clustvirt/cluster/cluster.go

// Package cluster is the unique portion of this application that implements
// basic cluster controls overtop of Libvirtd hosts. The controller is agnostic
// about where it is running, and doesn't need to be running on a host that
// has Libvirtd installed on it.
//
// The cluster can be configured through the use of TOML configuration file,
// or with CLI flags. This is done via the itegration of the greate go libraries
// spf13/viper and spf13/cobra.
package cluster

import (
	"fmt"
	"time"

	"git.staur.ca/stobbsm/clustvirt/lib/host"
)

// Cluster is the data structure and controller for cluster access.
// Using it's methods, you can access hosts, virtual machines, health
// data, and more.
// Cluster implements a time.Ticker that will be used to check the connection
// status of hosts, and reconnect if a connection was blocked or interrupted.
type Cluster struct {
	interval   time.Duration
	hosts      map[string]*host.Host
	defaultURI *host.URI
}

func (c *Cluster) GetHost(h string) (*host.Host, error) {
	if hh, ok := c.hosts[h]; ok {
		return hh, nil
	}
	return nil, fmt.Errorf("%s: %w", h, ErrHostNotFound)
}