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cmd/kg,pkg: add --resync-period flag

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This commit introduces a new `--resync-period` flag to control how often
the Kilo controllers should reconcile.

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
This commit is contained in:
Lucas Servén Marín
2021-02-28 18:33:01 +01:00
parent c060bf24e2
commit 8dbbc636b5
8 changed files with 58 additions and 68 deletions
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14
pkg/mesh/mesh.go
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@@ -65,6 +65,7 @@ type Mesh struct {
priv []byte
privIface int
pub []byte
resyncPeriod time.Duration
stop chan struct{}
subnet *net.IPNet
table *route.Table
@@ -85,7 +86,7 @@ type Mesh struct {
}
// New returns a new Mesh instance.
func New(backend Backend, enc encapsulation.Encapsulator, granularity Granularity, hostname string, port uint32, subnet *net.IPNet, local, cni bool, cniPath, iface string, cleanUpIface bool, createIface bool, logger log.Logger) (*Mesh, error) {
func New(backend Backend, enc encapsulation.Encapsulator, granularity Granularity, hostname string, port uint32, subnet *net.IPNet, local, cni bool, cniPath, iface string, cleanUpIface bool, createIface bool, resyncPeriod time.Duration, logger log.Logger) (*Mesh, error) {
if err := os.MkdirAll(kiloPath, 0700); err != nil {
return nil, fmt.Errorf("failed to create directory to store configuration: %v", err)
}
@@ -143,7 +144,7 @@ func New(backend Backend, enc encapsulation.Encapsulator, granularity Granularit
level.Debug(logger).Log("msg", "running without a private IP address")
}
level.Debug(logger).Log("msg", fmt.Sprintf("using %s as the public IP address", publicIP.String()))
ipTables, err := iptables.New(iptables.WithLogger(log.With(logger, "component", "iptables")))
ipTables, err := iptables.New(iptables.WithLogger(log.With(logger, "component", "iptables")), iptables.WithResyncPeriod(resyncPeriod))
if err != nil {
return nil, fmt.Errorf("failed to IP tables controller: %v", err)
}
@@ -234,7 +235,8 @@ func (m *Mesh) Run() error {
}
}()
defer m.cleanUp()
t := time.NewTimer(resyncPeriod)
resync := time.NewTimer(m.resyncPeriod)
checkIn := time.NewTimer(checkInPeriod)
nw := m.Nodes().Watch()
pw := m.Peers().Watch()
var ne *NodeEvent
@@ -245,13 +247,15 @@ func (m *Mesh) Run() error {
m.syncNodes(ne)
case pe = <-pw:
m.syncPeers(pe)
case <-t.C:
case <-checkIn.C:
m.checkIn()
checkIn.Reset(checkInPeriod)
case <-resync.C:
if m.cni {
m.updateCNIConfig()
}
m.applyTopology()
t.Reset(resyncPeriod)
resync.Reset(m.resyncPeriod)
case <-m.stop:
return nil
}