/
sync.go
184 lines (158 loc) · 4.72 KB
/
sync.go
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/*
* Copyright © 2018 mritd <mritd1234@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package gcrsync
import (
"context"
"net/http"
"net/url"
"sync"
"time"
"github.com/docker/docker/client"
"github.com/sirupsen/logrus"
"github.com/mritd/gcrsync/pkg/utils"
)
const (
ChangeLog = "CHANGELOG-%s.md"
GcrRegistryTpl = "gcr.io/%s/%s"
GcrImages = "https://gcr.io/v2/%s/tags/list"
GcrImageTags = "https://gcr.io/v2/%s/%s/tags/list"
DockerHubImage = "https://hub.docker.com/v2/repositories/%s/?page_size=100"
DockerHubTags = "https://hub.docker.com/v2/repositories/%s/%s/tags/?page_size=100"
)
func (g *Gcr) Sync() {
gcrImages := g.gcrImageList()
dockerHubImages := g.dockerHubImageList()
needSyncImages := utils.SliceDiff(gcrImages, dockerHubImages)
logrus.Infof("Google container registry images total: %d", len(gcrImages))
logrus.Infof("Docker hub images total: %d", len(dockerHubImages))
logrus.Infof("Number of images waiting to be processed: %d", len(needSyncImages))
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
go func() {
if g.SyncTimeOut != 0 {
select {
case <-time.After(g.SyncTimeOut):
cancel()
}
}
}()
processWg := new(sync.WaitGroup)
processWg.Add(len(needSyncImages))
for _, imageName := range needSyncImages {
tmpImageName := imageName
go func() {
defer func() {
g.ProcessLimit <- 1
processWg.Done()
}()
select {
case <-g.ProcessLimit:
g.Process(tmpImageName)
case <-ctx.Done():
}
}()
}
// doc gen
chgWg := new(sync.WaitGroup)
chgWg.Add(1)
go func() {
defer chgWg.Done()
var images []string
for {
select {
case imageName, ok := <-g.update:
if ok {
images = append(images, imageName)
} else {
goto ChangeLogDone
}
case <-ctx.Done():
goto ChangeLogDone
}
}
ChangeLogDone:
if len(images) > 0 {
g.Commit(images)
}
}()
processWg.Wait()
close(g.update)
chgWg.Wait()
}
func (g *Gcr) Monitor() {
if g.MonitorCount == -1 {
for {
select {
case <-time.Tick(5 * time.Second):
gcrImages := g.gcrImageList()
dockerHubImages := g.dockerHubImageList()
needSyncImages := utils.SliceDiff(gcrImages, dockerHubImages)
logrus.Infof("Gcr images: %d | Docker hub images: %d | Waiting process: %d", len(gcrImages), len(dockerHubImages), len(needSyncImages))
}
}
} else {
for i := 0; i < g.MonitorCount; i++ {
select {
case <-time.Tick(5 * time.Second):
gcrImages := g.gcrImageList()
dockerHubImages := g.dockerHubImageList()
needSyncImages := utils.SliceDiff(gcrImages, dockerHubImages)
logrus.Infof("Gcr images: %d | Docker hub images: %d | Waiting process: %d", len(gcrImages), len(dockerHubImages), len(needSyncImages))
}
}
}
}
func (g *Gcr) Init() {
if g.Debug {
logrus.SetLevel(logrus.DebugLevel)
}
logrus.Infoln("Init http client.")
g.httpClient = &http.Client{
Timeout: g.HttpTimeOut,
}
if g.Proxy != "" {
p := func(_ *http.Request) (*url.URL, error) {
return url.Parse(g.Proxy)
}
g.httpClient.Transport = &http.Transport{Proxy: p}
}
logrus.Infoln("Init docker client.")
dockerClient, err := client.NewClientWithOpts(client.FromEnv, client.WithVersion("1.39"))
utils.CheckAndExit(err)
g.dockerClient = dockerClient
logrus.Infoln("Init limit channel.")
for i := 0; i < cap(g.QueryLimit); i++ {
g.QueryLimit <- 1
}
for i := 0; i < cap(g.ProcessLimit); i++ {
g.ProcessLimit <- 1
}
logrus.Infoln("Init update channel.")
g.update = make(chan string, 20)
logrus.Infoln("Init commit repo.")
if g.GithubToken == "" {
utils.ErrorExit("Github Token is blank!", 1)
}
g.commitURL = "https://" + g.GithubToken + "@github.com/" + g.GithubRepo + ".git"
g.Clone()
logrus.Infoln("Init success...")
}