How to use nerdctl for deploying a docker container?

384    Asked by EdythFerrill in Devops , Asked on Nov 28, 2023

How can I use nerdctl in order to deploy a docker container within a production environment? I want to deploy it with specific resource constraints and network settings. How can I approach this? 

Answered by Delbert Rauch

The tool Nerdctl is a robust and strong to in order to manage containers even with a focus on compatibility with the docker. If your objective is to deploy a container within a production environment then by using nerdctl, then you can start by crafting a YAML file that can define your specifications of the container. Then, utilize the ‘—file’ with nerdctl in order to specify this configuration file during the process of deployment. You can employ the –cups and –memory flags in order to allocate CPU cores and memory limits. Moreover, use the ‘network’ flag in order to specify the details of the networking. Here is the brief step given to deploy a docker:-

Step-1 Write a docker file by using the coding structure:-

# Use a base image
FROM Nginx: latest
# Copy your application code
COPY ./myapp/ use/ share/ Nginx/html
# Expose the port
EXPOSE 80
Step-2 Build the docker image by using:-
Nerdctl build -t myapp- image
Step-3 Run the docker container by using:-
Nerdctl run -d -p 8080:80 – name myapp- container myapp-image

All the above integration with docker-compose files allows you to seamless workflow. Therefore, Nerdctl streamlines your objective and offers a user-friendly interface during the whole process. Join our DevOps certification training course in order to get more useful concepts like this.



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