Salt

The Salt states that underpin... well... pretty much everything.

by Scott Smitelli

Ye Olde Quicke Starte

All the below commands assume the user is already root.

hostnamectl set-hostname hostname.fqdn.com
reboot

cd $(mktemp -d)
curl -o bootstrap-salt.sh -L https://bootstrap.saltproject.io
sh bootstrap-salt.sh -X -F -c /tmp

# https://github.com/saltstack/salt-bootstrap/issues/1933
apt-get install build-essential libmariadb-dev
salt-pip install mysqlclient

mkdir -p /etc/salt/gpgkeys /srv/salt
# install {pub,sec}ring.gpg into /etc/salt/gpgkeys/
# install ./ into /srv/salt/
cp /srv/salt/states/salt/files/minion.conf /etc/salt/minion.d/00-minion.conf
salt-call --log-level=info --local state.apply

Using the Vagrant environment:

vagrant up

That's really all there is to it. By default no interesting states/pillars are loaded, the GPG keys are missing, and the guest VM doesn't do anything useful. Presumably you know what you want to do and how to accomplish it.

The Vagrantfile uses port 80 on the host for the guest's web server, which some host OSes may not like.

Run states:

sudo salt-call --local state.apply

Meaningful data may be stored in any of the following locations:

• /etc/letsencrypt
• /var/lib/awstats
• /var/lib/myautodump2
• /var/lib/mysql
• /var/opt/website

Create a brand-new key pair (this requires redoing all the pillar encryption):

gpg --homedir /etc/salt/gpgkeys --gen-key

• Key type: RSA and RSA
• Key size: 4096
• Key is valid for: 0 (does not expire)
• Real name: salt@smitelli.com
• Email address: salt@smitelli.com
• Comment: [empty]
• Passphrase: [empty]

Encode a secret (make sure you consider if you want or don't want -n):

echo -n 'SECRET' | sudo gpg --homedir /etc/salt/gpgkeys --armor --batch --trust-model always --encrypt -r salt@smitelli.com

Create an /etc/shadow password hash:

openssl passwd -1  # MD5
openssl passwd -6  # SHA-512

Create SSH keypairs:

ssh-keygen -o -t ed25519 -f ...
ssh-keygen -o -t rsa -b 2048 -f ...
ssh-keygen -o -t ecdsa -b 521 -f ...

TODOs:

• Content-Security-Policy and Feature-Policy for each website
• Go through EVERY SINGLE include and requisite to make sure states are atomic
• Check that each website works in isolation
• icinga2: https://blog.sleeplessbeastie.eu/2018/01/15/how-to-install-icinga2-and-icingaweb2/
• ...or NetData: https://www.netdata.cloud/
• gallery throws deprecation warnings on install
• TnF smarty version has a deprecation warning