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app.go
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app.go
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package app
import (
"fmt"
"net/http"
"reflect"
"github.com/rancher/norman/api/access"
"github.com/rancher/norman/httperror"
"github.com/rancher/norman/parse"
"github.com/rancher/norman/types"
"github.com/rancher/norman/types/convert"
"github.com/rancher/norman/types/values"
"github.com/rancher/rancher/pkg/controllers/management/compose/common"
hcommon "github.com/rancher/rancher/pkg/controllers/user/helm/common"
"github.com/rancher/rancher/pkg/ref"
clusterschema "github.com/rancher/types/apis/cluster.cattle.io/v3/schema"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
pv3 "github.com/rancher/types/apis/project.cattle.io/v3"
projectschema "github.com/rancher/types/apis/project.cattle.io/v3/schema"
clusterv3 "github.com/rancher/types/client/cluster/v3"
projectv3 "github.com/rancher/types/client/project/v3"
"github.com/rancher/types/user"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type Wrapper struct {
Clusters v3.ClusterInterface
TemplateVersionClient v3.CatalogTemplateVersionInterface
KubeConfigGetter common.KubeConfigGetter
AppGetter pv3.AppsGetter
UserLister v3.UserLister
UserManager user.Manager
}
const (
appLabel = "io.cattle.field/appId"
MCappLabel = "mcapp"
creatorIDAnno = "field.cattle.io/creatorId"
)
func Formatter(apiContext *types.APIContext, resource *types.RawResource) {
mcappLabel := convert.ToString(values.GetValueN(resource.Values, "labels", MCappLabel))
if mcappLabel == "" {
resource.AddAction(apiContext, "upgrade")
resource.AddAction(apiContext, "rollback")
} else {
delete(resource.Links, "remove")
}
resource.Links["revision"] = apiContext.URLBuilder.Link("revision", resource)
if _, ok := resource.Values["status"]; ok {
if status, ok := resource.Values["status"].(map[string]interface{}); ok {
delete(status, "lastAppliedTemplate")
}
}
delete(resource.Values, "appliedFiles")
delete(resource.Values, "files")
}
func (w Wrapper) Validator(request *types.APIContext, schema *types.Schema, data map[string]interface{}) error {
externalID := convert.ToString(data["externalId"])
if externalID == "" {
return nil
}
templateVersionID, templateVersionNamespace, err := hcommon.ParseExternalID(externalID)
if err != nil {
return err
}
templateVersion, err := w.TemplateVersionClient.GetNamespaced(templateVersionNamespace, templateVersionID, metav1.GetOptions{})
if err != nil {
return err
}
targetNamespace := convert.ToString(data["targetNamespace"])
if templateVersion.Spec.RequiredNamespace != "" && templateVersion.Spec.RequiredNamespace != targetNamespace {
return httperror.NewAPIError(httperror.InvalidType, "template's requiredNamespace doesn't match catalog app's target namespace")
}
// in here access.ByID will only find namespace that is assigned to the current project
var ns clusterv3.Namespace
if err := access.ByID(request, &clusterschema.Version, clusterv3.NamespaceType, targetNamespace, &ns); err != nil {
return err
}
if ns.Name == "" {
return httperror.NewAPIError(httperror.InvalidReference, fmt.Sprintf("target namespace %v is not assigned to the current project %v", targetNamespace, data["projectId"]))
}
return nil
}
func (w Wrapper) ActionHandler(actionName string, action *types.Action, apiContext *types.APIContext) error {
var app projectv3.App
if err := access.ByID(apiContext, &projectschema.Version, projectv3.AppType, apiContext.ID, &app); err != nil {
return err
}
creatorNotFound := false
if _, err := w.UserLister.Get("", app.CreatorID); err != nil && apierrors.IsNotFound(err) {
creatorNotFound = true
}
userCanCreateApp := apiContext.AccessControl.CanCreate(apiContext, apiContext.Schema) == nil
if creatorNotFound && !userCanCreateApp {
return httperror.NewAPIError(httperror.PermissionDenied, "can not upgrade/rollback app")
}
actionInput, err := parse.ReadBody(apiContext.Request)
if err != nil {
return err
}
switch actionName {
case "upgrade":
externalID := actionInput["externalId"]
answers := actionInput["answers"]
forceUpgrade := actionInput["forceUpgrade"]
files := actionInput["files"]
valuesYaml := actionInput["valuesYaml"]
_, namespace := ref.Parse(app.ProjectID)
obj, err := w.AppGetter.Apps(namespace).Get(app.Name, metav1.GetOptions{})
if err != nil {
return err
}
if answers != nil {
m, ok := answers.(map[string]interface{})
if ok {
obj.Spec.Answers = make(map[string]string)
for k, v := range m {
obj.Spec.Answers[k] = convert.ToString(v)
}
}
} else {
obj.Spec.Answers = make(map[string]string)
}
obj.Spec.ExternalID = convert.ToString(externalID)
if convert.ToBool(forceUpgrade) {
pv3.AppConditionForceUpgrade.Unknown(obj)
}
if creatorNotFound {
obj.Annotations[creatorIDAnno] = w.UserManager.GetUser(apiContext)
}
if files != nil {
inputFiles := convert.ToMapInterface(files)
if len(inputFiles) != 0 {
targetFiles := make(map[string]string)
for k, v := range inputFiles {
targetFiles[k] = convert.ToString(v)
}
obj.Spec.Files = targetFiles
obj.Spec.ExternalID = "" // ignore externalID
}
}
if valuesYaml != nil {
obj.Spec.ValuesYaml = convert.ToString(valuesYaml)
} else {
obj.Spec.ValuesYaml = ""
}
// indicate this a user driven action
pv3.AppConditionUserTriggeredAction.True(obj)
if _, err := w.AppGetter.Apps(namespace).Update(obj); err != nil {
return err
}
apiContext.WriteResponse(http.StatusNoContent, map[string]interface{}{})
return nil
case "rollback":
forceUpgrade := actionInput["forceUpgrade"]
revisionName := convert.ToString(actionInput["revisionId"])
if revisionName == "" {
return fmt.Errorf("revision is empty")
}
_, projectID := ref.Parse(app.ProjectID)
revisionID := fmt.Sprintf("%s:%s", projectID, revisionName)
var appRevision projectv3.AppRevision
if err := access.ByID(apiContext, &projectschema.Version, projectv3.AppRevisionType, revisionID, &appRevision); err != nil {
return err
}
_, namespace := ref.Parse(app.ProjectID)
obj, err := w.AppGetter.Apps(namespace).Get(app.Name, metav1.GetOptions{})
if err != nil {
return err
}
obj.Spec.Answers = appRevision.Status.Answers
obj.Spec.ExternalID = appRevision.Status.ExternalID
obj.Spec.ValuesYaml = appRevision.Status.ValuesYaml
if convert.ToBool(forceUpgrade) {
pv3.AppConditionForceUpgrade.Unknown(obj)
}
if creatorNotFound {
obj.Annotations[creatorIDAnno] = w.UserManager.GetUser(apiContext)
}
obj.Spec.Files = appRevision.Status.Files
// indicate this a user driven action
pv3.AppConditionUserTriggeredAction.True(obj)
if _, err := w.AppGetter.Apps(namespace).Update(obj); err != nil {
return err
}
apiContext.WriteResponse(http.StatusNoContent, map[string]interface{}{})
return nil
}
return nil
}
func (w Wrapper) LinkHandler(apiContext *types.APIContext, next types.RequestHandler) error {
switch apiContext.Link {
case "revision":
var app projectv3.App
if err := access.ByID(apiContext, &projectschema.Version, projectv3.AppType, apiContext.ID, &app); err != nil {
return err
}
var appRevisions, filtered []map[string]interface{}
if err := access.List(apiContext, &projectschema.Version, projectv3.AppRevisionType, &types.QueryOptions{}, &appRevisions); err != nil {
return err
}
for _, re := range appRevisions {
labels := convert.ToMapInterface(re["labels"])
if reflect.DeepEqual(labels[appLabel], app.Name) {
filtered = append(filtered, re)
}
}
apiContext.Type = projectv3.AppRevisionType
apiContext.WriteResponse(http.StatusOK, filtered)
return nil
}
return nil
}