Announcing Linkerd2 edge-19.8.2

Carol Scott

Hello Linkerd community!¬†ūüĎč

We are thrilled to announce that Linkerd2 edge-19.8.2 has been released!¬†ūüéą

This is an edge release of Linkerd! The latest stable release is stable-2.4.0.

To install this edge release, run: curl | sh 

This edge release introduces the new Linkerd control plane Helm chart, named linkerd2. Helm users can now install and remove the Linkerd control plane by using the helm install and helm delete commands. Proxy injection also now uses Helm charts.

No changes were made to the existing linkerd install behavior.

For detailed installation steps using Helm, see the notes for PR #3146.

  • CLI
    • Updated¬†linkerd top¬†and¬†linkerd profile --tap¬†to require¬†¬†RBAC privileges, see¬†¬†for more info
    • Modified¬†¬†APIService to enable usage in¬†kubectl auth can-i¬†commands
    • Introduced¬†--restrict-dashboard-privileges¬†flag to¬†linkerd install¬†command, to restrict the dashboard's default privileges to disallow tap
  • Controller
    • Introduced a new ClusterRole,¬†linkerd-linkerd-tap-admin, which gives cluster-wide tap privileges. Also introduced a new ClusterRoleBinding,¬†linkerd-linkerd-web-admin, which binds the¬†linkerd-web¬†service account to the new tap ClusterRole
    • Removed successfully completed¬†linkerd-heartbeat¬†jobs from pod listing in the linkerd control plane to streamline¬†get po¬†output (thanks @Pothulapati!)
  • Web UI
    • Updated the web server to use the new tap APIService. If the¬†linkerd-web¬†service account is not authorized to tap resources, users will see a link to documentation to remedy the error
As always, we're excited to hear your feedback. Please try the new release and 
send questions/comments to this mailing list, and report bugs via GitHub.


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