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improved graph/workflow retrieval

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pb 2024-07-23 12:16:20 +02:00
parent 0856c90930
commit 559bac5eb9
5 changed files with 143 additions and 57 deletions
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66
daemons/execution_manager.go
View File

@ -1,12 +1,68 @@
package daemons
import "oc-scheduler/models"
import (
"oc-scheduler/logger"
"oc-scheduler/models"
"oc-scheduler/workflow_builder"
"time"
)
type ExecutionManager struct {
Bookings models.ScheduledBooking
bookings *models.ScheduledBooking
executions []models.Booking
}
func (em *ExecutionManager) test(){
em.Bookings.Mu.Lock()
defer em.Bookings.Mu.Unlock()
func (em *ExecutionManager) SetBookings(b *models.ScheduledBooking){
em.bookings = b
}
// Loop every second on the booking's list and move the booking that must start to a new list
// that will be looped over to start them
func (em *ExecutionManager) RetrieveNextExecutions(){
if(em.bookings == nil){
logger.Logger.Fatal().Msg("booking has not been set in the exection manager")
}
for(true){
logger.Logger.Debug().Msg("New loop")
em.bookings.Mu.Lock()
bookings := em.bookings.Bookings
if (len(bookings) > 0){
for i := len( bookings) - 1 ; i >= 0 ; i--{
logger.Logger.Debug().Msg("It should start at " + bookings[i].Start.String() + " and it is now " + time.Now().UTC() .String())
if (bookings[i].Start.Before(time.Now().UTC())){
logger.Logger.Info().Msg("Will execute " + bookings[i].Workflow + " soon")
go em.executeBooking(bookings[i])
bookings = append(bookings[:i], bookings[i+1:]...)
em.bookings.Bookings = bookings
}
}
}
em.bookings.Mu.Unlock()
time.Sleep(time.Second)
}
}
func (em *ExecutionManager) executeBooking(booking models.Booking){
// create argo
new_graph := workflow_builder.Graph{}
err := new_graph.LoadFrom(booking.Workflow)
if err != nil {
logger.Logger.Error().Msg("Could not retrieve workflow " + booking.Workflow + " from oc-catalog API")
}
argo_file, err := new_graph.ExportToArgo()
if err != nil {
logger.Logger.Error().Msg("Could not create the Argo file for " + booking.Workflow )
logger.Logger.Error().Msg(err.Error())
}
_ = argo_file
// start execution
// locally launch a pod that contains oc-monitor, give it the name of the workflow
// create the yaml that describes the pod : filename, path/url to Loki
// locally launch an argo workflow with the filename `argo submit PATH_TO_YAML --watch --serviceaccount=argo -n argo`
}

28
daemons/schedule_manager.go
View File

@ -17,13 +17,15 @@ import (
type ScheduleManager struct {
Api_url string
list models.ScheduledBooking
ws HttpQuery
Api_url string
bookings *models.ScheduledBooking
ws models.HttpQuery
}
func (s *ScheduleManager) SetBookings(b *models.ScheduledBooking){
s.bookings = b
}
// Goroutine listening to a NATS server for updates
// on workflows' scheduling. Messages must contain
@ -31,6 +33,10 @@ type ScheduleManager struct {
// is no way to get scheduling infos for a specific workflow
func (s *ScheduleManager) ListenWorkflowSubmissions(){
if(s.bookings == nil){
logger.Logger.Fatal().Msg("booking has not been set in the schedule manager")
}
nc, _ := nats.Connect(nats.DefaultURL)
defer nc.Close()
@ -48,7 +54,7 @@ func (s *ScheduleManager) ListenWorkflowSubmissions(){
map_mess := retrieveMapFromSub(msg.Data)
s.list.Mu.Lock()
s.bookings.Mu.Lock()
start, err := time.Parse(time.RFC3339,map_mess["start_date"])
if err != nil{
@ -59,8 +65,8 @@ func (s *ScheduleManager) ListenWorkflowSubmissions(){
logger.Logger.Error().Msg(err.Error())
}
s.list.AddSchedule(models.Booking{Workflow: map_mess["workflow"], Start: start, Stop: stop })
s.list.Mu.Unlock()
s.bookings.AddSchedule(models.Booking{Workflow: map_mess["workflow"], Start: start, Stop: stop })
s.bookings.Mu.Unlock()
}
}
@ -81,7 +87,7 @@ func (s *ScheduleManager) RetrieveScheduling (){
}
logger.Logger.Info().Msg("Current list of schedules")
fmt.Println(s.list.Bookings)
fmt.Println(s.bookings.Bookings)
time.Sleep(time.Minute * 5)
}
@ -102,14 +108,14 @@ func (s *ScheduleManager) getNextScheduledWorkflows(apiurl string, hours float64
var workflows []map[string]string
json.Unmarshal(body,&workflows)
s.list.Mu.Lock()
defer s.list.Mu.Unlock()
s.bookings.Mu.Lock()
defer s.bookings.Mu.Unlock()
for _, workflow := range(workflows){
start, _ := time.Parse(time.RFC3339,workflow["start_date"])
stop, _ := time.Parse(time.RFC3339,workflow["stop_date"])
s.list.AddSchedule(models.Booking{Workflow: workflow["Workflow"], Start: start, Stop: stop})
s.bookings.AddSchedule(models.Booking{Workflow: workflow["Workflow"], Start: start, Stop: stop})
}
return nil

2
daemons/http.go → models/http.go
View File

@ -1,4 +1,4 @@
package daemons
package models
import (
"io"

12
argo_builder.go → workflow_builder/argo_builder.go
View File

@ -2,7 +2,7 @@
// via its lists of components into an argo file, using the a list of
// link ID to build the dag
package main
package workflow_builder
import (
"fmt"
@ -40,7 +40,7 @@ type Spec struct {
Templates []Template `yaml:"templates"`
}
func (b *ArgoBuilder) CreateDAG() bool {
func (b *ArgoBuilder) CreateDAG() (string, error) {
fmt.Println("list of branches : ", b.branches)
b.createTemplates()
@ -54,10 +54,9 @@ func (b *ArgoBuilder) CreateDAG() bool {
b.Workflow.Metadata.GenerateName = "oc-test-" + random_name
yamlified, err := yaml.Marshal(b.Workflow)
if err != nil {
logs.Error("Could not transform object to yaml file")
return false
return "", err
}
// Give a unique name to each argo file with its timestamp DD:MM:YYYY_hhmmss
@ -67,11 +66,10 @@ func (b *ArgoBuilder) CreateDAG() bool {
err = os.WriteFile(workflows_dir + file_name , []byte(yamlified), 0660)
if err != nil {
logs.Error("Could not write the yaml file")
return false
return "",err
}
fmt.Println("Created " + file_name)
return true
return file_name, nil
}
func (b *ArgoBuilder) createTemplates() {

92
graph.go → workflow_builder/graph.go
View File

@ -1,13 +1,15 @@
package main
package workflow_builder
import (
"encoding/json"
"fmt"
"maps"
"net/url"
"oc-scheduler/daemons"
"cloud.o-forge.io/core/oc-catalog/models"
"oc-scheduler/conf"
"oc-scheduler/logger"
models "oc-scheduler/models"
catalog_models "cloud.o-forge.io/core/oc-catalog/models" // this will be replaced with oc-lib
"github.com/beego/beego/v2/core/logs"
"github.com/tidwall/gjson"
@ -16,12 +18,13 @@ import (
type Graph struct {
Datas []models.DataModel
Computings []models.ComputingModel
Datacenters []models.DatacenterModel
Storages []models.StorageModel
Links map[string]models.Link
ws daemons.HttpQuery
workflow_name string // used to test if the graph has been instatiated, private so can only be set by a graph's method
Datas []catalog_models.DataModel
Computings []catalog_models.ComputingModel
Datacenters []catalog_models.DatacenterModel
Storages []catalog_models.StorageModel
Links map[string]catalog_models.Link
ws models.HttpQuery
}
// Create a dictionnaries with each existing workflow from a workspace, associated to the JSON representation of its content
@ -40,21 +43,38 @@ func (g *Graph) GetGraphList(apiurl string) (map[string]string, error) {
return workspaces, nil
}
// Should the parameter be removed, since we have oc-catalog url in the conf ?
func (g *Graph) GetGraph(apiurl string, workflow string) (string, error) {
g.ws.Init(apiurl)
body, err := g.ws.Get("v1/workflow/" + workflow)
if err != nil {
return "", err
}
graph := string(body)
// result := gjson.Get(string(body), "Workflows")
// result.ForEach(func(key, value gjson.Result) bool {
// workspaces[key.Str] = value.String()
// return true // keep iterating
// })
return graph, nil
}
// Create the objects from the mxgraphxml stored in the workflow given as a parameter
func (g *Graph) LoadFrom(workspace string) error {
func (g *Graph) LoadFrom(workflow_name string) error {
// Extract the xmlgraph from the given workspace
xml := gjson.Get(workspace, "MxgraphXML").String()
decodedValue, err := url.QueryUnescape(xml)
graph, err := g.GetGraph(conf.GetConfig().OcCatalogUrl,workflow_name)
if err != nil {
return err
}
_ = decodedValue
// os.WriteFile("graph.xml", []byte(decodedValue), 0660)
g.GetWorkflowComponents(workspace)
g.GetLinks(workspace)
g.GetWorkflowComponents(graph)
g.GetLinks(graph)
g.workflow_name = workflow_name
return nil
}
@ -94,12 +114,12 @@ func (g *Graph) GetWorkflowComponents(workflow string){
}
func (g *Graph) GetLinks(workflow string){
g.Links = make(map[string]models.Link)
g.Links = make(map[string]catalog_models.Link)
result := gjson.Get(workflow, "link")
if (result.Type != gjson.Null) {
result.ForEach(func(id, value gjson.Result) bool{
var l models.Link
var l catalog_models.Link
json.Unmarshal([]byte(value.Raw),&l)
g.Links[id.Str] = l
@ -109,7 +129,7 @@ func (g *Graph) GetLinks(workflow string){
}
func (g *Graph) AddDataModel(id string, user_input gjson.Result, wf_id string) error {
var d models.DataModel
var d catalog_models.DataModel
resp, err := g.ws.Get("v1/data/" + id)
if err != nil {
return err
@ -122,7 +142,7 @@ func (g *Graph) AddDataModel(id string, user_input gjson.Result, wf_id string) e
}
func (g *Graph) AddDatacenterModel(id string, user_input gjson.Result, wf_id string) error {
var d models.DatacenterModel
var d catalog_models.DatacenterModel
resp, err := g.ws.Get("v1/datacenter/" + id)
if err != nil {
return err
@ -135,7 +155,7 @@ func (g *Graph) AddDatacenterModel(id string, user_input gjson.Result, wf_id str
}
func (g *Graph) AddComputingModel(id string, user_input gjson.Result, wf_id string) error {
var c models.ComputingModel
var c catalog_models.ComputingModel
resp, err := g.ws.Get("v1/computing/" + id)
if err != nil {
return err
@ -148,7 +168,7 @@ func (g *Graph) AddComputingModel(id string, user_input gjson.Result, wf_id stri
}
func (g *Graph) AddStorageModel(id string, user_input gjson.Result, wf_id string) error {
var s models.StorageModel
var s catalog_models.StorageModel
resp, err := g.ws.Get("v1/storage/" + id)
if err != nil {
return err
@ -160,8 +180,11 @@ func (g *Graph) AddStorageModel(id string, user_input gjson.Result, wf_id string
return nil
}
func (g *Graph) ExportToArgo(id string) error {
end_links := make(map[string]models.Link)
func (g *Graph) ExportToArgo() (string, error) {
if len(g.workflow_name) == 0 {
return "",fmt.Errorf("can't export a graph that has not been loaded yet")
}
end_links := make(map[string]catalog_models.Link)
for i, link := range g.Links {
if (!link.DCLink && !g.isSource(link.Destination,i)){
@ -184,20 +207,23 @@ func (g *Graph) ExportToArgo(id string) error {
fmt.Println("Identified branches : ", list_branches)
argo_builder := ArgoBuilder{graph : *g, branches: list_branches}
argo_builder.CreateDAG()
return nil
filename, err := argo_builder.CreateDAG()
if err != nil {
logger.Logger.Error().Msg("Could not create the argo file for " + g.workflow_name)
return "", err
}
return filename, nil
}
// Return a list containing the IDs of each link that make up a branch in the graph
func (g *Graph) getListBranches(end_links map[string]models.Link, unvisited_links_list map[string]models.Link, current_branch []string) (list_branches [][]string) {
func (g *Graph) getListBranches(end_links map[string]catalog_models.Link, unvisited_links_list map[string]catalog_models.Link, current_branch []string) (list_branches [][]string) {
if current_branch == nil {
current_branch = make([]string, 0)
}
if unvisited_links_list == nil {
unvisited_links_list = make(map[string]models.Link,len(g.Links))
unvisited_links_list = make(map[string]catalog_models.Link,len(g.Links))
maps.Copy(unvisited_links_list,g.Links)
fmt.Println(unvisited_links_list)
}
@ -215,7 +241,7 @@ func (g *Graph) getListBranches(end_links map[string]models.Link, unvisited_link
current_branch = append([]string{link_id},current_branch...)
delete(unvisited_links_list, link_id)
// create a new branch for each previous link, appending the current path to this node to the created branch
new_end_link := make(map[string]models.Link,0)
new_end_link := make(map[string]catalog_models.Link,0)
new_end_link[id_link] = g.Links[id_link]
new_branches = g.getListBranches(new_end_link,unvisited_links_list,current_branch)
@ -264,7 +290,7 @@ func (g *Graph) isSource(comp_id string,link_id string) bool {
// with the same Destination id that the Source id in g.Links[linkIndex]
// or nil if not
func (g *Graph) getPreviousLink(link_id string,map_link map[string]models.Link) (previous_id []string) {
func (g *Graph) getPreviousLink(link_id string,map_link map[string]catalog_models.Link) (previous_id []string) {
for k, link := range map_link{
if(k != link_id && link.Destination == g.Links[link_id].Source){
previous_id = append(previous_id, k)
@ -320,7 +346,7 @@ func (g *Graph) getComponentType(component_id string) string {
// Returns a slice of id, in case the link is made of twice the same type of component
func (g *Graph) getComponentByType(compType string, link models.Link) (ids []string){
func (g *Graph) getComponentByType(compType string, link catalog_models.Link) (ids []string){
if(g.getComponentType(link.Source) == compType){
ids = append(ids, link.Source)
}