Drive by copy edit of blog post (kubernetes#18881)

* Medium copy edit.

* more fixes

content/en/blog/_posts/2019-01-22-Gamified-Chaos-Engineering-Tool-for-Kubernetes.md → content/en/blog/_posts/2020-01-22-Gamified-Chaos-Engineering-Tool-for-Kubernetes.md

@@ -13,21 +13,22 @@ Commons Briefing session. Kubenvaders is a Gamified Chaos Engineering
 tool for Kubernetes and Openshift and helps test how resilient your
 Kubernetes cluster is, in a fun way.
 
-It is like space invaders but the aliens are PODs.
+It is like Space Invaders, but the aliens are pods.
 
 ![](https://github.com/lucky-sideburn/KubeInvaders-kubernetes-post/raw/master/img1.png)
 
 During my presentation at Codemotion Milan 2019, I started saying "of
-course you can do it with few lines of bash but it is boring."
+course you can do it with few lines of Bash, but it is boring."
+
 ![](https://github.com/lucky-sideburn/KubeInvaders-kubernetes-post/raw/master/img2.png)
 
-Using the code above you can kill random PODs across a K8s cluster but I
-think it is much funnier with the spaceship of Kubeinvaders.
+Using the code above you can kill random pods across a Kubernetes cluster, but I
+think it is much more fun with the spaceship of KubeInvaders.
 
 I published the code at
 [https://github.com/lucky-sideburn/KubeInvaders](https://github.com/lucky-sideburn/KubeInvaders)
 and there is a little community that is growing gradually. Some people
-love to use it for demo sessions killing PODs on the big screens.
+love to use it for demo sessions killing pods on a big screen.
 
 ![](https://github.com/lucky-sideburn/KubeInvaders-kubernetes-post/raw/master/img3.png)
 
@@ -44,84 +45,66 @@ I defined multiples modes to install it:
 3.  Manual Installation for Kubernetes
     [https://github.com/lucky-sideburn/KubeInvaders\#install-kubeinvaders-on-kubernetes](https://github.com/lucky-sideburn/KubeInvaders#install-kubeinvaders-on-kubernetes)
 
-The preferred way, of course, is with a Helm chart.
-
-  ----------------------------------------------------------------------------------------------------------------------------------------------------
+The preferred way, of course, is with a Helm chart:
 
   ```
   # Please set target_namespace to set your target namespace!
   helm install --set-string target_namespace="namespace1,namespace2" \
   --name kubeinvaders --namespace kubeinvaders ./helm-charts/kubeinvaders
   ```
-  ----------------------------------------------------------------------------------------------------------------------------------------------------
 
 ## How to use KubeInvaders
 
 Once it is installed on your cluster you can use the following
 functionalities:
 
-a.  Key 'a' =\> Switch to automatic pilot;
-
-b.  Key 'm' =\> Switch to manual pilot;
-
-c.  Key 'i' =\> Show pod\'s name. Move the ship towards an alien;
-
-d.  Key 'h' =\> Print help;
-
-e.  Key 'n' =\> Jump between; different namespaces (my preferred feature!)
+ * Key 'a' — Switch to automatic pilot
+ * Key 'm' — Switch to manual pilot
+ * Key 'i' — Show pod's name. Move the ship towards an alien
+ * Key 'h' — Print help
+ * Key 'n' — Jump between different namespaces (my favorite feature!)
 
 ## Tuning KubeInvaders
 
 At Codemotion Milan 2019, my colleagues and I organized a desk with a
-game station for playing KubeInvaders. People had to fight with K8s to
+game station for playing KubeInvaders. People had to fight with Kubernetes to
 win a t-shirt.
 
-If you have PODs that require a few seconds to start, you may lose. It
+If you have pods that require a few seconds to start, you may lose. It
 is possible to set the complexity of the game with these parameters as
-env var in the K8s deployment:
-
-a.  ALIENPROXIMITY =\> Reduce this value to increase the distance between aliens;
+environmment variables in the Kubernetes deployment:
 
-b.  HITSLIMIT =\> Seconds of CPU time to wait before shooting;
+ * ALIENPROXIMITY — Reduce this value to increase the distance between aliens;
+ * HITSLIMIT — Seconds of CPU time to wait before shooting;
+ * UPDATETIME — Seconds to wait before updating pod status (you can set also 0.x Es: 0.5);
 
-c.  UPDATETIME =\> Seconds to wait before update PODs status (you can set also 0.x Es: 0.5);
-
-The result is a harder game experience against the machine :D
+The result is a harder game experience against the machine.
 
 ## Use cases
 
 Adopting chaos engineering strategies for your production environment is
-really useful because it is the only way to test if a system supports
+really useful, because it is the only way to test if a system supports
 unexpected destructive events.
 
-KubeInvaders is a game so please do not take it too seriously but it has
+KubeInvaders is a game — so please do not take it too seriously! — but it demonstrates
 some important use cases:
 
--   Test how resilient K8s clusters are on unexpected PODs deletion;
-
--   Collect metrics like PODs restart time;
+ * Test how resilient Kubernetes clusters are on unexpected pod deletion
+ * Collect metrics like pod restart time
+ * Tune readiness probes
 
--   Tuning readiness probes;
-
-## Next step
+## Next steps
 
 I want to continue to add some cool features and integrate it into a
 Kubernetes dashboard because I am planning to transform it into a
-"Gamified Chaos Engineering and Development Tool for Kubernetes".
-
-For "Development Tool for Kubernetes" I mean something that help
-developers to interact with deployments in a K8s environment. For
+"Gamified Chaos Engineering and Development Tool for Kubernetes", to help
+developer to interact with deployments in a Kubernetes environment. For
 example:
 
-a.  Point to the aliens to get PODs logs;
-
-b.  Deploy Helm charts shooting some particular objects;
-
-c.  Read message stored in a specific label present in a deployment;
+ * Point to the aliens to get pod logs
+ * Deploy Helm charts by shooting some particular objects
+ * Read messages stored in a specific label present in a deployment
 
 Please feel free to contribute to
 [https://github.com/lucky-sideburn/KubeInvaders](https://github.com/lucky-sideburn/KubeInvaders)
-and stay updated following \#kubeinvaders news on Twitter
-([https://twitter.com/luckysideburn](https://twitter.com/luckysideburn))
-
-Thanks!
+and stay updated following \#kubeinvaders news [on Twitter](https://twitter.com/luckysideburn).