Build a Containerized Web Application on Azure

In this blog, I am going to setup MySQL server in one container and apache2 in other container and If you are not familiar with Docker, read my this blog first(Click here to read the blog). Moreover, this all will be done on Azure virtual machine, If you are not familiar with Azure virtual machine, please read my this blog first to create the virtual machine on Azure(Click here to read the blog).

Setting Up Docker

To install Docker, use the following command:

sudo apt install docker.io

To start docker, command is given below:

sudo systemctl start docker

To start docker, when you start the ubuntu use this command:

sudo systemctl enable docker

To view current images, use the following command:

sudo docker images

To pull images, use the following command:

sudo docker pull ubuntu

Creating MySQL Container

We have already downloaded the ubuntu images. Now using this ubuntu image we will create the container and named it mysql-container. Because we are going to install MySQL database in it.

sudo docker run --name mysql-container -it ubuntu

Now you are in mysql-container, execute the following comand to set the environment and install the vim for editing.

apt update
apt install vim -y
exit

If you want to see which container in running on your host machine use this command:

sudo docker ps -a

If you want to check consistently use this command:

watch 'sudo docker ps -a'

Now in Host machine open the terminal and start the mysql-container.

sudo docker start mysql-container

To get bash shell of mysql-container, command is given below.

sudo docker exec -it mysql-container bash

Now in mysql-container install the mysql-server and start the mysql service.

apt install mysql-server -y
service mysql start

Now in mysql create root user protected with password. Now your database is secured.

mysql
ALTER USER 'root'@'localhost' IDENTIFIED WITH
mysql_native_password BY 'root123!';
FLUSH PRIVILEGES;
\q

Now if you start mysql it will ask for password.

mysql -uroot -p

Then enter password. Don’t enter password on command line for security reasons.

Creating Apache Container

To create the apache-container, we use the same image as used in mysql-container.

sudo docker run --name apache-container -it ubuntu

Now container is created and now come in Host machine open the terminal and start the apache-container.

sudo docker start apache-container

Now apache container is running now execute following command on container to get the bash terminal.

sudo docker exec -it apache-container bash

Now you are in apache container, first thing is to update and then install the apache2.

apt update
apt install apache2

After installing the apache2 service start the service with the following command:

service apache2 start

Install the important editor and the important libraries to make a connection with php and mysql.

apt install vim -y
apt install php libapache2-mod-php php-cli php-mysql -y

Now install network tools, with the following command:

apt install inetutils-ping net-tools -y
ifconfig

To check Active internet connection and ports.

netstat -nutlp

To add files on your site.

vi /var/www/html/index.php

When you update some thing in code you need to restart the apache2, to get the effects of changes.

service apache2 restart

That’s for now in next blog, I am going to setup a connection between these two containers.