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ovn.go
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// Copyright 2018 Paul Greenberg ([email protected])
//
// 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 ovsdb
import (
"fmt"
//"github.com/davecgh/go-spew/spew"
)
// OvnClient holds connection to all OVN databases.
type OvnClient struct {
Database struct {
Northbound OvsDatabase
Southbound OvsDatabase
Vswitch OvsDatabase
}
Service struct {
Northd OvsDaemon
Vswitchd OvsDaemon
}
Timeout int
System struct {
ID string
RunDir string
Hostname string
Type string
Version string
}
}
// NewOvnClient creates an instance of a client for OVN stack.
func NewOvnClient() *OvnClient {
cli := OvnClient{}
cli.Timeout = 2
cli.System.ID = "unknown"
cli.System.RunDir = "/var/run/openvswitch"
cli.System.Hostname = "localhost"
cli.System.Type = "unknown"
cli.System.Version = "unknown"
cli.Database.Vswitch.Process.ID = 0
cli.Database.Vswitch.Process.User = "openvswitch"
cli.Database.Vswitch.Process.Group = "openvswitch"
cli.Database.Vswitch.Version = "unknown"
cli.Database.Vswitch.Schema.Version = "unknown"
cli.Database.Vswitch.Name = "Open_vSwitch"
cli.Database.Vswitch.Socket.Remote = "unix:/var/run/openvswitch/db.sock"
cli.Database.Vswitch.Socket.Control = fmt.Sprintf("unix:/var/run/openvswitch/ovsdb-server.%d.ctl", cli.Database.Vswitch.Process.ID)
cli.Database.Vswitch.File.Data.Path = "/etc/openvswitch/conf.db"
cli.Database.Vswitch.File.Log.Path = "/var/log/openvswitch/ovsdb-server.log"
cli.Database.Vswitch.File.Pid.Path = "/var/run/openvswitch/ovsdb-server.pid"
cli.Database.Vswitch.File.SystemID.Path = "/etc/openvswitch/system-id.conf"
cli.Database.Vswitch.Port.Default = 6640
cli.Database.Vswitch.Port.Ssl = 6630
cli.Database.Northbound.Name = "OVN_Northbound"
cli.Database.Northbound.Socket.Remote = "unix:/run/openvswitch/ovnnb_db.sock"
cli.Database.Northbound.Socket.Control = "unix:/run/openvswitch/ovnnb_db.ctl"
cli.Database.Northbound.File.Data.Path = "/var/lib/openvswitch/ovnnb_db.db"
cli.Database.Northbound.File.Log.Path = "/var/log/openvswitch/ovsdb-server-nb.log"
cli.Database.Northbound.File.Pid.Path = "/run/openvswitch/ovnnb_db.pid"
cli.Database.Northbound.Process.ID = 0
cli.Database.Northbound.Process.User = "openvswitch"
cli.Database.Northbound.Process.Group = "openvswitch"
cli.Database.Northbound.Port.Default = 6641
cli.Database.Northbound.Port.Ssl = 6631
cli.Database.Northbound.Port.Raft = 6643
cli.Database.Southbound.Name = "OVN_Southbound"
cli.Database.Southbound.Socket.Remote = "unix:/run/openvswitch/ovnsb_db.sock"
cli.Database.Southbound.Socket.Control = "unix:/run/openvswitch/ovnsb_db.ctl"
cli.Database.Southbound.File.Data.Path = "/var/lib/openvswitch/ovnsb_db.db"
cli.Database.Southbound.File.Log.Path = "/var/log/openvswitch/ovsdb-server-sb.log"
cli.Database.Southbound.File.Pid.Path = "/run/openvswitch/ovnsb_db.pid"
cli.Database.Southbound.Process.ID = 0
cli.Database.Southbound.Process.User = "openvswitch"
cli.Database.Southbound.Process.Group = "openvswitch"
cli.Database.Southbound.Port.Default = 6642
cli.Database.Southbound.Port.Ssl = 6632
cli.Database.Southbound.Port.Raft = 6644
cli.Service.Vswitchd.Process.ID = 0
cli.Service.Vswitchd.Process.User = "openvswitch"
cli.Service.Vswitchd.Process.Group = "openvswitch"
cli.Service.Vswitchd.File.Log.Path = "/var/log/openvswitch/ovs-vswitchd.log"
cli.Service.Vswitchd.File.Pid.Path = "/var/run/openvswitch/ovs-vswitchd.pid"
cli.Service.Vswitchd.Socket.Control = fmt.Sprintf("unix:/var/run/openvswitch/ovs-vswitchd.%d.ctl", cli.Service.Vswitchd.Process.ID)
cli.Service.Northd.Process.ID = 0
cli.Service.Northd.Process.User = "openvswitch"
cli.Service.Northd.Process.Group = "openvswitch"
cli.Service.Northd.File.Log.Path = "/var/log/openvswitch/ovn-northd.log"
cli.Service.Northd.File.Pid.Path = "/run/openvswitch/ovn-northd.pid"
cli.Service.Northd.Socket.Control = fmt.Sprintf("unix:/var/run/openvswitch/ovn-northd.%d.ctl", cli.Service.Northd.Process.ID)
return &cli
}
// Connect initiates connections to OVN databases.
func (cli *OvnClient) Connect() error {
errMsgs := []string{}
if cli.Database.Vswitch.Client == nil {
ovs, err := NewClient(cli.Database.Vswitch.Socket.Remote, cli.Timeout)
cli.Database.Vswitch.Client = &ovs
if err != nil {
cli.Database.Vswitch.Client.closed = true
errMsgs = append(errMsgs, fmt.Sprintf("failed connecting to %s via %s: %s", cli.Database.Vswitch.Name, cli.Database.Vswitch.Socket.Remote, err))
}
}
if cli.Database.Northbound.Client == nil {
nb, err := NewClient(cli.Database.Northbound.Socket.Remote, cli.Timeout)
cli.Database.Northbound.Client = &nb
if err != nil {
cli.Database.Northbound.Client.closed = true
errMsgs = append(errMsgs, fmt.Sprintf("failed connecting to %s via %s: %s", cli.Database.Northbound.Name, cli.Database.Northbound.Socket.Remote, err))
}
}
if cli.Database.Southbound.Client == nil {
sb, err := NewClient(cli.Database.Southbound.Socket.Remote, cli.Timeout)
cli.Database.Southbound.Client = &sb
if err != nil {
cli.Database.Southbound.Client.closed = true
errMsgs = append(errMsgs, fmt.Sprintf("failed connecting to %s via %s: %s", cli.Database.Southbound.Name, cli.Database.Southbound.Socket.Remote, err))
}
}
if len(errMsgs) > 0 {
return fmt.Errorf("%s", errMsgs)
}
return nil
}
// Close closes connections to OVN databases.
func (cli *OvnClient) Close() {
if cli.Database.Southbound.Client != nil {
cli.Database.Southbound.Client.Close()
}
if cli.Database.Northbound.Client != nil {
cli.Database.Northbound.Client.Close()
}
if cli.Database.Vswitch.Client != nil {
cli.Database.Vswitch.Client.Close()
}
}
func (cli *OvnClient) updateRefs() {
cli.Database.Vswitch.Socket.Control = fmt.Sprintf("unix:/var/run/openvswitch/ovsdb-server.%d.ctl", cli.Database.Vswitch.Process.ID)
cli.Service.Vswitchd.Socket.Control = fmt.Sprintf("unix:/var/run/openvswitch/ovs-vswitchd.%d.ctl", cli.Service.Vswitchd.Process.ID)
cli.Service.Northd.Socket.Control = fmt.Sprintf("unix:/var/run/openvswitch/ovn-northd.%d.ctl", cli.Service.Northd.Process.ID)
}