commit b27dfb2d21aa8ca5466ea0edce17d27094ace7c1 Author: Takanori Ishibashi <takanori.1112@gmail.com> Date: Wed May 15 05:58:42 2019 +0900 updaes->updates (#250) Signed-off-by: Takanori Ishibashi <takanori.1112@gmail.com> commit 16441c25a9d423a6ab12b689b830d9ae3798fa00 Author: Eliza Weisman <eliza@buoyant.io> Date: Tue May 14 14:40:03 2019 -0700 Pass router::Config directly to router::Layer (#253) Currently, router `layer`s are constructed with a single argument, a type implementing `Recognize`. Then, the entire router stack is built with a `router::Config`. However, in #248, it became necessary to provide the config up front when constructing the `router::layer`, as the layer is used in a fallback layer. Rather than providing a separate type for a preconfigured layer, @olix0r suggested we simply change all router layers to accept the `Config` when they're constructed (see linkerd/linkerd2-proxy#248 (comment)). This branch changes `router::Layer` to accept the config up front. The `router::Stack` types `make` function now requires no arguments, and the implementation of `Service` for `Stack` can be called with any `T` (as the target is now ignored). Signed-off-by: Eliza Weisman <eliza@buoyant.io> commit b70c68d4504a362eac6a7828039a2e5c7fcd308a Author: Eliza Weisman <eliza@buoyant.io> Date: Wed May 15 13:14:04 2019 -0700 Load balancers fall back to ORIG_DST when no endpoints exist (#248) Currently, when no endpoints exist in the load balancer for a destination, we fail the request. This is because we expect endpoints to be discovered by both destination service queries _and_ DNS lookups, so if there are no endpoints for a destination, it is assumed to not exist. In #2661, we intend to remove the DNS lookup from the proxy and instead fall back to routing requests for which no endpoints exist in the destination service to their SO_ORIGINAL_DST IP address. This means that the current approach of failing requests when the load balancer has no endpoints will no longer work. This branch introduces a generic `fallback` layer, which composes a primary and secondary service builder into a new layer. The primary service can fail requests with an error type that propages the original request, allowing the fallback middleware to call the fallback service with the same request. Other errors returned by the primary service are still propagated upstream. In contrast to the approach used in #240, this fallback middleware is generic and not tied directly to a load balancer or a router, and can be used for other purposes in the future. It relies on the router cache eviction added in #247 to drain the router when it is not being used, rather than proactively destroying the router when endpoints are available for the lb, and re-creating it when they exist again. A new trait, `HasEndpointStatus`, is added in order to allow the discovery lookup to communicate the "no endpoints" state to the balancer. In addition, we add a new `Update::NoEndpoints` variant to `proxy::resolve::Update`, so that when the control plane sends a no endpoints update, we switch from the balancer to the no endpoints state _immediately_, rather than waiting for all the endpoints to be individually removed. When the balancer has no endpoints, it fails all requests with a fallback error, so that the fallback middleware A subsequent PR (#248) will remove the DNS lookups from the discovery module. Closes #240. Signed-off-by: Eliza Weisman <eliza@buoyant.io> commit 6525b0638ad18e74510f3156269e0613f237e2f5 Author: Zahari Dichev <zaharidichev@gmail.com> Date: Wed May 15 23:35:09 2019 +0300 Allow disabling tap by setting an env var (#252) This PR fixes #2811. Now if `LINKERD2_PROXY_TAP_DISABLED` is set, the tap is not served at all. The approach taken is that the `ProxyParts` is changed so the `control_listener` is now an `Option` that will be None if tap is disabled as this control_listener seems to be exclusively used to serve the tap. Feel free to suggest a better approach. Signed-off-by: Zahari Dichev <zaharidichev@gmail.com> commit 91f32db2ea6d74470fd689c713ff87dc7586222d Author: Zahari Dichev <zaharidichev@gmail.com> Date: Thu May 16 00:45:23 2019 +0300 Assert that outbound TLS works before identity is certified (#251) This commit introduces TLS capabilities to the support server as well as tests to ensure that outbound TLS works even when there is no verified certificate for the proxy yet. Fixes #2599 Signed-off-by: Zahari Dichev <zaharidichev@gmail.com> commit 45aadc6b1b28e6daea0c40e694a86ae518887d85 Author: Sean McArthur <sean@buoyant.io> Date: Wed May 15 14:25:39 2019 -0700 Update h2 to v0.1.19 Includes a couple HPACK fixes Signed-off-by: Sean McArthur <sean@buoyant.io> commit 3e0e00c6dfbf5a9155b887cfd594f611edfc135f Author: Oliver Gould <ver@buoyant.io> Date: Thu May 16 08:11:06 2019 -0700 Update mio to 0.6.17 (#257) To pick up tokio-rs/mio#939

Add mouseover stats / tooltips to line graphs #247

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