cip-requires-two-signatures-and-two-attestations.yaml

# Copyright 2022 The Sigstore Authors.
#
# 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
#
#     https://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.

apiVersion: cosigned.sigstore.dev/v1alpha1
kind: ClusterImagePolicy
metadata:
  name: image-policy-requires-two-signatures-two-attestations
spec:
  images:
  - glob: registry.local:5000/cosigned/demo*
  authorities:
  - name: keyless-att
    keyless:
      url: http://fulcio.fulcio-system.svc
    ctlog:
      url: http://rekor.rekor-system.svc
    attestations:
    - predicateType: custom
      name: custom-keyless
      policy:
        type: cue
        data: |
          import "time"
          before: time.Parse(time.RFC3339, "2049-10-09T17:10:27Z")
          predicateType: "cosign.sigstore.dev/attestation/v1"
          predicate: {
            Timestamp: <before
          }
    - predicateType: vuln
      name: vuln-keyless
      policy:
        type: cue
        data: |
          import "time"
          before: time.Parse(time.RFC3339, "2022-04-15T17:10:27Z")
          after: time.Parse(time.RFC3339, "2022-03-09T17:10:27Z")
          predicateType: "cosign.sigstore.dev/attestation/vuln/v1"
          predicate: {
            invocation: {
              uri: "invocation.example.com/cosign-testing"
            }
            scanner: {
              uri: "fakescanner.example.com/cosign-testing"
            }
            metadata: {
              scanStartedOn: <before
              scanStartedOn: >after
              scanFinishedOn: <before
              scanFinishedOn: >after
            }
          }
  - name: key-att
    key:
      data: |
        -----BEGIN PUBLIC KEY-----
        MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEOz9FcbJM/oOkC26Wfo9paG2tYGBL
        usDLHze93DzgLaAPDsyJrygpVnL9M6SOyfyXEsjpBTUu6uFZqHua8hwAlA==
        -----END PUBLIC KEY-----
    attestations:
    - predicateType: vuln
      name: vuln-key
      policy:
        type: cue
        data: |
          import "time"
          before: time.Parse(time.RFC3339, "2022-04-15T17:10:27Z")
          after: time.Parse(time.RFC3339, "2022-03-09T17:10:27Z")
          predicateType: "cosign.sigstore.dev/attestation/vuln/v1"
          predicate: {
            invocation: {
              uri: "invocation.example.com/cosign-testing"
            }
            scanner: {
              uri: "fakescanner.example.com/cosign-testing"
            }
            metadata: {
              scanStartedOn: <before
              scanStartedOn: >after
              scanFinishedOn: <before
              scanFinishedOn: >after
            }
          }
    ctlog:
      url: http://rekor.rekor-system.svc
  - name: keyless-signature
    keyless:
      url: http://fulcio.fulcio-system.svc
    ctlog:
      url: http://rekor.rekor-system.svc
  - name: key-signature
    key:
      data: |
        -----BEGIN PUBLIC KEY-----
        MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEOz9FcbJM/oOkC26Wfo9paG2tYGBL
        usDLHze93DzgLaAPDsyJrygpVnL9M6SOyfyXEsjpBTUu6uFZqHua8hwAlA==
        -----END PUBLIC KEY-----
    ctlog:
      url: http://rekor.rekor-system.svc
  policy:
    type: cue
    data: |
      if len(authorityMatches."keyless-att".attestations) < 2 {
        keylessAttestationsErr: 1
        keylessAttestationsErrMsg: "Did not get both keyless attestations"
      }
      if len(authorityMatches."key-att".attestations) < 1 {
        keyAttestationsErr: 1
        keyAttestationsErrMsg: "Did not get key attestation"
      }
      if len(authorityMatches."keyless-signature".signatures) < 1 {
        keylessSignatureErr: 1
        keylessSignatureErrMsg: "Did not get keyless signature"
      }
      if len(authorityMatches."key-signature".signatures) < 1 {
        keySignatureErr: 1
        keySignatureErrMsg: "Did not get key signature"
      }
      authorityMatches: {
        "key-att": {
          attestations: {
            "vuln-key": [
              {subject: "PLACEHOLDER", issuer: "PLACEHOLDER"},
            ]
          }
        }
        "keyless-att": {
          attestations: {
            "vuln-keyless": [
              {subject: "PLACEHOLDER", issuer: "PLACEHOLDER"},
            ],
            "custom-keyless": [
              {subject: "PLACEHOLDER", issuer: "PLACEHOLDER"},
            ],
          }
        }
        "keyless-signature": {
          signatures: [
            {subject: "PLACEHOLDER", issuer: "PLACEHOLDER"},
          ]
        }
        "key-signature": {
          signatures: [
            {subject: "PLACEHOLDER", issuer: "PLACEHOLDER"},
          ]
        }
      }