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deploy.go
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deploy.go
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package cmd
import (
"context"
"fmt"
"path/filepath"
"reflect"
"strings"
"sync"
"time"
"github.com/dustin/go-humanize"
"github.com/logrusorgru/aurora"
"github.com/morikuni/aec"
"github.com/pkg/errors"
"github.com/superfly/flyctl/api"
"github.com/superfly/flyctl/client"
"github.com/superfly/flyctl/cmd/presenters"
"github.com/superfly/flyctl/cmdctx"
"github.com/superfly/flyctl/internal/build/imgsrc"
"github.com/superfly/flyctl/internal/cmdfmt"
"github.com/superfly/flyctl/internal/cmdutil"
"github.com/superfly/flyctl/internal/deployment"
"github.com/superfly/flyctl/internal/env"
"github.com/superfly/flyctl/internal/flyerr"
"github.com/superfly/flyctl/internal/spinner"
"github.com/superfly/flyctl/logs"
"github.com/superfly/flyctl/terminal"
"golang.org/x/sync/errgroup"
)
func runDeploy(cmdCtx *cmdctx.CmdContext) error {
ctx := client.NewContext(cmdCtx.Command.Context(), cmdCtx.Client)
cmdCtx.Status("deploy", cmdctx.STITLE, "Deploying", cmdCtx.AppName)
cmdfmt.PrintBegin(cmdCtx.Out, "Validating app configuration")
if cmdCtx.AppConfig == nil {
cfg, err := cmdCtx.Client.API().GetConfig(ctx, cmdCtx.AppName)
if err != nil {
return fmt.Errorf("unable to fetch existing configuration file: %s", err)
}
cmdCtx.AppConfig.Definition = cfg.Definition
}
if extraEnv := cmdCtx.Config.GetStringSlice("env"); len(extraEnv) > 0 {
parsedEnv, err := cmdutil.ParseKVStringsToMap(cmdCtx.Config.GetStringSlice("env"))
if err != nil {
return errors.Wrap(err, "invalid env")
}
cmdCtx.AppConfig.SetEnvVariables(parsedEnv)
}
parsedCfg, err := cmdCtx.Client.API().ParseConfig(ctx, cmdCtx.AppName, cmdCtx.AppConfig.Definition)
if err != nil {
if parsedCfg == nil {
// No error data has been returned
return fmt.Errorf("not possible to validate configuration: server returned %s", err)
}
for _, error := range parsedCfg.Errors {
// fmt.Println(" ", aurora.Red("✘").String(), error)
cmdCtx.Status("deploy", cmdctx.SERROR, " ", aurora.Red("✘").String(), error)
}
return err
}
cmdCtx.AppConfig.Definition = parsedCfg.Definition
cmdfmt.PrintDone(cmdCtx.Out, "Validating app configuration done")
if parsedCfg.Valid && len(parsedCfg.Services) > 0 {
cmdfmt.PrintServicesList(cmdCtx.IO, parsedCfg.Services)
}
daemonType := imgsrc.NewDockerDaemonType(!cmdCtx.Config.GetBool("remote-only"), !cmdCtx.Config.GetBool("local-only"), env.IsCI(), cmdCtx.Config.GetBool("nixpacks"))
resolver := imgsrc.NewResolver(daemonType, cmdCtx.Client.API(), cmdCtx.AppName, cmdCtx.IO)
var img *imgsrc.DeploymentImage
var imageRef string
if ref := cmdCtx.Config.GetString("image"); ref != "" {
imageRef = ref
} else if ref := cmdCtx.AppConfig.Image(); ref != "" {
imageRef = ref
}
if imageRef != "" {
opts := imgsrc.RefOptions{
AppName: cmdCtx.AppName,
WorkingDir: cmdCtx.WorkingDir,
Publish: !cmdCtx.Config.GetBool("build-only"),
ImageRef: imageRef,
ImageLabel: cmdCtx.Config.GetString("image-label"),
}
img, err = resolver.ResolveReference(ctx, cmdCtx.IO, opts)
if err != nil {
return err
}
} else {
var buildArgs map[string]string
opts := imgsrc.ImageOptions{
AppName: cmdCtx.AppName,
WorkingDir: cmdCtx.WorkingDir,
Publish: !cmdCtx.Config.GetBool("build-only"),
ImageLabel: cmdCtx.Config.GetString("image-label"),
NoCache: cmdCtx.Config.GetBool("no-cache"),
}
if cmdCtx.AppConfig.Build != nil {
opts.BuiltIn = cmdCtx.AppConfig.Build.Builtin
opts.BuiltInSettings = cmdCtx.AppConfig.Build.Settings
opts.Builder = cmdCtx.AppConfig.Build.Builder
opts.Buildpacks = cmdCtx.AppConfig.Build.Buildpacks
if cmdCtx.AppConfig.Build.Args != nil {
buildArgs = cmdCtx.AppConfig.Build.Args
}
}
cliBuildArgs, err := cmdutil.ParseKVStringsToMap(cmdCtx.Config.GetStringSlice("build-arg"))
if err != nil {
return errors.Wrap(err, "invalid build-arg")
}
for k, v := range cliBuildArgs {
buildArgs[k] = v
}
opts.BuildArgs = buildArgs
if dockerfilePath := cmdCtx.Config.GetString("dockerfile"); dockerfilePath != "" {
dockerfilePath, err := filepath.Abs(dockerfilePath)
if err != nil {
return err
}
opts.DockerfilePath = dockerfilePath
} else if dockerfilePath := cmdCtx.AppConfig.Dockerfile(); dockerfilePath != "" {
opts.DockerfilePath = filepath.Join(filepath.Dir(cmdCtx.ConfigFile), dockerfilePath)
}
if dockerBuildTarget := cmdCtx.Config.GetString("build-target"); dockerBuildTarget != "" {
opts.Target = dockerBuildTarget
} else if dockerBuildTarget := cmdCtx.AppConfig.DockerBuildTarget(); dockerBuildTarget != "" {
opts.Target = dockerBuildTarget
}
img, err = resolver.BuildImage(ctx, cmdCtx.IO, opts)
if err != nil {
return err
}
if img == nil {
return errors.New("could not find an image to deploy")
}
}
if img == nil {
return errors.New("could not find an image to deploy")
}
fmt.Fprintf(cmdCtx.Client.IO.Out, "Image: %s\n", img.Tag)
fmt.Fprintf(cmdCtx.Client.IO.Out, "Image size: %s\n", humanize.Bytes(uint64(img.Size)))
if cmdCtx.Config.GetBool("build-only") {
return nil
}
cmdfmt.PrintBegin(cmdCtx.Out, "Creating release")
input := api.DeployImageInput{
AppID: cmdCtx.AppName,
Image: img.Tag,
}
if val := cmdCtx.Config.GetString("strategy"); val != "" {
input.Strategy = api.StringPointer(strings.ToUpper(val))
}
if cmdCtx.AppConfig != nil && len(cmdCtx.AppConfig.Definition) > 0 {
input.Definition = api.DefinitionPtr(cmdCtx.AppConfig.Definition)
}
release, releaseCommand, err := cmdCtx.Client.API().DeployImage(ctx, input)
if err != nil {
return err
}
fmt.Fprintf(cmdCtx.Out, "Release v%d created\n", release.Version)
if releaseCommand != nil {
fmt.Fprintf(cmdCtx.Out, "Release command detected: this new release will not be available until the command succeeds.\n")
}
if cmdCtx.Config.GetBool("detach") {
return nil
}
fmt.Println()
cmdCtx.Status("deploy", cmdctx.SDETAIL, "You can detach the terminal anytime without stopping the deployment")
if releaseCommand != nil {
cmdfmt.PrintBegin(cmdCtx.Out, "Release command")
fmt.Printf("Command: %s\n", releaseCommand.Command)
err = watchReleaseCommand(ctx, cmdCtx, cmdCtx.Client.API(), releaseCommand.ID)
if err != nil {
return err
}
release, err = cmdCtx.Client.API().GetAppRelease(ctx, cmdCtx.AppName, release.ID)
if err != nil {
return err
}
}
if release.DeploymentStrategy == "IMMEDIATE" {
terminal.Debug("immediate deployment strategy, nothing to monitor")
return nil
}
return watchDeployment(ctx, cmdCtx, release.EvaluationID)
}
func watchReleaseCommand(ctx context.Context, cc *cmdctx.CmdContext, apiClient *api.Client, id string) error {
g, ctx := errgroup.WithContext(ctx)
interactive := cc.IO.IsInteractive()
s := spinner.Run(cc.IO, "Running release task...")
defer s.Stop()
rcUpdates := make(chan api.ReleaseCommand)
var once sync.Once
startLogs := func(ctx context.Context, vmid string) {
once.Do(func() {
g.Go(func() error {
childCtx, cancel := context.WithCancel(ctx)
defer cancel()
opts := &logs.LogOptions{MaxBackoff: 1 * time.Second, AppName: cc.AppName, VMID: vmid}
ls, err := logs.NewPollingStream(apiClient, opts)
if err != nil {
return err
}
for entry := range ls.Stream(childCtx, opts) {
msg := s.Stop()
fmt.Println("\t", entry.Message)
// watch for the shutdown message
if entry.Message == "Starting clean up." {
cancel()
}
s.StartWithMessage(msg)
}
if err = ls.Err(); (errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded)) && ctx.Err() == nil {
err = nil
}
return err
})
})
}
g.Go(func() error {
var lastValue *api.ReleaseCommand
var errorCount int
defer close(rcUpdates)
for {
rc, err := apiClient.GetReleaseCommand(ctx, id)
if err != nil {
errorCount += 1
if errorCount < 3 {
continue
}
return err
}
if !reflect.DeepEqual(lastValue, rc) {
lastValue = rc
rcUpdates <- *rc
}
if !rc.InProgress {
break
}
time.Sleep(500 * time.Millisecond)
}
return nil
})
g.Go(func() error {
// The logs goroutine will stop itself when it sees a shutdown log message.
// If the message never comes (delayed logs, etc) the deploy will hang.
// This timeout makes sure they always stop a few seconds after the release task is done.
logsCtx, logsCancel := context.WithCancel(ctx)
defer time.AfterFunc(3*time.Second, logsCancel)
for rc := range rcUpdates {
msg := fmt.Sprintf("Running release task (%s)...", rc.Status)
s.Set(msg)
if rc.InstanceID != nil {
startLogs(logsCtx, *rc.InstanceID)
}
if !rc.InProgress && rc.Failed {
if rc.Succeeded && interactive {
s.StopWithMessage("Running release task... Done.")
} else if rc.Failed {
return errors.New("Release command failed, deployment aborted")
}
}
}
return nil
})
return g.Wait()
}
func watchDeployment(ctx context.Context, cmdCtx *cmdctx.CmdContext, evaluationID string) error {
cmdCtx.Status("deploy", cmdctx.STITLE, "Monitoring Deployment")
interactive := cmdCtx.IO.IsInteractive()
endmessage := ""
monitor := deployment.NewDeploymentMonitor(cmdCtx.Client.API(), cmdCtx.AppName, evaluationID)
monitor.DeploymentStarted = func(idx int, d *api.DeploymentStatus) error {
if idx > 0 {
cmdCtx.StatusLn()
}
cmdCtx.Status("deploy", cmdctx.SINFO, presenters.FormatDeploymentSummary(d))
return nil
}
monitor.DeploymentUpdated = func(d *api.DeploymentStatus, updatedAllocs []*api.AllocationStatus) error {
if interactive && !cmdCtx.OutputJSON() {
fmt.Fprint(cmdCtx.Out, aec.Up(1))
fmt.Fprint(cmdCtx.Out, aec.EraseLine(aec.EraseModes.All))
fmt.Fprintln(cmdCtx.Out, presenters.FormatDeploymentAllocSummary(d))
} else {
for _, alloc := range updatedAllocs {
cmdCtx.Status("deploy", cmdctx.SINFO, presenters.FormatAllocSummary(alloc))
}
}
return nil
}
monitor.DeploymentFailed = func(d *api.DeploymentStatus, failedAllocs []*api.AllocationStatus) error {
cmdCtx.Statusf("deploy", cmdctx.SDETAIL, "v%d %s - %s\n", d.Version, d.Status, d.Description)
if endmessage == "" && d.Status == "failed" {
if strings.Contains(d.Description, "no stable release to revert to") {
endmessage = fmt.Sprintf("v%d %s - %s\n", d.Version, d.Status, d.Description)
} else {
endmessage = fmt.Sprintf("v%d %s - %s and deploying as v%d \n", d.Version, d.Status, d.Description, d.Version+1)
}
}
if len(failedAllocs) > 0 {
cmdCtx.Status("deploy", cmdctx.STITLE, "Failed Instances")
x := make(chan *api.AllocationStatus)
var wg sync.WaitGroup
wg.Add(len(failedAllocs))
for _, a := range failedAllocs {
a := a
go func() {
defer wg.Done()
alloc, err := cmdCtx.Client.API().GetAllocationStatus(ctx, cmdCtx.AppName, a.ID, 30)
if err != nil {
cmdCtx.Status("deploy", cmdctx.SERROR, "Error fetching alloc", a.ID, err)
return
}
x <- alloc
}()
}
go func() {
wg.Wait()
close(x)
}()
count := 0
for alloc := range x {
count++
cmdCtx.StatusLn()
cmdCtx.Statusf("deploy", cmdctx.SBEGIN, "Failure #%d\n", count)
cmdCtx.StatusLn()
err := cmdCtx.Frender(
cmdctx.PresenterOption{
Title: "Instance",
Presentable: &presenters.Allocations{
Allocations: []*api.AllocationStatus{alloc},
},
Vertical: true,
},
cmdctx.PresenterOption{
Title: "Recent Events",
Presentable: &presenters.AllocationEvents{
Events: alloc.Events,
},
},
)
if err != nil {
return err
}
cmdCtx.Status("deploy", cmdctx.STITLE, "Recent Logs")
logPresenter := presenters.LogPresenter{HideAllocID: true, HideRegion: true, RemoveNewlines: true}
for _, e := range alloc.RecentLogs {
entry := logs.LogEntry{
Instance: e.Instance,
Level: e.Level,
Message: e.Message,
Region: e.Region,
Timestamp: e.Timestamp,
Meta: e.Meta,
}
logPresenter.FPrint(cmdCtx.Out, cmdCtx.OutputJSON(), entry)
}
}
}
return nil
}
monitor.DeploymentSucceeded = func(d *api.DeploymentStatus) error {
cmdCtx.Statusf("deploy", cmdctx.SDONE, "v%d deployed successfully\n", d.Version)
return nil
}
monitor.Start(ctx)
if err := monitor.Error(); err != nil {
return err
}
if endmessage != "" {
cmdCtx.Status("deploy", cmdctx.SERROR, endmessage)
}
if !monitor.Success() {
cmdCtx.Status("deploy", cmdctx.SINFO, "Troubleshooting guide at https://fly.io/docs/getting-started/troubleshooting/")
return flyerr.ErrAbort
}
return nil
}