docker build from image code example

Example 1: docker build image

docker build --tag hello .

Example 2: docker build

docker build -t [tag] .

Example 3: docker image load

$ docker load --input fedora.tar
$ docker load -i fedora.tar

Example 4: how to build docker image

docker build <Dockerfile path> -t image-name

Example 5: docker build supress build output

docker image build -t [name] . -q

Example 6: how run dockerfile

# Use the official image as a parent image.
FROM node:current-slim

# Set the working directory.
WORKDIR /usr/src/app

# Copy the file from your host to your current location.
COPY package.json .

# Run the command inside your image filesystem.
RUN npm install

# Inform Docker that the container is listening on the specified port at runtime.
EXPOSE 8080

# Run the specified command within the container.
CMD [ "npm", "start" ]

# Copy the rest of your app's source code from your host to your image filesystem.
COPY . .