V (Vlang) application runtime
Overview
V is a very simple modern language, similar to Go. It’s a statically typed compiled programming language designed for building maintainable software. Its design has also been influenced by Oberon, Rust, Swift, Kotlin, and Python. One of its forces is it comes with a strong standard library, built-in modules and a package manager. Thus, it includes a web server easy to use in V applications : Veb.
V (Vlang) is a new runtime. Help us to improve it by reporting any issue or suggestion on the Clever Cloud Community
Create your V (Vlang) application
To create a new V (Vlang) application, use the Clever Cloud Console or Clever Tools:
clever create --type vConfigure your V (Vlang) application
Mandatory needs
V (Vlang) runtime only requires a working application listening on 0.0.0.0:8080.
Build phase
During the build phase, the V (Vlang) application is built with the v . -prod command. To compile without the -prod flag, set ENVIRONMENT=development. You can choose a custom output binary name with the CC_V_BINARY environment variable, default is ${APP_HOME}/v_bin_${APP_ID}.
V (Vlang) version and tools
The currently deployed version of V (Vlang) on Clever Cloud is 0.4.11.
V scripts (.vsh), Clever Tasks
V (Vlang) can be used to execute shell scripts (.vsh). On Clever Cloud, to run such workloads as Clever Tasks, configure an application as Tasks from the Information panel in the Console or with Clever Tools:
clever create --type v --task "./your-script.vsh --and arguments"
clever deploy # or clever restart if there is no code changeUse Redirection.io as a proxy
Redirection.io can help reduce HTTP traffic issues on your website. It gives a complete control on how HTTP requests are handled, which helps make it SEO-friendly. It can perform redirections and comes with lots of features. You can link any application to a Redirection.io project easily, setting up the proxy mode with following environment variables:
| Name | Description | Default value |
|---|---|---|
CC_ENABLE_REDIRECTIONIO | Enable Redirection.io support | false |
CC_REDIRECTIONIO_PROJECT_KEY | The Redirection.io project key | |
CC_REDIRECTIONIO_FORWARD_PORT | The listening port of your application | |
CC_REDIRECTIONIO_INSTANCE_NAME | The name of your application (optional) |
The Redirection.io agent will start as a service, listen to 8080 port and forward the traffic to your application port.
Use Varnish as cache
Varnish is a powerful HTTP accelerator that can be used to cache your web application’s responses, improving performance and reducing load. To use it, create a Varnish configuration file in clevercloud/varnish.vcl and configure your application to listen on port 8081.
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