Seed code for the Plugin

The code includes ovn4nfvk8s Plugin & CNI. It implements multiple OVN
interfaces for Pods and assumes Multus (or similar CNI) calls its CNI
not as first CNI.

Change-Id: I524c1d18752eb6dbc8d34addd3b60d5bbaa06ff4
Signed-off-by: Ritu Sood <ritu.sood@intel.com>
Signed-off-by: Victor Morales <victor.morales@intel.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/internal/pkg/ovn/router.go b/internal/pkg/ovn/router.go
new file mode 100644
index 0000000..d98c463
--- /dev/null
+++ b/internal/pkg/ovn/router.go
@@ -0,0 +1,50 @@
+package ovn
+
+import (
+	"github.com/sirupsen/logrus"
+	"ovn4nfv-k8s-plugin/internal/pkg/util"
+)
+
+func SetupMaster(name string) error {
+
+	// Make sure br-int is created.
+	stdout, stderr, err := util.RunOVSVsctl("--", "--may-exist", "add-br", "br-int")
+	if err != nil {
+		logrus.Errorf("Failed to create br-int, stdout: %q, stderr: %q, error: %v", stdout, stderr, err)
+		return err
+	}
+	// Create a single common distributed router for the cluster.
+	stdout, stderr, err = util.RunOVNNbctlUnix("--", "--may-exist", "lr-add", name, "--", "set", "logical_router", name, "external_ids:ovn4nfv-cluster-router=yes")
+	if err != nil {
+		logrus.Errorf("Failed to create a single common distributed router for the cluster, stdout: %q, stderr: %q, error: %v", stdout, stderr, err)
+		return err
+	}
+	// Create a logical switch called "ovn4nfv-join" that will be used to connect gateway routers to the distributed router.
+	// The "ovn4nfv-join" will be allocated IP addresses in the range 100.64.1.0/24.
+	stdout, stderr, err = util.RunOVNNbctlUnix("--may-exist", "ls-add", "ovn4nfv-join")
+	if err != nil {
+		logrus.Errorf("Failed to create logical switch called \"ovn4nfv-join\", stdout: %q, stderr: %q, error: %v", stdout, stderr, err)
+		return err
+	}
+	// Connect the distributed router to "ovn4nfv-join".
+	routerMac, stderr, err := util.RunOVNNbctlUnix("--if-exist", "get", "logical_router_port", "rtoj-"+name, "mac")
+	if err != nil {
+		logrus.Errorf("Failed to get logical router port rtoj-%v, stderr: %q, error: %v", name, stderr, err)
+		return err
+	}
+	if routerMac == "" {
+		routerMac = util.GenerateMac()
+		stdout, stderr, err = util.RunOVNNbctlUnix("--", "--may-exist", "lrp-add", name, "rtoj-"+name, routerMac, "100.64.1.1/24", "--", "set", "logical_router_port", "rtoj-"+name, "external_ids:connect_to_ovn4nfvjoin=yes")
+		if err != nil {
+			logrus.Errorf("Failed to add logical router port rtoj-%v, stdout: %q, stderr: %q, error: %v", name, stdout, stderr, err)
+			return err
+		}
+	}
+	// Connect the switch "ovn4nfv-join" to the router.
+	stdout, stderr, err = util.RunOVNNbctlUnix("--", "--may-exist", "lsp-add", "ovn4nfv-join", "jtor-"+name, "--", "set", "logical_switch_port", "jtor-"+name, "type=router", "options:router-port=rtoj-"+name, "addresses="+"\""+routerMac+"\"")
+	if err != nil {
+		logrus.Errorf("Failed to add logical switch port to logical router, stdout: %q, stderr: %q, error: %v", stdout, stderr, err)
+		return err
+	}
+	return nil
+}