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migrate-ssh-keys.py
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migrate-ssh-keys.py

#!/usr/bin/env python3
# -------------------------------------------------------------
# rOPS — migrate SSH keys from file to Salt state
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Project: Nasqueron
# Created: 2017-11-09
# Description: Read a dictionary, and for each key, find in
# a specified folder a data file. Add data from
# this file to the dictionary. Output in YAML.
# License: BSD-2-Clause
# -------------------------------------------------------------
# -------------------------------------------------------------
# Table of contents
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#
# :: Configuration
# :: YAML style
# :: Update code
# :: Run task
#
# -------------------------------------------------------------
import os
import yaml
# -------------------------------------------------------------
# Configuration
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Where is located the dictionary to update?
state_file = "pillar/core/users.sls"
state_key = "shellusers"
# Where are located the data fileS?
data_path = "roles/shellserver/users/files/ssh_keys/"
# What property should get the data and be added if missing in the dict?
state_data_property = "ssh_keys"
# -------------------------------------------------------------
# YAML style
#
# Allows indented lists in dump
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
class SaltStyleDumper(yaml.Dumper):
def increase_indent(self, flow=False, indentless=False):
return super(SaltStyleDumper, self).increase_indent(flow, False)
# -------------------------------------------------------------
# Update code
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
def do_update():
state = read_state()
update_state(state)
print(dump_state(state))
def read_state():
fd = open(state_file, "r")
states = yaml.safe_load(fd.read())
fd.close()
return states[state_key]
def update_state(state):
for key in state:
if state_data_property not in state[key]:
state[key][state_data_property] = read_data(key)
def read_data(key):
path = data_path + key
if not os.path.exists(path):
return []
return [line.strip() for line in open(path, "r") if is_value_line(line)]
def is_value_line(line):
if line.startswith("#"):
return False
if line.strip() == "":
return False
return True
def dump_state(state):
return yaml.dump(
{state_key: state}, default_flow_style=False, Dumper=SaltStyleDumper, width=1000
)
# -------------------------------------------------------------
# Run task
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
do_update()

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