random devops-ish stuff

change file or directory owner

1. see who the owner is w/ `ls -al`
2. use `chown <target-user-name>:<target-user-name> <target directory or file>` ie. `chown user:user dir/file`  
-- use -R if needed (recursive) 

file size alarms going off

source: https://maryrosecook.com/blog/post/freeing-disk-space-on-your-linux-server

1. ssh into box
2. sudo
3. get to root, run `du -h --max-depth=1`
4. follow the trail of the largest directories, removing what you don't need

symfony 3.4 config reload

source: https://symfony.com/doc/3.4/deployment.html#d-clear-your-symfony-cache

1. get to the app root (/var/www perhaps?)
2. find out what env is running?
3. run `php bin/console cache:clear --env=<whatever env> --no-debug`
4. might have to run `php bin/console cache:warmup --env=<whatever env> --no-debug`
5. checkout the `<app root>/var/cache/<whatever env>` folder w/ `ls -al`. ensure the owner matches all the other folders so it is writable by the user running the web service
6. conditionally do the steps for the "change directory/file owner", and do so w/ the -R flag