mirror of
https://github.com/kevinveenbirkenbach/computer-playbook.git
synced 2025-07-07 17:15:15 +02:00
Finished role creator
This commit is contained in:
parent
a1465ef886
commit
75d603db5b
@ -3,10 +3,10 @@ import argparse
|
||||
import os
|
||||
import shutil
|
||||
import sys
|
||||
import yaml
|
||||
import ipaddress
|
||||
import difflib
|
||||
from jinja2 import Environment, FileSystemLoader
|
||||
from ruamel.yaml import YAML
|
||||
|
||||
# Paths to the group-vars files
|
||||
PORTS_FILE = './group_vars/all/09_ports.yml'
|
||||
@ -14,43 +14,48 @@ NETWORKS_FILE = './group_vars/all/10_networks.yml'
|
||||
ROLE_TEMPLATE_DIR = './templates/docker_role'
|
||||
ROLES_DIR = './roles'
|
||||
|
||||
yaml = YAML()
|
||||
yaml.preserve_quotes = True
|
||||
|
||||
def load_yaml(path):
|
||||
|
||||
def load_yaml_with_comments(path):
|
||||
with open(path) as f:
|
||||
return yaml.safe_load(f)
|
||||
return yaml.load(f)
|
||||
|
||||
|
||||
def dump_yaml(data, path):
|
||||
def dump_yaml_with_comments(data, path):
|
||||
with open(path, 'w') as f:
|
||||
yaml.safe_dump(data, f, sort_keys=False)
|
||||
yaml.dump(data, f)
|
||||
|
||||
|
||||
def get_next_network(networks_dict, prefixlen):
|
||||
"""Select the next contiguous subnet by taking the highest existing subnet and adding one network-size offset."""
|
||||
"""Select the next contiguous subnet, based on the highest existing subnet + one network offset."""
|
||||
nets = []
|
||||
for info in networks_dict['defaults_networks']['local'].values():
|
||||
local = networks_dict['defaults_networks']['local']
|
||||
for name, info in local.items():
|
||||
# info is a dict with 'subnet' key
|
||||
net = ipaddress.ip_network(info['subnet'])
|
||||
if net.prefixlen == prefixlen:
|
||||
nets.append(net)
|
||||
if not nets:
|
||||
raise RuntimeError(f"No existing /{prefixlen} networks to base allocation on.")
|
||||
raise RuntimeError(f"No existing /{prefixlen} subnets to base allocation on.")
|
||||
nets.sort(key=lambda n: int(n.network_address))
|
||||
last = nets[-1]
|
||||
offset = last.num_addresses
|
||||
next_network_address = int(last.network_address) + offset
|
||||
return ipaddress.ip_network((next_network_address, prefixlen))
|
||||
next_net = ipaddress.ip_network((int(last.network_address) + offset, prefixlen))
|
||||
return next_net
|
||||
|
||||
|
||||
def get_next_port(ports_dict, category):
|
||||
"""Assign the next port by taking max existing and adding one."""
|
||||
existing = [int(p) for p in ports_dict['ports']['localhost'].get(category, {}).values()]
|
||||
"""Assign the next port by taking the max existing plus one."""
|
||||
loc = ports_dict['ports']['localhost'][category]
|
||||
existing = [int(v) for v in loc.values()]
|
||||
return (max(existing) + 1) if existing else 1
|
||||
|
||||
|
||||
def prompt_conflict(dst_file):
|
||||
"""Prompt the user to resolve a file conflict."""
|
||||
print(f"Conflict detected: {dst_file}")
|
||||
print("Choose action: [1] overwrite, [2] skip, [3] merge")
|
||||
print("[1] overwrite, [2] skip, [3] merge")
|
||||
choice = None
|
||||
while choice not in ('1', '2', '3'):
|
||||
choice = input("Enter 1, 2, or 3: ").strip()
|
||||
@ -58,12 +63,7 @@ def prompt_conflict(dst_file):
|
||||
|
||||
|
||||
def render_templates(src_dir, dst_dir, context):
|
||||
"""Recursively render all templates from src_dir into dst_dir, handling conflicts."""
|
||||
env = Environment(
|
||||
loader=FileSystemLoader(src_dir),
|
||||
keep_trailing_newline=True,
|
||||
autoescape=False,
|
||||
)
|
||||
env = Environment(loader=FileSystemLoader(src_dir), keep_trailing_newline=True, autoescape=False)
|
||||
env.filters['bool'] = lambda x: bool(x)
|
||||
|
||||
for root, _, files in os.walk(src_dir):
|
||||
@ -73,89 +73,91 @@ def render_templates(src_dir, dst_dir, context):
|
||||
for fn in files:
|
||||
tpl = env.get_template(os.path.join(rel, fn))
|
||||
rendered = tpl.render(**context)
|
||||
out_name = fn[:-3] if fn.endswith('.j2') else fn
|
||||
dst_file = os.path.join(target, out_name)
|
||||
out = fn[:-3] if fn.endswith('.j2') else fn
|
||||
dst_file = os.path.join(target, out)
|
||||
|
||||
if os.path.exists(dst_file):
|
||||
choice = prompt_conflict(dst_file)
|
||||
if choice == '2': # skip
|
||||
if choice == '2':
|
||||
print(f"Skipping {dst_file}")
|
||||
continue
|
||||
if choice == '3': # merge: append lines not present
|
||||
if choice == '3':
|
||||
with open(dst_file) as f_old:
|
||||
old = f_old.readlines()
|
||||
new = rendered.splitlines(keepends=True)
|
||||
add = [l for l in new if l not in old]
|
||||
if add:
|
||||
old_lines = f_old.readlines()
|
||||
new_lines = rendered.splitlines(keepends=True)
|
||||
additions = [l for l in new_lines if l not in old_lines]
|
||||
if additions:
|
||||
with open(dst_file, 'a') as f:
|
||||
f.writelines(add)
|
||||
print(f"Merged {len(add)} new lines into {dst_file}")
|
||||
f.writelines(additions)
|
||||
print(f"Merged {len(additions)} lines into {dst_file}")
|
||||
else:
|
||||
print(f"Nothing new to merge in {dst_file}")
|
||||
print(f"No new lines to merge into {dst_file}")
|
||||
continue
|
||||
# overwrite
|
||||
print(f"Overwriting {dst_file}")
|
||||
with open(dst_file, 'w') as f:
|
||||
f.write(rendered)
|
||||
else:
|
||||
# new file
|
||||
# create new file
|
||||
with open(dst_file, 'w') as f:
|
||||
f.write(rendered)
|
||||
|
||||
|
||||
def main():
|
||||
# load dynamic port categories
|
||||
ports_yaml = load_yaml(PORTS_FILE)
|
||||
categories = list(ports_yaml.get('ports', {}).get('localhost', {}).keys())
|
||||
# Load dynamic port categories
|
||||
ports_data = load_yaml_with_comments(PORTS_FILE)
|
||||
categories = list(ports_data['ports']['localhost'].keys())
|
||||
|
||||
parser = argparse.ArgumentParser(
|
||||
description="Create or update a Docker Ansible role, assign network and ports globally"
|
||||
description="Create or update a Docker Ansible role, and globally assign network and ports with comments preserved"
|
||||
)
|
||||
parser.add_argument('-a', '--application-id', required=True, help="Unique application ID")
|
||||
parser.add_argument('-n', '--network', choices=['24', '28'], required=True,
|
||||
help="Network prefix length (/24 or /28)")
|
||||
parser.add_argument('-p', '--ports', nargs='+', choices=categories, required=True,
|
||||
help=f"Port categories to assign (allowed: {', '.join(categories)})")
|
||||
parser.add_argument('-n', '--network', choices=['24', '28'], required=True, help="Network prefix length (/24 or /28)")
|
||||
parser.add_argument('-p', '--ports', nargs='+', choices=categories, required=True, help=f"Port categories to assign (allowed: {', '.join(categories)})")
|
||||
args = parser.parse_args()
|
||||
|
||||
app = args.application_id
|
||||
role = f"docker-{app}"
|
||||
role_dir = os.path.join(ROLES_DIR, role)
|
||||
|
||||
# ensure role dir exists, prompt if updating
|
||||
if os.path.exists(role_dir):
|
||||
if input(f"Role {role} exists. Continue update? [y/N]: ").strip().lower() != 'y':
|
||||
print("Aborted.")
|
||||
if input(f"Role {role} exists. Continue? [y/N]: ").strip().lower() != 'y':
|
||||
print("Aborting.")
|
||||
sys.exit(1)
|
||||
else:
|
||||
os.makedirs(role_dir)
|
||||
|
||||
# 1) render templates
|
||||
render_templates(ROLE_TEMPLATE_DIR, role_dir, {'application_id': app,
|
||||
'role_name': role,
|
||||
'database_type': 0})
|
||||
# 1) Render all templates with conflict handling
|
||||
render_templates(ROLE_TEMPLATE_DIR, role_dir, {'application_id': app, 'role_name': role, 'database_type': 0})
|
||||
print(f"→ Templates applied to {role_dir}")
|
||||
|
||||
# 2) assign and update global networks
|
||||
nets = load_yaml(NETWORKS_FILE)
|
||||
net = get_next_network(nets, int(args.network))
|
||||
nets['defaults_networks']['local'][app] = str(net)
|
||||
dump_yaml(nets, NETWORKS_FILE)
|
||||
print(f"→ Assigned network {net} to {app} in {NETWORKS_FILE}")
|
||||
# 2) Update global networks file, preserving comments
|
||||
networks = load_yaml_with_comments(NETWORKS_FILE)
|
||||
prefix = int(args.network)
|
||||
new_net = get_next_network(networks, prefix)
|
||||
networks['defaults_networks']['local'][app] = {'subnet': str(new_net)}
|
||||
shutil.copy(NETWORKS_FILE, NETWORKS_FILE + '.bak')
|
||||
dump_yaml_with_comments(networks, NETWORKS_FILE)
|
||||
print(f"→ Assigned network {new_net} in {NETWORKS_FILE}")
|
||||
|
||||
# 3) assign and update global ports
|
||||
# 3) Update global ports file, preserving comments
|
||||
ports_data = load_yaml_with_comments(PORTS_FILE)
|
||||
assigned = {}
|
||||
for cat in args.ports:
|
||||
port = get_next_port(ports_yaml, cat)
|
||||
ports_yaml['ports']['localhost'].setdefault(cat, {})[app] = port
|
||||
assigned[cat] = port
|
||||
loc = ports_data['ports']['localhost'].setdefault(cat, {})
|
||||
if app in loc:
|
||||
print(f"→ Existing port for {cat} and {app}: {loc[app]}, skipping.")
|
||||
else:
|
||||
pnum = get_next_port(ports_data, cat)
|
||||
loc[app] = pnum
|
||||
assigned[cat] = pnum
|
||||
|
||||
if assigned:
|
||||
shutil.copy(PORTS_FILE, PORTS_FILE + '.bak')
|
||||
dump_yaml(ports_yaml, PORTS_FILE)
|
||||
print(f"→ Assigned ports {assigned} for {app} in {PORTS_FILE}")
|
||||
dump_yaml_with_comments(ports_data, PORTS_FILE)
|
||||
print(f"→ Assigned ports {assigned} in {PORTS_FILE}")
|
||||
else:
|
||||
print("→ No ports assigned (already existed)")
|
||||
print("→ No new ports assigned.")
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user