/
adapter.go
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/
adapter.go
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/*
Copyright 2022 TriggerMesh Inc.
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 awseventbridgesource
import (
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"knative.dev/eventing/pkg/reconciler/source"
"knative.dev/pkg/apis"
commonv1alpha1 "github.com/triggermesh/triggermesh/pkg/apis/common/v1alpha1"
"github.com/triggermesh/triggermesh/pkg/apis/sources/v1alpha1"
common "github.com/triggermesh/triggermesh/pkg/reconciler"
"github.com/triggermesh/triggermesh/pkg/reconciler/resource"
"github.com/triggermesh/triggermesh/pkg/sources/reconciler"
)
const envMessageProcessor = "SQS_MESSAGE_PROCESSOR"
const healthPortName = "health"
// adapterConfig contains properties used to configure the source's adapter.
// These are automatically populated by envconfig.
type adapterConfig struct {
// Container image
// Reuses the adapter from the SQS source.
Image string `envconfig:"AWSSQSSOURCE_IMAGE" default:"gcr.io/triggermesh/awssqssource"`
// Configuration accessor for logging/metrics/tracing
configs source.ConfigAccessor
}
// Verify that Reconciler implements common.AdapterBuilder.
var _ common.AdapterBuilder[*appsv1.Deployment] = (*Reconciler)(nil)
// BuildAdapter implements common.AdapterBuilder.
func (r *Reconciler) BuildAdapter(src commonv1alpha1.Reconcilable, sinkURI *apis.URL) (*appsv1.Deployment, error) {
typedSrc := src.(*v1alpha1.AWSEventBridgeSource)
return common.NewAdapterDeployment(src, sinkURI,
resource.Image(r.adapterCfg.Image),
resource.EnvVars(MakeAppEnv(typedSrc)...),
resource.EnvVars(r.adapterCfg.configs.ToEnvVars()...),
resource.Port(healthPortName, 8080),
resource.StartupProbe("/health", healthPortName),
), nil
}
// MakeAppEnv extracts environment variables from the object.
// Exported to be used in external tools for local test environments.
func MakeAppEnv(o *v1alpha1.AWSEventBridgeSource) []corev1.EnvVar {
// the user may or may not provide a queue ARN in the source's spec, so
// the source's status is unfortunately our only source of truth here
var queueARN string
if qa := o.Status.QueueARN; qa != nil {
queueARN = qa.String()
}
return append(reconciler.MakeAWSAuthEnvVars(o.Spec.Auth),
[]corev1.EnvVar{
{
Name: common.EnvARN,
Value: queueARN,
}, {
Name: envMessageProcessor,
Value: "eventbridge",
}, {
Name: common.EnvCESource,
Value: o.AsEventSource(),
},
}...,
)
}