Add vr-c8000v kind

This is right now a verbatim copy of the existing vr-csr kind. I expect
they will diverge in the future though, so it is best to create a copy
now rather than encourage branching logic in the same file.

clab/register.go

@@ -24,6 +24,7 @@ import (
 	sonic "github.com/srl-labs/containerlab/nodes/sonic"
 	srl "github.com/srl-labs/containerlab/nodes/srl"
 	vr_aoscx "github.com/srl-labs/containerlab/nodes/vr_aoscx"
+	vr_c8000v "github.com/srl-labs/containerlab/nodes/vr_c8000v"
 	vr_csr "github.com/srl-labs/containerlab/nodes/vr_csr"
 	vr_freebsd "github.com/srl-labs/containerlab/nodes/vr_freebsd"
 	vr_ftdv "github.com/srl-labs/containerlab/nodes/vr_ftdv"
@@ -62,6 +63,7 @@ func (c *CLab) RegisterNodes() {
 	srl.Register(c.Reg)
 	vr_aoscx.Register(c.Reg)
 	vr_csr.Register(c.Reg)
+	vr_c8000v.Register(c.Reg)
 	vr_freebsd.Register(c.Reg)
 	vr_ftosv.Register(c.Reg)
 	vr_n9kv.Register(c.Reg)

nodes/vr_c8000v/vr-c8000v.go

@@ -0,0 +1,102 @@
+// Copyright 2020 Nokia
+// Licensed under the BSD 3-Clause License.
+// SPDX-License-Identifier: BSD-3-Clause
+
+package vr_c8000v
+
+import (
+	"context"
+	"fmt"
+	"path"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/srl-labs/containerlab/netconf"
+	"github.com/srl-labs/containerlab/nodes"
+	"github.com/srl-labs/containerlab/types"
+	"github.com/srl-labs/containerlab/utils"
+)
+
+var (
+	kindnames          = []string{"cisco_8000v", "vr-c8000v"}
+	defaultCredentials = nodes.NewCredentials("admin", "admin")
+)
+
+const (
+	scrapliPlatformName = "cisco_iosxe"
+
+	configDirName   = "config"
+	startupCfgFName = "startup-config.cfg"
+)
+
+// Register registers the node in the NodeRegistry.
+func Register(r *nodes.NodeRegistry) {
+	r.Register(kindnames, func() nodes.Node {
+		return new(vrC8000v)
+	}, defaultCredentials)
+}
+
+type vrC8000v struct {
+	nodes.DefaultNode
+}
+
+func (n *vrC8000v) Init(cfg *types.NodeConfig, opts ...nodes.NodeOption) error {
+	// Init DefaultNode
+	n.DefaultNode = *nodes.NewDefaultNode(n)
+	// set virtualization requirement
+	n.HostRequirements.VirtRequired = true
+
+	n.Cfg = cfg
+	for _, o := range opts {
+		o(n)
+	}
+	// env vars are used to set launch.py arguments in vrnetlab container
+	defEnv := map[string]string{
+		"CONNECTION_MODE":    nodes.VrDefConnMode,
+		"USERNAME":           defaultCredentials.GetUsername(),
+		"PASSWORD":           defaultCredentials.GetPassword(),
+		"DOCKER_NET_V4_ADDR": n.Mgmt.IPv4Subnet,
+		"DOCKER_NET_V6_ADDR": n.Mgmt.IPv6Subnet,
+	}
+	n.Cfg.Env = utils.MergeStringMaps(defEnv, n.Cfg.Env)
+
+	// mount config dir to support startup-config functionality
+	n.Cfg.Binds = append(n.Cfg.Binds, fmt.Sprint(path.Join(n.Cfg.LabDir, configDirName), ":/config"))
+
+	if n.Cfg.Env["CONNECTION_MODE"] == "macvtap" {
+		// mount dev dir to enable macvtap
+		n.Cfg.Binds = append(n.Cfg.Binds, "/dev:/dev")
+	}
+
+	n.Cfg.Cmd = fmt.Sprintf("--username %s --password %s --hostname %s --connection-mode %s --trace",
+		n.Cfg.Env["USERNAME"], n.Cfg.Env["PASSWORD"], n.Cfg.ShortName, n.Cfg.Env["CONNECTION_MODE"])
+
+	return nil
+}
+
+func (s *vrC8000v) PreDeploy(_ context.Context, params *nodes.PreDeployParams) error {
+	utils.CreateDirectory(s.Cfg.LabDir, 0777)
+	_, err := s.LoadOrGenerateCertificate(params.Cert, params.TopologyName)
+	if err != nil {
+		return nil
+	}
+	return nodes.LoadStartupConfigFileVr(s, configDirName, startupCfgFName)
+}
+
+func (n *vrC8000v) SaveConfig(_ context.Context) error {
+	err := netconf.SaveConfig(n.Cfg.LongName,
+		defaultCredentials.GetUsername(),
+		defaultCredentials.GetPassword(),
+		scrapliPlatformName,
+	)
+	if err != nil {
+		return err
+	}
+
+	log.Infof("saved %s running configuration to startup configuration file\n", n.Cfg.ShortName)
+	return nil
+}
+
+// CheckInterfaceName checks if a name of the interface referenced in the topology file correct.
+func (n *vrC8000v) CheckInterfaceName() error {
+	return nodes.GenericVMInterfaceCheck(n.Cfg.ShortName, n.Endpoints)
+}