tracing: Add OpenTracing support

Add OpenTracing [1] support using Jaeger [2]. Full details are provided in `TRACING.md`. Fixes kata-containers#322. [1] - https://opentracing.io [2] - https://jaegertracing.io Signed-off-by: James O. D. Hunt <[email protected]>
jodh-intel · Nov 22, 2018 · 4105d69 · 4105d69
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diff --git a/Gopkg.lock b/Gopkg.lock
diff --git a/Gopkg.toml b/Gopkg.toml
@@ -42,6 +42,10 @@
   name = "google.golang.org/grpc"
   revision = "d11072e7ca9811b1100b80ca0269ac831f06d024"
 
+[[constraint]]
+  name = "github.com/uber/jaeger-client-go"
+  version = "2.15.0"
+
 [[override]]
   name = "github.com/containerd/console"
   revision = "2748ece16665b45a47f884001d5831ec79703880"

diff --git a/README.md b/README.md
@@ -5,6 +5,7 @@
 
 * [Debug mode](#debug-mode)
 * [Developer mode](#developer-mode)
+* [Enable trace support](#enable-trace-support)
 
 This project implements an agent called `kata-agent` that runs inside a virtual machine (VM).
 
@@ -21,3 +22,7 @@ See the [developer guide](https://github.com/kata-containers/documentation/blob/
 
 Add `agent.devmode` to the guest kernel command line to enable
 [debug mode](#debug-mode) and allow the agent process to coredump (disabled by default).
+
+## Enable trace support
+
+See [the tracing guide](TRACING.md).