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use table id instead of table name for custom routing tables (#215)

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Murali Reddy 2017-11-08 07:35:47 +05:30 committed by GitHub
parent 5783c30f33
commit 28c5dd20ef
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 12 additions and 10 deletions
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20
app/controllers/network_routes_controller.go
View File

@ -69,7 +69,7 @@ var (
) )
const ( const (
customRouteTableID = 77 customRouteTableID = "77"
customRouteTableName = "kube-router" customRouteTableName = "kube-router"
podSubnetsIPSetName = "kube-router-pod-subnets" podSubnetsIPSetName = "kube-router-pod-subnets"
nodeAddrsIPSetName = "kube-router-node-ips" nodeAddrsIPSetName = "kube-router-node-ips"
@ -734,14 +734,14 @@ func (nrc *NetworkRoutingController) injectRoute(path *table.Path) error {
glog.Infof("Tunnel interface: " + tunnelName + " for the node " + nexthop.String() + " already exists.") glog.Infof("Tunnel interface: " + tunnelName + " for the node " + nexthop.String() + " already exists.")
} }
out, err := exec.Command("ip", "route", "list", "table", customRouteTableName).Output() out, err := exec.Command("ip", "route", "list", "table", customRouteTableID).Output()
if err != nil { if err != nil {
return fmt.Errorf("Failed to verify if route already exists in %s table: %s", return fmt.Errorf("Failed to verify if route already exists in %s table: %s",
customRouteTableName, err.Error()) customRouteTableName, err.Error())
} }
if !strings.Contains(string(out), tunnelName) { if !strings.Contains(string(out), tunnelName) {
if err = exec.Command("ip", "route", "add", nexthop.String(), "dev", tunnelName, "table", if err = exec.Command("ip", "route", "add", nexthop.String(), "dev", tunnelName, "table",
customRouteTableName).Run(); err != nil { customRouteTableID).Run(); err != nil {
return errors.New("Failed to add route in custom route table due to: " + err.Error()) return errors.New("Failed to add route in custom route table due to: " + err.Error())
} }
} }
@ -1044,7 +1044,7 @@ func (nrc *NetworkRoutingController) enablePolicyBasedRouting() error {
} }
if !strings.Contains(string(out), cidr) { if !strings.Contains(string(out), cidr) {
err = exec.Command("ip", "rule", "add", "from", cidr, "table", customRouteTableName).Run() err = exec.Command("ip", "rule", "add", "from", cidr, "lookup", customRouteTableID).Run()
if err != nil { if err != nil {
return fmt.Errorf("Failed to add ip rule due to: %s", err.Error()) return fmt.Errorf("Failed to add ip rule due to: %s", err.Error())
} }
@ -1072,7 +1072,7 @@ func (nrc *NetworkRoutingController) disablePolicyBasedRouting() error {
} }
if strings.Contains(string(out), cidr) { if strings.Contains(string(out), cidr) {
err = exec.Command("ip", "rule", "del", "from", cidr, "table", customRouteTableName).Run() err = exec.Command("ip", "rule", "del", "from", cidr, "table", customRouteTableID).Run()
if err != nil { if err != nil {
return fmt.Errorf("Failed to delete ip rule: %s", err.Error()) return fmt.Errorf("Failed to delete ip rule: %s", err.Error())
} }
@ -1081,20 +1081,20 @@ func (nrc *NetworkRoutingController) disablePolicyBasedRouting() error {
return nil return nil
} }
func rtTablesAdd(num uint, s string) error { func rtTablesAdd(tableNumber, tableName string) error {
b, err := ioutil.ReadFile("/etc/iproute2/rt_tables") b, err := ioutil.ReadFile("/etc/iproute2/rt_tables")
if err != nil { if err != nil {
return fmt.Errorf("Failed to read: %s", err.Error()) return fmt.Errorf("Failed to read: %s", err.Error())
} }
if !strings.Contains(string(b), s) { if !strings.Contains(string(b), tableName) {
f, err := os.OpenFile("/etc/iproute2/rt_tables", os.O_APPEND|os.O_WRONLY, 0600) f, err := os.OpenFile("/etc/iproute2/rt_tables", os.O_APPEND|os.O_WRONLY, 0600)
if err != nil { if err != nil {
return fmt.Errorf("Failed to open: %s", err.Error()) return fmt.Errorf("Failed to open: %s", err.Error())
} }
if _, err = f.WriteString(strconv.Itoa(int(num)) + " " + s); err != nil { defer f.Close()
return fmt.Errorf("Failed to write: %s", if _, err = f.WriteString(tableNumber + " " + tableName + "\n"); err != nil {
err.Error()) return fmt.Errorf("Failed to write: %s", err.Error())
} }
} }

2
app/controllers/network_services_controller.go
View File

@ -1279,6 +1279,7 @@ func setupPolicyRoutingForDSR() error {
if err != nil { if err != nil {
return errors.New("Failed to setup policy routing required for DSR due to " + err.Error()) return errors.New("Failed to setup policy routing required for DSR due to " + err.Error())
} }
defer f.Close()
if _, err = f.WriteString(customDSRRouteTableID + " " + customDSRRouteTableName + "\n"); err != nil { if _, err = f.WriteString(customDSRRouteTableID + " " + customDSRRouteTableName + "\n"); err != nil {
return errors.New("Failed to setup policy routing required for DSR due to " + err.Error()) return errors.New("Failed to setup policy routing required for DSR due to " + err.Error())
} }
@ -1313,6 +1314,7 @@ func setupRoutesForExternalIPForDSR(serviceInfoMap serviceInfoMap) error {
if err != nil { if err != nil {
return errors.New("Failed setup external ip routing table required for DSR due to " + err.Error()) return errors.New("Failed setup external ip routing table required for DSR due to " + err.Error())
} }
defer f.Close()
if _, err = f.WriteString(externalIPRouteTableId + " " + externalIPRouteTableName + "\n"); err != nil { if _, err = f.WriteString(externalIPRouteTableId + " " + externalIPRouteTableName + "\n"); err != nil {
return errors.New("Failed setup external ip routing table required for DSR due to " + err.Error()) return errors.New("Failed setup external ip routing table required for DSR due to " + err.Error())
} }