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kie-kogito-serverless-operator-405: Add external built image integri…
…ty validation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| // Copyright 2024 Apache Software Foundation (ASF) | ||
| // | ||
| // 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 validation | ||
|
|
||
| import ( | ||
| "archive/tar" | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
|
|
||
| operatorapi "github.com/apache/incubator-kie-kogito-serverless-operator/api/v1alpha08" | ||
| "github.com/google/go-cmp/cmp" | ||
| "github.com/google/go-containerregistry/pkg/name" | ||
| v1 "github.com/google/go-containerregistry/pkg/v1" | ||
| "github.com/google/go-containerregistry/pkg/v1/remote" | ||
| "k8s.io/apimachinery/pkg/util/yaml" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
||
| type ImageValidator struct{} | ||
|
|
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| var workflowName = "deployments/app/workflow.sw.json" | ||
|
|
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| func (v ImageValidator) Validate(ctx context.Context, client client.Client, sonataflow *operatorapi.SonataFlow, req ctrl.Request) error { | ||
| if sonataflow.HasContainerSpecImage() { | ||
| err := client.Get(ctx, req.NamespacedName, sonataflow) | ||
| equals, err := validateImage(sonataflow, sonataflow.Spec.PodTemplate.Container.Image) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if !equals { | ||
| return fmt.Errorf("Workflow, defined in the image %s doesn't match deployment workflow", sonataflow.Spec.PodTemplate.Container.Image) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func validateImage(sonataflow *operatorapi.SonataFlow, image string) (bool, error) { | ||
| imageRef, err := name.ParseReference(image) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
|
|
||
| ref, err := remote.Image(imageRef) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
|
|
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| reader, err := readLayers(ref, workflowName) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
|
|
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| workflowDockerImage, err := jsonFromDockerImage(reader) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
|
|
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| return cmp.Equal(workflowDockerImage, sonataflow.Spec.Flow), nil | ||
| } | ||
|
|
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| func readLayers(image v1.Image, workflow string) (*tar.Reader, error) { | ||
| layers, err := image.Layers() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| for i := len(layers) - 1; i >= 0; i-- { | ||
| if reader, err := readLayer(layers[i], workflow); err == nil && reader != nil { | ||
| return reader, nil | ||
| } else if err != nil { | ||
| return nil, err | ||
| } | ||
| } | ||
| return nil, fmt.Errorf("file not found %s in docker image", workflow) | ||
| } | ||
|
|
||
| func readLayer(layer v1.Layer, workflow string) (*tar.Reader, error) { | ||
| uncompressedLayer, err := layer.Uncompressed() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get uncompressed layer: %v", err) | ||
| } | ||
| defer uncompressedLayer.Close() | ||
|
|
||
| tarReader := tar.NewReader(uncompressedLayer) | ||
| for { | ||
| header, err := tarReader.Next() | ||
| if err != nil { | ||
| if err.Error() == "EOF" { | ||
| break | ||
| } | ||
| return nil, fmt.Errorf("error reading tar: %v", err) | ||
| } | ||
|
|
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| if header.Typeflag == '0' && header.Name == workflow { | ||
| return tarReader, nil | ||
| } | ||
| } | ||
|
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| return nil, nil | ||
| } | ||
|
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| func jsonFromDockerImage(reader io.Reader) (operatorapi.Flow, error) { | ||
| data, err := io.ReadAll(reader) | ||
| workflow := &operatorapi.Flow{} | ||
| if err = yaml.Unmarshal(data, workflow); err != nil { | ||
| return *workflow, err | ||
| } | ||
| return *workflow, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // Copyright 2024 Apache Software Foundation (ASF) | ||
| // | ||
| // 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 validation | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| operatorapi "github.com/apache/incubator-kie-kogito-serverless-operator/api/v1alpha08" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
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| var validators = []Validator{ImageValidator{}} | ||
|
|
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| type Validator interface { | ||
| Validate(ctx context.Context, client client.Client, sonataflow *operatorapi.SonataFlow, req ctrl.Request) error | ||
| } | ||
|
|
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| // validate the SonataFlow object, right now it's only check if workflow is in deployment has image declared as that image | ||
| // is the same as the image in the SonataFlow object | ||
| func Validate(ctx context.Context, client client.Client, sonataflow *operatorapi.SonataFlow, req ctrl.Request) error { | ||
| for _, validator := range validators { | ||
| if err := validator.Validate(ctx, client, sonataflow, req); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } |
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