Patrik Lundin
281f818062
* Only update cosmos-modules.conf if a change is needed * Do an atomic replace of the file if updating it * Add a note at the top mentioning that it is tool-generated * Make pylint and black happy Tested in ubuntu 18.04.
217 lines
6.3 KiB
Python
Executable file
217 lines
6.3 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
""" Write out a puppet cosmos-modules.conf """
|
|
|
|
import hashlib
|
|
import os
|
|
import os.path
|
|
import sys
|
|
|
|
try:
|
|
from configobj import ConfigObj
|
|
|
|
OS_INFO = ConfigObj("/etc/os-release")
|
|
except (IOError, ModuleNotFoundError):
|
|
OS_INFO = None
|
|
|
|
|
|
def get_file_hash(modulesfile):
|
|
"""
|
|
Based on https://github.com/python/cpython/pull/31930: should use
|
|
hashlib.file_digest() but it is only available in python 3.11
|
|
"""
|
|
try:
|
|
with open(modulesfile, "rb") as fileobj:
|
|
digestobj = hashlib.sha256()
|
|
_bufsize = 2**18
|
|
buf = bytearray(_bufsize) # Reusable buffer to reduce allocations.
|
|
view = memoryview(buf)
|
|
while True:
|
|
size = fileobj.readinto(buf)
|
|
if size == 0:
|
|
break # EOF
|
|
digestobj.update(view[:size])
|
|
except FileNotFoundError:
|
|
return ""
|
|
|
|
return digestobj.hexdigest()
|
|
|
|
|
|
def get_list_hash(file_lines):
|
|
"""Get hash of list contents"""
|
|
|
|
file_lines_hash = hashlib.sha256()
|
|
for line in file_lines:
|
|
file_lines_hash.update(line)
|
|
|
|
return file_lines_hash.hexdigest()
|
|
|
|
|
|
def create_file_content(modules):
|
|
"""
|
|
Write out the expected file contents to a list so we can check the
|
|
expected checksum before writing anything
|
|
"""
|
|
file_lines = []
|
|
file_lines.append(
|
|
"# Generated by {}\n".format( # pylint: disable=consider-using-f-string
|
|
os.path.basename(sys.argv[0])
|
|
).encode("utf-8")
|
|
)
|
|
for key in modules:
|
|
file_lines.append(
|
|
"{0:11} {1} {2} {3}\n".format( # pylint: disable=consider-using-f-string
|
|
key,
|
|
modules[key]["repo"],
|
|
modules[key]["upgrade"],
|
|
modules[key]["tag"],
|
|
).encode("utf-8")
|
|
)
|
|
|
|
return file_lines
|
|
|
|
|
|
def main():
|
|
"""Starting point of the program"""
|
|
|
|
modulesfile: str = "/etc/puppet/cosmos-modules.conf"
|
|
modulesfile_tmp: str = modulesfile + ".tmp"
|
|
|
|
modules: dict = {
|
|
"concat": {
|
|
"repo": "https://github.com/SUNET/puppetlabs-concat.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"stdlib": {
|
|
"repo": "https://github.com/SUNET/puppetlabs-stdlib.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"cosmos": {
|
|
"repo": "https://github.com/SUNET/puppet-cosmos.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"ufw": {
|
|
"repo": "https://github.com/SUNET/puppet-module-ufw.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"apt": {
|
|
"repo": "https://github.com/SUNET/puppetlabs-apt.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"vcsrepo": {
|
|
"repo": "https://github.com/SUNET/puppetlabs-vcsrepo.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"xinetd": {
|
|
"repo": "https://github.com/SUNET/puppetlabs-xinetd.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"python": {
|
|
"repo": "https://github.com/SUNET/puppet-python.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"hiera-gpg": {
|
|
"repo": "https://github.com/SUNET/hiera-gpg.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"pound": {
|
|
"repo": "https://github.com/SUNET/puppet-pound.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"augeas": {
|
|
"repo": "https://github.com/SUNET/puppet-augeas.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"bastion": {
|
|
"repo": "https://github.com/SUNET/puppet-bastion.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"pyff": {
|
|
"repo": "https://github.com/samlbits/puppet-pyff.git",
|
|
"upgrade": "yes",
|
|
"tag": "puppet-pyff-*",
|
|
},
|
|
"dhcp": {
|
|
"repo": "https://github.com/SUNET/puppetlabs-dhcp.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet_dev-2*",
|
|
},
|
|
"varnish": {
|
|
"repo": "https://github.com/samlbits/puppet-varnish.git",
|
|
"upgrade": "yes",
|
|
"tag": "puppet-varnish-*",
|
|
},
|
|
"apparmor": {
|
|
"repo": "https://github.com/SUNET/puppet-apparmor.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"docker": {
|
|
"repo": "https://github.com/SUNET/garethr-docker.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"network": {
|
|
"repo": "https://github.com/SUNET/attachmentgenie-network.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"sunet": {
|
|
"repo": "https://github.com/SUNET/puppet-sunet.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"sysctl": {
|
|
"repo": "https://github.com/SUNET/puppet-sysctl.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
"nagioscfg": {
|
|
"repo": "https://github.com/SUNET/puppet-nagioscfg.git",
|
|
"upgrade": "yes",
|
|
"tag": "sunet-2*",
|
|
},
|
|
}
|
|
|
|
# When/if we want we can do stuff to modules here
|
|
if OS_INFO:
|
|
if OS_INFO["VERSION_CODENAME"] == "bullseye":
|
|
pass
|
|
|
|
# Build list of expected file content
|
|
file_lines = create_file_content(modules)
|
|
|
|
# Get hash of the list
|
|
list_hash = get_list_hash(file_lines)
|
|
|
|
# Get hash of the existing file on disk
|
|
file_hash = get_file_hash(modulesfile)
|
|
|
|
# Update the file if necessary
|
|
if list_hash != file_hash:
|
|
# Since we are reading the file with 'rb' when computing our hash use 'wb' when
|
|
# writing so we dont end up creating a file that does not match the
|
|
# expected hash
|
|
with open(modulesfile_tmp, "wb") as fileobj:
|
|
for line in file_lines:
|
|
fileobj.write(line)
|
|
|
|
# Rename it in place so the update is atomic for anything else trying to
|
|
# read the file
|
|
os.rename(modulesfile_tmp, modulesfile)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|