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Introduce spec.code.sha256 field to help with s3 code changes #88

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merged 5 commits into from
May 7, 2024
Merged

Introduce spec.code.sha256 field to help with s3 code changes #88

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5fd9a01
Update to ACK runtime `v0.25.0`, code-generator `v0.25.0` (#87)
ack-bot Mar 22, 2023
3ba2ca7
revise
Vandita2020 Mar 31, 2024
9981248
E2E tests
Vandita2020 Apr 9, 2024
b955873
New revision with Architecture update
Vandita2020 May 2, 2024
6024afe
Merge branch 'main' into s3_codeSHA
Vandita2020 May 7, 2024
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6 changes: 3 additions & 3 deletions apis/v1alpha1/ack-generate-metadata.yaml
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Original file line number Diff line number Diff line change
@@ -1,13 +1,13 @@
ack_generate_info:
build_date: "2024-04-23T20:03:09Z"
build_date: "2024-05-02T22:56:12Z"
build_hash: 37f4ba2b5a121a8786bc516e9ec4aa0b8b590c7d
go_version: go1.21.6
version: v0.33.0-1-g37f4ba2
api_directory_checksum: c67645b15db39980ba51ff6303c34c5aafc55a9e
api_directory_checksum: 93229b2f11a89ef43fc0ef07ea1beb425e9aaf17
api_version: v1alpha1
aws_sdk_go_version: v1.44.181
generator_config_info:
file_checksum: f0fa26f0d3c577f5800eb183e0ec1cea865a75ee
file_checksum: 4038e6b669d1d6966f8e729a3ed323bf03593680
original_file_name: generator.yaml
last_modification:
reason: API generation
9 changes: 8 additions & 1 deletion apis/v1alpha1/generator.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,13 @@ resources:
- path: Status.State
in: [ "Active" ]
fields:
Code.SHA256:
type: string
compare:
is_ignored: true
set:
- ignore: "to"
method: Create
Code.S3Bucket:
references:
resource: Bucket
Expand Down Expand Up @@ -72,7 +79,7 @@ resources:
path: ReservedConcurrentExecutions
Code:
compare:
is_ignored: true
is_ignored: false
set:
- ignore: true
operation: ReadOne
Expand Down
1 change: 1 addition & 0 deletions apis/v1alpha1/types.go
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5 changes: 5 additions & 0 deletions apis/v1alpha1/zz_generated.deepcopy.go
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2 changes: 2 additions & 0 deletions config/crd/bases/lambda.services.k8s.aws_functions.yaml
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Expand Up @@ -70,6 +70,8 @@ spec:
type: string
s3ObjectVersion:
type: string
sha256:
type: string
zipFile:
format: byte
type: string
Expand Down
9 changes: 8 additions & 1 deletion generator.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,13 @@ resources:
- path: Status.State
in: [ "Active" ]
fields:
Code.SHA256:
type: string
compare:
is_ignored: true
set:
- ignore: "to"
method: Create
Code.S3Bucket:
references:
resource: Bucket
Expand Down Expand Up @@ -72,7 +79,7 @@ resources:
path: ReservedConcurrentExecutions
Code:
compare:
is_ignored: true
is_ignored: false
set:
- ignore: true
operation: ReadOne
Expand Down
2 changes: 2 additions & 0 deletions helm/crds/lambda.services.k8s.aws_functions.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,8 @@ spec:
type: string
s3ObjectVersion:
type: string
sha256:
type: string
zipFile:
format: byte
type: string
Expand Down
35 changes: 35 additions & 0 deletions pkg/resource/function/delta.go
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143 changes: 48 additions & 95 deletions pkg/resource/function/hooks.go
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Original file line number Diff line number Diff line change
Expand Up @@ -102,25 +102,15 @@ func (rm *resourceManager) customUpdateFunction(
}
}
}
if delta.DifferentAt("Spec.Architectures") {
err = rm.updateFunctionArchitectures(ctx, desired, latest)
if err != nil {
return nil, err
}
}

// Only try to update Spec.Code or Spec.Configuration at once. It is
// not correct to sequentially call UpdateFunctionConfiguration and
// UpdateFunctionCode because both of them can put the function in a
// Pending state.
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switch {
case delta.DifferentAt("Spec.Code"):
err = rm.updateFunctionCode(ctx, desired, delta)
case delta.DifferentAt("Spec.Code.ImageURI") || delta.DifferentAt("Spec.Code.SHA256") || delta.DifferentAt("Spec.Architectures"):
err = rm.updateFunctionCode(ctx, desired, delta, latest)
if err != nil {
// If the source image is not available, we get an error like this:
// "InvalidParameterValueException: Source image 1234567890.dkr.ecr.us-east-2.amazonaws.com/my-lambda:my-tag does not exist. Provide a valid source image."
// Because this may be recoverable (i.e. the image may be pushed once a build completes),
// we requeue the function for reconciliation after one minute.
if strings.Contains(err.Error(), "Provide a valid source image.") {
return nil, requeueWaitWhileSourceImageDoesNotExist
} else {
Expand All @@ -131,6 +121,7 @@ func (rm *resourceManager) customUpdateFunction(
"Spec.Code",
"Spec.Tags",
"Spec.ReservedConcurrentExecutions",
"Spec.FunctionEventInvokeConfig",
"Spec.CodeSigningConfigARN"):
err = rm.updateFunctionConfiguration(ctx, desired, delta)
if err != nil {
Expand Down Expand Up @@ -377,16 +368,17 @@ func (rm *resourceManager) updateFunctionTags(
return nil
}

// updateFunctionArchitectures calls UpdateFunctionCode to update architecture for lambda
// updateFunctionsCode calls UpdateFunctionCode to update a specific lambda
// function code.
func (rm *resourceManager) updateFunctionArchitectures(
func (rm *resourceManager) updateFunctionCode(
ctx context.Context,
desired *resource,
delta *ackcompare.Delta,
latest *resource,
) error {
var err error
rlog := ackrtlog.FromContext(ctx)
exit := rlog.Trace("rm.updateFunctionArchitectures")
exit := rlog.Trace("rm.updateFunctionCode")
defer exit(err)

dspec := desired.ko.Spec
Expand All @@ -400,60 +392,30 @@ func (rm *resourceManager) updateFunctionArchitectures(
input.Architectures = nil
}

if latest.ko.Spec.Code != nil {
if latest.ko.Spec.PackageType != nil && *latest.ko.Spec.PackageType == "Image" {
input.ImageUri = latest.ko.Spec.Code.ImageURI
} else if latest.ko.Spec.PackageType != nil && *latest.ko.Spec.PackageType == "Zip" {
input.S3Bucket = latest.ko.Spec.Code.S3Bucket
input.S3Key = latest.ko.Spec.Code.S3Key
}
}

_, err = rm.sdkapi.UpdateFunctionCodeWithContext(ctx, input)
rm.metrics.RecordAPICall("UPDATE", "UpdateFunctionArchitectures", err)
if err != nil {
return err
}

return nil
}

// updateFunctionsCode calls UpdateFunctionCode to update a specific lambda
// function code.
func (rm *resourceManager) updateFunctionCode(
ctx context.Context,
desired *resource,
delta *ackcompare.Delta,
) error {
var err error
rlog := ackrtlog.FromContext(ctx)
exit := rlog.Trace("rm.updateFunctionCode")
defer exit(err)

if delta.DifferentAt("Spec.Code.S3Key") &&
!delta.DifferentAt("Spec.Code.S3Bucket") &&
!delta.DifferentAt("Spec.Code.S3ObjectVersion") &&
!delta.DifferentAt("Spec.Code.ImageURI") {
log := ackrtlog.FromContext(ctx)
log.Info("updating code.s3Key field is not currently supported.")
return nil
}

dspec := desired.ko.Spec
input := &svcsdk.UpdateFunctionCodeInput{
FunctionName: aws.String(*dspec.Name),
}

if dspec.Code != nil {
switch {
case dspec.Code.ImageURI != nil:
input.ImageUri = dspec.Code.ImageURI
case dspec.Code.S3Bucket != nil,
dspec.Code.S3Key != nil,
dspec.Code.S3ObjectVersion != nil:
input.S3Bucket = dspec.Code.S3Bucket
input.S3Key = dspec.Code.S3Key
input.S3ObjectVersion = dspec.Code.S3ObjectVersion
if delta.DifferentAt("Spec.Code.SHA256") && dspec.Code.SHA256 != nil {
if dspec.Code.S3Key != nil {
input.S3Key = aws.String(*dspec.Code.S3Key)
}
if dspec.Code.S3Bucket != nil {
input.S3Bucket = aws.String(*dspec.Code.S3Bucket)
}
if dspec.Code.S3ObjectVersion != nil {
input.S3ObjectVersion = aws.String(*dspec.Code.S3ObjectVersion)
}
} else if delta.DifferentAt("Spec.Code.ImageURI") && dspec.Code.ImageURI != nil {
if dspec.Code.ImageURI != nil {
input.ImageUri = aws.String(*dspec.Code.ImageURI)
}

} else { // We need to pass the latest code to Update API call,
//if there is change in architecture and no change in Code
if latest.ko.Spec.PackageType != nil && *latest.ko.Spec.PackageType == "Image" {
input.ImageUri = latest.ko.Spec.Code.ImageURI
Comment on lines +413 to +414
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I think we only need to update the image if the ImageURI changed

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This code is for passing code values if there is change in Architecture field. To update Architecture field we need to pass the code again too, this handles case that even if there is no change in code, it will just pass the current values of it along with updated architecture field.

} else if latest.ko.Spec.PackageType != nil && *latest.ko.Spec.PackageType == "Zip" {
input.S3Bucket = latest.ko.Spec.Code.S3Bucket
input.S3Key = latest.ko.Spec.Code.S3Key
}
}
}

Expand Down Expand Up @@ -501,36 +463,27 @@ func customPreCompare(
a *resource,
b *resource,
) {
// No need to compare difference in S3 Key/Bucket/ObjectVersion. As in sdkFind() there is a copy 'ko := r.ko.DeepCopy()'
// of S3 Key/Bucket/ObjectVersion passed. This 'ko' then stores the values of latest S3 fields which API returns
// and compares it with desired field values. Since the API doesn't return values of S3 fields, it doesn't
// notice any changes between desired and latest, hence fails to recognize the update in the values.

// To solve this we created a new field 'Code.SHA256' to store the hash value of deployment package. Any change
// in hash value refers to change in S3 Key/Bucket/ObjectVersion and controller can recognize the change in
// desired and latest value of 'Code.SHA256' and hence calls the update function.

if ackcompare.HasNilDifference(a.ko.Spec.Code, b.ko.Spec.Code) {
delta.Add("Spec.Code", a.ko.Spec.Code, b.ko.Spec.Code)
} else if a.ko.Spec.Code != nil && b.ko.Spec.Code != nil {
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Should we consider removing this customPreCompare, generate all this code, and then rely on the custom update function to lookup *a.ko.Spec.PackageType == "Image"|"Zip"

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I think it would be better to generate this code for Code.S3Bucket, Code.S3Key and Code.ImageURI, but we will still need this custom compare code for Code.SHA256, as that is not auto-generated and we need to check if it has been changes in order to let ACK know that deployment package has been changed.

if ackcompare.HasNilDifference(a.ko.Spec.Code.ImageURI, b.ko.Spec.Code.ImageURI) {
delta.Add("Spec.Code.ImageURI", a.ko.Spec.Code.ImageURI, b.ko.Spec.Code.ImageURI)
} else if a.ko.Spec.Code.ImageURI != nil && b.ko.Spec.Code.ImageURI != nil {
if *a.ko.Spec.Code.ImageURI != *b.ko.Spec.Code.ImageURI {
delta.Add("Spec.Code.ImageURI", a.ko.Spec.Code.ImageURI, b.ko.Spec.Code.ImageURI)
}
}
//TODO(hialylmh) handle Spec.Code.S3bucket changes
// if ackcompare.HasNilDifference(a.ko.Spec.Code.S3Bucket, b.ko.Spec.Code.S3Bucket) {
// delta.Add("Spec.Code.S3Bucket", a.ko.Spec.Code.S3Bucket, b.ko.Spec.Code.S3Bucket)
// } else if a.ko.Spec.Code.S3Bucket != nil && b.ko.Spec.Code.S3Bucket != nil {
// if *a.ko.Spec.Code.S3Bucket != *b.ko.Spec.Code.S3Bucket {
// delta.Add("Spec.Code.S3Bucket", a.ko.Spec.Code.S3Bucket, b.ko.Spec.Code.S3Bucket)
// }
// }
if ackcompare.HasNilDifference(a.ko.Spec.Code.S3Key, b.ko.Spec.Code.S3Key) {
delta.Add("Spec.Code.S3Key", a.ko.Spec.Code.S3Key, b.ko.Spec.Code.S3Key)
} else if a.ko.Spec.Code.S3Key != nil && b.ko.Spec.Code.S3Key != nil {
if *a.ko.Spec.Code.S3Key != *b.ko.Spec.Code.S3Key {
delta.Add("Spec.Code.S3Key", a.ko.Spec.Code.S3Key, b.ko.Spec.Code.S3Key)
}
}
if ackcompare.HasNilDifference(a.ko.Spec.Code.S3ObjectVersion, b.ko.Spec.Code.S3ObjectVersion) {
delta.Add("Spec.Code.S3ObjectVersion", a.ko.Spec.Code.S3ObjectVersion, b.ko.Spec.Code.S3ObjectVersion)
} else if a.ko.Spec.Code.S3ObjectVersion != nil && b.ko.Spec.Code.S3ObjectVersion != nil {
if *a.ko.Spec.Code.S3ObjectVersion != *b.ko.Spec.Code.S3ObjectVersion {
delta.Add("Spec.Code.S3ObjectVersion", a.ko.Spec.Code.S3ObjectVersion, b.ko.Spec.Code.S3ObjectVersion)
if a.ko.Spec.PackageType != nil && *a.ko.Spec.PackageType == "Zip" {
if a.ko.Spec.Code.SHA256 != nil {
if ackcompare.HasNilDifference(a.ko.Spec.Code.SHA256, b.ko.Status.CodeSHA256) {
delta.Add("Spec.Code.SHA256", a.ko.Spec.Code.SHA256, b.ko.Status.CodeSHA256)
} else if a.ko.Spec.Code.SHA256 != nil && b.ko.Status.CodeSHA256 != nil {
if *a.ko.Spec.Code.SHA256 != *b.ko.Status.CodeSHA256 {
delta.Add("Spec.Code.SHA256", a.ko.Spec.Code.SHA256, b.ko.Status.CodeSHA256)
}
}
}
}
}
Expand Down
19 changes: 19 additions & 0 deletions test/e2e/resources/function_code_s3.yaml
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@@ -0,0 +1,19 @@
apiVersion: lambda.services.k8s.aws/v1alpha1
kind: Function
metadata:
name: $FUNCTION_NAME
annotations:
services.k8s.aws/region: $AWS_REGION
spec:
name: $FUNCTION_NAME
architectures: [$ARCHITECTURES]
code:
s3Bucket: $BUCKET_NAME
s3Key: $LAMBDA_FILE_NAME
sha256: $HASH
role: $LAMBDA_ROLE
runtime: python3.9
handler: main
description: function created by ACK lambda-controller e2e tests
reservedConcurrentExecutions: $RESERVED_CONCURRENT_EXECUTIONS
codeSigningConfigARN: "$CODE_SIGNING_CONFIG_ARN"
2 changes: 2 additions & 0 deletions test/e2e/resources/lambda_function/updated_main.py
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@@ -0,0 +1,2 @@
if __name__ == "__main__":
print("Updated Hello ACK!")
11 changes: 11 additions & 0 deletions test/e2e/service_bootstrap.py
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Expand Up @@ -44,6 +44,11 @@
LAMBDA_FUNCTION_FILE_PATH = f"./resources/lambda_function/{LAMBDA_FUNCTION_FILE}"
LAMBDA_FUNCTION_FILE_PATH_ZIP = f"./resources/lambda_function/{LAMBDA_FUNCTION_FILE_ZIP}"

LAMBDA_FUNCTION_UPDATED_FILE = "updated_main.py"
LAMBDA_FUNCTION_UPDATED_FILE_ZIP = "updated_main.zip"
LAMBDA_FUNCTION_UPDATED_FILE_PATH = f"./resources/lambda_function/{LAMBDA_FUNCTION_UPDATED_FILE}"
LAMBDA_FUNCTION_UPDATED_FILE_PATH_ZIP = f"./resources/lambda_function/{LAMBDA_FUNCTION_UPDATED_FILE_ZIP}"

AWS_SIGNING_PLATFORM_ID = "AWSLambda-SHA384-ECDSA"

def zip_function_file(src: str, dst: str):
Expand Down Expand Up @@ -139,6 +144,12 @@ def service_bootstrap() -> Resources:
LAMBDA_FUNCTION_FILE_PATH_ZIP,
resources.FunctionsBucket.name,
)

zip_function_file(LAMBDA_FUNCTION_UPDATED_FILE_PATH, LAMBDA_FUNCTION_UPDATED_FILE_PATH_ZIP)
upload_function_to_bucket(
LAMBDA_FUNCTION_UPDATED_FILE_PATH_ZIP,
resources.FunctionsBucket.name,
)
except BootstrapFailureException as ex:
exit(254)
return resources
Expand Down
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