dockerfile run code example
Example 1: docker run name
docker run --name <container name> -dp <local port>:<container port> <image>
Example 2: docker expose port
docker run -p [external]:[Internal]
#example (will open in localhost:8080 to container port 80)
docker run -p 8080:80
Example 3: docker ARG
$ docker build --build-arg some_variable_name=a_value
Example 4: dockerfile example
FROM ubuntu:18.04
COPY . /app
RUN make /app
CMD python /app/app.py
Example 5: 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 . .
Example 6: docker it flag
docker container run -it ubuntu bash