206 lines
8.1 KiB
Go
206 lines
8.1 KiB
Go
// A class that translates the informations held in the graph object
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// via its lists of components into an argo file, using the a list of
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// link ID to build the dag
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package workflow_builder
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import (
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"errors"
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"fmt"
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"oc-monitord/conf"
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"oc-monitord/models"
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. "oc-monitord/models"
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"os"
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"time"
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oclib "cloud.o-forge.io/core/oc-lib"
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"cloud.o-forge.io/core/oc-lib/logs"
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"cloud.o-forge.io/core/oc-lib/models/resources"
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w "cloud.o-forge.io/core/oc-lib/models/workflow"
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"github.com/nwtgck/go-fakelish"
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"github.com/rs/zerolog"
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"gopkg.in/yaml.v3"
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)
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var logger zerolog.Logger
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type ArgoBuilder struct {
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OriginWorkflow *w.Workflow
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Workflow *models.Workflow
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Services []*Service
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Timeout int
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RemotePeers []string
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}
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// TODO: found on a processing instance linked to storage
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// add s3, gcs, azure, etc if needed on a link between processing and storage
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func (b *ArgoBuilder) CreateDAG(namespace string, write bool) (int, []string, []string, error) {
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logger = logs.GetLogger()
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logger.Info().Msg(fmt.Sprint("Creating DAG ", b.OriginWorkflow.Graph.Items))
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// handle services by checking if there is only one processing with hostname and port
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firstItems, lastItems, volumes := b.createTemplates(namespace)
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b.createVolumes(volumes)
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if b.Timeout > 0 {
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b.Workflow.Spec.Timeout = b.Timeout
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}
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b.Workflow.Spec.ServiceAccountName = "sa-" + namespace
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b.Workflow.Spec.Entrypoint = "dag"
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b.Workflow.ApiVersion = "argoproj.io/v1alpha1"
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b.Workflow.Kind = "Workflow"
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return len(b.Workflow.GetDag().Tasks), firstItems, lastItems, nil
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}
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func (b *ArgoBuilder) createTemplates(namespace string) ([]string, []string, []models.VolumeMount) {
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volumes := []models.VolumeMount{}
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firstItems := []string{}
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lastItems := []string{}
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items := b.OriginWorkflow.GetGraphItems(b.OriginWorkflow.Graph.IsProcessing)
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logger.Info().Msg(fmt.Sprint("Creating templates", len(items)))
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for _, item := range items {
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instance := item.Processing.GetSelectedInstance()
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logger.Info().Msg(fmt.Sprint("Creating template for", item.Processing.GetName(), instance))
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if instance == nil || instance.(*resources.ProcessingInstance).Access == nil && instance.(*resources.ProcessingInstance).Access.Container != nil {
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logger.Error().Msg("Not enough configuration setup, template can't be created : " + item.Processing.GetName())
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return firstItems, lastItems, volumes
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}
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volumes, firstItems, lastItems = b.createArgoTemplates(namespace,
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item.ID, item.Processing, volumes, firstItems, lastItems)
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}
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wfDeps := models.NewWorkflowDependancies()
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for _, workflowID := range b.OriginWorkflow.Workflows {
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b.createWorkflowArgoTemplate(workflowID, namespace, wfDeps)
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}
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wfDeps.BindRelatedTasks(b.Workflow.GetDag())
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wfDeps.BindFirstTasks(b.OriginWorkflow.GetDependencies, b.Workflow.GetDag())
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if b.Services != nil {
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dag := b.Workflow.GetDag()
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dag.Tasks = append(dag.Tasks, Task{Name: "workflow-service-pod", Template: "workflow-service-pod"})
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b.addServiceToArgo()
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}
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return firstItems, lastItems, volumes
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}
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func (b *ArgoBuilder) createWorkflowArgoTemplate(
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workflowID string,
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namespace string,
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wfDeps *models.WorkflowsDependancies,
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) {
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realWorkflow, code, err := w.NewAccessor(nil).LoadOne(workflowID)
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if code != 200 {
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logger.Error().Msg("Error loading the workflow : " + err.Error())
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return
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}
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subBuilder := ArgoBuilder{OriginWorkflow: realWorkflow.(*w.Workflow), Workflow: &models.Workflow{}, Timeout: b.Timeout}
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_, fi, li, err := subBuilder.CreateDAG(namespace, false)
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if err != nil {
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logger.Error().Msg("Error creating the subworkflow : " + err.Error())
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return
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}
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wfDeps.FirstWfTasks[workflowID] = fi
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if depsOfIds := subBuilder.OriginWorkflow.IsDependancy(workflowID); len(depsOfIds) > 0 { // IS BEFORE
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wfDeps.LastWfTasks[workflowID] = li
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wfDeps.RelatedWfTasks[workflowID] = models.TransformDepsToArgo(depsOfIds)
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}
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subDag := subBuilder.Workflow.GetDag()
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d := b.Workflow.GetDag()
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d.Tasks = append(d.Tasks, subDag.Tasks...) // add the tasks of the subworkflow to the main workflow
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b.Workflow.Spec.Templates = append(b.Workflow.Spec.Templates, subBuilder.Workflow.Spec.Templates...)
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b.Workflow.Spec.Volumes = append(b.Workflow.Spec.Volumes, subBuilder.Workflow.Spec.Volumes...)
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b.Workflow.Spec.Arguments = append(b.Workflow.Spec.Arguments, subBuilder.Workflow.Spec.Arguments...)
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b.Services = append(b.Services, subBuilder.Services...)
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}
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func (b *ArgoBuilder) createArgoTemplates(
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namespace string,
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id string,
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processing *resources.ProcessingResource,
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volumes []models.VolumeMount,
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firstItems []string,
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lastItems []string,
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) ([]models.VolumeMount, []string, []string) {
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_, firstItems, lastItems = NewTask(processing.Name, id).BindToArgo(b.Workflow.GetDag(), id, b.OriginWorkflow, processing, firstItems, lastItems)
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template := &Template{Name: models.GetArgoName(processing.GetName(), id)}
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logger.Info().Msg(fmt.Sprint("Creating template for", template.Name))
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template.CreateContainer(processing, b.Workflow.GetDag())
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if err := b.RepartiteProcess(*processing, id, template, namespace); err != nil {
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logger.Error().Msg(fmt.Sprint("Problem to sets up repartition expected %v", err.Error()))
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return volumes, firstItems, lastItems
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}
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// get datacenter from the processing
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if processing.IsService {
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b.CreateService(id, processing)
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template.Metadata.Labels = make(map[string]string)
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template.Metadata.Labels["app"] = "oc-service-" + processing.GetName() // Construct the template for the k8s service and add a link in graph between k8s service and processing
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}
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b.Workflow.Spec.Templates = append(b.Workflow.Spec.Templates, *template)
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return volumes, firstItems, lastItems
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}
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func (b *ArgoBuilder) createVolumes(volumes []models.VolumeMount) { // TODO : one think about remote volume but TG
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for _, volume := range volumes {
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volume.BindToArgo(b.Workflow)
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}
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}
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// Verify if a processing resource is attached to another Compute than the one hosting
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// the current Open Cloud instance. If true return the peer ID to contact
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func (b *ArgoBuilder) RepartiteProcess(processing resources.ProcessingResource, graphID string, template *models.Template, namespace string) error {
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computeAttached := b.OriginWorkflow.GetByRelatedProcessing(processing.GetID(), b.OriginWorkflow.Graph.IsCompute)
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if len(computeAttached) == 0 {
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return errors.New("No compute was found attached to processing " + processing.Name + " : " + processing.UUID)
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}
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// Creates an accessor srtictly for Peer Collection
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for _, related := range computeAttached {
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res := oclib.NewRequest(oclib.LibDataEnum(oclib.PEER), "", "", nil, nil).LoadOne(related.Node.GetCreatorID())
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if res.Err != "" {
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return errors.New(res.Err)
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}
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peer := *res.ToPeer()
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isNotReparted := peer.State == 1
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logger.Info().Msg(fmt.Sprint("Result IsMySelf for ", peer.UUID, " : ", isNotReparted))
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if !(isNotReparted) {
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logger.Debug().Msg("Reparted processing, on " + peer.UUID)
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b.RemotePeers = append(b.RemotePeers, peer.UUID)
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template.AddAdmiraltyAnnotations(peer.UUID, namespace)
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}
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}
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return nil
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}
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// Execute the last actions once the YAML file for the Argo Workflow is created
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func (b *ArgoBuilder) CompleteBuild(namespace string) (string, error) {
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logger.Info().Msg("DEV :: Completing build")
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setter := AdmiraltySetter{Id: namespace}
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// Setup admiralty for each node
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for _, peer := range b.RemotePeers {
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logger.Info().Msg(fmt.Sprint("DEV :: Launching Admiralty Setup for ", peer))
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setter.InitializeAdmiralty(conf.GetConfig().PeerID, peer)
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}
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// Generate the YAML file
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random_name := fakelish.GenerateFakeWord(5, 8) + "-" + fakelish.GenerateFakeWord(5, 8)
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b.Workflow.Metadata.Name = "oc-monitor-" + random_name
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logger = oclib.GetLogger()
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yamlified, err := yaml.Marshal(b.Workflow)
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if err != nil {
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logger.Error().Msg("Could not transform object to yaml file")
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return "", err
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}
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// Give a unique name to each argo file with its timestamp DD:MM:YYYY_hhmmss
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current_timestamp := time.Now().Format("02_01_2006_150405")
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file_name := random_name + "_" + current_timestamp + ".yml"
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workflows_dir := "./argo_workflows/"
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err = os.WriteFile(workflows_dir+file_name, []byte(yamlified), 0660)
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if err != nil {
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logger.Error().Msg("Could not write the yaml file")
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return "", err
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}
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return workflows_dir + file_name, nil
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}
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