Move tracing SDK out of main application code

Author: danopia

Dockerfile

@@ -2,9 +2,10 @@ FROM denoland/deno:alpine-1.31.2
 RUN apk add --no-cache graphviz
 ADD fonts/ /usr/share/fonts/truetype/
 
+ENV DENO_NO_UPDATE_CHECK=1
 WORKDIR /src
 ADD deps.ts .
 RUN deno check deps.ts
 ADD . .
-RUN deno check server.ts
-ENTRYPOINT ["deno","run","--allow-sys=hostname","--allow-env","--allow-net","--allow-run=deno,dot","--allow-read=.","server.ts"]
+RUN deno check entrypoint.ts
+ENTRYPOINT ["deno","run","--allow-sys=hostname","--allow-env","--allow-net","--allow-run=deno,dot","--allow-read=.","entrypoint.ts"]

deps.ts

@@ -23,4 +23,7 @@ export {
   trace,
   context,
   type Context,
-} from "https://raw.githubusercontent.com/cloudydeno/deno-observability/9d996d1ce0ba6b15641cbc882b15fc63992418b9/tracing/api.ts";
+} from "https://deno.land/x/[email protected]/opentelemetry/api.js";
+export {
+  httpTracer,
+} from "https://deno.land/x/[email protected]/instrumentation/http-server.ts";

entrypoint.ts

@@ -0,0 +1,2 @@
+import "./tracer.ts";
+import "./server.ts";

public/index.html

@@ -66,7 +66,7 @@ <h2>
 
   <p>Just browsing? Here's a few interesting modules:</p>
   <ul>
-    <li><a href="/dependencies-of/https/raw.githubusercontent.com/cloudydeno/module-visualizer/main/server.ts?rankdir=LR">raw.githubusercontent.com/cloudydeno/module-visualizer/main/server.ts</a> (this website!, minimal)</li>
+    <li><a href="/dependencies-of/https/raw.githubusercontent.com/cloudydeno/module-visualizer/main/server.ts?rankdir=LR">raw.githubusercontent.com/cloudydeno/module-visualizer/main/server.ts</a> (this website!)</li>
     <li><a href="/dependencies-of/x/[email protected]/mod.ts?rankdir=LR">deno.land/x/[email protected]/mod.ts</a> (minimal)</li>
     <li><a href="/dependencies-of/x/[email protected]/mod.ts">deno.land/x/[email protected]/mod.ts</a> (uses NPM packages via esm.sh)</li>
     <li><a href="/dependencies-of/x/[email protected]+0.20.0/mod.ts">deno.land/x/[email protected]+0.20.0/mod.ts</a></li>

server.ts

@@ -1,8 +1,7 @@
 #!/usr/bin/env -S deno run --watch --check --allow-sys=hostname --allow-read --allow-net --allow-run=deno,dot --allow-env
 
-import { http, trace } from "./deps.ts";
+import { http, httpTracer, trace } from "./deps.ts";
 import { serveFont, servePublic, serveTemplatedHtml } from './lib/request-handling.ts';
-import { httpTracer, provider } from "./tracer.ts";
 
 // The different HTTP surfaces we expose
 import * as DependenciesOf from './feat/dependencies-of/api.ts';

tracer.ts

@@ -1,19 +1,13 @@
-import { httpTracer, DenoFetchInstrumentation, DenoTracerProvider, OTLPTraceFetchExporter, Resource, SubProcessInstrumentation } from "https://deno.land/x/[email protected]/mod.ts";
-import { GoogleCloudPropagator } from "https://deno.land/x/[email protected]/tracing/propagators/google-cloud.ts";
-export { httpTracer };
+// TODO: this could be added to /x/observability as a preconfigured SDK
 
-export const provider = new DenoTracerProvider({
-  resource: new Resource({
+import { DenoTelemetrySdk } from "https://deno.land/x/[email protected]/sdk.ts";
+import { CloudPropagator } from "https://deno.land/x/[email protected]/otel-platform/propagators/google-cloud.ts";
+
+new DenoTelemetrySdk({
+  resourceAttrs: {
     'service.name': 'module-visualizer',
     'service.version': Deno.env.get('K_REVISION')?.slice((Deno.env.get('K_SERVICE')?.length ?? -1)+1),
     'deployment.environment': Deno.env.get('K_SERVICE') ? 'production' : 'local',
-  }),
-  propagator: new GoogleCloudPropagator(),
-  instrumentations: [
-    new DenoFetchInstrumentation(),
-    new SubProcessInstrumentation(),
-  ],
-  batchSpanProcessors: [
-    new OTLPTraceFetchExporter(),
-  ],
+  },
+  propagator: new CloudPropagator(),
 });