diff options
Diffstat (limited to 'roles/lib_openshift_api/build/src/base.py')
| -rw-r--r-- | roles/lib_openshift_api/build/src/base.py | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/roles/lib_openshift_api/build/src/base.py b/roles/lib_openshift_api/build/src/base.py new file mode 100644 index 000000000..31c102e5d --- /dev/null +++ b/roles/lib_openshift_api/build/src/base.py @@ -0,0 +1,242 @@ +# pylint: skip-file +''' + OpenShiftCLI class that wraps the oc commands in a subprocess +''' + +import atexit +import json +import os +import shutil +import subprocess +import yaml + +# 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]) + for key, value in content.items(): + yed.put(key, value) + + 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) + + results = '' + + if self.verbose: + print ' '.join(cmds) + + proc = subprocess.Popen(cmds, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + env={'KUBECONFIG': self.kubeconfig}) + proc.wait() + if proc.returncode == 0: + if output: + try: + results = json.loads(proc.stdout.read()) + except ValueError as err: + if "No JSON object could be decoded" in err.message: + results = err.message + + if self.verbose: + print proc.stderr.read() + print results + print + + return {"returncode": proc.returncode, "results": results} + + return {"returncode": proc.returncode, + "stderr": proc.stderr.read(), + "stdout": proc.stdout.read(), + "results": {} + } + +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.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 |