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templates.go
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templates.go
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package provisioning
import (
"context"
"fmt"
"github.com/grafana/grafana/pkg/infra/log"
"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions"
"github.com/grafana/grafana/pkg/services/ngalert/models"
)
type TemplateService struct {
config AMConfigStore
prov ProvisioningStore
xact TransactionManager
log log.Logger
}
func NewTemplateService(config AMConfigStore, prov ProvisioningStore, xact TransactionManager, log log.Logger) *TemplateService {
return &TemplateService{
config: config,
prov: prov,
xact: xact,
log: log,
}
}
func (t *TemplateService) GetTemplates(ctx context.Context, orgID int64) (map[string]string, error) {
revision, err := getLastConfiguration(ctx, orgID, t.config)
if err != nil {
return nil, err
}
if revision.cfg.TemplateFiles == nil {
return map[string]string{}, nil
}
return revision.cfg.TemplateFiles, nil
}
func (t *TemplateService) SetTemplate(ctx context.Context, orgID int64, tmpl definitions.NotificationTemplate) (definitions.NotificationTemplate, error) {
err := tmpl.Validate()
if err != nil {
return definitions.NotificationTemplate{}, fmt.Errorf("%w: %s", ErrValidation, err.Error())
}
revision, err := getLastConfiguration(ctx, orgID, t.config)
if err != nil {
return definitions.NotificationTemplate{}, err
}
if revision.cfg.TemplateFiles == nil {
revision.cfg.TemplateFiles = map[string]string{}
}
revision.cfg.TemplateFiles[tmpl.Name] = tmpl.Template
tmpls := make([]string, 0, len(revision.cfg.TemplateFiles))
for name := range revision.cfg.TemplateFiles {
tmpls = append(tmpls, name)
}
revision.cfg.AlertmanagerConfig.Templates = tmpls
serialized, err := serializeAlertmanagerConfig(*revision.cfg)
if err != nil {
return definitions.NotificationTemplate{}, err
}
cmd := models.SaveAlertmanagerConfigurationCmd{
AlertmanagerConfiguration: string(serialized),
ConfigurationVersion: revision.version,
FetchedConfigurationHash: revision.concurrencyToken,
Default: false,
OrgID: orgID,
}
err = t.xact.InTransaction(ctx, func(ctx context.Context) error {
err = PersistConfig(ctx, t.config, &cmd)
if err != nil {
return err
}
err = t.prov.SetProvenance(ctx, &tmpl, orgID, models.Provenance(tmpl.Provenance))
if err != nil {
return err
}
return nil
})
if err != nil {
return definitions.NotificationTemplate{}, err
}
return tmpl, nil
}
func (t *TemplateService) DeleteTemplate(ctx context.Context, orgID int64, name string) error {
revision, err := getLastConfiguration(ctx, orgID, t.config)
if err != nil {
return err
}
delete(revision.cfg.TemplateFiles, name)
serialized, err := serializeAlertmanagerConfig(*revision.cfg)
if err != nil {
return err
}
cmd := models.SaveAlertmanagerConfigurationCmd{
AlertmanagerConfiguration: string(serialized),
ConfigurationVersion: revision.version,
FetchedConfigurationHash: revision.concurrencyToken,
Default: false,
OrgID: orgID,
}
err = t.xact.InTransaction(ctx, func(ctx context.Context) error {
err = PersistConfig(ctx, t.config, &cmd)
if err != nil {
return err
}
tgt := definitions.NotificationTemplate{
Name: name,
}
err = t.prov.DeleteProvenance(ctx, &tgt, orgID)
if err != nil {
return err
}
return nil
})
if err != nil {
return err
}
return nil
}