forked from coop-cloud/abra
WIP: add first run at app rollback command
See coop-cloud/organising#146.
This commit is contained in:
parent
855e9ea26d
commit
3c3d8dc0e7
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@ -92,25 +92,6 @@ var appNewCommand = &cli.Command{
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},
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}
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// getRecipeMeta retrieves the recipe metadata from the recipe catalogue.
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func getRecipeMeta(recipeName string) (catalogue.RecipeMeta, error) {
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catl, err := catalogue.ReadRecipeCatalogue()
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if err != nil {
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return catalogue.RecipeMeta{}, err
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}
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recipeMeta, ok := catl[recipeName]
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if !ok {
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err := fmt.Errorf("recipe '%s' does not exist?", recipeName)
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return catalogue.RecipeMeta{}, err
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}
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if err := recipePkg.EnsureExists(recipeName); err != nil {
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return catalogue.RecipeMeta{}, err
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}
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return recipeMeta, nil
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}
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// ensureDomainFlag checks if the domain flag was used. if not, asks the user for it/
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func ensureDomainFlag() error {
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if domain == "" {
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@ -190,7 +171,7 @@ func action(c *cli.Context) error {
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logrus.Fatal(err)
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}
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recipeMeta, err := getRecipeMeta(recipe.Name)
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recipeMeta, err := catalogue.GetRecipeMeta(recipe.Name)
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if err != nil {
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logrus.Fatal(err)
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}
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@ -3,19 +3,27 @@ package app
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import (
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"fmt"
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"context"
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"coopcloud.tech/abra/pkg/config"
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"coopcloud.tech/abra/cli/internal"
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appPkg "coopcloud.tech/abra/pkg/app"
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"coopcloud.tech/abra/pkg/catalogue"
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"coopcloud.tech/abra/pkg/client"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli/v2"
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)
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var appRollbackCommand = &cli.Command{
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Name: "rollback",
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Usage: "Roll an app back to a previous version",
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Aliases: []string{"b"},
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Aliases: []string{"r"},
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ArgsUsage: "[<version>]",
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BashComplete: func(c *cli.Context) {
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appNames, err := config.GetAppNames()
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if err != nil {
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return
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logrus.Warn(err)
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}
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if c.NArg() > 0 {
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return
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@ -24,4 +32,49 @@ var appRollbackCommand = &cli.Command{
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fmt.Println(a)
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}
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},
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Action: func(c *cli.Context) error {
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app := internal.ValidateApp(c)
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ctx := context.Background()
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cl, err := client.New(app.Server)
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if err != nil {
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logrus.Fatal(err)
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}
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recipeMeta, err := catalogue.GetRecipeMeta(app.Type)
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if err != nil {
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logrus.Fatal(err)
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}
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if len(recipeMeta.Versions) == 0 {
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logrus.Fatalf("no catalogue versions available for '%s'", app.Type)
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}
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deployedVersions, isDeployed, err := appPkg.DeployedVersions(ctx, cl, app)
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if err != nil {
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logrus.Fatal(err)
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}
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if !isDeployed {
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logrus.Fatalf("'%s' is not deployed?", app.Name)
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}
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if _, exists := deployedVersions["app"]; !exists {
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logrus.Fatalf("no versioned 'app' service for '%s', cannot determine version", app.Name)
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}
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version := c.Args().Get(1)
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if version == "" {
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// TODO:
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// using deployedVersions["app"], get index+1 version from catalogue
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// otherwise bail out saying there is nothing to rollback to
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} else {
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// TODO
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// ensure this version is listed in the catalogue
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// ensure this version is "older" (lower down in the list)
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}
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// TODO
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// display table of existing state and expected state and prompt
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// run the deployment with this target version!
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return nil
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},
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}
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@ -7,6 +7,7 @@ import (
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abraFormatter "coopcloud.tech/abra/cli/formatter"
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"coopcloud.tech/abra/cli/internal"
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appPkg "coopcloud.tech/abra/pkg/app"
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"coopcloud.tech/abra/pkg/client/stack"
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"coopcloud.tech/abra/pkg/config"
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"github.com/docker/distribution/reference"
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@ -27,19 +28,6 @@ func getImagePath(image string) (string, error) {
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return path, nil
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}
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// parseVersionLabel parses a $STACK_NAME_$SERVICE_NAME service label
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func parseServiceName(label string) string {
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idx := strings.LastIndex(label, "_")
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return label[idx+1:]
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}
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// parseVersionLabel parses a $VERSION-$DIGEST service label
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func parseVersionLabel(label string) (string, string) {
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// versions may look like v4.2-abcd or v4.2-alpine-abcd
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idx := strings.LastIndex(label, "-")
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return label[:idx], label[idx+1:]
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}
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var appVersionCommand = &cli.Command{
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Name: "version",
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Aliases: []string{"v"},
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@ -72,7 +60,7 @@ var appVersionCommand = &cli.Command{
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for range compose.Services {
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status := <-ch
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if len(status.Services) > 0 {
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serviceName := parseServiceName(status.Services[0].Spec.Name)
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serviceName := appPkg.ParseServiceName(status.Services[0].Spec.Name)
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statuses[serviceName] = status
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}
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}
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@ -85,7 +73,7 @@ var appVersionCommand = &cli.Command{
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if status, ok := statuses[service.Name]; ok {
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statusService := status.Services[0]
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label := fmt.Sprintf("coop-cloud.%s.%s.version", app.StackName(), service.Name)
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version, digest := parseVersionLabel(statusService.Spec.Labels[label])
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version, digest := appPkg.ParseVersionLabel(statusService.Spec.Labels[label])
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image, err := getImagePath(statusService.Spec.Labels["com.docker.stack.image"])
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if err != nil {
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logrus.Fatal(err)
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@ -2,7 +2,6 @@ package internal
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import (
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"errors"
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"os"
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"coopcloud.tech/abra/pkg/app"
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"coopcloud.tech/abra/pkg/config"
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@ -22,7 +21,6 @@ func ValidateRecipe(c *cli.Context) recipe.Recipe {
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recipe, err := recipe.Get(recipeName)
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if err != nil {
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logrus.Fatal(err)
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os.Exit(1)
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}
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return recipe
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@ -39,7 +37,6 @@ func ValidateApp(c *cli.Context) config.App {
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app, err := app.Get(appName)
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if err != nil {
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logrus.Fatal(err)
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os.Exit(1)
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}
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return app
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@ -1,7 +1,13 @@
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package app
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import (
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"context"
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"fmt"
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"strings"
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"coopcloud.tech/abra/pkg/client/stack"
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"coopcloud.tech/abra/pkg/config"
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apiclient "github.com/docker/docker/client"
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)
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// Get retrieves an app
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@ -18,3 +24,45 @@ func Get(appName string) (config.App, error) {
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return app, nil
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}
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// deployedServiceSpec represents a deployed service of an app.
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type deployedServiceSpec struct {
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Name string
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Version string
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}
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// VersionSpec represents a deployed app and associated metadata.
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type VersionSpec map[string]deployedServiceSpec
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// DeployedVersions lists metadata (e.g. versions) for deployed
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func DeployedVersions(ctx context.Context, cl *apiclient.Client, app config.App) (VersionSpec, bool, error) {
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services, err := stack.GetStackServices(ctx, cl, app.StackName())
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if err != nil {
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return VersionSpec{}, false, err
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}
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appSpec := make(VersionSpec)
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for _, service := range services {
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serviceName := ParseServiceName(service.Spec.Name)
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label := fmt.Sprintf("coop-cloud.%s.%s.version", app.StackName(), serviceName)
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if deployLabel, ok := service.Spec.Labels[label]; ok {
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version, _ := ParseVersionLabel(deployLabel)
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appSpec[serviceName] = deployedServiceSpec{Name: serviceName, Version: version}
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}
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}
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return appSpec, len(services) > 0, nil
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}
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// ParseVersionLabel parses a $VERSION-$DIGEST app service label.
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func ParseVersionLabel(label string) (string, string) {
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// versions may look like v4.2-abcd or v4.2-alpine-abcd
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idx := strings.LastIndex(label, "-")
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return label[:idx], label[idx+1:]
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}
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// ParseVersionName parses a $STACK_NAME_$SERVICE_NAME service label.
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func ParseServiceName(label string) string {
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idx := strings.LastIndex(label, "_")
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return label[idx+1:]
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}
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@ -13,6 +13,7 @@ import (
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"time"
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"coopcloud.tech/abra/pkg/config"
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"coopcloud.tech/abra/pkg/recipe"
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"coopcloud.tech/abra/pkg/web"
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)
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@ -212,3 +213,22 @@ func VersionsOfService(recipe, serviceName string) ([]string, error) {
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return versions, nil
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}
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// GetRecipeMeta retrieves the recipe metadata from the recipe catalogue.
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func GetRecipeMeta(recipeName string) (RecipeMeta, error) {
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catl, err := ReadRecipeCatalogue()
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if err != nil {
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return RecipeMeta{}, err
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}
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recipeMeta, ok := catl[recipeName]
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if !ok {
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err := fmt.Errorf("recipe '%s' does not exist?", recipeName)
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return RecipeMeta{}, err
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}
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if err := recipe.EnsureExists(recipeName); err != nil {
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return RecipeMeta{}, err
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}
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return recipeMeta, nil
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}
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@ -18,7 +18,7 @@ import (
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func RunRemove(ctx context.Context, client *apiclient.Client, opts Remove) error {
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var errs []string
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for _, namespace := range opts.Namespaces {
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services, err := getStackServices(ctx, client, namespace)
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services, err := GetStackServices(ctx, client, namespace)
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if err != nil {
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return err
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}
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@ -47,7 +47,7 @@ func getAllStacksFilter() filters.Args {
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return filter
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}
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func getStackServices(ctx context.Context, dockerclient client.APIClient, namespace string) ([]swarm.Service, error) {
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func GetStackServices(ctx context.Context, dockerclient client.APIClient, namespace string) ([]swarm.Service, error) {
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return dockerclient.ServiceList(ctx, types.ServiceListOptions{Filters: getStackServiceFilter(namespace)})
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}
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@ -94,7 +94,7 @@ func GetAllDeployedServices(contextName string) StackStatus {
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// pruneServices removes services that are no longer referenced in the source
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func pruneServices(ctx context.Context, cl *dockerclient.Client, namespace convert.Namespace, services map[string]struct{}) {
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oldServices, err := getStackServices(ctx, cl, namespace.Name())
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oldServices, err := GetStackServices(ctx, cl, namespace.Name())
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if err != nil {
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logrus.Infof("Failed to list services: %s\n", err)
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}
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@ -174,6 +174,7 @@ func deployCompose(ctx context.Context, cl *dockerclient.Client, opts Deploy, co
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if err != nil {
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return err
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}
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return deployServices(ctx, cl, services, namespace, opts.SendRegistryAuth, opts.ResolveImage)
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}
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@ -290,7 +291,7 @@ func deployServices(
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namespace convert.Namespace,
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sendAuth bool,
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resolveImage string) error {
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existingServices, err := getStackServices(ctx, cl, namespace.Name())
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existingServices, err := GetStackServices(ctx, cl, namespace.Name())
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if err != nil {
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return err
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}
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