node file to WD
RUN apk update
RUN apk add nodejs npm <-------- nodejs and npm installtion
RUN npm init -y
RUN npm install express <-------- nodejs module installtion
EXPOSE 3000 <-------- Just expose which port we use in container
ENTRYPOINT [ "node" ] <--------- EntryPoint we using our image default command and if you need to change container runing time you can use "docker run --entrypoint sh :tag" when you enter this your image default command is shell
CMD [ "app.js" ] <--------- CMD is working the same image default command but when you use ENTRYPOINT at that time this following entry point and it works as a argument of ENTRYPOINT eg: "node app.js"
```
---
# Conclusion
It's just a basic explanation for installing docker and how write Docker file and image and container building with a smallest nodejs. I hope you guys are understood. If you have any doubts regarding the Repo please ping me via LinkedIn.
### ⚙️ Connect with Me
