How to run docker container

Code examples

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docker run name

docker run --name <container name> -dp <local port>:<container port> <image>
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docker start container

$ docker start my_container
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docker run command on container

sudo docker exec -it <container name> <command>
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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 . .
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how to start docker

systemctl start docker.service
#(OR)
systemctl start docker
# it will start docker
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start a docker container

$ docker start <container_id>

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