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Add support for GCR #5
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
|
|
||
| "cloud.google.com/go/pubsub" | ||
| "github.com/gitops-tools/image-updater/pkg/applier" | ||
| "github.com/gitops-tools/image-updater/pkg/config" | ||
| "github.com/gitops-tools/image-updater/pkg/hooks/gcr" | ||
| "github.com/gitops-tools/image-updater/pkg/pubsubhandler" | ||
| "github.com/gitops-tools/pkg/client" | ||
| "github.com/go-logr/zapr" | ||
| "github.com/spf13/cobra" | ||
| "github.com/spf13/viper" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| const ( | ||
| projectIDFlag = "project-id" | ||
| subscriptionNameFlag = "subscription-name" | ||
| ) | ||
|
|
||
| type message struct { | ||
| data []byte | ||
| } | ||
|
|
||
| func (m *message) Ack() {} | ||
| func (m *message) Data() []byte { return m.data } | ||
|
|
||
| func makePubsubCmd() *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "pubsub", | ||
| Short: "update repositories in response to gcr pubsub events", | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| zapl, _ := zap.NewProduction() | ||
| defer func() { | ||
| _ = zapl.Sync() // flushes buffer, if any | ||
| }() | ||
| logger := zapr.NewLogger(zapl) | ||
| scmClient, err := createClientFromViper() | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create a git driver: %s", err) | ||
| } | ||
| f, err := os.Open(viper.GetString("config")) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer f.Close() | ||
| repos, err := config.Parse(f) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| applier := applier.New(logger, client.New(scmClient), repos) | ||
|
|
||
| sub, err := createSubscriptionFromViper() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| handler := pubsubhandler.New(logger, applier, gcr.Parse) | ||
|
|
||
| return sub.Receive(context.Background(), func(ctx context.Context, msg *pubsub.Message) { | ||
| handler.Handle(ctx, &message{ | ||
| data: msg.Data, | ||
| }) | ||
| }) | ||
| }, | ||
| } | ||
|
|
||
| cmd.Flags().String( | ||
| "config", | ||
| "/etc/image-updater/config.yaml", | ||
| "repository configuration", | ||
| ) | ||
| logIfError(viper.BindPFlag("config", cmd.Flags().Lookup("config"))) | ||
|
|
||
| cmd.Flags().String( | ||
| projectIDFlag, | ||
| "", | ||
| "GCP project ID", | ||
| ) | ||
| logIfError(viper.BindPFlag(projectIDFlag, cmd.Flags().Lookup(projectIDFlag))) | ||
| logIfError(cmd.MarkFlagRequired(projectIDFlag)) | ||
|
|
||
| cmd.Flags().String( | ||
| subscriptionNameFlag, | ||
| "", | ||
| "GCP subscription name", | ||
| ) | ||
| logIfError(viper.BindPFlag(subscriptionNameFlag, cmd.Flags().Lookup(subscriptionNameFlag))) | ||
| logIfError(cmd.MarkFlagRequired(subscriptionNameFlag)) | ||
|
|
||
| return cmd | ||
| } | ||
|
|
||
| func createSubscriptionFromViper() (*pubsub.Subscription, error) { | ||
| ctx := context.Background() | ||
| projectID := viper.GetString(projectIDFlag) | ||
| subscriptionName := viper.GetString(subscriptionNameFlag) | ||
|
|
||
| client, err := pubsub.NewClient(ctx, projectID) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| sub := client.Subscription(subscriptionName) | ||
| return sub, nil | ||
| } | ||
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I wonder if some of this code which is duplicated from the http command could be extracted and reused?