Add deployment scripts

This commit is contained in:
Ben Sturmfels 2023-05-02 16:34:25 +10:00
parent 3f31086dd8
commit 9cb0c6f676
Signed by: bsturmfels
GPG key ID: 023C05E2C9C068F0
3 changed files with 305 additions and 0 deletions

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deploy/basics.yml Normal file
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# Basic Ansible playbook to set up security essentials: Nginx dhparams, fail2ban,
# unattended-upgrades, history logging, firewall, no SSH keys and Postfix
# relay/rewriting/aliases.
#
# Run with:
# ANSIBLE_STDOUT_CALLBACK=debug ansible-playbook deploy/basics.yml -i deploy/inventory.yml --verbose
- hosts: web
become: true
vars:
ansible_ssh_pipelining: true
tasks:
- name: Generate dhparams file for HTTP2
ansible.builtin.command:
cmd: openssl dhparam -out /etc/nginx/dhparam.pem 2048
creates: /etc/nginx/dhparam.pem
- name: Install fail2ban
apt:
pkg: fail2ban
- name: Install unattended-upgrades
apt:
pkg: unattended-upgrades
- name: Configure unattended upgrades overrides
# See defaults in 50unattended-upgrades.
copy:
dest: /etc/apt/apt.conf.d/20auto-upgrades
content: |
APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Unattended-Upgrade "1";
Unattended-Upgrade::Automatic-Reboot "true";
Unattended-Upgrade::Automatic-Reboot-Time "02:00";
Unattended-Upgrade::Mail "root";
- name: Add extensive history logging
blockinfile:
path: /etc/bash.bashrc
block: |
# Write to history file immediately (rather than only when shell is
# closed). For setting history length see HISTSIZE and HISTFILESIZE in
# bash(1).
shopt -s histappend
PROMPT_COMMAND='history -a'
HISTSIZE=1000000
HISTFILESIZE=1000000
insertafter: EOF
- name: Install `netfilter-persistent` && `iptables-persistent` packages
apt:
pkg:
- iptables-persistent
- netfilter-persistent
- name: Flush existing firewall rules
iptables:
flush: true
- name: Firewall rule - allow all loopback traffic
iptables:
action: append
chain: INPUT
in_interface: lo
jump: ACCEPT
- name: Firewall rule - allow established connections
iptables:
chain: INPUT
ctstate: ESTABLISHED,RELATED
jump: ACCEPT
- name: Firewall rule - allow port ping traffic
iptables:
chain: INPUT
jump: ACCEPT
protocol: icmp
- name: Firewall rule - allow port 22/SSH traffic
iptables:
chain: INPUT
destination_port: '22'
jump: ACCEPT
protocol: tcp
- name: Firewall rule - allow port 80/HTTP traffic
iptables:
chain: INPUT
destination_port: '80'
jump: ACCEPT
protocol: tcp
- name: Firewall rule - allow port 443/HTTPS traffic
iptables:
chain: INPUT
destination_port: '443'
jump: ACCEPT
protocol: tcp
- name: Firewall rule - drop any traffic without rule
iptables:
chain: INPUT
jump: DROP
- name: Disable SSH password authentication
lineinfile:
path: /etc/ssh/sshd_config
line: 'PasswordAuthentication no'
regexp: 'PasswordAuthentication '
# Postfix
- name: Postfix
apt:
pkg:
- postfix
- mailutils
## Commented because you only want this on first run ever.
# - name: Add file for SMTP credentials
# copy:
# dest: /etc/postfix/sasl_passwd
# content: |-
# # After updating, run `sudo postmap hash:/etc/postfix/sasl_passwd`.
# [pine.sfconservancy.org]:587 conference@sfconservancy.org:PASSWORD
- name: Configure Postfix envelope rewriting
copy:
dest: /etc/postfix/canonical
content: |-
/./ conference@sfconservancy.org
- name: Configure Postfix From header rewriting
copy:
dest: /etc/postfix/header_checks
content: |-
/^From:.*/ REPLACE From: conference@sfconservancy.org
- name: Configure Postfix for relaying
copy:
src: postfix/main.cf
dest: /etc/postfix/main.cf
- name: Alias mail to root
copy:
dest: /etc/aliases
content: |-
postmaster: root
root: sysadmin@sfconservancy.org, sysadmin@sturm.com.au

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deploy/postfix/main.cf Normal file
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# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on
# fresh installs.
compatibility_level = 2
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = symposion.sfconservancy.org
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, symposion.novalocal, symposion, localhost
relayhost = [pine.sfconservancy.org]:587
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = loopback-only
inet_protocols = all
# Relay to Conservancy
#
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = secure
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
# Increase default limit of 10M to 50M
message_size_limit = 51200000
# This configuration rewrites both envelope sender and From header to a single
# fixed address so that all outgoing mail, including cron emails, can be
# delivered through a single user-grade SMTP account.
#
# Envelope
canonical_maps = regexp:/etc/postfix/canonical
canonical_classes = envelope_sender
# From header
smtp_header_checks = regexp:/etc/postfix/header_checks

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"""Automated deployment with Fabric.
To deploy to production:
python3 -m pip install --user vps-deploy
export FABRIC_HOSTS=user@hostname
fab deploy
"""
import os
from fabric import task # type: ignore
from invoke.collection import Collection # type: ignore
from patchwork.files import exists
from vps_deploy import django_fabric2 as df2 # type: ignore
hosts = os.environ['FABRIC_HOSTS'].split(',')
def install_essentials(c):
# ImageMagick (convert) and Inkscape required for generating badges.
c.run('sudo apt-get install -yy git python3-dev python3-venv python3-wheel build-essential python3-cairocffi python3-psycopg2 postgresql uwsgi-emperor uwsgi-plugin-python3 memcached netcat nginx certbot libmemcached-dev xmlsec1 imagemagick inkscape')
@task(hosts=hosts)
def deploy(c):
install_essentials(c)
df2.transfer_files_git(c)
df2.init(c)
if not exists(c, c.env.virtualenv):
c.sudo(f'mkdir -p $(dirname {c.env.virtualenv})')
c.sudo(f'chown {c.user} $(dirname {c.env.virtualenv})')
c.run('{env.python} -m venv --system-site-packages {env.virtualenv}'.format(env=c.env))
with c.cd(c.env.project_dir):
c.run('{env.virtualenv}/bin/python -m pip install -c constraints.txt -r requirements.txt'.format(env=c.env))
# Fixes "AttributeError: install_layout". See:
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1003252
# https://github.com/pypa/setuptools/issues/3278
c.run('SETUPTOOLS_USE_DISTUTILS=stdlib {env.virtualenv}/bin/python -m pip install -c constraints.txt -r vendored_requirements.txt'.format(env=c.env))
df2.prepare_django(c, fail_level='ERROR')
df2.fix_permissions(
c,
read=['pinaxcon', 'vendor', 'static'],
read_write=[],
)
df2.reload_uwsgi(c)
df2.flush_memcached(c)
df2.update_nginx(c)
df2.install_scheduled_jobs(
c,
periodic_jobs=[
'deploy/cron/cron.daily',
],
)
df2.check_site_online(c)
# The "ns" appears to be a magic name.
ns = Collection(
deploy,
task(df2.download_postgres_db, hosts=hosts),
task(df2.mirror_postgres_db, hosts=hosts),
task(df2.mirror_media, hosts=hosts),
task(df2.django_shell, hosts=hosts),
task(df2.bash, hosts=hosts),
)
ns.configure({
# Built-in Fabric config.
'run': {
'echo': True,
# Needed so local commands work. Can also use FABRIC_RUN_REPLACE_ENV.
'replace_env': False,
},
# Our custom project config.
'env': {
'branch': 'fossy2023',
'app_user': 'www-data',
'db_name': 'symposion',
'project_dir': '/srv/symposion_app',
'media_dir': 'media',
'virtualenv': '/srv/venvs/symposion-django-py39',
'site_name': 'symposion',
'requirements': 'requirements.txt',
'settings': 'pinaxcon.settings',
'uwsgi_conf': 'deploy/uwsgi.ini',
'nginx_conf': 'deploy/nginx.conf',
'python': '/usr/bin/python3.9',
'url': 'https://2023.fossy.us/',
'domain': '2023.fossy.us',
},
})