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Container Examples

If you have installed Docker replace podman with docker.

Syntax

podman pull <imagename>
podman run <imagename>

OR

docker pull <imagename>
docker run <imagename>

Examples:

podman pull hello-world
podman run hello-world
podman container ls
podman container ls -a
podman image ls

docker pull hello-world
docker run hello-world
docker container ls
docker container ls -a
docker image ls

Optional Setting (For PODMAN)

/etc/containers/registries.conf

unqualified-search-registries = ["docker.io"]

Deploy MySQL Database using Containers

Create the following folder

Linux / Mac

mkdir -p container/mysql
cd container/mysql

Windows

md container
cd container
md mysql
cd mysql

Note: If you already have MySQL Server installed in your machine then please change the port to 3307 as given below.

-p 3307:3306 \

Run the container


podman run --name mysql -d \
    -p 3306:3306 \
    -e MYSQL_ROOT_PASSWORD=root-pwd \
    -e MYSQL_ROOT_HOST="%" \
    -e MYSQL_DATABASE=mydb \
    -e MYSQL_USER=remote_user \
    -e MYSQL_PASSWORD=remote_user-pwd \
    docker.io/library/mysql:8.4.4

-d : detached (background mode)
-p : 3306:3306 maps mysql default port 3306 to host machines port 3306
    3307:3306 maps mysql default port 3306 to host machines port 3307

-e MYSQL_ROOT_HOST="%" Allows to login to MySQL using MySQL Workbench

Login to MySQL Container

podman exec -it mysql bash

List all the Containers

podman container ls -a

Stop MySQL Container

podman stop mysql

Delete the container**

podman rm mysql

Preserve the Data for future**

Inside container/mysql

mkdir data

podman run --name mysql -d \
    -p 3306:3306 \
    -e MYSQL_ROOT_PASSWORD=root-pwd \
    -e MYSQL_ROOT_HOST="%" \
    -e MYSQL_DATABASE=mydb \
    -e MYSQL_USER=remote_user \
    -e MYSQL_PASSWORD=remote_user-pwd \
    -v ./data:/var/lib/mysql \
    docker.io/library/mysql:8.4.4

-- Create database
CREATE DATABASE IF NOT EXISTS friends_tv_show;
USE friends_tv_show;

-- Create Characters table
CREATE TABLE characters (
    character_id INT AUTO_INCREMENT PRIMARY KEY,
    first_name VARCHAR(50) NOT NULL,
    last_name VARCHAR(50) NOT NULL,
    actor_name VARCHAR(100) NOT NULL,
    date_of_birth DATE,
    occupation VARCHAR(100),
    apartment_number VARCHAR(10)
);

INSERT INTO characters (first_name, last_name, actor_name, date_of_birth, occupation, apartment_number) VALUES
('Ross', 'Geller', 'David Schwimmer', '1967-10-02', 'Paleontologist', '3B'),
('Rachel', 'Green', 'Jennifer Aniston', '1969-02-11', 'Fashion Executive', '20'),
('Chandler', 'Bing', 'Matthew Perry', '1969-08-19', 'IT Procurement Manager', '19'),
('Monica', 'Geller', 'Courteney Cox', '1964-06-15', 'Chef', '20'),
('Joey', 'Tribbiani', 'Matt LeBlanc', '1967-07-25', 'Actor', '19'),
('Phoebe', 'Buffay', 'Lisa Kudrow', '1963-07-30', 'Massage Therapist/Musician', NULL);

select * from characters;

Build your own Image


mkdir -p container
cd container

Python Example

Follow the README.md

Fork & Clone

git clone https://github.com/gchandra10/docker_mycalc_demo.git

Web App Demo

Fork & Clone

git clone https://github.com/gchandra10/docker_webapp_demo.git

Publish Image to Docker Hub

Login to Docker Hub

  • Create a Repository “my_faker_calc”
  • Under Account Settings
    • Personal Access Token
    • Create a PAT token with Read/Write access for 1 day

Replace gchandra10 with yours.

podman login docker.io 

enter userid
enter PAT token

Then build the Image with your userid

podman build -t gchandra10/my_faker_calc:1.0  .
podman image ls

Copy the ImageID of gchandra10/my_fake_calc:1.0

Tag the ImageID with necessary version and latest

podman image tag <image_id> gchandra10/my_faker_calc:latest

Push the Images to Docker Hub (version and latest)

podman push gchandra10/my_faker_calc:1.0 
podman push gchandra10/my_faker_calc:latest

Image Security

Open Source tool Trivy

https://trivy.dev/latest/getting-started/installation/

trivy image python:3.9-slim

trivy image gchandra10/my_faker_calc

trivy image gchandra10/my_faker_calc --severity CRITICAL,HIGH --format table

trivy image gchandra10/my_faker_calc --severity CRITICAL,HIGH  --output result.txt

````<span id='footer-class'>Ver 5.5.3</span>
<footer id="last-change">Last change: 2025-10-15</footer>````