Watched through ch. 9

1 files changed, 71 insertions, 0 deletions

diff --git a/kubernetes_cheat_sheet.md b/kubernetes_cheat_sheet.md
new file mode 100644
index 0000000..e8c4bd1
--- /dev/null
+++ b/kubernetes_cheat_sheet.md
@@ -0,0 +1,71 @@
+# Kubernetes Cheat Sheet
+
+## kubectl CLI
+
+### Context
+
+|                                      |                             |
+|--------------------------------------|-----------------------------|
+|`kubectl config current-context`      |Get the current context      |
+|`kubectl config get-contexts`         |List all context             |
+|`kubectl config use-context [contextName]`|Set the current context  |
+|`kubectl config delete-context [contextName]`|Delete a context from the config file|
+
+### Misc.
+
+|                                      |                             |
+|--------------------------------------|-----------------------------|
+|`kubectl create -f [YAML file]`       |Create an object using YAML  |
+
+---
+
+### `kubectx`
+
+- Separate program that acts as an alias for `kubectl config use-context`
+    - *Fast way to switch between clusters and namespaces in kubectl*
+
+---
+
+### Declarative vs Imperative
+
+#### Declarative Example - YAML File
+
+```yaml
+apiVersion: v1
+kind: Pod
+metadata:
+  name: myapp-pod
+  labels:
+    app: myapp
+    type: front-end
+spec:
+  containers:
+    name: nginx-container
+    image: nginx
+```
+
+#### Imperative Example - Series of commands
+
+```sh
+kubectl run mynginx --image=nginx --port=80
+
+kubectl create deploy mynginx --image=nginx --port=80 --replicas=3
+
+kubectl create service nodeport myservice --targetPort=8080
+
+kubectl delete pod nginx
+```
+
+### YAML required properties
+
+- Root level required properties
+    - `apiVersion`
+        - Api version of the object
+    - `kind`
+        - type of object
+    - `metadata.name`
+        - unique name for the object
+    - `metadata.namespace`
+        - scoped environment name (will default to current)
+    - `spec`
+        - object specifications or desired state