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ApplicationStatusUpdateHandler.go
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/
ApplicationStatusUpdateHandler.go
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/*
* Copyright (c) 2020 Devtron Labs
*
* 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 pubsub
import (
"encoding/json"
v1alpha12 "github.com/argoproj/argo-cd/pkg/apis/application/v1alpha1"
"github.com/devtron-labs/devtron/client/pubsub"
"github.com/devtron-labs/devtron/pkg/app"
"github.com/devtron-labs/devtron/pkg/pipeline"
"github.com/nats-io/stan.go"
"go.uber.org/zap"
"time"
)
type ApplicationStatusUpdateHandler interface {
Subscribe() error
}
type ApplicationStatusUpdateHandlerImpl struct {
logger *zap.SugaredLogger
pubsubClient *pubsub.PubSubClient
appService app.AppService
workflowDagExecutor pipeline.WorkflowDagExecutor
}
const applicationStatusUpdate = "APPLICATION_STATUS_UPDATE"
const applicationStatusUpdateGroup = "APPLICATION_STATUS_UPDATE_GROUP-1"
const applicationStatusUpdateDurable = "APPLICATION_STATUS_UPDATE_DURABLE-1"
func NewApplicationStatusUpdateHandlerImpl(logger *zap.SugaredLogger, pubsubClient *pubsub.PubSubClient, appService app.AppService,
workflowDagExecutor pipeline.WorkflowDagExecutor) *ApplicationStatusUpdateHandlerImpl {
appStatusUpdateHandlerImpl := &ApplicationStatusUpdateHandlerImpl{
logger: logger,
pubsubClient: pubsubClient,
appService: appService,
workflowDagExecutor: workflowDagExecutor,
}
err := appStatusUpdateHandlerImpl.Subscribe()
if err != nil {
logger.Error("err", err)
return nil
}
return appStatusUpdateHandlerImpl
}
func (impl *ApplicationStatusUpdateHandlerImpl) Subscribe() error {
_, err := impl.pubsubClient.Conn.QueueSubscribe(applicationStatusUpdate, applicationStatusUpdateGroup, func(msg *stan.Msg) {
impl.logger.Debug("received app update request")
defer msg.Ack()
application := v1alpha12.Application{}
err := json.Unmarshal([]byte(string(msg.Data)), &application)
if err != nil {
impl.logger.Errorw("unmarshal error on app update status", "err", err)
return
}
impl.logger.Infow("app update request", "application", application)
isHealthy, err := impl.appService.UpdateApplicationStatusAndCheckIsHealthy(application)
if err != nil {
impl.logger.Errorw("error on application status update", "err", err, "msg", string(msg.Data))
return
}
// invoke DagExecutor, for cd success which will trigger post stage if exist.
if isHealthy == true {
impl.logger.Debugw("git hash history", "list", application.Status.History)
var gitHash string
if application.Operation != nil && application.Operation.Sync != nil {
gitHash = application.Operation.Sync.Revision
} else if application.Status.OperationState != nil && application.Status.OperationState.Operation.Sync != nil {
gitHash = application.Status.OperationState.Operation.Sync.Revision
}
err = impl.workflowDagExecutor.HandleDeploymentSuccessEvent(gitHash)
if err != nil {
impl.logger.Errorw("success event error", "gitHash", gitHash, "err", err)
return
}
}
impl.logger.Debug("app" + application.Name + " updated")
}, stan.DurableName(applicationStatusUpdateDurable), stan.StartWithLastReceived(), stan.AckWait(time.Duration(impl.pubsubClient.AckDuration)*time.Second), stan.SetManualAckMode(), stan.MaxInflight(1))
if err != nil {
impl.logger.Error(err)
return err
}
return nil
}