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AB#2644 Fetch measurements from CDN (#653)

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* Fetch measurements from CDN

* Perform metadata validation on fetched measurements

* Remove deprecated public bucket

Signed-off-by: Daniel Weiße <dw@edgeless.systems>
This commit is contained in:
Daniel Weiße 2022-11-28 10:27:33 +01:00 • committed by GitHub
parent c978329839
commit d52f3db2a3
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
16 changed files with 406 additions and 144 deletions
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72
cli/internal/cmd/configfetchmeasurements_test.go
View file

@ -8,8 +8,8 @@ package cmd
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"net/http"
"net/url"
@ -109,8 +109,8 @@ func TestUpdateURLs(t *testing.T) {
},
},
flags: &fetchMeasurementsFlags{},
wantMeasurementsURL: constants.S3PublicBucket + "some/image/path/image-123456/measurements.json",
wantMeasurementsSigURL: constants.S3PublicBucket + "some/image/path/image-123456/measurements.json.sig",
wantMeasurementsURL: constants.CDNRepositoryURL + "/" + constants.CDNMeasurementsPath + "/someImageVersion/gcp/measurements.json",
wantMeasurementsSigURL: constants.CDNRepositoryURL + "/" + constants.CDNMeasurementsPath + "/someImageVersion/gcp/measurements.json.sig",
},
"both set by user": {
conf: &config.Config{},
@ -127,9 +127,7 @@ func TestUpdateURLs(t *testing.T) {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
err := tc.flags.updateURLs(context.Background(), tc.conf, &stubImageFetcher{
reference: "some/image/path/image-123456",
})
err := tc.flags.updateURLs(tc.conf)
assert.NoError(err)
assert.Equal(tc.wantMeasurementsURL, tc.flags.measurementsURL.String())
})
@ -152,32 +150,57 @@ func newTestClient(fn roundTripFunc) *http.Client {
}
func TestConfigFetchMeasurements(t *testing.T) {
measurements := `1: fPRxd3lV3uybnSVhcBmM6XLzcvMitXW78G0RRuQxYGc=
2: PUWM/lXMA+ofRD8VYr7sjfUcdeFKn8+acjShPxmOeWk=
3: PUWM/lXMA+ofRD8VYr7sjfUcdeFKn8+acjShPxmOeWk=
4: HaV5ivUAGzMxmKkfKjcG3wmW08MRUWr+vsfIMVQpOH0=
5: PemdXV59WnLLzPz0F4GGCTKm8KbHskPRvon1dtNw7oY=
7: 8dI/6SUmQ5sd8+bulPDpJ8ghs0UX0+fgLlW8kutAYKw=
8: XJ5IBWy6b6vqojkTsk/GLOWyfNUB2qaf58+JjMYiAB4=
9: Gw5gq8D1WXfz46sF/OKiWbkBssyt4ayGybzNyV9cUCQ=
// Cosign private key used to sign the measurements.
// Generated with: cosign generate-key-pair
// Password left empty.
//
// -----BEGIN ENCRYPTED COSIGN PRIVATE KEY-----
// eyJrZGYiOnsibmFtZSI6InNjcnlwdCIsInBhcmFtcyI6eyJOIjozMjc2OCwiciI6
// OCwicCI6MX0sInNhbHQiOiJlRHVYMWRQMGtIWVRnK0xkbjcxM0tjbFVJaU92eFVX
// VXgvNi9BbitFVk5BPSJ9LCJjaXBoZXIiOnsibmFtZSI6Im5hY2wvc2VjcmV0Ym94
// Iiwibm9uY2UiOiJwaWhLL2txNmFXa2hqSVVHR3RVUzhTVkdHTDNIWWp4TCJ9LCJj
// aXBoZXJ0ZXh0Ijoidm81SHVWRVFWcUZ2WFlQTTVPaTVaWHM5a255bndZU2dvcyth
// VklIeHcrOGFPamNZNEtvVjVmL3lHRHR0K3BHV2toanJPR1FLOWdBbmtsazFpQ0c5
// a2czUXpPQTZsU2JRaHgvZlowRVRZQ0hLeElncEdPRVRyTDlDenZDemhPZXVSOXJ6
// TDcvRjBBVy9vUDVqZXR3dmJMNmQxOEhjck9kWE8yVmYxY2w0YzNLZjVRcnFSZzlN
// dlRxQWFsNXJCNHNpY1JaMVhpUUJjb0YwNHc9PSJ9
// -----END ENCRYPTED COSIGN PRIVATE KEY-----
cosignPublicKey := []byte("-----BEGIN PUBLIC KEY-----\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEu78QgxOOcao6U91CSzEXxrKhvFTt\nJHNy+eX6EMePtDm8CnDF9HSwnTlD0itGJ/XHPQA5YX10fJAqI1y+ehlFMw==\n-----END PUBLIC KEY-----")
measurements := `{
"csp": "gcp",
"image": "v999.999.999",
"measurements": {
"0": "0000000000000000000000000000000000000000000000000000000000000000",
"1": "1111111111111111111111111111111111111111111111111111111111111111",
"2": "2222222222222222222222222222222222222222222222222222222222222222",
"3": "3333333333333333333333333333333333333333333333333333333333333333",
"4": "4444444444444444444444444444444444444444444444444444444444444444",
"5": "5555555555555555555555555555555555555555555555555555555555555555",
"6": "6666666666666666666666666666666666666666666666666666666666666666"
}
}
`
signature := "MEUCIFdJ5dH6HDywxQWTUh9Bw77wMrq0mNCUjMQGYP+6QsVmAiEAmazj/L7rFGA4/Gz8y+kI5h5E5cDgc3brihvXBKF6qZA="
signature := "MEYCIQDRAQNK2NjHJBGrnw3HQAyBsXMCmVCptBdgA6VZ3IlyiAIhAPG42waF1aFZq7dnjP3b2jsMNUtaKYDQQSazW1AX8jgF"
client := newTestClient(func(req *http.Request) *http.Response {
if req.URL.String() == "https://public-edgeless-constellation.s3.us-east-2.amazonaws.com/someImage/measurements.json" {
if req.URL.String() == "https://cdn.confidential.cloud/constellation/v1/measurements/v999.999.999/gcp/measurements.json" {
return &http.Response{
StatusCode: http.StatusOK,
Body: io.NopCloser(bytes.NewBufferString(measurements)),
Header: make(http.Header),
}
}
if req.URL.String() == "https://public-edgeless-constellation.s3.us-east-2.amazonaws.com/someImage/measurements.json.sig" {
if req.URL.String() == "https://cdn.confidential.cloud/constellation/v1/measurements/v999.999.999/gcp/measurements.json.sig" {
return &http.Response{
StatusCode: http.StatusOK,
Body: io.NopCloser(bytes.NewBufferString(signature)),
Header: make(http.Header),
}
}
fmt.Println("unexpected request", req.URL.String())
return &http.Response{
StatusCode: http.StatusNotFound,
Body: io.NopCloser(bytes.NewBufferString("Not found.")),
@ -215,23 +238,12 @@ func TestConfigFetchMeasurements(t *testing.T) {
fileHandler := file.NewHandler(afero.NewMemMapFs())
gcpConfig := defaultConfigWithExpectedMeasurements(t, config.Default(), cloudprovider.GCP)
gcpConfig.Image = "someImage"
gcpConfig.Image = "v999.999.999"
err := fileHandler.WriteYAML(constants.ConfigFilename, gcpConfig, file.OptMkdirAll)
require.NoError(err)
assert.NoError(configFetchMeasurements(cmd, tc.verifier, fileHandler, client, &stubImageFetcher{
reference: "someImage",
}))
assert.NoError(configFetchMeasurements(cmd, tc.verifier, cosignPublicKey, fileHandler, client))
})
}
}
type stubImageFetcher struct {
reference string
fetchReferenceErr error
}
func (f *stubImageFetcher) FetchReference(_ context.Context, _ *config.Config) (string, error) {
return f.reference, f.fetchReferenceErr
}