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basic connectivity graph from netbox

master
Serge Bazanski 2018-10-06 12:13:57 +01:00
parent 2c6c6d16b9
commit 9c5eac6e8c
1 changed files with 55 additions and 2 deletions
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57
graph/graph.go
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@ -4,9 +4,9 @@ import (
"context"
"fmt"
"github.com/davecgh/go-spew/spew"
"github.com/digitalocean/go-netbox/netbox/client"
"github.com/digitalocean/go-netbox/netbox/client/dcim"
"github.com/digitalocean/go-netbox/netbox/models"
"github.com/golang/glog"
confpb "code.hackerspace.pl/q3k/topo/proto/config"
@ -137,6 +137,22 @@ func (g *Graph) LoadConfig(conf *confpb.Config) error {
}
func (g *Graph) FeedFromNetbox(ctx context.Context, nb *client.NetBox) error {
// Clear all connections first, because it's easier that way.
for _, machine := range g.Machines {
for _, port := range machine.Ports {
port.OtherEnd = nil
}
}
for _, sw := range g.Switches {
for _, port := range sw.Ports {
port.OtherEnd = nil
}
}
// Load new connections.
// Iterating over just machines should be fine if all connections are
// guaranteed to be between machines and switches (which is the model for
// now).
for _, machine := range g.Machines {
req := &dcim.DcimInterfaceConnectionsListParams{
Device: &machine.Name,
@ -147,7 +163,44 @@ func (g *Graph) FeedFromNetbox(ctx context.Context, nb *client.NetBox) error {
return fmt.Errorf("while querying information about %q: %v", machine.Name, err)
}
for _, connection := range res.Payload.Results {
glog.Info(spew.Sdump(connection))
ia := connection.InterfaceA
ib := connection.InterfaceB
if ia == nil || ib == nil {
continue
}
// Find which way this thing actually connects.
var thisSide, otherSide *models.PeerInterface
if ia.Device.Name == machine.Name {
thisSide = ia
otherSide = ib
} else if ib.Device.Name == machine.Name {
thisSide = ib
otherSide = ia
} else {
glog.Warning("Netbox connectivity for %q reported a link without it involced..?", machine.Name)
continue
}
thisPort, ok := machine.Ports[*thisSide.Name]
if !ok {
continue
}
sw, ok := g.Switches[otherSide.Device.Name]
if !ok {
glog.Warningf("Machine %q port %q is managed but connected to unknown device %q", machine.Name, thisPort.Name, otherSide.Device.Name)
continue
}
otherPort, ok := sw.Ports[*otherSide.Name]
if !ok {
glog.Warningf("Machine %q port %q is managed but connected to unmanaged port %q on %q", machine.Name, thisPort.Name, otherSide.Name, sw.Name)
continue
}
// Connect the two together!
thisPort.OtherEnd = otherPort
otherPort.OtherEnd = thisPort
glog.Infof("Connected: %s/%s <-> %s/%s", machine.Name, thisPort.Name, sw.Name, otherPort.Name)
}
}
return nil