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ovn-nbctl.go
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ovn-nbctl.go
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package ovs
import (
"encoding/json"
"fmt"
"os"
"os/exec"
"regexp"
"strings"
"time"
netv1 "k8s.io/api/networking/v1"
"k8s.io/klog"
kubeovnv1 "github.com/kubeovn/kube-ovn/pkg/apis/kubeovn/v1"
"github.com/kubeovn/kube-ovn/pkg/util"
)
func (c Client) ovnNbCommand(cmdArgs ...string) (string, error) {
start := time.Now()
cmdArgs = append([]string{fmt.Sprintf("--timeout=%d", c.OvnTimeout), "--wait=sb"}, cmdArgs...)
raw, err := exec.Command(OvnNbCtl, cmdArgs...).CombinedOutput()
elapsed := float64((time.Since(start)) / time.Millisecond)
klog.V(4).Infof("command %s %s in %vms, output %q", OvnNbCtl, strings.Join(cmdArgs, " "), elapsed, raw)
method := ""
for _, arg := range cmdArgs {
if !strings.HasPrefix(arg, "--") {
method = arg
break
}
}
code := "0"
defer func() {
ovsClientRequestLatency.WithLabelValues("ovn-nb", method, code).Observe(elapsed)
}()
if err != nil {
code = "1"
klog.Warningf("ovn-nbctl command error: %s %s in %vms", OvnNbCtl, strings.Join(cmdArgs, " "), elapsed)
return "", fmt.Errorf("%s, %q", raw, err)
} else if elapsed > 500 {
klog.Warningf("ovn-nbctl command took too long: %s %s in %vms", OvnNbCtl, strings.Join(cmdArgs, " "), elapsed)
}
return trimCommandOutput(raw), nil
}
func (c Client) SetAzName(azName string) error {
if _, err := c.ovnNbCommand("set", "NB_Global", ".", fmt.Sprintf("name=%s", azName)); err != nil {
return fmt.Errorf("failed to set az name, %v", err)
}
return nil
}
func (c Client) SetICAutoRoute(enable bool, blackList []string) error {
if enable {
if _, err := c.ovnNbCommand("set", "NB_Global", ".", "options:ic-route-adv=true", "options:ic-route-learn=true", fmt.Sprintf("options:ic-route-blacklist=%s", strings.Join(blackList, ","))); err != nil {
return fmt.Errorf("failed to enable ovn-ic auto route, %v", err)
}
return nil
} else {
if _, err := c.ovnNbCommand("set", "NB_Global", ".", "options:ic-route-adv=false", "options:ic-route-learn=false"); err != nil {
return fmt.Errorf("failed to disable ovn-ic auto route, %v", err)
}
return nil
}
}
// DeleteLogicalSwitchPort delete logical switch port in ovn
func (c Client) DeleteLogicalSwitchPort(port string) error {
if _, err := c.ovnNbCommand(IfExists, "lsp-del", port); err != nil {
return fmt.Errorf("failed to delete logical switch port %s, %v", port, err)
}
return nil
}
// DeleteLogicalRouterPort delete logical switch port in ovn
func (c Client) DeleteLogicalRouterPort(port string) error {
if _, err := c.ovnNbCommand(IfExists, "lrp-del", port); err != nil {
return fmt.Errorf("failed to delete logical router port %s, %v", port, err)
}
return nil
}
func (c Client) CreateICLogicalRouterPort(az, mac, subnet string, chassises []string) error {
if _, err := c.ovnNbCommand(MayExist, "lrp-add", c.ClusterRouter, fmt.Sprintf("%s-ts", az), mac, subnet); err != nil {
return fmt.Errorf("failed to crate ovn-ic lrp, %v", err)
}
if _, err := c.ovnNbCommand(MayExist, "lsp-add", util.InterconnectionSwitch, fmt.Sprintf("ts-%s", az), "--",
"lsp-set-addresses", fmt.Sprintf("ts-%s", az), "router", "--",
"lsp-set-type", fmt.Sprintf("ts-%s", az), "router", "--",
"lsp-set-options", fmt.Sprintf("ts-%s", az), fmt.Sprintf("router-port=%s-ts", az)); err != nil {
return fmt.Errorf("failed to create ovn-ic lsp, %v", err)
}
for index, chassis := range chassises {
if _, err := c.ovnNbCommand("lrp-set-gateway-chassis", fmt.Sprintf("%s-ts", az), chassis, fmt.Sprintf("%d", 100-index)); err != nil {
return fmt.Errorf("failed to set gateway chassis, %v", err)
}
}
return nil
}
func (c Client) DeleteICLogicalRouterPort(az string) error {
if err := c.DeleteLogicalRouterPort(fmt.Sprintf("%s-ts", az)); err != nil {
return fmt.Errorf("failed to delete ovn-ic logical router port. %v", err)
}
if err := c.DeleteLogicalSwitchPort(fmt.Sprintf("ts-%s", az)); err != nil {
return fmt.Errorf("failed to delete ovn-ic logical switch port. %v", err)
}
return nil
}
// CreatePort create logical switch port in ovn
func (c Client) CreatePort(ls, port, ip, cidr, mac, tag, pod, namespace string, portSecurity bool) error {
var ovnCommand []string
if util.CheckProtocol(cidr) == kubeovnv1.ProtocolDual {
ips := strings.Split(ip, ",")
ovnCommand = []string{MayExist, "lsp-add", ls, port, "--",
"lsp-set-addresses", port, fmt.Sprintf("%s %s %s", mac, ips[0], ips[1])}
ipAddr := util.GetIpAddrWithMask(ip, cidr)
ipAddrs := strings.Split(ipAddr, ",")
if portSecurity {
ovnCommand = append(ovnCommand,
"--", "lsp-set-port-security", port, fmt.Sprintf("%s %s %s", mac, ipAddrs[0], ipAddrs[1]))
}
} else {
ovnCommand = []string{MayExist, "lsp-add", ls, port, "--",
"lsp-set-addresses", port, fmt.Sprintf("%s %s", mac, ip)}
if portSecurity {
ovnCommand = append(ovnCommand,
"--", "lsp-set-port-security", port, fmt.Sprintf("%s %s/%s", mac, ip, strings.Split(cidr, "/")[1]))
}
}
if tag != "" && tag != "0" {
ovnCommand = append(ovnCommand,
"--", "set", "logical_switch_port", port, fmt.Sprintf("tag=%s", tag))
}
if pod != "" && namespace != "" {
ovnCommand = append(ovnCommand,
"--", "set", "logical_switch_port", port, fmt.Sprintf("external_ids:pod=%s/%s", namespace, pod), fmt.Sprintf("external_ids:vendor=%s", util.CniTypeName))
} else {
ovnCommand = append(ovnCommand,
"--", "set", "logical_switch_port", port, fmt.Sprintf("external_ids:vendor=%s", util.CniTypeName))
}
if _, err := c.ovnNbCommand(ovnCommand...); err != nil {
klog.Errorf("create port %s failed %v", port, err)
return err
}
return nil
}
func (c Client) ListPodLogicalSwitchPorts(pod, namespace string) ([]string, error) {
output, err := c.ovnNbCommand("--format=csv", "--data=bare", "--no-heading", "--columns=name", "find", "logical_switch_port", fmt.Sprintf("external_ids:pod=%s/%s", namespace, pod))
if err != nil {
klog.Errorf("failed to list logical switch port, %v", err)
return nil, err
}
lines := strings.Split(output, "\n")
result := make([]string, 0, len(lines))
for _, l := range lines {
if len(strings.TrimSpace(l)) == 0 {
continue
}
result = append(result, strings.TrimSpace(l))
}
return result, nil
}
func (c Client) SetLogicalSwitchConfig(ls string, isUnderlayGW bool, lr, protocol, subnet, gateway string, excludeIps []string) error {
var err error
cidrBlocks := strings.Split(subnet, ",")
mask := strings.Split(cidrBlocks[0], "/")[1]
var cmd []string
var networks string
switch protocol {
case kubeovnv1.ProtocolIPv4:
networks = fmt.Sprintf("%s/%s", gateway, mask)
cmd = []string{MayExist, "ls-add", ls, "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:subnet=%s", subnet), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:gateway=%s", gateway), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:exclude_ips=%s", strings.Join(excludeIps, " "))}
case kubeovnv1.ProtocolIPv6:
gateway := strings.ReplaceAll(gateway, ":", "\\:")
networks = fmt.Sprintf("%s/%s", gateway, mask)
cmd = []string{MayExist, "ls-add", ls, "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:ipv6_prefix=%s", strings.Split(subnet, "/")[0]), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:gateway=%s", gateway), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:exclude_ips=%s", strings.Join(excludeIps, " "))}
case kubeovnv1.ProtocolDual:
gws := strings.Split(gateway, ",")
v6Mask := strings.Split(cidrBlocks[1], "/")[1]
gwStr := gws[0] + "/" + mask + "," + gws[1] + "/" + v6Mask
networks = strings.ReplaceAll(strings.Join(strings.Split(gwStr, ","), " "), ":", "\\:")
cmd = []string{MayExist, "ls-add", ls, "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:subnet=%s", cidrBlocks[0]), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:gateway=%s", gateway), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:ipv6_prefix=%s", strings.Split(cidrBlocks[1], "/")[0]), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:exclude_ips=%s", strings.Join(excludeIps, " "))}
}
if !isUnderlayGW {
cmd = append(cmd, []string{"--",
"set", "logical_router_port", fmt.Sprintf("%s-%s", lr, ls), fmt.Sprintf("networks=%s", networks)}...)
}
_, err = c.ovnNbCommand(cmd...)
if err != nil {
klog.Errorf("set switch config for %s failed %v", ls, err)
return err
}
return nil
}
// CreateLogicalSwitch create logical switch in ovn, connect it to router and apply tcp/udp lb rules
func (c Client) CreateLogicalSwitch(ls, lr, protocol, subnet, gateway string, excludeIps []string, underlayGateway, defaultVpc bool) error {
var err error
switch protocol {
case kubeovnv1.ProtocolIPv4:
_, err = c.ovnNbCommand(MayExist, "ls-add", ls, "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:subnet=%s", subnet), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:gateway=%s", gateway), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:exclude_ips=%s", strings.Join(excludeIps, " ")))
case kubeovnv1.ProtocolIPv6:
_, err = c.ovnNbCommand(MayExist, "ls-add", ls, "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:ipv6_prefix=%s", strings.Split(subnet, "/")[0]), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:gateway=%s", gateway), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:exclude_ips=%s", strings.Join(excludeIps, " ")))
case kubeovnv1.ProtocolDual:
// gateway is not an official column, which is used for private
cidrBlocks := strings.Split(subnet, ",")
_, err = c.ovnNbCommand(MayExist, "ls-add", ls, "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:subnet=%s", cidrBlocks[0]), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:gateway=%s", gateway), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:ipv6_prefix=%s", strings.Split(cidrBlocks[1], "/")[0]), "--",
"set", "logical_switch", ls, fmt.Sprintf("other_config:exclude_ips=%s", strings.Join(excludeIps, " ")))
}
if err != nil {
klog.Errorf("create switch %s failed %v", ls, err)
return err
}
ip := util.GetIpAddrWithMask(gateway, subnet)
mac := util.GenerateMac()
if !underlayGateway {
if err := c.createRouterPort(ls, lr, ip, mac); err != nil {
klog.Errorf("failed to connect switch %s to router, %v", ls, err)
return err
}
}
if ls != c.NodeSwitch && defaultVpc {
// DO NOT add ovn dns/lb to node switch
// TODO: custom vpc not support dns/lb now
if err := c.addLoadBalancerToLogicalSwitch(c.ClusterTcpLoadBalancer, ls); err != nil {
klog.Errorf("failed to add cluster tcp lb to %s, %v", ls, err)
return err
}
if err := c.addLoadBalancerToLogicalSwitch(c.ClusterUdpLoadBalancer, ls); err != nil {
klog.Errorf("failed to add cluster udp lb to %s, %v", ls, err)
return err
}
if err := c.addLoadBalancerToLogicalSwitch(c.ClusterTcpSessionLoadBalancer, ls); err != nil {
klog.Errorf("failed to add cluster tcp session lb to %s, %v", ls, err)
return err
}
if err := c.addLoadBalancerToLogicalSwitch(c.ClusterUdpSessionLoadBalancer, ls); err != nil {
klog.Errorf("failed to add cluster udp lb to %s, %v", ls, err)
return err
}
}
return nil
}
func (c Client) CreateGatewaySwitch(name, ip, mac string, chassises []string) error {
lsTolr := fmt.Sprintf("%s-%s", name, c.ClusterRouter)
lrTols := fmt.Sprintf("%s-%s", c.ClusterRouter, name)
localnetPort := fmt.Sprintf("ln-%s", name)
_, err := c.ovnNbCommand(
MayExist, "ls-add", name, "--",
MayExist, "lsp-add", name, localnetPort, "--",
"lsp-set-type", localnetPort, "localnet", "--",
"lsp-set-addresses", localnetPort, "unknown", "--",
"lsp-set-options", localnetPort, "network_name=external", "--",
MayExist, "lrp-add", c.ClusterRouter, lrTols, mac, ip, "--",
MayExist, "lsp-add", name, lsTolr, "--",
"lsp-set-type", lsTolr, "router", "--",
"lsp-set-addresses", lsTolr, "router", "--",
"lsp-set-options", lsTolr, fmt.Sprintf("router-port=%s", lrTols),
)
if err != nil {
return fmt.Errorf("failed to create external gateway switch, %v", err)
}
for index, chassis := range chassises {
if _, err := c.ovnNbCommand("lrp-set-gateway-chassis", lrTols, chassis, fmt.Sprintf("%d", 100-index)); err != nil {
return fmt.Errorf("failed to set gateway chassis, %v", err)
}
}
return nil
}
func (c Client) DeleteGatewaySwitch(name string) error {
lrTols := fmt.Sprintf("%s-%s", c.ClusterRouter, name)
_, err := c.ovnNbCommand(
IfExists, "ls-del", name, "--",
IfExists, "lrp-del", lrTols,
)
return err
}
// ListLogicalSwitch list logical switch names
func (c Client) ListLogicalSwitch() ([]string, error) {
output, err := c.ovnNbCommand("--format=csv", "--data=bare", "--no-heading", "--columns=name", "find", "logical_switch")
if err != nil {
klog.Errorf("failed to list logical switch %v", err)
return nil, err
}
lines := strings.Split(output, "\n")
result := make([]string, 0, len(lines))
for _, l := range lines {
l = strings.TrimSpace(l)
if len(l) > 0 {
result = append(result, l)
}
}
return result, nil
}
func (c Client) LogicalSwitchExists(logicalSwitch string) (bool, error) {
lss, err := c.ListLogicalSwitch()
if err != nil {
return false, err
}
for _, ls := range lss {
if ls == logicalSwitch {
return true, nil
}
}
return false, nil
}
func (c Client) ListLogicalSwitchPort() ([]string, error) {
output, err := c.ovnNbCommand("--format=csv", "--data=bare", "--no-heading", "--columns=name", "find", "logical_switch_port", "type=\"\"", fmt.Sprintf("external_ids:vendor=%s", util.CniTypeName))
if err != nil {
klog.Errorf("failed to list logical switch port, %v", err)
return nil, err
}
lines := strings.Split(output, "\n")
result := make([]string, 0, len(lines))
for _, l := range lines {
if len(strings.TrimSpace(l)) == 0 {
continue
}
result = append(result, strings.TrimSpace(l))
}
return result, nil
}
func (c Client) LogicalSwitchPortExists(port string) (bool, error) {
output, err := c.ovnNbCommand("--format=csv", "--data=bare", "--no-heading", "--columns=name", "find", "logical_switch_port", fmt.Sprintf("name=%s", port))
if err != nil {
klog.Errorf("failed to find port %s", port)
return false, err
}
if output != "" {
return true, nil
}
return false, nil
}
func (c Client) ListRemoteLogicalSwitchPortAddress() ([]string, error) {
output, err := c.ovnNbCommand("--format=csv", "--data=bare", "--no-heading", "--columns=addresses", "find", "logical_switch_port", "type=remote")
if err != nil {
return nil, fmt.Errorf("failed to list ic remote addresses, %v", err)
}
lines := strings.Split(output, "\n")
result := make([]string, 0, len(lines))
for _, l := range lines {
if len(strings.TrimSpace(l)) == 0 {
continue
}
if len(strings.Split(l, " ")) != 2 {
continue
}
cidr := strings.Split(l, " ")[1]
result = append(result, strings.TrimSpace(cidr))
}
return result, nil
}
// ListLogicalRouter list logical router names
func (c Client) ListLogicalRouter() ([]string, error) {
output, err := c.ovnNbCommand("lr-list")
if err != nil {
klog.Errorf("failed to list logical router %v", err)
return nil, err
}
lines := strings.Split(output, "\n")
result := make([]string, 0, len(lines))
for _, l := range lines {
if len(l) == 0 || !strings.Contains(l, " ") {
continue
}
tmp := strings.Split(l, " ")[1]
tmp = strings.Trim(tmp, "()")
result = append(result, tmp)
}
return result, nil
}
// DeleteLogicalSwitch delete logical switch
func (c Client) DeleteLogicalSwitch(ls string) error {
if _, err := c.ovnNbCommand(IfExists, "ls-del", ls); err != nil {
klog.Errorf("failed to del ls %s, %v", ls, err)
return err
}
return nil
}
// CreateLogicalRouter delete logical router in ovn
func (c Client) CreateLogicalRouter(lr string) error {
_, err := c.ovnNbCommand(MayExist, "lr-add", lr)
return err
}
// DeleteLogicalRouter create logical router in ovn
func (c Client) DeleteLogicalRouter(lr string) error {
_, err := c.ovnNbCommand(IfExists, "lr-del", lr)
return err
}
func (c Client) RemoveRouterPort(ls, lr string) error {
lsTolr := fmt.Sprintf("%s-%s", ls, lr)
lrTols := fmt.Sprintf("%s-%s", lr, ls)
_, err := c.ovnNbCommand(IfExists, "lsp-del", lsTolr, "--",
IfExists, "lrp-del", lrTols)
if err != nil {
klog.Errorf("failed to remove router port, %v", err)
return err
}
return nil
}
func (c Client) createRouterPort(ls, lr, ip, mac string) error {
klog.Infof("add %s to %s with ip: %s, mac :%s", ls, lr, ip, mac)
lsTolr := fmt.Sprintf("%s-%s", ls, lr)
lrTols := fmt.Sprintf("%s-%s", lr, ls)
_, err := c.ovnNbCommand(MayExist, "lsp-add", ls, lsTolr, "--",
"set", "logical_switch_port", lsTolr, "type=router", "--",
"set", "logical_switch_port", lsTolr, fmt.Sprintf("addresses=\"%s\"", mac), "--",
"set", "logical_switch_port", lsTolr, fmt.Sprintf("options:router-port=%s", lrTols))
if err != nil {
klog.Errorf("failed to create switch router port %s %v", lsTolr, err)
return err
}
ipStr := strings.Split(ip, ",")
if len(ipStr) == 2 {
_, err = c.ovnNbCommand(MayExist, "lrp-add", lr, lrTols, mac, ipStr[0], ipStr[1])
} else {
_, err = c.ovnNbCommand(MayExist, "lrp-add", lr, lrTols, mac, ipStr[0])
}
if err != nil {
klog.Errorf("failed to create router port %s %v", lrTols, err)
return err
}
return nil
}
type StaticRoute struct {
Policy string
CIDR string
NextHop string
}
func (c Client) ListStaticRoute() ([]StaticRoute, error) {
output, err := c.ovnNbCommand("--format=csv", "--no-heading", "--data=bare", "--columns=ip_prefix,nexthop,policy", "find", "Logical_Router_Static_Route", "external_ids{=}{}")
if err != nil {
return nil, err
}
entries := strings.Split(output, "\n")
staticRoutes := make([]StaticRoute, 0, len(entries))
for _, entry := range strings.Split(output, "\n") {
if len(strings.Split(entry, ",")) == 3 {
t := strings.Split(entry, ",")
staticRoutes = append(staticRoutes,
StaticRoute{CIDR: strings.TrimSpace(t[0]), NextHop: strings.TrimSpace(t[1]), Policy: strings.TrimSpace(t[2])})
}
}
return staticRoutes, nil
}
// AddStaticRoute add a static route rule in ovn
func (c Client) AddStaticRoute(policy, cidr, nextHop, router string, routeType string) error {
if policy == "" {
policy = PolicyDstIP
}
for _, cidrBlock := range strings.Split(cidr, ",") {
for _, gw := range strings.Split(nextHop, ",") {
if util.CheckProtocol(cidrBlock) != util.CheckProtocol(gw) {
continue
}
if routeType == util.EcmpRouteType {
if _, err := c.ovnNbCommand(MayExist, fmt.Sprintf("%s=%s", Policy, policy), "--ecmp", "lr-route-add", router, cidrBlock, gw); err != nil {
return err
}
} else {
if _, err := c.ovnNbCommand(MayExist, fmt.Sprintf("%s=%s", Policy, policy), "lr-route-add", router, cidrBlock, gw); err != nil {
return err
}
}
}
}
return nil
}
func (c Client) GetStaticRouteList(router string) (routeList []*StaticRoute, err error) {
output, err := c.ovnNbCommand("lr-route-list", router)
if err != nil {
klog.Errorf("failed to list logical router route %v", err)
return nil, err
}
return parseLrRouteListOutput(output)
}
func parseLrRouteListOutput(output string) (routeList []*StaticRoute, err error) {
lines := strings.Split(output, "\n")
routeList = make([]*StaticRoute, 0, len(lines))
for _, l := range lines {
if strings.Contains(l, "learned") {
continue
}
if len(l) == 0 {
continue
}
reg := regexp.MustCompile(`(\d+.\d+.\d+.\d+(/\d+)*)\s+(\d+.\d+.\d+.\d+)\s+(dst-ip|src-ip)`)
sm := reg.FindStringSubmatch(l)
if len(sm) == 0 {
continue
}
routeList = append(routeList, &StaticRoute{
Policy: sm[4],
CIDR: sm[1],
NextHop: sm[3],
})
}
return routeList, nil
}
func (c Client) UpdateNatRule(policy, logicalIP, externalIP, router, logicalMac, port string) error {
if policy == "snat" {
if externalIP == "" {
_, err := c.ovnNbCommand(IfExists, "lr-nat-del", router, "snat", logicalIP)
return err
}
_, err := c.ovnNbCommand(IfExists, "lr-nat-del", router, "snat", logicalIP, "--",
MayExist, "lr-nat-add", router, policy, externalIP, logicalIP)
return err
} else {
output, err := c.ovnNbCommand("--format=csv", "--no-heading", "--data=bare", "--columns=external_ip", "find", "NAT", fmt.Sprintf("logical_ip=%s", logicalIP), "type=dnat_and_snat")
if err != nil {
klog.Errorf("failed to list nat rules, %v", err)
return err
}
eips := strings.Split(output, "\n")
for _, eip := range eips {
eip = strings.TrimSpace(eip)
if eip == "" || eip == externalIP {
continue
}
if _, err := c.ovnNbCommand(IfExists, "lr-nat-del", router, "dnat_and_snat", eip); err != nil {
klog.Errorf("failed to delete nat rule, %v", err)
return err
}
}
if externalIP != "" {
if c.ExternalGatewayType == "distributed" {
_, err = c.ovnNbCommand(MayExist, "--stateless", "lr-nat-add", router, policy, externalIP, logicalIP, port, logicalMac)
return err
} else {
_, err = c.ovnNbCommand(MayExist, "lr-nat-add", router, policy, externalIP, logicalIP)
return err
}
}
}
return nil
}
func (c Client) DeleteNatRule(logicalIP, router string) error {
output, err := c.ovnNbCommand("--format=csv", "--no-heading", "--data=bare", "--columns=type,external_ip", "find", "NAT", fmt.Sprintf("logical_ip=%s", logicalIP))
if err != nil {
klog.Errorf("failed to list nat rules, %v", err)
return err
}
rules := strings.Split(output, "\n")
for _, rule := range rules {
if len(strings.Split(rule, ",")) != 2 {
continue
}
policy, externalIP := strings.Split(rule, ",")[0], strings.Split(rule, ",")[1]
if policy == "snat" {
if _, err := c.ovnNbCommand(IfExists, "lr-nat-del", router, "snat", logicalIP); err != nil {
klog.Errorf("failed to delete nat rule, %v", err)
return err
}
} else if policy == "dnat_and_snat" {
if _, err := c.ovnNbCommand(IfExists, "lr-nat-del", router, "dnat_and_snat", externalIP); err != nil {
klog.Errorf("failed to delete nat rule, %v", err)
return err
}
}
}
return err
}
func (c Client) DeleteMatchedStaticRoute(cidr, nexthop, router string) error {
if cidr == "" || nexthop == "" {
return nil
}
_, err := c.ovnNbCommand(IfExists, "lr-route-del", router, cidr, nexthop)
return err
}
// DeleteStaticRoute delete a static route rule in ovn
func (c Client) DeleteStaticRoute(cidr, router string) error {
if cidr == "" {
return nil
}
_, err := c.ovnNbCommand(IfExists, "lr-route-del", router, cidr)
return err
}
func (c Client) DeleteStaticRouteByNextHop(nextHop string) error {
if strings.TrimSpace(nextHop) == "" {
return nil
}
output, err := c.ovnNbCommand("--format=csv", "--no-heading", "--data=bare", "--columns=ip_prefix", "find", "Logical_Router_Static_Route", fmt.Sprintf("nexthop=%s", nextHop))
if err != nil {
klog.Errorf("failed to list static route %s, %v", nextHop, err)
return err
}
ipPrefixes := strings.Split(output, "\n")
for _, ipPre := range ipPrefixes {
if strings.TrimSpace(ipPre) == "" {
continue
}
if err := c.DeleteStaticRoute(ipPre, c.ClusterRouter); err != nil {
klog.Errorf("failed to delete route %s, %v", ipPre, err)
return err
}
}
return nil
}
// FindLoadbalancer find ovn loadbalancer uuid by name
func (c Client) FindLoadbalancer(lb string) (string, error) {
output, err := c.ovnNbCommand("--data=bare", "--no-heading", "--columns=_uuid",
"find", "load_balancer", fmt.Sprintf("name=%s", lb))
count := len(strings.Split(output, "\n"))
if count > 1 {
klog.Errorf("%s has %d lb entries", lb, count)
return "", fmt.Errorf("%s has %d lb entries", lb, count)
}
return output, err
}
// CreateLoadBalancer create loadbalancer in ovn
func (c Client) CreateLoadBalancer(lb, protocol, selectFields string) error {
var err error
if selectFields == "" {
_, err = c.ovnNbCommand("create", "load_balancer",
fmt.Sprintf("name=%s", lb), fmt.Sprintf("protocol=%s", protocol))
} else {
_, err = c.ovnNbCommand("create", "load_balancer",
fmt.Sprintf("name=%s", lb), fmt.Sprintf("protocol=%s", protocol), fmt.Sprintf("selection_fields=%s", selectFields))
}
return err
}
// CreateLoadBalancerRule create loadbalancer rul in ovn
func (c Client) CreateLoadBalancerRule(lb, vip, ips, protocol string) error {
_, err := c.ovnNbCommand(MayExist, "lb-add", lb, vip, ips, strings.ToLower(protocol))
return err
}
func (c Client) addLoadBalancerToLogicalSwitch(lb, ls string) error {
_, err := c.ovnNbCommand(MayExist, "ls-lb-add", ls, lb)
return err
}
// DeleteLoadBalancerVip delete a vip rule from loadbalancer
func (c Client) DeleteLoadBalancerVip(vip, lb string) error {
lbUuid, err := c.FindLoadbalancer(lb)
if err != nil {
klog.Errorf("failed to get lb %v", err)
return err
}
existVips, err := c.GetLoadBalancerVips(lbUuid)
if err != nil {
klog.Errorf("failed to list lb %s vips, %v", lb, err)
return err
}
// vip is empty or delete last rule will destroy the loadbalancer
if vip == "" || len(existVips) == 1 {
return nil
}
_, err = c.ovnNbCommand(IfExists, "lb-del", lb, vip)
return err
}
// GetLoadBalancerVips return vips of a loadbalancer
func (c Client) GetLoadBalancerVips(lb string) (map[string]string, error) {
output, err := c.ovnNbCommand("--data=bare", "--no-heading",
"get", "load_balancer", lb, "vips")
if err != nil {
return nil, err
}
result := map[string]string{}
err = json.Unmarshal([]byte(strings.Replace(output, "=", ":", -1)), &result)
return result, err
}
// CleanLogicalSwitchAcl clean acl of a switch
func (c Client) CleanLogicalSwitchAcl(ls string) error {
_, err := c.ovnNbCommand("acl-del", ls)
return err
}
func (c Client) SetNodeSwitchAcl(ls string) error {
cidrs := strings.Split(c.NodeSwitchCIDR, ",")
for _, cidr := range cidrs {
var err error
if util.CheckProtocol(cidr) == kubeovnv1.ProtocolIPv4 {
_, err = c.ovnNbCommand(MayExist, "acl-add", ls, "to-lport", util.NodeAllowPriority, fmt.Sprintf("ip4.src==%s", c.NodeSwitchCIDR), "allow-related")
} else {
_, err = c.ovnNbCommand(MayExist, "acl-add", ls, "to-lport", util.NodeAllowPriority, fmt.Sprintf("ip6.src==%s", c.NodeSwitchCIDR), "allow-related")
}
if err != nil {
klog.Errorf("failed to add node switch acl")
return err
}
}
return nil
}
func (c Client) RemoveNodeSwitchAcl(ls string) error {
cidrs := strings.Split(c.NodeSwitchCIDR, ",")
for _, cidr := range cidrs {
var err error
if util.CheckProtocol(cidr) == kubeovnv1.ProtocolIPv4 {
_, err = c.ovnNbCommand("acl-del", ls, "to-lport", util.NodeAllowPriority, fmt.Sprintf("ip4.src==%s", c.NodeSwitchCIDR))
} else {
_, err = c.ovnNbCommand("acl-del", ls, "to-lport", util.NodeAllowPriority, fmt.Sprintf("ip6.src==%s", c.NodeSwitchCIDR))
}
if err != nil {
klog.Errorf("failed to delete node switch acl")
return err
}
}
return nil
}
// ResetLogicalSwitchAcl reset acl of a switch
func (c Client) ResetLogicalSwitchAcl(ls string) error {
_, err := c.ovnNbCommand("acl-del", ls)
return err
}
// SetPrivateLogicalSwitch will drop all ingress traffic except allow subnets
func (c Client) SetPrivateLogicalSwitch(ls, protocol, cidr string, allow []string) error {
delArgs := []string{"acl-del", ls}
allowArgs := []string{}
var dropArgs []string
if protocol == kubeovnv1.ProtocolIPv4 {
dropArgs = []string{"--", "--log", fmt.Sprintf("--name=%s", ls), fmt.Sprintf("--severity=%s", "warning"), "acl-add", ls, "to-lport", util.DefaultDropPriority, "ip", "drop"}
allowArgs = append(allowArgs, "--", MayExist, "acl-add", ls, "to-lport", util.NodeAllowPriority, fmt.Sprintf("ip4.src==%s", c.NodeSwitchCIDR), "allow-related")
allowArgs = append(allowArgs, "--", MayExist, "acl-add", ls, "to-lport", util.SubnetAllowPriority, fmt.Sprintf(`ip4.src==%s && ip4.dst==%s`, cidr, cidr), "allow-related")
} else {
dropArgs = []string{"--", "--log", fmt.Sprintf("--name=%s", ls), fmt.Sprintf("--severity=%s", "warning"), "acl-add", ls, "to-lport", util.DefaultDropPriority, "ip", "drop"}
allowArgs = append(allowArgs, "--", MayExist, "acl-add", ls, "to-lport", util.NodeAllowPriority, fmt.Sprintf("ip6.src==%s", c.NodeSwitchCIDR), "allow-related")
allowArgs = append(allowArgs, "--", MayExist, "acl-add", ls, "to-lport", util.SubnetAllowPriority, fmt.Sprintf(`ip6.src==%s && ip6.dst==%s`, cidr, cidr), "allow-related")
}
ovnArgs := append(delArgs, dropArgs...)
for _, subnet := range allow {
if strings.TrimSpace(subnet) != "" {
var match string
switch protocol {
case kubeovnv1.ProtocolIPv4:
match = fmt.Sprintf("(ip4.src==%s && ip4.dst==%s) || (ip4.src==%s && ip4.dst==%s)", strings.TrimSpace(subnet), cidr, cidr, strings.TrimSpace(subnet))
case kubeovnv1.ProtocolIPv6:
match = fmt.Sprintf("(ip6.src==%s && ip6.dst==%s) || (ip6.src==%s && ip6.dst==%s)", strings.TrimSpace(subnet), cidr, cidr, strings.TrimSpace(subnet))
}
allowArgs = append(allowArgs, "--", MayExist, "acl-add", ls, "to-lport", util.SubnetAllowPriority, match, "allow-related")
}
}
ovnArgs = append(ovnArgs, allowArgs...)
_, err := c.ovnNbCommand(ovnArgs...)
return err
}
func (c Client) GetLogicalSwitchPortAddress(port string) ([]string, error) {
output, err := c.ovnNbCommand("get", "logical_switch_port", port, "addresses")
if err != nil {
klog.Errorf("get port %s addresses failed %v", port, err)
return nil, err
}
if strings.Contains(output, "dynamic") {
// [dynamic]
return nil, nil
}
output = strings.Trim(output, `[]"`)
if len(strings.Split(output, " ")) != 2 {
return nil, nil
}
// currently user may only have one fixed address
// ["0a:00:00:00:00:0c 10.16.0.13"]
mac := strings.Split(output, " ")[0]
ip := strings.Split(output, " ")[1]
return []string{mac, ip}, nil
}
func (c Client) GetLogicalSwitchPortDynamicAddress(port string) ([]string, error) {
output, err := c.ovnNbCommand("wait-until", "logical_switch_port", port, "dynamic_addresses!=[]", "--",
"get", "logical_switch_port", port, "dynamic-addresses")
if err != nil {
klog.Errorf("get port %s dynamic_addresses failed %v", port, err)
return nil, err
}
if output == "[]" {
return nil, ErrNoAddr
}
output = strings.Trim(output, `"`)
// "0a:00:00:00:00:02"
if len(strings.Split(output, " ")) != 2 {
klog.Error("Subnet address space has been exhausted")
return nil, ErrNoAddr
}
// "0a:00:00:00:00:02 100.64.0.3"
mac := strings.Split(output, " ")[0]
ip := strings.Split(output, " ")[1]
return []string{mac, ip}, nil
}
// GetPortAddr return port [mac, ip]
func (c Client) GetPortAddr(port string) ([]string, error) {
var address []string
var err error
address, err = c.GetLogicalSwitchPortAddress(port)
if err != nil {
return nil, err
}
if address == nil {
address, err = c.GetLogicalSwitchPortDynamicAddress(port)
if err != nil {
return nil, err
}
}
return address, nil
}
func (c Client) CreatePortGroup(pgName, npNs, npName string) error {
output, err := c.ovnNbCommand(
"--data=bare", "--no-heading", "--columns=_uuid", "find", "port_group", fmt.Sprintf("name=%s", pgName))
if err != nil {
klog.Errorf("failed to find port_group %s", pgName)
return err
}
if output != "" {
return nil
}
_, err = c.ovnNbCommand(
"pg-add", pgName,
"--", "set", "port_group", pgName, fmt.Sprintf("external_ids:np=%s/%s", npNs, npName),
)
return err
}
func (c Client) DeletePortGroup(pgName string) error {
if _, err := c.ovnNbCommand("get", "port_group", pgName, "_uuid"); err != nil {
if strings.Contains(err.Error(), "no row") {
return nil
}
klog.Errorf("failed to get pg %s, %v", pgName, err)
return err
}
_, err := c.ovnNbCommand("pg-del", pgName)
return err
}
type portGroup struct {
Name string
NpName string
NpNamespace string
}
func (c Client) ListPortGroup() ([]portGroup, error) {
output, err := c.ovnNbCommand("--data=bare", "--format=csv", "--no-heading", "--columns=name,external_ids", "list", "port_group")
if err != nil {
klog.Errorf("failed to list logical port-group, %v", err)
return nil, err
}
lines := strings.Split(output, "\n")
result := make([]portGroup, 0, len(lines))
for _, l := range lines {
if len(strings.TrimSpace(l)) == 0 {
continue
}
parts := strings.Split(strings.TrimSpace(l), ",")
if len(parts) != 2 {
continue
}
name := strings.TrimSpace(parts[0])
np := strings.Split(strings.TrimPrefix(strings.TrimSpace(parts[1]), "np="), "/")
if len(np) != 2 {
continue
}
result = append(result, portGroup{Name: name, NpNamespace: np[0], NpName: np[1]})
}
return result, nil
}
func (c Client) CreateAddressSet(asName, npNamespace, npName, direction string) error {
output, err := c.ovnNbCommand("--data=bare", "--no-heading", "--columns=_uuid", "find", "address_set", fmt.Sprintf("name=%s", asName))
if err != nil {
klog.Errorf("failed to find address_set %s", asName)
return err
}
if output != "" {
return nil
}
_, err = c.ovnNbCommand("create", "address_set", fmt.Sprintf("name=%s", asName), fmt.Sprintf("external_ids:np=%s/%s/%s", npNamespace, npName, direction))
return err
}
func (c Client) ListAddressSet(npNamespace, npName, direction string) ([]string, error) {
output, err := c.ovnNbCommand("--data=bare", "--no-heading", "--columns=name", "find", "address_set", fmt.Sprintf("external_ids:np=%s/%s/%s", npNamespace, npName, direction))
if err != nil {
klog.Errorf("failed to list address_set of %s/%s/%s", npNamespace, npName, direction)
return nil, err
}
return strings.Split(output, "\n"), nil
}
func (c Client) DeleteAddressSet(asName string) error {
_, err := c.ovnNbCommand(IfExists, "destroy", "address_set", asName)
return err
}
func (c Client) CreateIngressACL(npName, pgName, asIngressName, asExceptName, protocol string, npp []netv1.NetworkPolicyPort) error {
ipSuffix := "ip4"
if protocol == kubeovnv1.ProtocolIPv6 {
ipSuffix = "ip6"
}
pgAs := fmt.Sprintf("%s_%s", pgName, ipSuffix)
ovnArgs := []string{MayExist, "--type=port-group", "--log", fmt.Sprintf("--name=%s", npName), fmt.Sprintf("--severity=%s", "warning"), "acl-add", pgName, "to-lport", util.IngressDefaultDrop, fmt.Sprintf("%s.dst == $%s", ipSuffix, pgAs), "drop"}
if len(npp) == 0 {
allowArgs := []string{"--", MayExist, "--type=port-group", "acl-add", pgName, "to-lport", util.IngressAllowPriority, fmt.Sprintf("%s.src == $%s && %s.src != $%s && %s.dst == $%s", ipSuffix, asIngressName, ipSuffix, asExceptName, ipSuffix, pgAs), "allow-related"}
ovnArgs = append(ovnArgs, allowArgs...)
} else {
for _, port := range npp {
allowArgs := []string{"--", MayExist, "--type=port-group", "acl-add", pgName, "to-lport", util.IngressAllowPriority, fmt.Sprintf("%s.src == $%s && %s.src != $%s && %s.dst == %d && %s.dst == $%s", ipSuffix, asIngressName, ipSuffix, asExceptName, strings.ToLower(string(*port.Protocol)), port.Port.IntVal, ipSuffix, pgAs), "allow-related"}
ovnArgs = append(ovnArgs, allowArgs...)
}
}
_, err := c.ovnNbCommand(ovnArgs...)
return err
}
func (c Client) CreateEgressACL(npName, pgName, asEgressName, asExceptName, protocol string, npp []netv1.NetworkPolicyPort) error {
ipSuffix := "ip4"
if protocol == kubeovnv1.ProtocolIPv6 {
ipSuffix = "ip6"
}
pgAs := fmt.Sprintf("%s_%s", pgName, ipSuffix)
ovnArgs := []string{"--", MayExist, "--type=port-group", "--log", fmt.Sprintf("--name=%s", npName), fmt.Sprintf("--severity=%s", "warning"), "acl-add", pgName, "from-lport", util.EgressDefaultDrop, fmt.Sprintf("%s.src == $%s", ipSuffix, pgAs), "drop"}
if len(npp) == 0 {
allowArgs := []string{"--", MayExist, "--type=port-group", "acl-add", pgName, "from-lport", util.EgressAllowPriority, fmt.Sprintf("%s.dst == $%s && %s.dst != $%s && %s.src == $%s", ipSuffix, asEgressName, ipSuffix, asExceptName, ipSuffix, pgAs), "allow-related"}
ovnArgs = append(ovnArgs, allowArgs...)