/
proxy_binary_comp.go
136 lines (117 loc) · 3.52 KB
/
proxy_binary_comp.go
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// Copyright 2017 Istio Authors
//
// 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 proxy
import (
"flag"
"fmt"
"log"
"net"
"sync"
"time"
"istio.io/istio/tests/integration_old/framework"
)
const (
sideCarEndpoint = "http://localhost:9090/echo"
sideCarPort = "localhost:9090"
)
var (
envoyStartScript = flag.String("envoy_start_script", "", "start_envoy script")
envoyBinary = flag.String("envoy_binary", "", "Envoy binary path.")
lock sync.Mutex
)
// LocalCompConfig contains configs for LocalComponent
type LocalCompConfig struct {
framework.Config
LogFile string
}
// LocalCompStatus contains status for LocalComponent
type LocalCompStatus struct {
framework.Status
SideCarEndpoint string
}
// LocalComponent is a component of local proxy binary in process
type LocalComponent struct {
framework.Component
testProcess framework.TestProcess
name string
config LocalCompConfig
status LocalCompStatus
}
// NewLocalComponent create a LocalComponent with name and log dir
func NewLocalComponent(n string, config LocalCompConfig) *LocalComponent {
return &LocalComponent{
name: n,
config: config,
}
}
// GetName implement the function in component interface
func (proxyComp *LocalComponent) GetName() string {
return proxyComp.name
}
// GetConfig return the config for outside use
func (proxyComp *LocalComponent) GetConfig() framework.Config {
lock.Lock()
config := proxyComp.config
lock.Unlock()
return config
}
// SetConfig set a config into this component
func (proxyComp *LocalComponent) SetConfig(config framework.Config) error {
proxyConfig, ok := config.(LocalCompConfig)
if !ok {
return fmt.Errorf("cannot cast config into proxy local config")
}
lock.Lock()
proxyComp.config = proxyConfig
lock.Unlock()
return nil
}
// GetStatus return the status for outside use
func (proxyComp *LocalComponent) GetStatus() framework.Status {
lock.Lock()
status := proxyComp.status
lock.Unlock()
return status
}
// Start brings up a local envoy using start_envory script from istio/proxy
func (proxyComp *LocalComponent) Start() (err error) {
if err = proxyComp.testProcess.Start(fmt.Sprintf("%s -e %s > %s 2>&1",
*envoyStartScript, *envoyBinary, proxyComp.config.LogFile)); err != nil {
return
}
lock.Lock()
proxyComp.status.SideCarEndpoint = sideCarEndpoint
lock.Unlock()
// TODO: Find more reliable way to tell if local components are ready to serve
time.Sleep(3 * time.Second)
log.Printf("Started component %s", proxyComp.GetName())
return
}
// IsAlive check the process of local proxy is listening on port.
func (proxyComp *LocalComponent) IsAlive() (bool, error) {
isRunning, err := proxyComp.testProcess.IsRunning()
if !isRunning || err != nil {
return isRunning, err
}
_, err = net.Dial("tcp", sideCarPort)
if err == nil {
return true, err
}
return false, err
}
// Stop stop this local component by kill the process
func (proxyComp *LocalComponent) Stop() (err error) {
log.Printf("Stopping component %s", proxyComp.GetName())
return proxyComp.testProcess.Stop()
}