edge-19.1.4

This is an edge release of Linkerd! The latest stable release is stable-2.1.0.

To install this edge release, run:
curl https://run.linkerd.io/install-edge | sh

• Controller
  • Added support for timeouts! Configurable in the service profiles for each route
  • Added an experimental CNI plugin to avoid requiring the NET_ADMIN capability when
    injecting proxies (more details at https://linkerd.io/2/cni) (thanks @codeman9!)
  • Added more improvements to the API for ListPods (thanks @alenkacz!)
• Web UI
  • Grayed-out the tap icon for requests from sources that are not meshed
• CLI
  • Added the --proto flag to linkerd profile to output a service profile
    based on a Protobuf spec file
  • Fixed CLI connection failure to clusters that use self-signed certificates
  • Simplified linkerd install so that setting up proxy auto-injection (flag --proxy-auto-inject) no longer requires enabling TLS (flag --tls)
  • Added links for each linkerd check failure, pointing to a relevant section
    in our new FAQ page with resolution steps for each case

edge-19.1.3

This is an edge release of Linkerd! The latest stable release is stable-2.1.0.

To install this edge release, run:
curl https://run.linkerd.io/install-edge | sh

• Controller
  • Improved API for ListPods (thanks @alenkacz!)
  • Fixed GetProfiles API call not returning immediately when no profile
    exists (resulting in proxies logging warnings)
• Web UI
  • Improved resource detail pages now show all resource types
  • Fixed stats not appearing for routes that have service profiles installed
• CLI
  • Added optional linkerd install-sp command to generate service profiles for
    the control plane, providing per-route metrics for control plane components
  • Removed --proxy-bind-timeout flag from linkerd install and linkerd inject
    commands, as the proxy no longer accepts this environment variable
  • Improved CLI appearance on Windows systems
  • Improved linkerd check output, fixed check bug when using --single-namespace
    (thanks to @djeeg for the bug report!)
  • Improved linkerd stat now supports DaemonSets (thanks @zknill!)
  • Fixed panic when linkerd routes is called in single-namespace mode
• Proxy
  • Added the ability to override a proxy's normal outbound routing by adding an
    l5d-override-dst header
  • Added LINKERD2_PROXY_DNS_CANONICALIZE_TIMEOUT environment variable to
    customize the timeout for DNS queries to canonicalize a name
  • Added support for route timeouts in service profiles
  • Improved logging for gRPC errors and for malformed HTTP/2 request headers
  • Improved log readability by moving some noisy log messages to more verbose
    log levels

edge-19.1.2

This is an edge release of Linkerd! The latest stable release is stable-2.1.0.

To install this edge release, run:
curl https://run.linkerd.io/install-edge | sh

• Controller
  • Retry support! Introduce an isRetryable property to service profiles to
    enable configuring retries on a per-route basis
• Web UI
  • Add "meshed" and "no traffic" badges on the resource detail pages
  • Fix linkerd dashboard to maintain proxy connection when browser open fails
  • Fix JavaScript bundling to avoid serving old versions after upgrade
• CLI
  • Add linkerd logs command to surface logs from any container in the Linkerd
    control plane (shout out to Stern!)
  • Add linkerd uninject command to remove the Linkerd proxy from a Kubernetes
    config
  • Improve linkerd inject to re-inject a resource that already has a Linkerd
    proxy
  • Improve linkerd routes to list all routes, including those without traffic
  • Improve readability in linkerd check and linkerd inject outputs
• Proxy
  • Fix a deadlock in HTTP/2 stream reference counts

edge-19.1.1

This is an edge release of Linkerd! The latest stable release is stable-2.1.0.

To install this edge release, run:
curl https://run.linkerd.io/install-edge | sh

• CLI
  • Adjust the set of checks that are run before executing CLI commands, which
    allows the CLI to be invoked even when the control plane is not fully ready
  • Fix reporting of injected resources when the linkerd inject command is run
    on List type resources with multiple items
  • Update the linkerd dashboard command to use port-forwarding instead of
    proxying when connecting to the web UI and Grafana
  • Add validation for the ServiceProfile CRD (thanks, @alenkacz!)
  • Update the linkerd check command to disallow setting both the --pre and
    --proxy flags simultaneously (thanks again, @alenkacz!)
• Web UI
  • Reduce the size of the webpack JavaScript bundle by nearly 50%!
  • Fix an indexing error on the top results page
• Proxy
  • Fixed The proxy-init container now exits with a non-zero exit code if
    initialization fails, making initialization errors much more visible
  • Fixed The proxy previously leaked UDP sockets for failed DNS queries,
    causing a memory leak; this has been fixed

edge-18.12.4

This is an edge release of Linkerd! The latest stable release is stable-2.1.0.

To install this edge release, run:
curl https://run.linkerd.io/install-edge | sh

Upgrade notes: The control plane components have been renamed as of the
edge-18.12.1 release to reduce possible naming collisions. To upgrade an
older installation, see the Upgrade Guide.

• CLI
  • Add --routes flag to the linkerd top command, for grouping table rows
    by route instead of by path
  • Update Prometheus configuration to automatically load *_rules.yml files
  • Remove TLS column from the linkerd routes command output
• Web UI
  • Restore unmeshed resources in the network graph on the resource detail page
  • Reduce the overall size of the asset bundle for the web frontend
• Proxy
  • Improve configuration of the PeakEwma load balancer

Special thanks to @radu-matei for cleaning up a whole slew of Go lint warnings,
and to @jonrichards for improving the Rust build setup!

edge-18.12.3

Upgrade notes: The control plane components have been renamed as of the
edge-18.12.1 release to reduce possible naming collisions. To upgrade an
older installation, see the Upgrade Guide.

• CLI
  • Multiple improvements to the linkerd install config (thanks @codeman9!)
    • Use non-default service accounts for grafana and web deployments
    • Use emptyDir volume mount for prometheus and grafana pods
    • Set security context on control plane components to not run as root
  • Remove cluster-wide resources from single-namespace installs
    • Disable service profiles in single-namespace mode
    • Require that namespace already exist for single-namespace installs
  • Fix resource requests for proxy-injector container in --ha installs
• Controller
  • Block controller initialization until caches have synced with kube API
  • Fix proxy-api handling of named target ports in service configs
  • Add parameter to stats API to skip retrieving prometheus stats (thanks,
    @alpeb!)
• Web UI
  • Adjust label for unknown routes in route tables, add tooltip
  • Update Top Routes page to persist form settings in URL
  • Add button to create new service profiles on Top Routes page
  • Fix CLI commands displayed when linkerd is running in non-default namespace
• Proxy
  • Proxies with TLS enabled now honor ports configured to skip protocol detection

stable-2.1.0

Announcing Linkerd 2.1 🎈

This stable release introduces several major improvements, including per-route
metrics, service profiles, and a vastly improved dashboard UI. It also adds
several significant experimental features, including proxy auto-injection,
single namespace installs, and a high-availability mode for the control plane.

For more details, see the announcement blog post:
https://blog.linkerd.io/2018/12/06/announcing-linkerd-2-1/

To install this release, run: curl https://run.linkerd.io/install | sh

Upgrade notes: The control plane components have been renamed in this
release to reduce possible naming collisions. Please make sure to read the
upgrade instructions if you are upgrading from the stable-2.0.0 release.

Special thanks to: @alenkacz, @alpeb, @benjdlambert, @fahrradflucht,
@ffd2subroutine, @hypnoglow, @ihcsim, @lucab, and @rochacon.

Full release notes:

• CLI
  • linkerd routes command displays per-route stats for any resource
  • Service profiles are now supported for external authorities
  • linkerd profile --open-api flag generates a service profile
    based on an OpenAPI specification (swagger) file
  • linkerd routes command displays per-route stats for services with
    service profiles
  • Add --ha flag to linkerd install command, for HA
    deployment of the control plane
  • Update stat command to accept multiple stat targets
  • Fix authority stat filtering when the --from flag is present
  • Various improvements to check command, including:
    • Emit warnings instead of errors when not running the latest version
    • Add retries if control plane health check fails initially
    • Run all pre-install RBAC checks, instead of stopping at first failure
  • Fixed an issue with the --registry install flag not accepting
    hosts with ports
  • Added an --output stat flag, for printing stats as JSON
  • Updated the top table to set column widths dynamically
  • Added a --single-namespace install flag for installing
    the control plane with Role permissions instead of ClusterRole permissions
  • Added a --proxy-auto-inject flag to the install command,
    allowing for auto-injection of sidecar containers
  • Added --proxy-cpu and --proxy-memory flags to the install
    and inject commands, giving the ability to configure CPU + Memory requests
  • Added a --context flag to specify the context to use to talk
    to the Kubernetes apiserver
  • The namespace in which Linkerd is installed is configurable via the
    LINKERD_NAMESPACE env var, in addition to the --linkerd-namespace flag
  • The wait time for the check and dashboard commands is
    configurable via the --wait flag
  • The top command now aggregates by HTTP method as well
• Controller
  • Rename snake case fields to camel case in service profile spec
  • Controller components are now prefixed with linkerd- to
    prevent name collisions with existing resources
  • linkerd install --disable-h2-upgrade flag has been added to
    control automatic HTTP/2 upgrading
  • Fix auto injection issue on Kubernetes v1.9.11 that would
    merge, rather than append, the proxy container into the application
  • Fixed a few issues with auto injection via the proxy-injector webhook:
    • Injected pods now execute the linkerd-init container last, to avoid
      rerouting requests during pod init
    • Original pod labels and annotations are preserved when auto-injecting
  • CLI health check now uses unified endpoint for data plane checks
  • Include Licence files in all Docker images
• Proxy
  • The proxy's tap subsystem has been reimplemented to be more
    efficient and and reliable
    • The proxy now supports route metadata in tap queries and events
  • A potential HTTP/2 window starvation bug has been fixed
  • Prometheus counters now wrap properly for values greater than 2^53
  • Add controller client metrics, scoped under control_
  • Canonicalize outbound names via DNS for inbound profiles
  • Fix routing issue when a pod makes a request to itself
  • Only include classification label on response_total metric
  • Remove panic when failing to get remote address
  • Better logging in TCP connect error messages
• Web UI
  • Top routes page, served at /routes
  • Route metrics are now available in the resource detail pages for
    services with configured profiles
  • Service profiles can be created and downloaded from the Web UI
  • Top Routes page, served at /routes
  • Fixed a smattering of small UI issues
  • Added a new Grafana dashboard for authorities
  • Revamped look and feel of the Linkerd dashboard by switching
    component libraries from antd to material-ui
  • Added a Help section in the sidebar containing useful links
  • Tap and Top pages
    • Added clear button to query form
  • Resource Detail pages
    • Limit number of resources shown in the graph
  • Resource Detail page
    • Better rendering of the dependency graph at the top of the page
    • Unmeshed sources are now populated in the Inbound traffic table
    • Sources and destinations are aligned in the popover
  • Tap and Top pages
    • Additional validation and polish for the form controls
    • The top table clears older results when a new top call is started
    • The top table now aggregates by HTTP method as well

edge-18.12.2

Upgrade notes: The control plane components have been renamed as of the edge-18.12.1 release to reduce possible naming collisions. To upgrade an older installation, see the Upgrade Guide.

• Controller
  • Rename snake case fields to camel case in service profile spec

edge-18.12.1

Upgrade notes: The control plane components have been renamed in this release to
reduce possible naming collisions. To upgrade an existing installation:

• Install new CLI: curl https://run.linkerd.io/install-edge | sh
• Install new control plane: linkerd install | kubectl apply -f -
• Remove old deploys/cms:
  kubectl -n linkerd get deploy,cm -oname | grep -v linkerd | xargs kubectl -n linkerd delete
• Re-inject your applications: linkerd inject my-app.yml | kubectl apply -f -
• Remove old services:
  kubectl -n linkerd get svc -oname | grep -v linkerd | xargs kubectl -n linkerd delete

For more information, see the Upgrade Guide.

• CLI
  • Improved linkerd routes command displays per-route stats for any resource!
  • New Service profiles are now supported for external authorities!
  • New linkerd routes --open-api flag generates a service profile
    based on an OpenAPI specification (swagger) file
• Web UI
  • New Top routes page, served at /routes
  • New Route metrics are now available in the resource detail pages for
    services with configured profiles
  • New Service profiles can be created and downloaded from the Web UI
• Controller
  • Improved Controller components are now prefixed with linkerd- to
    prevent name collisions with existing resources
  • New linkerd install --disable-h2-upgrade flag has been added to
    control automatic HTTP/2 upgrading
• Proxy
  • Improved The proxy's tap subsystem has been reimplemented to be more
    efficient and and reliable
    • The proxy now supports route metadata in tap queries and events
  • Fixed A potential HTTP/2 window starvation bug has been fixed
  • Fixed Prometheus counters now wrap properly for values greater than
    2^53 (thanks, @lucab!)

edge-18.11.3

• CLI
  • New linkerd routes command displays per-route stats for services with service profiles
  • Experimental Add --ha flag to linkerd install command, for HA deployment of the control plane (thanks @benjdlambert!)
• Web UI
  • Experimental Top Routes page, served at /routes
• Controller
  • Fixed Fix auto injection issue on Kubernetes v1.9.11 that would merge, rather than append, the proxy container into the application
• Proxy
  • Improved Add controller client metrics, scoped under control_
  • Improved Canonicalize outbound names via DNS for inbound profiles