add a couple of aws lambda and web app performance resources

mattmakai · mattmakai · commit 813c5f555a8d · 2019-03-06T08:40:27.000-05:00
diff --git a/content/pages/05-deployment/39-aws-lambda.markdown b/content/pages/05-deployment/39-aws-lambda.markdown
@@ -119,3 +119,14 @@ has support for both Python 2.7, 3.6 and 3.7.
   how the circuit breaker pattern should be applied to your Lambdas
   and ultimately why low time outs are likely the best way to go to
   prevent your application from becoming entirely unresponsive.
+
+* [X-rays for Flask and Django Serverless Applications](https://aws.amazon.com/blogs/developer/introducing-aws-x-ray-support-for-python-web-frameworks-used-in-serverless-applications/)
+  is an instrumentation, monitoring and debugging service built into AWS
+  Lambda specifically for Python [web frameworks](/web-frameworks.html) 
+  running on the service.
+
+* [Cutting Through the Layers: AWS Lambda Layers Explained](https://read.iopipe.com/cutting-through-the-layers-aws-lamba-layers-explained-28e8a8d7bda8)
+  explains how AWS Lambda now offer a "Bring Your Own Runtime" by exposing
+  the layers that were previously controlled exclusively by Amazon. There
+  is an overview of the layers and why they matter for customizing your
+  functions.
diff --git a/content/pages/06-devops/02-prometheus.markdown b/content/pages/06-devops/02-prometheus.markdown
@@ -20,3 +20,17 @@ and report on Python [web applications](/web-development.html).
 * This primer on [Prometheus](https://www.kartar.net/2017/10/prometheus/) 
   walks through installation, configuration and metrics collection.
 
+* [Monitoring synchronous Python web apps with Prometheus](https://blog.codeship.com/monitoring-your-synchronous-python-web-applications-using-prometheus/)
+  and its
+  [asynchronous monitoring](https://blog.codeship.com/monitoring-your-asynchronous-python-web-applications-using-prometheus/)
+  counterpart are two tutorials that show how to add middleware
+  to your web apps that allows Prometheus metrics collection.
+
+* [Monitoring with Prometheus](https://kjanshair.github.io/2018/02/20/prometheus-monitoring/)
+  provides an overview of the tool and explains how to combine it
+  with [Grafana](https://grafana.com/) to visualize the metrics
+  that are collected.
+
+* [Monitor your applications with Prometheus](https://blog.alexellis.io/prometheus-monitoring/)
+  is a getting started guide with a walkthrough of how to instrument
+  a simple Golang application.
diff --git a/content/pages/06-devops/06-web-app-performance.markdown b/content/pages/06-devops/06-web-app-performance.markdown
@@ -28,7 +28,6 @@ database queries, page size and many other factors.
   ensure their applications work properly under heavy usage.
 
 
-
 ### Web app performance resources
 * [A Primer in Web Performance](https://kiboit.com/performance) is a quick,
   straightforward one pager on why the topic matters and what causes bad
@@ -51,6 +50,16 @@ database queries, page size and many other factors.
   [task queues](/task-queues.html), [database](/databases.html) optimization
   and [caching](/caching.html).
 
+* The [Performance Testing Guidance for Web Applications](https://docs.microsoft.com/en-us/previous-versions/msp-n-p/bb924375(v%3dpandp.10)
+  book from Microsoft is a gem. There are chapters on foundations of 
+  performance testing, modeling application usage and many other topics
+  that are critical to working on web app performance.
+
 * [awesome-scalability](https://github.com/binhnguyennus/awesome-scalability)
   provides a list with a crazy number of scaling and performance optimization 
   resources and tools by category.
+
+* [The Infrastructure Behind Twitter: Scale](https://blog.twitter.com/engineering/en_us/topics/infrastructure/2017/the-infrastructure-behind-twitter-scale.html)
+  examines the evolution from having to buy your own hardware from vendors
+  to run a service to the current days of being able to rely on cloud 
+  providers for some or all workloads regardless of scale.
diff --git a/theme/templates/table-of-contents.html b/theme/templates/table-of-contents.html
@@ -192,7 +192,7 @@ <h4>6.1 <a href="/monitoring.html">Monitoring</a></h4>
 <div class="tc"><a href="/rollbar.html">Rollbar</a></div>
 <div class="tc sn">Sentry</div>
 <div class="tc sn">Scout</div>
-<h4>6.2 <span class="sn">Web App Performance</span></h4>
+<h4>6.2 <a href="/web-app-performance.html">Web App Performance</a></h4>
 <div class="tc"><a href="/logging.html">Logging</a></div>
 <div class="tc"><a href="/caching.html">Caching</a></div>
 <div class="tc"><a href="/web-analytics.html">Web Analytics</a></div>
