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overcast local AWS emulator

CloudFront operations

Every CloudFront operation Overcast declares — 88 of 88 implemented — with status, behaviour notes and a link to the AWS API reference for each.

All 88 listed operations are implemented. Back to CloudFront.

Summary

Category	✅ Supported
Distributions	7
Invalidations	3
OAC / OAI	11
Tagging	3
Policies	18
Functions	8
Keys & Crypto	12
Monitoring	8
FLE	12
Deployment	6

Endpoints

Distributions

Operation	Status	Notes	AWS Docs
`CreateDistribution`	✅ Supported	CallerReference idempotency; Status always “Deployed”	docs
`GetDistribution`	✅ Supported	Returns ETag header	docs
`GetDistributionConfig`	✅ Supported	Returns DistributionConfig portion + ETag	docs
`UpdateDistribution`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteDistribution`	✅ Supported	Requires If-Match + Enabled=false	docs
`ListDistributions`	✅ Supported	Marker/MaxItems pagination via serviceutil.Paginate	docs
`CreateDistributionWithTags`	✅ Supported	Creates distribution + tags atomically; custom_id tag support	docs

Invalidations

Operation	Status	Notes	AWS Docs
`CreateInvalidation`	✅ Supported	Supports path and tag invalidations (#tag); Status instantly “Completed”	docs
`GetInvalidation`	✅ Supported	Returns invalidation by distribution + invalidation ID	docs
`ListInvalidations`	✅ Supported	Marker/MaxItems pagination	docs

OAC / OAI

Operation	Status	Notes	AWS Docs
`CreateOriginAccessControl`	✅ Supported	Generates ID, returns ETag	docs
`GetOriginAccessControl`	✅ Supported	Returns OAC by ID with ETag	docs
`UpdateOriginAccessControl`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteOriginAccessControl`	✅ Supported	Requires If-Match ETag	docs
`ListOriginAccessControls`	✅ Supported	Marker/MaxItems pagination	docs
`CreateCloudFrontOriginAccessIdentity`	✅ Supported	CallerReference required; generates S3CanonicalUserId	docs
`GetCloudFrontOriginAccessIdentity`	✅ Supported	Returns OAI by ID with ETag	docs
`GetCloudFrontOriginAccessIdentityConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateCloudFrontOriginAccessIdentity`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteCloudFrontOriginAccessIdentity`	✅ Supported	Requires If-Match ETag	docs
`ListCloudFrontOriginAccessIdentities`	✅ Supported	Marker/MaxItems pagination	docs

Tagging

Operation	Status	Notes	AWS Docs
`ListTagsForResource`	✅ Supported	Returns tags by resource ARN	docs
`TagResource`	✅ Supported	Merges tags into existing set	docs
`UntagResource`	✅ Supported	Removes specified tag keys	docs

Policies

Operation	Status	Notes	AWS Docs
`CreateCachePolicy`	✅ Supported	Generates ID, returns ETag	docs
`GetCachePolicy`	✅ Supported	Returns policy by ID with ETag	docs
`GetCachePolicyConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateCachePolicy`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteCachePolicy`	✅ Supported	Requires If-Match ETag	docs
`ListCachePolicies`	✅ Supported	Marker/MaxItems pagination	docs
`CreateOriginRequestPolicy`	✅ Supported	Generates ID, returns ETag	docs
`GetOriginRequestPolicy`	✅ Supported	Returns policy by ID with ETag	docs
`GetOriginRequestPolicyConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateOriginRequestPolicy`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteOriginRequestPolicy`	✅ Supported	Requires If-Match ETag	docs
`ListOriginRequestPolicies`	✅ Supported	Marker/MaxItems pagination	docs
`CreateResponseHeadersPolicy`	✅ Supported	Generates ID, returns ETag	docs
`GetResponseHeadersPolicy`	✅ Supported	Returns policy by ID with ETag	docs
`GetResponseHeadersPolicyConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateResponseHeadersPolicy`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteResponseHeadersPolicy`	✅ Supported	Requires If-Match ETag	docs
`ListResponseHeadersPolicies`	✅ Supported	Marker/MaxItems pagination	docs

Functions

Operation	Status	Notes	AWS Docs
`CreateFunction`	✅ Supported	Stores code + config; Stage=DEVELOPMENT; returns ETag	docs
`DescribeFunction`	✅ Supported	Returns FunctionSummary with metadata	docs
`GetFunction`	✅ Supported	Returns raw function code (base64) with ETag	docs
`UpdateFunction`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteFunction`	✅ Supported	Requires If-Match ETag	docs
`ListFunctions`	✅ Supported	Filters by Stage query param; MaxItems pagination	docs
`TestFunction`	✅ Supported	Returns a fixed success result without running the code; a function attached to a behaviour does execute on requests through the distribution	docs
`PublishFunction`	✅ Supported	Promotes DEVELOPMENT → LIVE stage	docs

Keys & Crypto

Operation	Status	Notes	AWS Docs
`CreateKeyGroup`	✅ Supported	Generates ID, returns ETag	docs
`GetKeyGroup`	✅ Supported	Returns key group by ID with ETag	docs
`GetKeyGroupConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateKeyGroup`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteKeyGroup`	✅ Supported	Requires If-Match ETag	docs
`ListKeyGroups`	✅ Supported	MaxItems pagination	docs
`CreatePublicKey`	✅ Supported	CallerReference dedup; generates ID + ETag	docs
`GetPublicKey`	✅ Supported	Returns public key by ID with ETag	docs
`GetPublicKeyConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdatePublicKey`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeletePublicKey`	✅ Supported	Requires If-Match ETag	docs
`ListPublicKeys`	✅ Supported	MaxItems pagination	docs

Monitoring

Operation	Status	Notes	AWS Docs
`CreateMonitoringSubscription`	✅ Supported	Per-distribution; requires existing distribution	docs
`GetMonitoringSubscription`	✅ Supported	Returns subscription by distribution ID	docs
`DeleteMonitoringSubscription`	✅ Supported	Removes subscription for distribution	docs
`CreateRealtimeLogConfig`	✅ Supported	Name-based; generates ARN; duplicate name check	docs
`GetRealtimeLogConfig`	✅ Supported	Lookup by Name or ARN in request body	docs
`UpdateRealtimeLogConfig`	✅ Supported	Updates by Name in request body	docs
`DeleteRealtimeLogConfig`	✅ Supported	Deletes by Name or ARN in request body	docs
`ListRealtimeLogConfigs`	✅ Supported	MaxItems pagination	docs

FLE

Operation	Status	Notes	AWS Docs
`CreateFieldLevelEncryptionConfig`	✅ Supported	CallerReference required; generates ID	docs
`GetFieldLevelEncryption`	✅ Supported	Returns FLE config by ID with ETag	docs
`GetFieldLevelEncryptionConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateFieldLevelEncryptionConfig`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteFieldLevelEncryption`	✅ Supported	Requires If-Match ETag	docs
`ListFieldLevelEncryptionConfigs`	✅ Supported	MaxItems pagination	docs
`CreateFieldLevelEncryptionProfile`	✅ Supported	CallerReference required; generates ID	docs
`GetFieldLevelEncryptionProfile`	✅ Supported	Returns FLE profile by ID with ETag	docs
`GetFieldLevelEncryptionProfileConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateFieldLevelEncryptionProfile`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteFieldLevelEncryptionProfile`	✅ Supported	Requires If-Match ETag	docs
`ListFieldLevelEncryptionProfiles`	✅ Supported	MaxItems pagination	docs

Deployment

Operation	Status	Notes	AWS Docs
`CreateContinuousDeploymentPolicy`	✅ Supported	Generates ID, returns ETag	docs
`GetContinuousDeploymentPolicy`	✅ Supported	Returns policy by ID with ETag	docs
`GetContinuousDeploymentPolicyConfig`	✅ Supported	Returns config portion + ETag	docs
`UpdateContinuousDeploymentPolicy`	✅ Supported	Requires If-Match ETag; bumps version	docs
`DeleteContinuousDeploymentPolicy`	✅ Supported	Requires If-Match ETag	docs
`ListContinuousDeploymentPolicies`	✅ Supported	MaxItems pagination	docs

Emulator extensions

Operations Overcast serves that appear in no AWS model, so no SDK calls them and no AWS reference page describes them. They sit outside the operation counts above.

Operation	Status	Notes
`ProxyRequest`	✅ Supported	Path-pattern matching, origin forwarding (dialled locally when Overcast answers for the origin), GET response caching, CloudFront Functions, origin-group failover, geo restriction and custom error responses

CloudFront — quick start, what works, and the differences from AWS
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