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authorRitu Sood <ritu.sood@intel.com>2018-11-10 03:54:15 +0000
committerVictor Morales <victor.morales@intel.com>2018-12-05 16:26:56 -0800
commita1abd829315d72adb258da20470eaa2445cf3e32 (patch)
treea1c2ae3e61490241b0a4c93f49acffd6d319a7a4 /src/k8splugin/plugins/ovn4nfvk8s-network/plugin.go
parentdaf3a00798ee77e469cd89cb16ade818c50968f9 (diff)
Add Network and OVN4NFV Plugins
This patch includes support for Network Objects through a new plugin. It also add the first sub-module plugin for OVN4NFVK8s support. Change-Id: Ia23c42d50f75a5206e1b6a04052c34e940518428 Signed-off-by: Ritu Sood <ritu.sood@intel.com> Signed-off-by: Victor Morales <victor.morales@intel.com> Issue-ID: MULTICLOUD-303
Diffstat (limited to 'src/k8splugin/plugins/ovn4nfvk8s-network/plugin.go')
-rw-r--r--src/k8splugin/plugins/ovn4nfvk8s-network/plugin.go157
1 files changed, 157 insertions, 0 deletions
diff --git a/src/k8splugin/plugins/ovn4nfvk8s-network/plugin.go b/src/k8splugin/plugins/ovn4nfvk8s-network/plugin.go
new file mode 100644
index 00000000..959586bc
--- /dev/null
+++ b/src/k8splugin/plugins/ovn4nfvk8s-network/plugin.go
@@ -0,0 +1,157 @@
+/*
+Copyright 2018 Intel Corporation.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+ "bytes"
+ "fmt"
+ kexec "k8s.io/utils/exec"
+ "os"
+
+ pkgerrors "github.com/pkg/errors"
+ "k8splugin/plugins/network/v1"
+ "log"
+ "strings"
+ "unicode"
+
+ "math/rand"
+ "time"
+)
+
+const (
+ ovn4nfvRouter = "ovn4nfv-master"
+ ovnNbctlCommand = "ovn-nbctl"
+)
+
+type OVNNbctler interface {
+ Run(args ...string) (string, string, error)
+}
+
+type OVNNbctl struct {
+ run func(args ...string) (string, string, error)
+ exec kexec.Interface
+ path string
+}
+
+// Run a command via ovn-nbctl
+func (ctl *OVNNbctl) Run(args ...string) (string, string, error) {
+ if ctl.path == "" {
+ nbctlPath, err := ctl.exec.LookPath(ovnNbctlCommand)
+ if err != nil {
+ return "", "", pkgerrors.Wrap(err, "Look nbctl path error")
+ }
+ ctl.path = nbctlPath
+ }
+ if ctl.exec == nil {
+ ctl.exec = kexec.New()
+ }
+
+ stdout := &bytes.Buffer{}
+ stderr := &bytes.Buffer{}
+ cmd := ctl.exec.Command(ctl.path, args...)
+ cmd.SetStdout(stdout)
+ cmd.SetStderr(stderr)
+ err := cmd.Run()
+
+ return strings.Trim(strings.TrimFunc(stdout.String(), unicode.IsSpace), "\""),
+ stderr.String(), err
+}
+
+var ovnCmd OVNNbctler
+
+func init() {
+ ovnCmd = &OVNNbctl{}
+}
+
+// CreateNetwork in OVN controller
+func CreateNetwork(network *v1.OnapNetwork) (string, error) {
+ config, err := network.DecodeConfig()
+ if err != nil {
+ return "", err
+ }
+
+ name := config["name"].(string)
+ if name == "" {
+ return "", pkgerrors.New("Empty Name value")
+ }
+
+ subnet := config["subnet"].(string)
+ if subnet == "" {
+ return "", pkgerrors.New("Empty Subnet value")
+ }
+
+ gatewayIPMask := config["gateway"].(string)
+ if gatewayIPMask == "" {
+ return "", pkgerrors.New("Empty Gateway IP Mask")
+ }
+
+ routerMac, stderr, err := ovnCmd.Run(getAuthStr(), "--if-exist", "-v", "get", "logical_router_port", "rtos-"+name, "mac")
+ if err != nil {
+ return "", pkgerrors.Wrapf(err, "Failed to get logical router port,stderr: %q, error: %v", stderr, err)
+ }
+
+ if routerMac == "" {
+ log.Print("Generate MAC address")
+ prefix := "00:00:00"
+ newRand := rand.New(rand.NewSource(time.Now().UnixNano()))
+ routerMac = fmt.Sprintf("%s:%02x:%02x:%02x", prefix, newRand.Intn(255), newRand.Intn(255), newRand.Intn(255))
+ }
+
+ _, stderr, err = ovnCmd.Run(getAuthStr(), "--may-exist", "lrp-add", ovn4nfvRouter, "rtos-"+name, routerMac, gatewayIPMask)
+ if err != nil {
+ return "", pkgerrors.Wrapf(err, "Failed to add logical port to router, stderr: %q, error: %v", stderr, err)
+ }
+
+ // Create a logical switch and set its subnet.
+ stdout, stderr, err := ovnCmd.Run(getAuthStr(), "--", "--may-exist", "ls-add", name, "--", "set", "logical_switch", name, "other-config:subnet="+subnet, "external-ids:gateway_ip="+gatewayIPMask)
+ if err != nil {
+ return "", pkgerrors.Wrapf(err, "Failed to create a logical switch %v, stdout: %q, stderr: %q, error: %v", name, stdout, stderr, err)
+ }
+
+ // Connect the switch to the router.
+ stdout, stderr, err = ovnCmd.Run(getAuthStr(), "--", "--may-exist", "lsp-add", name, "stor-"+name, "--", "set", "logical_switch_port", "stor-"+name, "type=router", "options:router-port=rtos-"+name, "addresses="+"\""+routerMac+"\"")
+ if err != nil {
+ return "", pkgerrors.Wrapf(err, "Failed to add logical port to switch, stdout: %q, stderr: %q, error: %v", stdout, stderr, err)
+ }
+
+ return name, nil
+}
+
+// DeleteNetwork in OVN controller
+func DeleteNetwork(name string) error {
+ log.Printf("Deleting Network: Ovn4nfvk8s %s", name)
+
+ stdout, stderr, err := ovnCmd.Run(getAuthStr(), "--if-exist", "ls-del", name)
+ if err != nil {
+ return pkgerrors.Wrapf(err, "Failed to delete switch %v, stdout: %q, stderr: %q, error: %v", name, stdout, stderr, err)
+ }
+
+ stdout, stderr, err = ovnCmd.Run(getAuthStr(), "--if-exist", "lrp-del", "rtos-"+name)
+ if err != nil {
+ return pkgerrors.Wrapf(err, "Failed to delete router port %v, stdout: %q, stderr: %q, error: %v", name, stdout, stderr, err)
+ }
+
+ stdout, stderr, err = ovnCmd.Run(getAuthStr(), "--if-exist", "lsp-del", "stor-"+name)
+ if err != nil {
+ return pkgerrors.Wrapf(err, "Failed to delete switch port %v, stdout: %q, stderr: %q, error: %v", name, stdout, stderr, err)
+ }
+
+ return nil
+}
+
+func getAuthStr() string {
+ //TODO: Remove hardcoding: Use ESR data passed to Initialize
+ ovnCentralAddress := os.Getenv("OVN_CENTRAL_ADDRESS")
+ return "--db=tcp:" + ovnCentralAddress
+}