Install Redis cache & phpMyAdmin on WordPress DDEV environment

Install Redis

1. Connect to your Ubuntu WSL2 machine
2. Navigate to the project cd ~/dev/your-website
3. Go to this link https://github.com/ddev/ddev-redis and follow the installation instructions

1. ddev add-on get ddev/ddev-redis
2. Create or edit .ddev/config.yaml and add:

hooks:
  post-start:
    - exec: |
        wp config set WP_REDIS_HOST redis --type=constant
        wp config set WP_REDIS_PORT 6379 --type=constant --raw
        wp config set WP_REDIS_DATABASE 0 --type=constant --raw
        wp config set WP_REDIS_CLIENT phpredis --type=constant

This uses WP-CLI to inject the constants into wp-config.php every time DDEV starts or restarts, so you never have to worry about it being wiped.

Then run:

ddev restart

And verify:

ddev exec wp config get WP_REDIS_HOST

Should return redis.

The constants are we dynamically creating are these:

define('WP_REDIS_HOST', 'redis');
define('WP_REDIS_PORT', 6379);
define('WP_REDIS_DATABASE', 0);
define('WP_REDIS_CLIENT', 'phpredis');

Now you are ready to connect the redis server with your WordPress dev website. Enjoy!

Install phpMyAdmin

You need to install it ddev add-on get ddev/ddev-phpmyadmin && ddev restart and then you can execute 
ddev phpmyadmin to call phpmyadmin.