Creating Services

Services allow communication between your applications in your cluster.

You are browsing the latest version for the release v0.0.3.

In Kubernetes, a Service is an abstraction which defines a logical set of Pods and a policy by which to access them. A service allows communication between pods in your cluster.

The example below creates a MySQL deployment along with a service to access it.

Deployment::create('mysql')
    ->setContainerPort(3306)
    ->setContainerImage('mysql')
    ->setEnvironmentVariable(new EnvironmentVariable('MYSQL_ROOT_PASSWORD', fromEnvironmentVariableName: 'DB_PASSWORD'))
    ->setEnvironmentVariable(new EnvironmentVariable('MYSQL_DATABASE', fromEnvironmentVariableName: 'DB_DATABASE'))
    ->setEnvironmentVariable(new EnvironmentVariable('MYSQL_USER', fromEnvironmentVariableName: 'DB_USERNAME'))
    ->setEnvironmentVariable(new EnvironmentVariable('MYSQL_PASSWORD', fromEnvironmentVariableName: 'DB_PASSWORD'));

Service::create('mysql')
    ->setTargetPort(3306)
    ->setServicePort(3306);

Networking

Set Target Port

The target port is for forwarding traffic, traffic will be forwarded onto the container specified in your Deployment.

Service::create('mysql')->setTargetPort(3306);

Set Service Port

The service port is for receiving traffic, an example would be from your Laravel application.

Service::create('mysql')->setServicePort(3306);

Load Balancer

You can create a service to act as a load balancer, calling this method will create a load balancer on the Cloud provider you use or update it if needed.

Load Balancers can take a while to provision so you may want to check the status by logging into your provider.

Service::create('laravel')->loadBalancer();

Environment

Set Namespace

You may want to explicitly set the namespace for your service in Kubernetes, you can achieve this with the following method.

Service::create('mysql')->setNamespace('production');

The default namespace is "default".