Update content

slides.md

@@ -55,7 +55,7 @@ layout: center
 
 - "It works on my machine" is a thing of the past
 - Containers are lightweight and portable
-- Boot in milliseconds
+- "Boot" in milliseconds
 - Ideal for reproducible dev environments
 
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@@ -80,12 +80,35 @@ layout: center
 
 ## What is Docker?
 
+- Written in GO
+- Uses Client/Server model with REST API (`docker cli` and `dockerd`)
+- Eco system of tools (Compose, Swarm, etc)
+- Public Image Registry (Dockerhub)
+- Docker client typically runs on same machine as server but doesn't have to
+
+---
+transition: fade-out
+layout: center
+---
+## What is Docker?
+
 - A tool to build and run containers
-- Docker engine runs containers using Linux features:
+- Containers are exclusive to Linux
+- Docker engine runs containers using Linux features like:
   - Namespaces
   - cgroups
   - Union file systems
-- Uses images layered from base -> app code
+- Container runs from an image layered with base image and application code
+
+---
+transition: fade-out
+layout: center
+---
+
+## Common Use Cases
+- Reproducible Dev environments (dev containers)
+- Preview/PR environments (ephemeral test environments)
+- Legacy applications or applications with complex environment setups
 
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@@ -94,7 +117,7 @@ layout: center
 
 ## Docker Architecture
 
-Docker Engine (Server) <-- REST API --> Docker CLI (Client)
+Docker CLI (Client) <-- REST API --> Docker Engine (Server)
 
 <img src="https://docs.docker.com/get-started/images/docker-architecture.webp" width="700" />
 
@@ -139,8 +162,8 @@ layout: center
 
 ## Bind Mount Example
 ```bash
-$ docker run --mount type=bind,src=/home/mikeconrad/projects/example/app,dst=/app,ro # ro for ReadOnly
-$ docker run --volume /home/mikeconrad/projects/example/app:dst=/app
+$ docker run --mount type=bind,src=/home/mikeconrad/projects/example/app,dst=/app,ro nginx # ro for ReadOnly
+$ docker run --volume /home/mikeconrad/projects/example/app:/app nginx
 ```
 <!-- https://docs.docker.com/engine/storage/bind-mounts/ -->
 
@@ -220,14 +243,16 @@ COPY . .
 EXPOSE 3000
 CMD ["npm", "start"]
 ```
+```bash
+mikeconrad@pop-os:~/projects/demystifying-docker/examples/react
+$ docker build -t react-app .
+```
+
 
 - Starts with a base image
 - Copy files and install deps
 - Set default command
 
-```bash
-$ docker build -t node-app .
-```
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