bundlewrap/bundles/mailman/metadata.py

149 lines
3.7 KiB
Python

import base64
def derive_mailadmin_secret(metadata, salt):
node_id = metadata.get('id')
raw = base64.b64decode(
repo.vault.random_bytes_as_base64_for(f'{node_id}_{salt}', length=32).value
)
return base64.urlsafe_b64encode(raw).rstrip(b'=').decode('ascii')
defaults = {
'apt': {
'packages': {
'mailman3-full': {
'needs': {
'postgres_db:mailman',
'postgres_role:mailman',
'zfs_dataset:tank/mailman',
}
},
'postfix': {},
'python3-psycopg2': {
'needed_by': {
'pkg_apt:mailman3-full',
},
},
'apache2': {
'installed': False,
'needs': {
'pkg_apt:mailman3-full',
},
},
},
},
'zfs': {
'datasets': {
'tank/mailman': {
'mountpoint': '/var/lib/mailman3',
},
},
},
}
@metadata_reactor.provides(
'postgresql',
'mailman',
)
def postgresql(metadata):
node_id = metadata.get('id')
db_password = repo.vault.password_for(f'{node_id} database mailman')
return {
'postgresql': {
'databases': {
'mailman': {
'owner': 'mailman',
},
},
'roles': {
'mailman': {
'password': db_password,
},
},
},
'mailman': {
'db_password': db_password,
},
}
@metadata_reactor.provides(
'nginx/vhosts',
)
def nginx(metadata):
return {
'nginx': {
'vhosts': {
metadata.get('mailman/hostname'): {
'content': 'mailman/vhost.conf',
},
},
},
}
@metadata_reactor.provides(
'mailman/secret_key',
)
def secret_key(metadata):
import base64
node_id = metadata.get('id')
raw = base64.b64decode(
repo.vault.random_bytes_as_base64_for(f'{node_id}_mailman_secret_key', length=32).value
)
secret_key = base64.urlsafe_b64encode(raw).rstrip(b'=').decode('ascii')
return {
'mailman': {
'secret_key': secret_key,
},
}
@metadata_reactor.provides(
'mailman',
)
def secrets(metadata):
return {
'mailman': {
'web_secret': derive_mailadmin_secret(metadata, 'secret_key'),
'api_password': derive_mailadmin_secret(metadata, 'api_password'),
'archiver_key': derive_mailadmin_secret(metadata, 'archiver_key'),
},
}
@metadata_reactor.provides(
'dns',
)
def dns(metadata):
report_email = metadata.get('mailman/dmarc_report_email')
return {
'dns': {
metadata.get('mailman/hostname'): {
'MX': [f"5 {metadata.get('mailman/hostname')}."],
'TXT': [
'v=spf1 a mx -all',
'; '.join(f'{k}={v}' for k, v in {
# dmarc version
'v': 'DMARC1',
# reject on failure
'p': 'reject',
# standard reports
'rua': f'mailto:{report_email}',
# forensic reports
'fo': 1,
'ruf': f'mailto:{report_email}',
# require alignment between the DKIM domain and the parent Header From domain
'adkim': 's',
# require alignment between the SPF domain (the sender) and the Header From domain
'aspf': 's',
}.items())
],
},
},
}