/
appcontext.go
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/
appcontext.go
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package api
import (
"fmt"
"net/http"
"github.com/caraml-dev/mlp/api/pkg/client/mlflow"
"gorm.io/gorm"
mlpcluster "github.com/caraml-dev/mlp/api/pkg/cluster"
batchensembling "github.com/caraml-dev/turing/api/turing/batch/ensembling"
batchrunner "github.com/caraml-dev/turing/api/turing/batch/runner"
"github.com/caraml-dev/turing/api/turing/cluster"
"github.com/caraml-dev/turing/api/turing/cluster/labeller"
"github.com/caraml-dev/turing/api/turing/config"
"github.com/caraml-dev/turing/api/turing/imagebuilder"
"github.com/caraml-dev/turing/api/turing/middleware"
"github.com/caraml-dev/turing/api/turing/service"
"github.com/caraml-dev/turing/engines/router/missionctl/errors"
)
// AppContext stores the entities relating to the application's context
type AppContext struct {
Authorizer *middleware.Authorizer
// DAO
DeploymentService service.DeploymentService
RoutersService service.RoutersService
RouterVersionsService service.RouterVersionsService
EventService service.EventService
EnsemblersService service.EnsemblersService
EnsemblingJobService service.EnsemblingJobService
AlertService service.AlertService
// Default configuration for routers
RouterDefaults *config.RouterDefaults
BatchRunners []batchrunner.BatchJobRunner
CryptoService service.CryptoService
MLPService service.MLPService
ExperimentsService service.ExperimentsService
PodLogService service.PodLogService
MlflowService mlflow.Service
}
// NewAppContext is a creator for the app context
func NewAppContext(
db *gorm.DB,
cfg *config.Config,
authorizer *middleware.Authorizer,
) (*AppContext, error) {
// Init Experiments Service
expSvc, err := service.NewExperimentsService(cfg.Experiment)
if err != nil {
return nil, errors.Wrapf(err, "Failed initializing Experiments Service")
}
// Init Crypto Service
cryptoService := service.NewCryptoService(cfg.TuringEncryptionKey)
// Init MLP service
mlpSvc, err := service.NewMLPService(cfg.MLPConfig.MLPURL, cfg.MLPConfig.MerlinURL)
if err != nil {
return nil, errors.Wrapf(err, "Failed initializing MLP Service")
}
envClusterMap, err := buildKubeconfigStore(mlpSvc, cfg)
if err != nil {
return nil, errors.Wrapf(err, "Error obtaining environment info from MLP Service and constructing kubeconfig store")
}
if cfg.ClusterConfig.InClusterConfig && len(envClusterMap) > 1 {
return nil, fmt.Errorf("There should only be one cluster if in cluster credentials are used")
}
// Initialise cluster controllers
clusterControllers, err := cluster.InitClusterControllers(cfg, envClusterMap)
if err != nil {
return nil, errors.Wrapf(err, "Failed initializing cluster controllers")
}
// Initialise Labeller
labeller.InitKubernetesLabeller(
cfg.KubernetesLabelConfigs.LabelPrefix,
cfg.KubernetesLabelConfigs.Environment,
)
// Initialise Batch components
// Since there is only the default environment, we will not create multiple batch runners.
var batchJobRunners []batchrunner.BatchJobRunner
var ensemblingJobService service.EnsemblingJobService
// Init ensemblers service
ensemblersService := service.NewEnsemblersService(db)
if cfg.BatchEnsemblingConfig.Enabled {
if cfg.BatchEnsemblingConfig.JobConfig == nil {
return nil, errors.Wrapf(err, "BatchEnsemblingConfig.JobConfig was not set")
}
if cfg.BatchEnsemblingConfig.RunnerConfig == nil {
return nil, errors.Wrapf(err, "BatchEnsemblingConfig.RunnerConfig was not set")
}
if cfg.BatchEnsemblingConfig.ImageBuildingConfig == nil {
return nil, errors.Wrapf(err, "BatchEnsemblingConfig.ImageBuildingConfig was not set")
}
// Initialise Ensembling Job Service
ensemblingJobService = service.NewEnsemblingJobService(
db,
cfg.BatchEnsemblingConfig.JobConfig.DefaultEnvironment,
cfg.BatchEnsemblingConfig.ImageBuildingConfig.BuildNamespace,
cfg.BatchEnsemblingConfig.LoggingURLFormat,
cfg.BatchEnsemblingConfig.MonitoringURLFormat,
cfg.BatchEnsemblingConfig.JobConfig.DefaultConfigurations,
mlpSvc,
)
imageBuildingController, ok := clusterControllers[cfg.EnsemblerServiceBuilderConfig.ClusterName]
if !ok {
return nil, errors.Wrapf(err, "Failed getting the image building controller")
}
ensemblingImageBuilder, err := imagebuilder.NewEnsemblerJobImageBuilder(
imageBuildingController,
*cfg.BatchEnsemblingConfig.ImageBuildingConfig,
)
if err != nil {
return nil, errors.Wrapf(err, "Failed initializing ensembling image builder")
}
batchClusterController, ok := clusterControllers[cfg.BatchEnsemblingConfig.JobConfig.DefaultEnvironment]
if !ok {
return nil, fmt.Errorf("Failed getting the batch ensembling job controller")
}
batchEnsemblingController := batchensembling.NewBatchEnsemblingController(
batchClusterController,
mlpSvc,
cfg.SparkAppConfig,
)
batchEnsemblingJobRunner := batchensembling.NewBatchEnsemblingJobRunner(
batchEnsemblingController,
ensemblingJobService,
ensemblersService,
mlpSvc,
ensemblingImageBuilder,
cfg.BatchEnsemblingConfig.RunnerConfig.RecordsToProcessInOneIteration,
cfg.BatchEnsemblingConfig.RunnerConfig.MaxRetryCount,
cfg.BatchEnsemblingConfig.ImageBuildingConfig.BuildTimeoutDuration,
cfg.BatchEnsemblingConfig.RunnerConfig.TimeInterval,
)
batchJobRunners = append(batchJobRunners, batchEnsemblingJobRunner)
}
// Initialise EnsemblerServiceImageBuilder
ensemblerServiceImageBuilder, err := imagebuilder.NewEnsemblerServiceImageBuilder(
clusterControllers[cfg.EnsemblerServiceBuilderConfig.ClusterName],
*cfg.EnsemblerServiceBuilderConfig.ImageBuildingConfig,
)
if err != nil {
return nil, errors.Wrapf(err, "Failed initializing ensembler service builder")
}
// Initialise Mlflow delete package
mlflowService, err := mlflow.NewMlflowService(http.DefaultClient, mlflow.Config{
TrackingURL: cfg.MlflowConfig.TrackingURL,
ArtifactServiceType: cfg.MlflowConfig.ArtifactServiceType,
})
if err != nil {
return nil, errors.Wrapf(err, "Failed initializing mlflow delete package")
}
appContext := &AppContext{
Authorizer: authorizer,
DeploymentService: service.NewDeploymentService(cfg, clusterControllers, ensemblerServiceImageBuilder),
RoutersService: service.NewRoutersService(db, mlpSvc, cfg.RouterDefaults.MonitoringURLFormat),
EnsemblersService: ensemblersService,
EnsemblingJobService: ensemblingJobService,
RouterVersionsService: service.NewRouterVersionsService(db, mlpSvc, cfg.RouterDefaults.MonitoringURLFormat),
EventService: service.NewEventService(db),
RouterDefaults: cfg.RouterDefaults,
CryptoService: cryptoService,
MLPService: mlpSvc,
ExperimentsService: expSvc,
PodLogService: service.NewPodLogService(
clusterControllers,
),
BatchRunners: batchJobRunners,
MlflowService: mlflowService,
}
if cfg.AlertConfig.Enabled && cfg.AlertConfig.GitLab != nil {
appContext.AlertService, err = service.NewGitlabOpsAlertService(db, *cfg.AlertConfig)
if err != nil {
return nil, errors.Wrapf(err, "Failed to initialize AlertService")
}
}
return appContext, nil
}
// buildKubeconfigStore creates a map of the environment name to the kubernetes cluster.
// It combines the EnsemblerServiceBuilderConfig with a list of environments retrieved from mlpSvc
// into a map. Each environment retrieved from mlpSvc should have a corresponding k8sConfig, else
// an error is returned.
func buildKubeconfigStore(mlpSvc service.MLPService, cfg *config.Config) (map[string]*mlpcluster.K8sConfig, error) {
// Create a map of env name to cluster name for each supported deployment environment
k8sConfigStore := make(map[string]*mlpcluster.K8sConfig)
if !cfg.ClusterConfig.InClusterConfig {
k8sConfigStore[cfg.EnsemblerServiceBuilderConfig.ClusterName] = cfg.ClusterConfig.EnsemblingServiceK8sConfig
} else {
// The ensembling service builder cluster name is added as the cluster to use.
// It has no K8sConfig set because the pod running turing is accessing the cluster
// in which it is deployed in.
k8sConfigStore[cfg.EnsemblerServiceBuilderConfig.ClusterName] = nil
}
for _, envconfig := range cfg.ClusterConfig.EnvironmentConfigs {
k8sConfigStore[envconfig.Name] = envconfig.K8sConfig
}
// Get all environments
environments, err := mlpSvc.GetEnvironments()
if err != nil {
return k8sConfigStore, err
}
// Check if k8s store contains kubeconfig for envs received from merlin
for _, environment := range environments {
// check if clusterConfigs have k8sconfig for environment name
if _, ok := k8sConfigStore[environment.Name]; !ok {
return nil, fmt.Errorf("Missing k8sconfig for cluster %s", environment.Cluster)
}
}
return k8sConfigStore, nil
}