Application Runtimes ​
Application Runtimes is where you install the Node.js, Python, and Ruby versions that customers can run applications on. An account can only pick a version this page has installed.
Overview ​
URL: /admin/settings/runtime-manager-versions
The page sits under Settings > CloudLinux as Application Runtimes.
The header counts what the repositories offer against what this server has:
| Figure | Meaning |
|---|---|
| Total | Every version the repositories offer. |
| Installed | Versions on this server. |
| Available | Versions not installed yet. |
| Runtimes | How many languages are covered. |
Check for new versions re-reads the repositories. Install all installs every offered version, and each language has its own Install all as well.
Installing a version ​
Each row names the version, whether it is installed, where it comes from, and the package behind it. Install adds it; Uninstall removes it.
Install what your customers actually ask for rather than everything. Each version is a package on the server, and a version nobody uses is still one more thing to keep updated.
The web server matters ​
Applications run on Apache and on OpenLiteSpeed. The panel decides by what is actually serving the site.
Under LiteSpeed Enterprise, the page says plainly that applications cannot be served: LiteSpeed Enterprise runs as an Apache drop-in and serves PHP sites from the same configuration, but the application directives are inert under it, so an application would answer with a directory listing instead of starting. Switching the web server to Apache or OpenLiteSpeed is what makes applications work.
Installing versions still works under LiteSpeed Enterprise. They are the interpreters the version selectors offer, and they will be there when the web server changes.
What the server reports ​
The page reports what is running, and says so when the application server is missing rather than implying everything is in place. On CloudLinux servers, the CloudLinux builds are preferred when no runtime version has been chosen.
Related pages ​
- Client Applications - where customers create and run applications.
- Module Manager - the modules the application stack depends on.
- PHP Versions - the equivalent for PHP, which is managed separately.