new references and lectures

references/S01 Quick Start.md

@@ -16,8 +16,6 @@
 - [Docker Official Images](https://docs.docker.com/docker-hub/official_images/)
 - [Apache Official Image (httpd)](https://hub.docker.com/_/httpd)
 
-### Shell Commands
-
 ```shell
 docker version
 docker run -d -p 8800:80 httpd

references/S15 Your First Pods.md

@@ -2,6 +2,10 @@
 
 > Shell commands and reference links, per lecture
 
+## Kubectl run, create, and apply
+
+- [Kubectl Reference](https://kubernetes.io/docs/reference/kubectl/)
+
 ## Our First Pod With Kubectl run
 
 - [Kubectl Cheat Sheet](https://kubernetes.io/docs/reference/kubectl/cheatsheet/)
@@ -17,6 +21,9 @@ kubectl get all
 
 ## Your First Deployment with kubectl create
 
+- [kubectl create deployment](https://kubernetes.io/docs/tutorials/kubernetes-basics/deploy-app/deploy-intro/)
+- [Deployments](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/)
+
 ```shell
 kubectl create deployment my-nginx --image nginx
 kubectl get pods
@@ -27,6 +34,8 @@ kubectl delete deployment my-nginx
 
 ## Scaling ReplicaSets
 
+- [ReplicaSets](https://kubernetes.io/docs/concepts/workloads/controllers/replicaset/)
+
 ```shell
 kubectl create deployment my-apache --image httpd
 kubectl get all

references/S16 Inspecting Kubernetes Resources.md

@@ -0,0 +1,52 @@
+# Inspecting Kubernetes Resources
+
+## Inspecting Resources with Get
+
+```shell
+kubectl get all
+kubectl create deployment my-apache --image httpd --replicas 2
+kubectl get all -o wide
+kubectl get deploy/my-apache -o yaml
+```
+
+## Inspecting Resources with Describe
+
+```shell
+kubectl describe deploy/my-apache
+kubectl describe pod/my-apache-xxxx-yyyy
+kubectl get nodes
+kubectl get node/docker-desktop -o wide
+kubectl describe node/docker-desktop
+```
+
+## Watching Resources
+
+```shell
+# in first window
+kubectl get pods -w
+# in second window
+kubectl delete pod/my-apache-xxxx-yyyy
+# in first window
+kubectl get events
+kubectl get events --watch-only
+# in second window
+kubectl delete pod/my-apache-xxxx-yyyy
+```
+
+## Container Logs in Kubernetes
+
+- [System Logs](https://kubernetes.io/docs/concepts/cluster-administration/system-logs/)
+- [Debug Running Pods](https://kubernetes.io/docs/tasks/debug/debug-application/debug-running-pod/)
+- [Logging Architecture](https://kubernetes.io/docs/concepts/cluster-administration/logging/)
+- [Loki - Like Prometheus, but for logs](https://github.com/grafana/loki)
+- [ELK Stack](https://www.elastic.co/what-is/elk-stack)
+
+```shell
+kubectl logs deploy/my-apache
+kubectl logs deploy/my-apache --follow --tail 1
+kubectl logs pod/my-apache-xx-yy -c httpd
+kubectl logs pod/my-apache-xx-yy --all-containers=true
+kubectl logs -l app=my-apache
+# cleanup
+kubectl delete deployment my-apache
+```

written-lectures/1.18-changes-to-kubectl-run.md

@@ -0,0 +1,31 @@
+# Creating Pods vs. Deployments in 1.18+
+
+**Starting in version 1.18 (released March 2020), the `kubectl run` command only does one thing: create single pods.** There were many reasons for this, but the big ones were to reduce the complexity of how the `run` command worked and to move other resource creation to the `kubectl create` command. The idea is that `kubectl run` is now similar to `docker run`. It creates a single pod, where `docker run` creates a single container.
+
+Now that everyone's finally using newer versions like 1.27+ I've replaced these videos. You can follow along on my course updates GitHub project: [bret.show/courseupdates](https://bret.show/courseupdates)
+
+Depending on which version of Kubernetes you have installed, you'll need to decide how you'll create objects. Here's a cheat sheet for how old commands should be used with the 1.18+ changes.
+
+**The bold parts are what has changed since 1.18.**
+
+## Create a single pod in 1.18+
+
+`kubectl run nginx --image nginx`
+
+## Create a single pod with a custom command in 1.18+
+
+`kubectl run pingpong --image alpine --command -- ping 1.1.1.1`
+
+## Create a deployment in 1.18+
+
+`kubectl create deployment nginx --image nginx`
+
+## Create a deployment with a custom command in 1.18+
+
+`kubectl create deployment pingpong --image alpine -- ping 1.1.1.1`
+
+Notice the double dash `--` which separates the kubectl command options from the COMMAND you want to override when starting the containers.
+
+Also notice that `run` requires the `--command -- <cmd> <arg>` while the `create deployment` just needs `-- <cmd> <arg>` at the end.
+
+For more info on the create deployment options, check out the help at `kubectl create deployment --help` 

written-lectures/cheat-sheets-for-kubectl.md

@@ -0,0 +1,17 @@
+# Cheat Sheets for Kubectl
+
+The kubectl CLI for Kubernetes can be more complex than Docker tools, so people have created cheat sheets.
+
+**Here are a few from the official Kubernetes docs:**
+
+[kubectl Cheat Sheet](https://kubernetes.io/docs/reference/kubectl/cheatsheet/)
+
+[kubectl for Docker Users](https://kubernetes.io/docs/reference/kubectl/docker-cli-to-kubectl/)
+
+**And this is an [entire website](https://cheatography.com/) full of cheat sheets, and you can make your own.**
+
+[Some kubectl commands and resources](https://cheatography.com/deleted-44122/cheat-sheets/kubectl/)
+
+[Kubernetes concepts](https://cheatography.com/gauravpandey44/cheat-sheets/kubernetes-k8s/)
+
+And, of course, remember the inline help with `--help`.  Even just typing `kubectl` and hitting enter will show you short descriptions of all the major commands.