Integrate OpenTelemetry into the proxy

OpenCensus is a deprecated protocol and is slated to be removed from upstream collectors soon. This wires up the proxy to optionally use OpenTelmetry as the format for exported traces. Currently, this defaults to the existing OpenCensus exporter, and we can switch the default later. [#10111](linkerd/linkerd2#10111) Signed-off-by: Scott Fleener <[email protected]>
linkerd · Sep 27, 2024 · d690dbc · d690dbc
1 parent 642c2af
commit d690dbc
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Showing 28 changed files with 821 additions and 275 deletions.
diff --git a/.idea/linkerd2-proxy.iml b/.idea/linkerd2-proxy.iml
diff --git a/.idea/modules.xml b/.idea/modules.xml
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
diff --git a/Cargo.lock b/Cargo.lock
@@ -1126,6 +1126,7 @@ dependencies = [
  "linkerd-app-outbound",
  "linkerd-error",
  "linkerd-opencensus",
+ "linkerd-opentelemetry",
  "linkerd-tonic-stream",
  "rangemap",
  "regex",
@@ -1184,6 +1185,7 @@ dependencies = [
  "linkerd-meshtls",
  "linkerd-metrics",
  "linkerd-opencensus",
+ "linkerd-opentelemetry",
  "linkerd-proxy-api-resolve",
  "linkerd-proxy-balance",
  "linkerd-proxy-client-policy",
@@ -1743,6 +1745,7 @@ dependencies = [
  "http-body",
  "linkerd-error",
  "linkerd-metrics",
+ "linkerd-trace-context",
  "opencensus-proto",
  "tokio",
  "tokio-stream",
@@ -1759,6 +1762,7 @@ dependencies = [
  "http-body",
  "linkerd-error",
  "linkerd-metrics",
+ "linkerd-trace-context",
  "opentelemetry",
  "opentelemetry-proto",
  "opentelemetry_sdk",

diff --git a/linkerd/app/Cargo.toml b/linkerd/app/Cargo.toml
@@ -25,6 +25,7 @@ linkerd-app-inbound = { path = "./inbound" }
 linkerd-app-outbound = { path = "./outbound" }
 linkerd-error = { path = "../error" }
 linkerd-opencensus = { path = "../opencensus" }
+linkerd-opentelemetry = { path = "../opentelemetry" }
 linkerd-tonic-stream = { path = "../tonic-stream" }
 rangemap = "1"
 regex = "1"

diff --git a/linkerd/app/core/Cargo.toml b/linkerd/app/core/Cargo.toml
@@ -47,6 +47,7 @@ linkerd-io = { path = "../../io" }
 linkerd-meshtls = { path = "../../meshtls", default-features = false }
 linkerd-metrics = { path = "../../metrics", features = ["process", "stack"] }
 linkerd-opencensus = { path = "../../opencensus" }
+linkerd-opentelemetry = { path = "../../opentelemetry" }
 linkerd-proxy-api-resolve = { path = "../../proxy/api-resolve" }
 linkerd-proxy-balance = { path = "../../proxy/balance" }
 linkerd-proxy-core = { path = "../../proxy/core" }