LAPP
- Apache
- PHP
- Linux
- Web-Framework
About
LAPP is a Web development platform that uses Linux as the operating system, Apache as the Web server, PostgreSQL as the relational database management system and PHP, Python and Perl as the object-oriented scripting language. Stacks can be built on different operating systems.
Niles partners is launching a product which will configure a tool called as LAPP to a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering) and graphical techniques which is embedded pre-configured tool ready-to-launch AMI on Azure Virtual Machine containing PHP, Python, Perl.
A “LAPP” stack is a group of software that is typically installed together to enable a server to host dynamic websites and web apps.
This term is actually an acronym which represents the Linux operating system, with the Apache web server. The site data is stored in a PostgreSQL database, and dynamic content is processed by PHP, Python and Perl.
Before going into deep, we must know all its components and have some knowledge about it briefly.
They are as follows:
Software components
Linux- Linux is the lowest-level layer and provides the operating system. Linux actually runs each of the other components. You are not specifically limited to Linux, however; you can easily run each of the other components on Microsoft®; Windows®; Mac OS X, or UNIX® if you need to.
Apache- The next layer is Apache, the Web server. Apache provides the mechanics for getting a Web page to a user. Apache is a stable, mission-critical-capable server, and it runs more than 65 percent of all Web sites on the Internet. The PHP component actually sits inside Apache, and you use Apache and PHP together to create your dynamic pages.
PostgreSQL and alternatives- PostgreSQL provides the data-storage side of the LAPP system. With PostgreSQL, you have access to a very capable database suitable for running large and complex sites. Within your Web application, all your data, products, accounts, and other types of information will reside in this database in a format that you can easily query with the SQL language.
PHP and alternatives- Here, we would focus on Lamp with Php and have a brief understanding about what actually it is specially when it works with Php.
PHP’s role as the LAPP’s application programming language has also been performed by other languages such as Perl and Python. PHP is a server-side scripting language designed for web development but also used as a general purpose programming language. PHP code is interpreted by a web server via a PHP processor module, which generates the resulting web page. The commands can optionally be embedded directly into an HTML source document rather than calling an external file to process data. It has also evolved to include a command-line interface capability and can be used in standalone graphical applications.
Features
Maximizes e-commerce revenues
Minimizes e-business disruption caused by IT outages
Automated availability monitoring
Failover recovery
- Type virtual machines in the search.
- Under Services, select Virtual machines.
- In the Virtual machines page, select Add. The Create a virtual machine page opens.
- In the Basics tab, under Project details, make sure the correct subscription is selected and then choose to Create new resource group. Type myResourceGroup for the name.*.
- Under Instance details, type myVM for the Virtual machine name, choose East US for your Region, and choose Ubuntu 18.04 LTS for your Image. Leave the other defaults.
- Under Administrator account, select SSH public key, type your user name, then paste in your public key. Remove any leading or trailing white space in your public key.
- Under Inbound port rules > Public inbound ports, choose Allow selected ports and then select SSH (22) and HTTP (80) from the drop-down.
- Leave the remaining defaults and then select the Review + create button at the bottom of the page.
- On the Create a virtual machine page, you can see the details about the VM you are about to create. When you are ready, select Create.
It will take a few minutes for your VM to be deployed. When the deployment is finished, move on to the next section.
Connect to virtual machine
Create an SSH connection with the VM.
- Select the Connect button on the overview page for your VM.
- In the Connect to virtual machine page, keep the default options to connect by IP address over port 22. In Login using VM local account a connection command is shown. Select the button to copy the command. The following example shows what the SSH connection command looks like:
bashCopy
ssh azureuser@10.111.12.123
- Using the same bash shell you used to create your SSH key pair (you can reopen the Cloud Shell by selecting >_ again or going to https://shell.azure.com/bash), paste the SSH connection command into the shell to create an SSH session.
Usage/Deployment Instruction:
Step 1: Access LAPP in Azure Marketplace and click on get it now button.
Click on Get it now and then on Continue
Now click on Create;
Step 2:Now to create a virtual machine, enter or select appropriate values for zone, machine type, resource group and so on as per your choice.
Click on Review + create à Create
Step 3: Use the browser to access the application at http://<instance ip address>.
You will your server ip, as shown below,
Note: Replace instance ip address with the actual IP address of the running instance, your installation dialogue will appear.
Apache Installation default Page
Php with latest version installation Page
Step 2: SSH using root user is disabled.
sudo -i -u postgres
psql
PostgreSQL can be accessed only with SSH
PostgreSQL User : root
Password : Niles@123
Note : You are not supposed to change it.
To exit, from PostgreSQL
Use – q
Enjoy your Application.
- (510) 298-5936
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Until now, small developers did not have the capital to acquire massive compute resources and ensure they had the capacity they needed to handle unexpected spikes in load. Amazon EC2 enables any developer to leverage Amazon’s own benefits of massive scale with no up-front investment or performance compromises. Developers are now free to innovate knowing that no matter how successful their businesses become, it will be inexpensive and simple to ensure they have the compute capacity they need to meet their business requirements.
The “Elastic” nature of the service allows developers to instantly scale to meet spikes in traffic or demand. When computing requirements unexpectedly change (up or down), Amazon EC2 can instantly respond, meaning that developers have the ability to control how many resources are in use at any given point in time. In contrast, traditional hosting services generally provide a fixed number of resources for a fixed amount of time, meaning that users have a limited ability to easily respond when their usage is rapidly changing, unpredictable, or is known to experience large peaks at various intervals.
Traditional hosting services generally provide a pre-configured resource for a fixed amount of time and at a predetermined cost. Amazon EC2 differs fundamentally in the flexibility, control and significant cost savings it offers developers, allowing them to treat Amazon EC2 as their own personal data center with the benefit of Amazon.com’s robust infrastructure.
When computing requirements unexpectedly change (up or down), Amazon EC2 can instantly respond, meaning that developers have the ability to control how many resources are in use at any given point in time. In contrast, traditional hosting services generally provide a fixed number of resources for a fixed amount of time, meaning that users have a limited ability to easily respond when their usage is rapidly changing, unpredictable, or is known to experience large peaks at various intervals.
Secondly, many hosting services don’t provide full control over the compute resources being provided. Using Amazon EC2, developers can choose not only to initiate or shut down instances at any time, they can completely customize the configuration of their instances to suit their needs – and change it at any time. Most hosting services cater more towards groups of users with similar system requirements, and so offer limited ability to change these.
Finally, with Amazon EC2 developers enjoy the benefit of paying only for their actual resource consumption – and at very low rates. Most hosting services require users to pay a fixed, up-front fee irrespective of their actual computing power used, and so users risk overbuying resources to compensate for the inability to quickly scale up resources within a short time frame.
No. You do not need an Elastic IP address for all your instances. By default, every instance comes with a private IP address and an internet routable public IP address. The private address is associated exclusively with the instance and is only returned to Amazon EC2 when the instance is stopped or terminated. The public address is associated exclusively with the instance until it is stopped, terminated or replaced with an Elastic IP address. These IP addresses should be adequate for many applications where you do not need a long lived internet routable end point. Compute clusters, web crawling, and backend services are all examples of applications that typically do not require Elastic IP addresses.
You have complete control over the visibility of your systems. The Amazon EC2 security systems allow you to place your running instances into arbitrary groups of your choice. Using the web services interface, you can then specify which groups may communicate with which other groups, and also which IP subnets on the Internet may talk to which groups. This allows you to control access to your instances in our highly dynamic environment. Of course, you should also secure your instance as you would any other server.
Highlights
- Optimized for web-specific jobs with more efficient use of computing resources
- As a solution stack, LAPP is suitable for building dynamic web sites and web applications.
- Complete Framework to run applications written in PHP, Perl or Python
Application Installed
