diff options
Diffstat (limited to 'roles/lib_openshift_api/library/oc_secret.py')
| -rw-r--r-- | roles/lib_openshift_api/library/oc_secret.py | 667 |
1 files changed, 667 insertions, 0 deletions
diff --git a/roles/lib_openshift_api/library/oc_secret.py b/roles/lib_openshift_api/library/oc_secret.py new file mode 100644 index 000000000..8e5800e52 --- /dev/null +++ b/roles/lib_openshift_api/library/oc_secret.py @@ -0,0 +1,667 @@ +#!/usr/bin/env python +# ___ ___ _ _ ___ ___ _ _____ ___ ___ +# / __| __| \| | __| _ \ /_\_ _| __| \ +# | (_ | _|| .` | _|| / / _ \| | | _|| |) | +# \___|___|_|\_|___|_|_\/_/_\_\_|_|___|___/_ _____ +# | \ / _ \ | \| |/ _ \_ _| | __| \_ _|_ _| +# | |) | (_) | | .` | (_) || | | _|| |) | | | | +# |___/ \___/ |_|\_|\___/ |_| |___|___/___| |_| +''' + OpenShiftCLI class that wraps the oc commands in a subprocess +''' + +import atexit +import json +import os +import shutil +import subprocess +import re + +import yaml +# This is here because of a bug that causes yaml +# to incorrectly handle timezone info on timestamps +def timestamp_constructor(_, node): + '''return timestamps as strings''' + return str(node.value) +yaml.add_constructor(u'tag:yaml.org,2002:timestamp', timestamp_constructor) + +# pylint: disable=too-few-public-methods +class OpenShiftCLI(object): + ''' Class to wrap the oc command line tools ''' + def __init__(self, + namespace, + kubeconfig='/etc/origin/master/admin.kubeconfig', + verbose=False): + ''' Constructor for OpenshiftOC ''' + self.namespace = namespace + self.verbose = verbose + self.kubeconfig = kubeconfig + + # Pylint allows only 5 arguments to be passed. + # pylint: disable=too-many-arguments + def _replace_content(self, resource, rname, content, force=False): + ''' replace the current object with the content ''' + res = self._get(resource, rname) + if not res['results']: + return res + + fname = '/tmp/%s' % rname + yed = Yedit(fname, res['results'][0]) + changes = [] + for key, value in content.items(): + changes.append(yed.put(key, value)) + + if any([not change[0] for change in changes]): + return {'returncode': 0, 'updated': False} + + yed.write() + + atexit.register(Utils.cleanup, [fname]) + + return self._replace(fname, force) + + def _replace(self, fname, force=False): + '''return all pods ''' + cmd = ['-n', self.namespace, 'replace', '-f', fname] + if force: + cmd.append('--force') + return self.oc_cmd(cmd) + + def _create(self, fname): + '''return all pods ''' + return self.oc_cmd(['create', '-f', fname, '-n', self.namespace]) + + def _delete(self, resource, rname): + '''return all pods ''' + return self.oc_cmd(['delete', resource, rname, '-n', self.namespace]) + + def _get(self, resource, rname=None): + '''return a secret by name ''' + cmd = ['get', resource, '-o', 'json', '-n', self.namespace] + if rname: + cmd.append(rname) + + rval = self.oc_cmd(cmd, output=True) + + # Ensure results are retuned in an array + if rval.has_key('items'): + rval['results'] = rval['items'] + elif not isinstance(rval['results'], list): + rval['results'] = [rval['results']] + + return rval + + def oc_cmd(self, cmd, output=False): + '''Base command for oc ''' + #cmds = ['/usr/bin/oc', '--config', self.kubeconfig] + cmds = ['/usr/bin/oc'] + cmds.extend(cmd) + + rval = {} + results = '' + err = None + + if self.verbose: + print ' '.join(cmds) + + proc = subprocess.Popen(cmds, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + env={'KUBECONFIG': self.kubeconfig}) + + proc.wait() + stdout = proc.stdout.read() + stderr = proc.stderr.read() + + rval = {"returncode": proc.returncode, + "results": results, + } + + if proc.returncode == 0: + if output: + try: + rval['results'] = json.loads(stdout) + except ValueError as err: + if "No JSON object could be decoded" in err.message: + err = err.message + + if self.verbose: + print stdout + print stderr + print + + if err: + rval.update({"err": err, + "stderr": stderr, + "stdout": stdout, + "cmd": cmds + }) + + else: + rval.update({"stderr": stderr, + "stdout": stdout, + "results": {}, + }) + + return rval + +class Utils(object): + ''' utilities for openshiftcli modules ''' + @staticmethod + def create_file(rname, data, ftype=None): + ''' create a file in tmp with name and contents''' + path = os.path.join('/tmp', rname) + with open(path, 'w') as fds: + if ftype == 'yaml': + fds.write(yaml.safe_dump(data, default_flow_style=False)) + + elif ftype == 'json': + fds.write(json.dumps(data)) + else: + fds.write(data) + + # Register cleanup when module is done + atexit.register(Utils.cleanup, [path]) + return path + + @staticmethod + def create_files_from_contents(data): + '''Turn an array of dict: filename, content into a files array''' + files = [] + + for sfile in data: + path = Utils.create_file(sfile['path'], sfile['content']) + files.append(path) + + return files + + @staticmethod + def cleanup(files): + '''Clean up on exit ''' + for sfile in files: + if os.path.exists(sfile): + if os.path.isdir(sfile): + shutil.rmtree(sfile) + elif os.path.isfile(sfile): + os.remove(sfile) + + + @staticmethod + def exists(results, _name): + ''' Check to see if the results include the name ''' + if not results: + return False + + + if Utils.find_result(results, _name): + return True + + return False + + @staticmethod + def find_result(results, _name): + ''' Find the specified result by name''' + rval = None + for result in results: + if result.has_key('metadata') and result['metadata']['name'] == _name: + rval = result + break + + return rval + + @staticmethod + def get_resource_file(sfile, sfile_type='yaml'): + ''' return the service file ''' + contents = None + with open(sfile) as sfd: + contents = sfd.read() + + if sfile_type == 'yaml': + contents = yaml.safe_load(contents) + elif sfile_type == 'json': + contents = json.loads(contents) + + return contents + + # Disabling too-many-branches. This is a yaml dictionary comparison function + # pylint: disable=too-many-branches,too-many-return-statements + @staticmethod + def check_def_equal(user_def, result_def, debug=False): + ''' Given a user defined definition, compare it with the results given back by our query. ''' + + # Currently these values are autogenerated and we do not need to check them + skip = ['metadata', 'status'] + + for key, value in result_def.items(): + if key in skip: + continue + + # Both are lists + if isinstance(value, list): + if not isinstance(user_def[key], list): + return False + + # lists should be identical + if value != user_def[key]: + return False + + # recurse on a dictionary + elif isinstance(value, dict): + if not isinstance(user_def[key], dict): + if debug: + print "dict returned false not instance of dict" + return False + + # before passing ensure keys match + api_values = set(value.keys()) - set(skip) + user_values = set(user_def[key].keys()) - set(skip) + if api_values != user_values: + if debug: + print api_values + print user_values + print "keys are not equal in dict" + return False + + result = Utils.check_def_equal(user_def[key], value, debug=debug) + if not result: + if debug: + print "dict returned false" + return False + + # Verify each key, value pair is the same + else: + if not user_def.has_key(key) or value != user_def[key]: + if debug: + print "value not equal; user_def does not have key" + print value + print user_def[key] + return False + + return True + +class YeditException(Exception): + ''' Exception class for Yedit ''' + pass + +class Yedit(object): + ''' Class to modify yaml files ''' + re_valid_key = r"(((\[-?\d+\])|(\w+)).?)+$" + re_key = r"(?:\[(-?\d+)\])|(\w+)" + + def __init__(self, filename=None, content=None, content_type='yaml'): + self.content = content + self.filename = filename + self.__yaml_dict = content + self.content_type = content_type + if self.filename and not self.content: + self.load(content_type=self.content_type) + + @property + def yaml_dict(self): + ''' getter method for yaml_dict ''' + return self.__yaml_dict + + @yaml_dict.setter + def yaml_dict(self, value): + ''' setter method for yaml_dict ''' + self.__yaml_dict = value + + @staticmethod + def remove_entry(data, key): + ''' remove data at location key ''' + if not (key and re.match(Yedit.re_valid_key, key) and isinstance(data, (list, dict))): + return None + + key_indexes = re.findall(Yedit.re_key, key) + for arr_ind, dict_key in key_indexes[:-1]: + if dict_key and isinstance(data, dict): + data = data.get(dict_key, None) + elif arr_ind and isinstance(data, list) and int(arr_ind) <= len(data) - 1: + data = data[int(arr_ind)] + else: + return None + + # process last index for remove + # expected list entry + if key_indexes[-1][0]: + if isinstance(data, list) and int(key_indexes[-1][0]) <= len(data) - 1: + del data[int(key_indexes[-1][0])] + + # expected dict entry + elif key_indexes[-1][1]: + if isinstance(data, dict): + del data[key_indexes[-1][1]] + + @staticmethod + def add_entry(data, key, item=None): + ''' Get an item from a dictionary with key notation a.b.c + d = {'a': {'b': 'c'}}} + key = a.b + return c + ''' + if not (key and re.match(Yedit.re_valid_key, key) and isinstance(data, (list, dict))): + return None + + curr_data = data + + key_indexes = re.findall(Yedit.re_key, key) + for arr_ind, dict_key in key_indexes[:-1]: + if dict_key: + if isinstance(data, dict) and data.has_key(dict_key): + data = data[dict_key] + continue + + data[dict_key] = {} + data = data[dict_key] + + elif arr_ind and isinstance(data, list) and int(arr_ind) <= len(data) - 1: + data = data[int(arr_ind)] + else: + return None + + # process last index for add + # expected list entry + if key_indexes[-1][0] and isinstance(data, list) and int(key_indexes[-1][0]) <= len(data) - 1: + data[int(key_indexes[-1][0])] = item + + # expected dict entry + elif key_indexes[-1][1] and isinstance(data, dict): + data[key_indexes[-1][1]] = item + + return curr_data + + @staticmethod + def get_entry(data, key): + ''' Get an item from a dictionary with key notation a.b.c + d = {'a': {'b': 'c'}}} + key = a.b + return c + ''' + if not (key and re.match(Yedit.re_valid_key, key) and isinstance(data, (list, dict))): + return None + + key_indexes = re.findall(Yedit.re_key, key) + for arr_ind, dict_key in key_indexes: + if dict_key and isinstance(data, dict): + data = data.get(dict_key, None) + elif arr_ind and isinstance(data, list) and int(arr_ind) <= len(data) - 1: + data = data[int(arr_ind)] + else: + return None + + return data + + def write(self): + ''' write to file ''' + if not self.filename: + raise YeditException('Please specify a filename.') + + with open(self.filename, 'w') as yfd: + yfd.write(yaml.safe_dump(self.yaml_dict, default_flow_style=False)) + + def read(self): + ''' write to file ''' + # check if it exists + if not self.exists(): + return None + + contents = None + with open(self.filename) as yfd: + contents = yfd.read() + + return contents + + def exists(self): + ''' return whether file exists ''' + if os.path.exists(self.filename): + return True + + return False + + def load(self, content_type='yaml'): + ''' return yaml file ''' + contents = self.read() + + if not contents: + return None + + # check if it is yaml + try: + if content_type == 'yaml': + self.yaml_dict = yaml.load(contents) + elif content_type == 'json': + self.yaml_dict = json.loads(contents) + except yaml.YAMLError as _: + # Error loading yaml or json + return None + + return self.yaml_dict + + def get(self, key): + ''' get a specified key''' + try: + entry = Yedit.get_entry(self.yaml_dict, key) + except KeyError as _: + entry = None + + return entry + + def delete(self, key): + ''' put key, value into a yaml file ''' + try: + entry = Yedit.get_entry(self.yaml_dict, key) + except KeyError as _: + entry = None + if not entry: + return (False, self.yaml_dict) + + Yedit.remove_entry(self.yaml_dict, key) + return (True, self.yaml_dict) + + def put(self, key, value): + ''' put key, value into a yaml file ''' + try: + entry = Yedit.get_entry(self.yaml_dict, key) + except KeyError as _: + entry = None + + if entry == value: + return (False, self.yaml_dict) + + Yedit.add_entry(self.yaml_dict, key, value) + return (True, self.yaml_dict) + + def create(self, key, value): + ''' create the file ''' + if not self.exists(): + self.yaml_dict = {key: value} + return (True, self.yaml_dict) + + return (False, self.yaml_dict) + +class Secret(OpenShiftCLI): + ''' Class to wrap the oc command line tools + ''' + def __init__(self, + namespace, + secret_name=None, + kubeconfig='/etc/origin/master/admin.kubeconfig', + verbose=False): + ''' Constructor for OpenshiftOC ''' + super(Secret, self).__init__(namespace, kubeconfig) + self.namespace = namespace + self.name = secret_name + self.kubeconfig = kubeconfig + self.verbose = verbose + + def get(self): + '''return a secret by name ''' + return self._get('secrets', self.name) + + def delete(self): + '''delete a secret by name''' + return self._delete('secrets', self.name) + + def create(self, files=None, contents=None): + '''Create a secret ''' + if not files: + files = Utils.create_files_from_contents(contents) + + secrets = ["%s=%s" % (os.path.basename(sfile), sfile) for sfile in files] + cmd = ['-n%s' % self.namespace, 'secrets', 'new', self.name] + cmd.extend(secrets) + + return self.oc_cmd(cmd) + + def update(self, files, force=False): + '''run update secret + + This receives a list of file names and converts it into a secret. + The secret is then written to disk and passed into the `oc replace` command. + ''' + secret = self.prep_secret(files) + if secret['returncode'] != 0: + return secret + + sfile_path = '/tmp/%s' % self.name + with open(sfile_path, 'w') as sfd: + sfd.write(json.dumps(secret['results'])) + + atexit.register(Utils.cleanup, [sfile_path]) + + return self._replace(sfile_path, force=force) + + def prep_secret(self, files=None, contents=None): + ''' return what the secret would look like if created + This is accomplished by passing -ojson. This will most likely change in the future + ''' + if not files: + files = Utils.create_files_from_contents(contents) + + secrets = ["%s=%s" % (os.path.basename(sfile), sfile) for sfile in files] + cmd = ['-ojson', '-n%s' % self.namespace, 'secrets', 'new', self.name] + cmd.extend(secrets) + + return self.oc_cmd(cmd, output=True) + + + +# pylint: disable=too-many-branches +def main(): + ''' + ansible oc module for secrets + ''' + + module = AnsibleModule( + argument_spec=dict( + kubeconfig=dict(default='/etc/origin/master/admin.kubeconfig', type='str'), + state=dict(default='present', type='str', + choices=['present', 'absent', 'list']), + debug=dict(default=False, type='bool'), + namespace=dict(default='default', type='str'), + name=dict(default=None, type='str'), + files=dict(default=None, type='list'), + delete_after=dict(default=False, type='bool'), + contents=dict(default=None, type='list'), + force=dict(default=False, type='bool'), + ), + mutually_exclusive=[["contents", "files"]], + + supports_check_mode=True, + ) + occmd = Secret(module.params['namespace'], + module.params['name'], + kubeconfig=module.params['kubeconfig'], + verbose=module.params['debug']) + + state = module.params['state'] + + api_rval = occmd.get() + + ##### + # Get + ##### + if state == 'list': + module.exit_json(changed=False, results=api_rval['results'], state="list") + + if not module.params['name']: + module.fail_json(msg='Please specify a name when state is absent|present.') + ######## + # Delete + ######## + if state == 'absent': + if not Utils.exists(api_rval['results'], module.params['name']): + module.exit_json(changed=False, state="absent") + + if module.check_mode: + module.exit_json(change=False, msg='Would have performed a delete.') + + api_rval = occmd.delete() + module.exit_json(changed=True, results=api_rval, state="absent") + + + if state == 'present': + if module.params['files']: + files = module.params['files'] + elif module.params['contents']: + files = Utils.create_files_from_contents(module.params['contents']) + else: + module.fail_json(msg='Either specify files or contents.') + + ######## + # Create + ######## + if not Utils.exists(api_rval['results'], module.params['name']): + + if module.check_mode: + module.exit_json(change=False, msg='Would have performed a create.') + + api_rval = occmd.create(module.params['files'], module.params['contents']) + + # Remove files + if files and module.params['delete_after']: + Utils.cleanup(files) + + module.exit_json(changed=True, results=api_rval, state="present") + + ######## + # Update + ######## + secret = occmd.prep_secret(module.params['files'], module.params['contents']) + + if secret['returncode'] != 0: + module.fail_json(msg=secret) + + if Utils.check_def_equal(secret['results'], api_rval['results'][0]): + + # Remove files + if files and module.params['delete_after']: + Utils.cleanup(files) + + module.exit_json(changed=False, results=secret['results'], state="present") + + if module.check_mode: + module.exit_json(change=False, msg='Would have performed an update.') + + api_rval = occmd.update(files, force=module.params['force']) + + # Remove files + if secret and module.params['delete_after']: + Utils.cleanup(files) + + if api_rval['returncode'] != 0: + module.fail_json(msg=api_rval) + + + module.exit_json(changed=True, results=api_rval, state="present") + + module.exit_json(failed=True, + changed=False, + results='Unknown state passed. %s' % state, + state="unknown") + +# pylint: disable=redefined-builtin, unused-wildcard-import, wildcard-import, locally-disabled +# import module snippets. This are required +from ansible.module_utils.basic import * + +main() |