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vpp_agent.go
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/
vpp_agent.go
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// Copyright (c) 2018 Cisco and/or its affiliates.
//
// 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 app
import (
"sync"
"github.com/ligato/cn-infra/datasync"
"github.com/ligato/cn-infra/datasync/kvdbsync"
"github.com/ligato/cn-infra/datasync/kvdbsync/local"
"github.com/ligato/cn-infra/datasync/msgsync"
"github.com/ligato/cn-infra/datasync/resync"
"github.com/ligato/cn-infra/db/keyval/consul"
"github.com/ligato/cn-infra/db/keyval/etcd"
"github.com/ligato/cn-infra/db/keyval/redis"
"github.com/ligato/cn-infra/health/probe"
"github.com/ligato/cn-infra/logging/logmanager"
"github.com/ligato/cn-infra/messaging/kafka"
"github.com/ligato/vpp-agent/plugins/linux"
"github.com/ligato/vpp-agent/plugins/rest"
"github.com/ligato/vpp-agent/plugins/telemetry"
"github.com/ligato/vpp-agent/plugins/vpp"
"github.com/ligato/vpp-agent/plugins/vpp/rpc"
)
// VPPAgent defines plugins which will be loaded and their order.
// Note: the plugin itself is loaded after all its dependencies. It means that the VPP plugin is first in the list
// despite it needs to be loaded after the linux plugin.
type VPPAgent struct {
LogManager *logmanager.Plugin
ETCDDataSync *kvdbsync.Plugin
ConsulDataSync *kvdbsync.Plugin
RedisDataSync *kvdbsync.Plugin
VPP *vpp.Plugin
Linux *linux.Plugin
GRPCService *rpc.Plugin
RESTAPI *rest.Plugin
Probe *probe.Plugin
Telemetry *telemetry.Plugin
}
// New creates new VPPAgent instance.
func New() *VPPAgent {
etcdDataSync := kvdbsync.NewPlugin(kvdbsync.UseKV(&etcd.DefaultPlugin))
consulDataSync := kvdbsync.NewPlugin(kvdbsync.UseKV(&consul.DefaultPlugin))
redisDataSync := kvdbsync.NewPlugin(kvdbsync.UseKV(&redis.DefaultPlugin))
watcher := datasync.KVProtoWatchers{
local.Get(),
etcdDataSync,
consulDataSync,
}
publisher := datasync.KVProtoWriters{
etcdDataSync,
consulDataSync,
}
ifStatePub := msgsync.NewPlugin(
msgsync.UseMessaging(&kafka.DefaultPlugin),
msgsync.UseConf(msgsync.Config{
Topic: "if_state",
}),
)
vppPlugin := vpp.NewPlugin(vpp.UseDeps(func(deps *vpp.Deps) {
deps.Publish = publisher
deps.Watcher = watcher
deps.IfStatePub = ifStatePub
deps.DataSyncs = map[string]datasync.KeyProtoValWriter{
"etcd": etcdDataSync,
"redis": redisDataSync,
}
deps.GRPCSvc = &rpc.DefaultPlugin
}))
linuxPlugin := linux.NewPlugin(linux.UseDeps(func(deps *linux.Deps) {
deps.VPP = vppPlugin
deps.Watcher = watcher
}))
vppPlugin.Deps.Linux = linuxPlugin
var watchEventsMutex sync.Mutex
vppPlugin.Deps.WatchEventsMutex = &watchEventsMutex
linuxPlugin.Deps.WatchEventsMutex = &watchEventsMutex
restPlugin := rest.NewPlugin(rest.UseDeps(func(deps *rest.Deps) {
deps.VPP = vppPlugin
}))
return &VPPAgent{
LogManager: &logmanager.DefaultPlugin,
ETCDDataSync: etcdDataSync,
ConsulDataSync: consulDataSync,
RedisDataSync: redisDataSync,
VPP: vppPlugin,
Linux: linuxPlugin,
GRPCService: &rpc.DefaultPlugin,
RESTAPI: restPlugin,
Probe: &probe.DefaultPlugin,
Telemetry: &telemetry.DefaultPlugin,
}
}
// Init initializes main plugin.
func (VPPAgent) Init() error {
return nil
}
// AfterInit executes resync.
func (VPPAgent) AfterInit() error {
// manually start resync after all plugins started
resync.DefaultPlugin.DoResync()
return nil
}
// Close could close used resources.
func (VPPAgent) Close() error {
return nil
}
// String returns name of the plugin.
func (VPPAgent) String() string {
return "VPPAgent"
}