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Important

Self-managed SingleStore will soon transition from version 9.1 RC to version 10. This new semantic versioning scheme will provide SingleStore with finer control over engine and feature releases that were not possible with the current versioning scheme.

In the interim, SingleStore 9.1 RC can be used to preview, evaluate, and provide feedback on the new and upcoming features in SingleStore 10 prior to its general availability. Ahead of this transition, SingleStore 9.0 is recommended for production workloads, which can later be upgraded to SingleStore 10.

Run SingleStore with Volume Mounts and Restricted Pod Security

To run SingleStore within a restricted security context, the aggregatorSpec, leafSpec, and backupSpec all support a securityContext field for overriding the pod security context to meet Kubernetes requirements. Additionally, the nodeVolumes field allows for mounting arbitrary volumes which, in this example, is required to allow writing to the /tmp directory.

aggregatorSpec:
  nodeVolumes:
    volumeMounts:
    - mountPath: /tmp
      name: tmp
    volumes:
    - emptyDir: {}
      name: tmp
  securityContext:
    allowPrivilegeEscalation: false
    capabilities:
      drop:
      - ALL
    readOnlyRootFilesystem: true
    runAsNonRoot: true
    runAsUser: 999
    seccompProfile:
      type: RuntimeDefault
backupSpec:
  securityContext:
    allowPrivilegeEscalation: false
    capabilities:
      drop:
      - ALL
    readOnlyRootFilesystem: true
    runAsNonRoot: true
    runAsUser: 999
    seccompProfile:
      type: RuntimeDefault

Add the following to the container in the Operator deployment to allow it to meet the restricted security requirements.

securityContext:
  allowPrivilegeEscalation: false
  capabilities:
    drop:
    - ALL
  readOnlyRootFilesystem: true
  runAsNonRoot: true
  runAsUser: 10001

Refer to Enforce Pod Security Standards with Namespace Labels for more information.

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

  1. (Optional) Run the following command to view the associated signature files.

    curl undefined

  2. Download the signature file from the SingleStore release server.

    • Option 1: Click the Download Signature button next to the SingleStore file.

    • Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.

    • Option 3: Run the following command to download the signature file.

      curl -O undefined

  3. After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

    echo -n undefined |
        cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
          --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
          --bundle undefined \
          --new-bundle-format -
    Verified OK

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