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Nodes without private IPs

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Allow nodes to have no private IPs.
Nodes without private IPs will automatically be put into
their own location.
This commit is contained in:
leonnicolas
2021-01-24 14:19:01 +01:00
parent 92825ba0c7
commit 3a201ba0fa
11 changed files with 519 additions and 50 deletions
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26
pkg/mesh/mesh.go
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@@ -71,7 +71,7 @@ type Mesh struct {
wireGuardIP *net.IPNet
// nodes and peers are mutable fields in the struct
// and needs to be guarded.
// and need to be guarded.
nodes map[string]*Node
peers map[string]*Peer
mu sync.Mutex
@@ -125,17 +125,23 @@ func New(backend Backend, enc encapsulation.Encapsulator, granularity Granularit
if err != nil {
return nil, fmt.Errorf("failed to find public IP: %v", err)
}
ifaces, err := interfacesForIP(privateIP)
if err != nil {
return nil, fmt.Errorf("failed to find interface for private IP: %v", err)
}
privIface := ifaces[0].Index
if enc.Strategy() != encapsulation.Never {
if err := enc.Init(privIface); err != nil {
return nil, fmt.Errorf("failed to initialize encapsulator: %v", err)
var privIface int
if privateIP != nil {
ifaces, err := interfacesForIP(privateIP)
if err != nil {
return nil, fmt.Errorf("failed to find interface for private IP: %v", err)
}
privIface := ifaces[0].Index
if enc.Strategy() != encapsulation.Never {
if err := enc.Init(privIface); err != nil {
return nil, fmt.Errorf("failed to initialize encapsulator: %v", err)
}
}
level.Debug(logger).Log("msg", fmt.Sprintf("using %s as the private IP address", privateIP.String()))
} else {
enc = encapsulation.Noop(enc.Strategy())
level.Debug(logger).Log("msg", "running without a private IP address")
}
level.Debug(logger).Log("msg", fmt.Sprintf("using %s as the private IP address", privateIP.String()))
level.Debug(logger).Log("msg", fmt.Sprintf("using %s as the public IP address", publicIP.String()))
ipTables, err := iptables.New()
if err != nil {