lix/releng/environment.py

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from typing import Callable
import urllib.parse
import re
import functools
import subprocess
import dataclasses
S3_HOST = 's3.lix.systems'
S3_ENDPOINT = 'https://s3.lix.systems'
DEFAULT_STORE_URI_BITS = {
'region': 'garage',
'endpoint': 's3.lix.systems',
'want-mass-query': 'true',
'write-nar-listing': 'true',
'ls-compression': 'zstd',
'narinfo-compression': 'zstd',
'compression': 'zstd',
'parallel-compression': 'true',
}
@dataclasses.dataclass
class DockerTarget:
registry_path: str
"""Registry path without the tag, e.g. ghcr.io/lix-project/lix"""
tags: list[str]
"""List of tags this image should take. There must be at least one."""
@staticmethod
def resolve(item: str, version: str, major: str) -> str:
"""
Applies templates:
- version: the Lix version e.g. 2.90.0
- major: the major Lix version e.g. 2.90
"""
return item.format(version=version, major=major)
def registry_name(self) -> str:
[a, _, _] = self.registry_path.partition('/')
return a
@dataclasses.dataclass
class RelengEnvironment:
name: str
colour: Callable[[str], str]
cache_store_overlay: dict[str, str]
cache_bucket: str
releases_bucket: str
docs_bucket: str
git_repo: str
docker_targets: list[DockerTarget]
def cache_store_uri(self):
qs = DEFAULT_STORE_URI_BITS.copy()
qs.update(self.cache_store_overlay)
return self.cache_bucket + "?" + urllib.parse.urlencode(qs)
SGR = '\x1b['
RED = '31;1m'
GREEN = '32;1m'
RESET = '0m'
def sgr(colour: str, text: str) -> str:
return f'{SGR}{colour}{text}{SGR}{RESET}'
STAGING = RelengEnvironment(
name='staging',
colour=functools.partial(sgr, GREEN),
docs_bucket='s3://staging-docs',
cache_bucket='s3://staging-cache',
cache_store_overlay={'secret-key': 'staging.key'},
releases_bucket='s3://staging-releases',
git_repo='ssh://git@git.lix.systems/lix-project/lix-releng-staging',
docker_targets=[
# latest will be auto tagged if appropriate
DockerTarget('git.lix.systems/lix-project/lix-releng-staging',
tags=['{version}', '{major}']),
DockerTarget('ghcr.io/lix-project/lix-releng-staging',
tags=['{version}', '{major}']),
],
)
GERRIT_REMOTE_RE = re.compile(r'^ssh://(\w+@)?gerrit.lix.systems:2022/lix$')
def guess_gerrit_remote():
"""
Deals with people having unknown gerrit username.
"""
out = [
x.split()[1] for x in subprocess.check_output(
['git', 'remote', '-v']).decode().splitlines()
]
return next(x for x in out if GERRIT_REMOTE_RE.match(x))
PROD = RelengEnvironment(
name='production',
colour=functools.partial(sgr, RED),
docs_bucket='s3://docs',
cache_bucket='s3://cache',
# FIXME: we should decrypt this with age into a tempdir in the future, but
# the issue is how to deal with the recipients file. For now, we should
# just delete it after doing a release.
cache_store_overlay={'secret-key': 'prod.key'},
releases_bucket='s3://releases',
git_repo=guess_gerrit_remote(),
docker_targets=[
# latest will be auto tagged if appropriate
DockerTarget('git.lix.systems/lix-project/lix',
tags=['{version}', '{major}']),
DockerTarget('ghcr.io/lix-project/lix', tags=['{version}', '{major}']),
],
)
ENVIRONMENTS = {
'staging': STAGING,
'production': PROD,
}
@dataclasses.dataclass
class S3Credentials:
name: str
id: str
secret_key: str