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conduit v22.4.1 Release Notes

  • 0️⃣ In order to support having custom resources in the default Linkerd installation, the CLI install flow is now always a 2-step process where linkerd install --crds must be run first to install CRDs only and then linkerd install is run to install everything else. This more closely aligns the CLI install flow with the Helm install flow where the CRDs are a separate chart. This also applies to ⬆️ linkerd upgrade. Also, the config and control-plane sub-commands have been ✂ removed from both linkerd install and linkerd upgrade.

    🚀 On the proxy side, this release fixes an issue where proxies would not honor the cluster's opaqueness settings for non-pod/service addresses. This could cause protocol detection to be peformed, for instance, when using off-cluster databases.

    🚀 This release also disables the use of regexes in Linkerd log filters (i.e., as set by LINKERD2_PROXY_LOG). Malformed log directives could, in theory, cause a proxy to stop responding.

    🛠 The helm.sh/chart label in some of the CRDs had its formatting fixed, which ⬆️ avoids issues when installing/upgrading through external tools that make use of it, such as recent versions of Flux.

    • ➕ Added --crds flag to install/upgrade and remove config/control-plane stages
    • 👍 Allowed the AuthorizationPolicy CRD to have an empty requiredAuthenticationRefs entry that allows all traffic
    • Introduced nodeAffinity config in all the charts for enhanced control on the pods scheduling (thanks @michalrom089!)
    • Introduced resources, nodeSelector and tolerations configs in the linkerd-multicluster-link chart for enhanced control on the service mirror deployment (thanks @utay!)
    • 🛠 Fixed formatting of the helm.sh/chart label in CRDs
    • ⚡️ Updated container base images from buster to bullseye
    • ➕ Added support for spaces in the config.linkerd.io/opaque-ports annotation