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Posted to commits@sling.apache.org by bd...@apache.org on 2019/07/05 13:26:56 UTC
[sling-whiteboard] branch master updated: time-to-first-request
utility
This is an automated email from the ASF dual-hosted git repository.
bdelacretaz pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/sling-whiteboard.git
The following commit(s) were added to refs/heads/master by this push:
new 48d932d time-to-first-request utility
48d932d is described below
commit 48d932df9ade2bf9b42f3b25784d34f0f56dd615
Author: Bertrand Delacretaz <bd...@apache.org>
AuthorDate: Fri Jul 5 15:26:21 2019 +0200
time-to-first-request utility
---
graalvm/.dockerignore | 3 +-
graalvm/README.md | 3 +
graalvm/time-to-first-request/.gitignore | 1 +
graalvm/time-to-first-request/README.md | 7 +
graalvm/time-to-first-request/index.js | 53 +++
graalvm/time-to-first-request/package-lock.json | 548 ++++++++++++++++++++++++
graalvm/time-to-first-request/package.json | 17 +
7 files changed, 631 insertions(+), 1 deletion(-)
diff --git a/graalvm/.dockerignore b/graalvm/.dockerignore
index b86c7ac..a85879e 100644
--- a/graalvm/.dockerignore
+++ b/graalvm/.dockerignore
@@ -1,4 +1,5 @@
*
!target/*-runner
!target/*-runner.jar
-!target/lib/*
\ No newline at end of file
+!target/lib/*
+!time-to-first-request
diff --git a/graalvm/README.md b/graalvm/README.md
index 3bf5a17..d501f6a 100644
--- a/graalvm/README.md
+++ b/graalvm/README.md
@@ -36,6 +36,9 @@ At which point the server should work:
To run as a Docker container see the [Dockerfile.native](./src/main/docker/Dockerfile.native) file.
+The `time-to-first-request` utility is used to measure the time needed
+by that container + our app to start up.
+
## TODO
Running in **quarkus:dev mode fails so far** ("no SCR metadata found"), even if
using
diff --git a/graalvm/time-to-first-request/.gitignore b/graalvm/time-to-first-request/.gitignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/graalvm/time-to-first-request/.gitignore
@@ -0,0 +1 @@
+node_modules
diff --git a/graalvm/time-to-first-request/README.md b/graalvm/time-to-first-request/README.md
new file mode 100644
index 0000000..4f6a100
--- /dev/null
+++ b/graalvm/time-to-first-request/README.md
@@ -0,0 +1,7 @@
+node-proxy
+====
+
+A (quick hack for now) HTTP proxy written in NodeJS that starts our
+native image container on demand when an HTTP request is received.
+
+Used to measure the time-to-first-request on our native image.
diff --git a/graalvm/time-to-first-request/index.js b/graalvm/time-to-first-request/index.js
new file mode 100644
index 0000000..fc00277
--- /dev/null
+++ b/graalvm/time-to-first-request/index.js
@@ -0,0 +1,53 @@
+// This can be used to measure the time to first request,
+// including starting up our Docker container:
+// npm install
+// node index.js
+//
+// And in a different terminal:
+// time curl -s http://localhost:9000/sling/chouc/route
+//
+// This proxy starts the container on the first request
+// (for now, you need to stop it before running this utility)
+// so the reported time is a realistic "time to first request"
+// value.
+//
+const http = require('http');
+const httpProxy = require('http-proxy');
+const { Docker } = require('docker-cli-js');
+const waitOn = require('wait-on');
+const elapsedTime = require('elapsed-time')
+
+const listenPort = 9000;
+const targetUrl = 'http://127.0.0.1:8080';
+const waitUrl = `${targetUrl}/sling/chouc/route`;
+const dockerRunCmd = 'run -i --rm -p 8080:8080 quarkus/org.apache.sling.graalvm.experiments';
+
+const proxy = httpProxy.createProxyServer({});
+
+const waitOpts = {
+ resources: [
+ waitUrl
+ ],
+ delay: 0,
+ interval: 10,
+ timeout: 30000,
+ window: 1,
+};
+
+var server = http.createServer(function(req, res) {
+ console.log(`Starting container: docker ${dockerRunCmd}`);
+ const et = elapsedTime.new().start();
+ // TODO detect if container is already running, instead of blind catch
+ // (maybe use node-docker-api instead)
+ new Docker({}).command(dockerRunCmd).catch();
+ console.log(`Waiting on ${waitOpts.resources[0]} (${et.getValue()})`);
+ waitOn(waitOpts).then(() =>{
+ console.log(`Time to first request to ${waitUrl}: (${et.getValue()})`);
+ console.log(`Proxying ${req.url} (${et.getValue()})`);
+ proxy.web(req, res, { target: targetUrl });
+ console.log(`Done proxying (${et.getValue()})`);
+ });
+});
+
+console.log(`listening on port ${listenPort}, proxying to ${targetUrl}`);
+server.listen(listenPort);
\ No newline at end of file
diff --git a/graalvm/time-to-first-request/package-lock.json b/graalvm/time-to-first-request/package-lock.json
new file mode 100644
index 0000000..b302b21
--- /dev/null
+++ b/graalvm/time-to-first-request/package-lock.json
@@ -0,0 +1,548 @@
+{
+ "name": "node-proxy",
+ "version": "1.0.0",
+ "lockfileVersion": 1,
+ "requires": true,
+ "dependencies": {
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+ "requires": {
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+ "@types/tape": "*"
+ }
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diff --git a/graalvm/time-to-first-request/package.json b/graalvm/time-to-first-request/package.json
new file mode 100644
index 0000000..ef89652
--- /dev/null
+++ b/graalvm/time-to-first-request/package.json
@@ -0,0 +1,17 @@
+{
+ "name": "node-proxy",
+ "version": "1.0.0",
+ "description": "node-proxy ====",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "author": "",
+ "license": "Apache-2.0",
+ "dependencies": {
+ "docker-cli-js": "^2.5.2",
+ "elapsed-time": "0.0.1",
+ "http-proxy": "^1.17.0",
+ "wait-on": "^3.2.0"
+ }
+}