A very beginner friendly Dockerfile, to help you get started.
This is how a typical Dockerfile looks like
# A dockerfile must always start by importing the base image.
# We use the keyword 'FROM' to do that.
# In our example, we want import the node image.
# So we write 'node' for the image name and 'latest' for the version.
FROM node:latest
# In order to launch our nodejs code, we must import it into our image.
# We use the keyword 'COPY' to do that.
# The first parameter 'app.js' is the name of the file on the host.
# The second parameter '/' is the path where to put the file on the image.
# Here we put the file at the image root folder.
COPY app.js /
# We need to define the command to launch when we are going to run the image.
# We use the keyword 'CMD' to do that.
# The following command will execute "node ./app.js".
CMD [ "node", "app.js" ]Step 1: Clone to repo
git clone https://github.com/trulymittal/docker.git
Step 2: cd into the repo
cd docker
Step 3: Build the docker image
docker build -t name-of-image-your-choice .
Step 4: Run the docker container from the image
docker run name-of-image-your-choice
Thats all you need to do, to run this basic example.
This project is licensed under the MIT License.