Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.info o ffi ce: 14 -227 CSC 508/9 Software Engineering (Design & Deployment) Lecture 12. Docker

Deployment 2

Container 3

Docker 4

It is not VM • Containers share the host operating system kernel, libraries, and binaries. • Virtual machines run its own guest operating system, • Virtual machines provide full-blown virtualization of hardware resources, including CPU, memory, storage, and networking. 5

Docker | Run 6 Docker Engine

Docker | Steps 7 2. A package that includes everything needed to run software, including the code, runtime, libraries, dependencies, and configuration files. 3. A container is a runtime instance of an image. It encapsulates the execution environment for a specific application or process, including the filesystem, environment variables, network settings, and runtime options. 1. A text file that contains instructions for building a Docker image

UR e-Series Control Panel 8

Step 1. Set Up

Install Docker Desktop 10

Plugin 11

Connect with your IDE 12

Step 2. Maven Application as Usual

Create an Application 14

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Step 3. Write a Docker f ile

Docker f ile 19 https:/ /docs.docker.com/reference/dockerfile/ FROM openjdk:20-jdk

Run/Debug 20

Run/Debug 21

Run Docker f ile 22

Docker Desktop 23

Test Yourselves

Docker f ile FROM ubuntu:20.04 # Install Java RUN apt-get update && apt-get install -y openjdk-20-jdk # Install MySQL RUN apt-get update && \ DEBIAN_FRONTEND=noninteractive apt-get install -y mysql-server # Copy the application JAR file COPY target/your-app.jar /app/your-app.jar # Copy the initialization SQL script COPY init.sql /docker-entrypoint-initdb.d/init.sql # Set the working directory WORKDIR /app # Expose ports EXPOSE 3306 25

Docker f ile # Environment variables for MySQL ENV MYSQL_ROOT_PASSWORD=root ENV MYSQL_DATABASE=yourdbname # Start MySQL and the Java application CMD service mysql start && \ sleep 10 && \ mysql -u root -proot yourdbname < /docker-entrypoint-initdb.d/init.sql && \ java -jar /app/your-app.jar 26

UR e-Series Control Panel 27

Docker f ile 28

Docker f ile 29

Docker f ile 30

Questions 31

CSC 509 Software Engineering Javier Gonzalez-Sanchez, Ph.D. javiergs@calpoly.edu Fall 2024 Copyright. These slides can only be used as study material for the class CSC509 at Cal Poly. They cannot be distributed or used for another purpose.