kubed-sh hot-reload by mhausenblas

Preparation

Before we launch kubed-sh, let's get some examples set up:

git clone https://github.com/mhausenblas/kubed-sh.git cd kubed-sh/tc/node/

Now let's first launch kubed-sh like so:

kubed-sh

Now we create a second terminal session and launch vi in it to edit a script called test.js:

cd kubed-sh/tc/node/ vi test.js

OK, so now we have kubed-sh in one session and the Node.js script test.js in an another session, in the vi editor set up.

Updates

Back in the first terminal session, first we need to enable the experimental hot-reload feature:

HOTRELOAD=true

Now let's launch a Node.js app server defined in test.js:

node test.js &

ps

… and check the Node.js app server:

curl test

Now, go to the terminal session where you've launched vi test.js and update its content, for example by changing Hello from Node.js. Then, execute the curl test command again and witness the updated code live.

Note:

To edit something in vi, press i (puts vi into INSERT mode) and when done, hit the ESC key.
To save something in vi, first make sure you've hit ESC (puts vi into COMMAND mode) and then punch in :w and confirm with ENTER.
To exit vi, again, first make sure you've hit ESC and then enter :q and confirm with ENTER.

Learn more …

Learn more about how to use kubed-sh here:

Introducing kubed-sh (5min video on YouTube)
kubed-sh demo: hot-reload (2min video on Loom)

cd <directory>	Change directory
ls	List directory
echo 'contents' > <file>	Write contents to a file
cat <file>	Output contents of file

i	In Command Mode	Change into Insert Mode, you can now insert and edit text in the file
esc	In Insert Mode	Change into Command Mode, you can now execute commands
:wq	In Command Mode	Save and Exit

Welcome!

kubed-sh hot-reload

Congratulations!

You've completed the scenario!

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