Deploying applications can often feel like a complex task, especially when you have to manage server configurations, scaling, and infrastructure. Jelastic, now part of the Virtuozzo Application Platform, offers a powerful solution through its multi-cloud Platform-as-a-Service (PaaS). It is designed to help developers deploy, manage, and scale applications without the headache of manual server administration. This guide will walk you through what the platform offers and how you can get started with your first deployment.
Understanding Jelastic Multi-Cloud PaaS
Jelastic is a unique cloud hosting platform that bridges the gap between Infrastructure-as-a-Service (IaaS) and Platform-as-a-Service (PaaS). It allows developers to create environments for their applications using a wide variety of programming languages, including Java, PHP, Node.js, Python, Ruby, and Go. Unlike traditional hosting, it provides a user-friendly dashboard where you can visually assemble your application stack.
One of the standout features of this platform is its multi-cloud availability. Instead of being locked into a single provider, the software is distributed across many different hosting service providers worldwide. This allows you to choose a data center location that is closest to your users, improving performance and meeting local data sovereignty requirements.
Key Benefits of Using the Platform
Before diving into the technical steps, it is helpful to understand why many developers prefer this environment over standard virtual private servers (VPS). The platform is built around efficiency and automation, which can save both time and money.
- Automatic Vertical Scaling: Most cloud providers require you to manually resize your server when traffic increases. Jelastic automatically adjusts the amount of resources (RAM and CPU) allocated to your application in real-time based on actual demand.
- Pay-as-You-Use Pricing: Because the platform scales vertically, you only pay for the resources your application actually consumes, rather than paying for a large server that sits idle most of the time.
- One-Click Installations: The platform features a marketplace with hundreds of pre-configured applications, such as WordPress, Magento, and Docker clusters, which can be deployed with a single click.
- High Availability: You can easily configure your environment for high availability by adding multiple nodes and load balancers, ensuring your application remains online even if one server fails.
How to Get Started with Your First Environment
Setting up an environment is a straightforward process that takes place entirely within a web-based dashboard. Follow these steps to prepare your hosting space.
1. Access the Dashboard
Once you have an account with a service provider that supports the platform, log in to your dashboard. You will see a clean interface where you can manage all your instances, databases, and settings.
2. Create a New Environment
Click on the “New Environment” button at the top left of the dashboard. This will open the topology wizard. Here, you can select the programming language your application uses. For example, if you are a Java developer, you would select the Java tab.
3. Configure Your Topology
In the wizard, you can choose your application server (such as Tomcat, GlassFish, or WildFly), your database (such as MySQL, PostgreSQL, or MongoDB), and any additional components like caching servers or load balancers. You can also set the “Scaling Limit” for each node, which defines the maximum amount of resources the node can consume.
4. Choose a Region and Name
Select the geographic region where you want your application hosted. Finally, give your environment a unique name and click “Create.” Within a few minutes, your entire infrastructure will be provisioned and ready for use.
Deploying Your Application Code
Once your environment is running, you need to upload your code. The platform provides several ways to do this, depending on your workflow and technical preferences.
Deployment via Archive
If you have a compiled application file, such as a .WAR file for Java or a .ZIP file for PHP, you can upload it directly. Go to the “Deployment Manager” at the bottom of the dashboard, upload your file, and then select the environment where you want it deployed. The platform will automatically unpack the file and restart the server if necessary.
Deployment via Git or SVN
For a more modern workflow, you can connect your environment directly to a version control system like GitHub or Bitbucket. By providing the repository URL and credentials, the platform can pull your code directly. You can even set up automatic updates so that every time you push code to your repository, the platform automatically redeploys the application.
Managing Databases and Storage
Most applications require a database to store user information and content. The platform makes database management simple by providing built-in administration tools. When you add a database node to your environment, the system automatically sends you an email with the login credentials and a link to a web-based management tool like phpMyAdmin or phppgAdmin.
You can also manage your file system directly through the dashboard. Each node has a “Config” button that allows you to edit configuration files, upload assets, and manage logs without needing to use an external FTP client. This centralized management makes it much easier to troubleshoot issues or update settings on the fly.
Understanding the Cost Model: Cloudlets
To use the platform effectively, you should understand the concept of a “Cloudlet.” A Cloudlet is a small unit of resource measurement, typically equal to 128 MB of RAM and 200 MHz of CPU power. When you set your scaling limits, you are choosing how many Cloudlets the system is allowed to give your application.
There are two types of Cloudlets: Reserved Cloudlets and Dynamic Cloudlets. Reserved Cloudlets are resources you commit to using, which often come at a discounted price. Dynamic Cloudlets are added and removed automatically based on your application’s load. By balancing these two, you can ensure your application always has enough power while keeping your costs as low as possible.
Conclusion
Jelastic provides a robust and flexible environment for developers who want to focus on writing code rather than managing infrastructure. With its automatic scaling, multi-cloud options, and support for various programming languages, it is an excellent choice for everything from small personal projects to large-scale enterprise applications. By following the steps outlined above, you can have your application up and running in a highly optimized environment in just a few minutes.
If you are looking for more ways to optimize your online presence or technical setup, be sure to explore our other guides on web hosting, database management, and cloud computing strategies.