/
bind.go
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/
bind.go
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// Copyright © 2021 - 2023 SUSE LLC
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package service
import (
"fmt"
"github.com/epinio/epinio/helpers/kubernetes"
"github.com/epinio/epinio/internal/api/v1/configurationbinding"
"github.com/epinio/epinio/internal/api/v1/response"
"github.com/epinio/epinio/internal/application"
"github.com/epinio/epinio/internal/cli/server/requestctx"
"github.com/epinio/epinio/internal/configurations"
"github.com/gin-gonic/gin"
apierror "github.com/epinio/epinio/pkg/api/core/v1/errors"
"github.com/epinio/epinio/pkg/api/core/v1/models"
)
// Bind handles the API endpoint /namespaces/:namespace/services/:service/bind (POST)
// It creates a binding between the specified service and application
func Bind(c *gin.Context) apierror.APIErrors {
ctx := c.Request.Context()
logger := requestctx.Logger(ctx).WithName("ServiceBind")
namespace := c.Param("namespace")
serviceName := c.Param("service")
var bindRequest models.ServiceBindRequest
err := c.BindJSON(&bindRequest)
if err != nil {
return apierror.NewBadRequestError(err.Error())
}
cluster, err := kubernetes.GetCluster(ctx)
if err != nil {
return apierror.InternalError(err)
}
logger.Info("looking for application")
app, err := application.Lookup(ctx, cluster, namespace, bindRequest.AppName)
if err != nil {
return apierror.InternalError(err)
}
if app == nil {
return apierror.AppIsNotKnown(bindRequest.AppName)
}
service, apiErr := GetService(ctx, cluster, logger, namespace, serviceName)
if apiErr != nil {
return apiErr
}
apiErr = ValidateService(ctx, cluster, logger, service)
if apiErr != nil {
return apiErr
}
// A service has one or more associated secrets containing its attributes. Adding
// a specific set of labels turns these secrets into valid epinio
// configurations. These configurations are then bound to the application.
logger.Info("looking for secrets to label")
configurationSecrets, err := configurations.LabelServiceSecrets(ctx, cluster, service)
if err != nil {
return apierror.InternalError(err)
}
logger.Info(fmt.Sprintf("configurationSecrets found %+v\n", configurationSecrets))
configurationNames := []string{}
for _, secret := range configurationSecrets {
configurationNames = append(configurationNames, secret.Name)
}
logger.Info("binding service configuration")
_, errors := configurationbinding.CreateConfigurationBinding(
ctx, cluster, namespace, *app, configurationNames,
)
if errors != nil {
return apierror.NewMultiError(errors.Errors())
}
logger.Info("binding service")
// And track the service binding itself as well.
okToBind := []string{serviceName}
logger.Info("BoundServicesSet")
err = application.BoundServicesSet(ctx, cluster, app.Meta, okToBind, false)
if err != nil {
// TODO: Rewind the configuration bindings made above.
// DANGER: This work here is not transactional :(
return apierror.InternalError(err)
}
response.OK(c)
return nil
}