COCOS-391- GCP Attestation policy#405
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #405 +/- ##
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- Coverage 56.77% 54.94% -1.84%
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Files 59 60 +1
Lines 5099 5262 +163
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- Hits 2895 2891 -4
- Misses 1903 2070 +167
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| func GenerateAttestationPolicy(endorsement *endorsement.VMGoldenMeasurement) (*config.Config, error) { | ||
| attestationPolicy := config.Config{PcrConfig: &config.PcrConfig{}, SnpCheck: &check.Config{RootOfTrust: &check.RootOfTrust{}, Policy: &check.Policy{}}} | ||
| attestationPolicy.SnpCheck.Policy.Policy = endorsement.SevSnp.Policy | ||
| attestationPolicy.SnpCheck.Policy.Measurement = endorsement.SevSnp.Measurements[2] |
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Can we make this configurable? We can the CVM is launched with more than 2 vCPUs. Also, it will be good to set fields family_id and image_id here.
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
Signed-off-by: Sammy Oina <sammyoina@gmail.com>
dborovcanin
approved these changes
Mar 19, 2025
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What type of PR is this?
This is a feature that adds generation of gcp attestation policy
What does this do?
New Features
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Which issue(s) does this PR fix/relate to?
Have you included tests for your changes?
Did you document any new/modified feature?
Notes
sequenceDiagram participant User as User participant CLI as CLI Command (NewGCPAttestationPolicy) participant FS as File System participant GCP as GCP Package User->>CLI: Execute GCP Attestation Policy Command with report file path CLI->>FS: Read attestation report file FS-->>CLI: Return binary attestation data CLI->>GCP: Extract384BitMeasurement(data) GCP-->>CLI: 384-bit measurement CLI->>GCP: GetLaunchEndorsement(measurement) GCP-->>CLI: Launch endorsement data CLI->>GCP: GenerateAttestationPolicy(endorsement) GCP-->>CLI: Attestation policy data CLI->>FS: Write attestation_policy.json CLI-->>User: Output success resultsequenceDiagram participant User as User participant CLI as CLI Command (NewDownloadGCPOvmfFile) participant FS as File System participant GCP as GCP Package User->>CLI: Execute Download GCPOVMF command with report file path CLI->>FS: Read attestation report file FS-->>CLI: Return binary attestation data CLI->>GCP: Extract384BitMeasurement(data) GCP-->>CLI: 384-bit measurement CLI->>GCP: GetLaunchEndorsement(measurement) GCP-->>CLI: Launch endorsement data CLI->>GCP: DownloadOvmfFile(endorsement.digest) GCP-->>CLI: OVMF file bytes CLI->>FS: Write ovmf.fd CLI-->>User: Signal download successsequenceDiagram participant Main as Main Function (cmd/agent/main.go) participant Server as Agent Server (agent/cvms/server/cvm.go) participant gRPC as gRPC Server Main->>Server: Call NewServer(logger, service, host) Server-->>Main: Return AgentServer instance Main->>Server: Call Start() Server->>gRPC: Initialize gRPC server using host from field gRPC-->>Server: gRPC server starts