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Dockerfile ＞Docker Image ＞ Docker Container | Beginners Hands-On | Step by Step

All Free Tutorials - https://AutomationStepByStep.com/ Last session    • How to setup and use Docker on Free A...   STEPS Create a Dockerfile Add instructions in Dockerfile to create Docker image Run Dockerfile to create Docker image Run Docker image to create Docker container Access the application running in Docker container Dockerfile ＞ Docker Image ＞ Docker Container ＞ Access the App Step 1 - Create a new directory mkdir myapp cd myapp Step 2 - Create a file called "index.html" echo "Hello, world!" ＞ index.html Step 3 - Create a file named Dockerfile touch Dockerfile Step 4 - Open the "Dockerfile" file in a text editor and add the following lines: FROM nginx COPY index.html /usr/share/nginx/html This Dockerfile defines a new Docker image that uses the official nginx image as a base then copy the index.html file to the appropriate location in the image A Dockerfile is a text file with instructions to build a Docker Image When we run a Dockerfile, Docker image is created When we run the docker image, containers are created Step 5 - Start docker & Build docker image from dockerfile docker build -t myapp . This command builds a new Docker image with the tag "myapp" using the Dockerfile in the current directory. Step 6 - Run docker container from the image docker run -p 8080:80 myapp This tells Docker to run the myapp container and map port 8080 on your local machine to port 80 inside the container Step 7 - Access the app Open a web browser and navigate to http://localhost:8080 to see the "Hello, world!" message displayed in your web browser. If you are using AWS EC2 Linux, you will need to make sure that the security group for your AWS Linux instance allows inbound traffic on port 8080 (or whichever port you chose to map to port 80 inside the container). Here's how to modify the security group: Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/. In the navigation pane, choose "Instances". Select your AWS Linux instance in the list. Choose the "Security" tab in the bottom pane. Select the security group associated with your instance and choose the "Edit inbound rules" button. Add a new rule with the following settings: Type: "Custom TCP Rule" Protocol: "TCP" Port Range: "8080" (or whichever port you chose to map to port 80 inside the container) Source: "0.0.0.0/0" (or restrict the source IP address range to your specific needs) After modifying the security group, you should be able to access the web page served by your Docker container by navigating to http://＜Public_IP_of_your_instance＞:8080 in a web browser. Also see: Terraform -    • Terraform complete course | Step by S...   ▬▬▬▬▬▬▬ Every Like & Subscription gives me great motivation to keep working for you You can support my mission for education by sharing this knowledge and helping as many people as you can If my work has helped you, consider helping any animal near you, in any way you can Never Stop Learning Raghav Pal ▬▬▬▬ USEFUL LINKS ▬▬▬▬ Ask Raghav - https://bit.ly/2CoJGWf Shorts Eng - https://bit.ly/3H9bifV Shorts Hindi - https://bit.ly/3XY7XqN GitHub Repositories - https://github.com/Raghav-Pal Udemy Discounts - https://automationstepbystep.com/udem... Stories - https://automationstepbystep.com/stor... ▬▬ CI | CD | DEVOPS ▬▬ Jenkins Beginner - https://bit.ly/2MIn8EC Jenkins Tips & Trick - https://bit.ly/2LRt6xC Docker - https://bit.ly/2MInnzx Jenkinsfile - https://bit.ly/3JSMSZ7 Kubernetes - http://bit.ly/2MJIlMK ▬▬ API TESTING ▬▬ Web Services (API) - https://bit.ly/2MGafL7 SoapUI - https://bit.ly/2MGahmd Postman 2022 - https://bit.ly/3JWm4qX Rest Assured - https://bit.ly/3zUdhRD Karate API Testing - https://bit.ly/3w3H5Ku JMeter API Testing - https://bit.ly/3AgVPar Katalon Studio API Testing - https://bit.ly/2BwuCTN API Mocking - https://bit.ly/3bYPsjS ▬▬ PERFORMANCE TESTING ▬▬ JMeter Beginner - https://bit.ly/2oBbtIU Gatling - https://bit.ly/3QrWfkV Dockerfile Tutorial for Beginners Creating a Docker Image: Step-by-Step Guide Hands-on Docker Container Creation for Beginners How to Build a Docker Image from Scratch Dockerfile Basics: A Complete Guide Dockerfile and Docker Image Creation for Beginners Beginner's Guide to Building a Docker Container from a Dockerfile Docker Image Creation: A Comprehensive Tutorial Creating Your First Docker Container: A Beginner's Hands-On Guide Step-by-Step Guide to Building Docker Images and Containers for Beginners —