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package cluster
import (
"io/fs"
"git.jpi.io/amery/jpictl/pkg/rings"
)
var (
_ MachineIterator = (*Zone)(nil)
)
// A ZoneIterator is a set of Zones we can iterate on
type ZoneIterator interface {
ForEachZone(func(*Zone) bool)
}
// A Zone is a set of machines in close proximity and strong
// affinity.
type Zone struct {
zones *Cluster
region *Region
logger `json:"-" yaml:"-"`
ID rings.ZoneID
Name string
Regions []string `json:",omitempty" yaml:",omitempty"`
Machines
}
func (z *Zone) String() string {
return z.Name
}
// SetGateway configures a machine to be the zone's ring0 gateway
func (z *Zone) SetGateway(gatewayID rings.NodeID, enabled bool) error {
var err error
var found bool
z.ForEachMachine(func(p *Machine) bool {
if p.ID == gatewayID {
found = true
err = p.SetGateway(enabled)
return true
}
return false
})
switch {
case err != nil:
return err
case !found:
return fs.ErrNotExist
default:
return nil
}
}
// GatewayIDs returns the list of IDs of machines that act as ring0 gateways
func (z *Zone) GatewayIDs() ([]rings.NodeID, int) {
var out []rings.NodeID
z.ForEachMachine(func(p *Machine) bool {
if p.IsGateway() {
out = append(out, p.ID)
}
return false
})
return out, len(out)
}