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# -*- coding: utf-8 -*- |
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# |
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# Copyright (c) 2014-2015 Online SAS and Contributors. All Rights Reserved. |
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# Edouard Bonlieu <[email protected]> |
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# Julien Castets <[email protected]> |
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# Manfred Touron <[email protected]> |
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# Kevin Deldycke <[email protected]> |
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# |
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# Licensed under the BSD 2-Clause License (the "License"); you may not use this |
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# file except in compliance with the License. You may obtain a copy of the |
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# License at http://opensource.org/licenses/BSD-2-Clause |
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try: |
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import httplib |
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except ImportError: # Python3 |
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import http.client as httplib |
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import logging |
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import shutil |
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import subprocess |
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import socket |
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import os |
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import yaml |
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from juju_scaleway.constraints import SERIES_MAP |
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logger = logging.getLogger("juju.scaleway") |
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class Environment(object): |
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def __init__(self, config): |
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self.config = config |
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def _run(self, command, env=None, capture_err=False): |
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if env is None: |
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env = dict(os.environ) |
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env["JUJU_ENV"] = self.config.get_env_name() |
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args = ['juju'] |
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args.extend(command) |
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logger.debug("Running juju command: %s", " ".join(args)) |
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try: |
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if capture_err: |
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return subprocess.check_call( |
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args, env=env, stderr=subprocess.STDOUT) |
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return subprocess.check_output( |
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args, env=env, stderr=subprocess.STDOUT) |
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except subprocess.CalledProcessError as exc: |
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logger.error( |
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"Failed to run command %s\n%s", |
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' '.join(args), exc.output |
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) |
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raise |
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def status(self): |
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return yaml.safe_load(self._run(['status'])) |
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def is_running(self): |
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"""Try to connect the api server websocket to see if env is running. |
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""" |
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name = self.config.get_env_name() |
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jenv = os.path.join( |
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self.config.juju_home, "environments", "%s.jenv" % name) |
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if not os.path.exists(jenv): |
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return False |
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with open(jenv) as handle: |
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data = yaml.safe_load(handle.read()) |
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if not data: |
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return False |
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conf = data.get('bootstrap-config') |
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if not conf['type'] in ('manual', 'null'): |
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return False |
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conn = httplib.HTTPSConnection( |
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conf['bootstrap-host'], port=17070, timeout=1.2) |
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try: |
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conn.request("GET", "/") |
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return True |
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except socket.error: |
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return False |
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def add_machine(self, location, key=None, debug=False): |
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ops = ['add-machine', location] |
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if key: |
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ops.extend(['--ssh-key', key]) |
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if debug: |
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ops.append('--debug') |
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return self._run(ops, capture_err=debug) |
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def terminate_machines(self, machines): |
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cmd = ['terminate-machine', '--force'] |
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cmd.extend(machines) |
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return self._run(cmd) |
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def destroy_environment(self): |
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cmd = [ |
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'destroy-environment', "-y", self.config.get_env_name()] |
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return self._run(cmd) |
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def destroy_environment_jenv(self): |
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"""Force remove client cache of environment by deleting jenv. |
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Specifically this is for when we force/fast destroy an environment |
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by deleting all the underlying iaas resources. Juju cli with --force |
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will work, but will wait for a timeout to connect to the state server |
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before doing the same. |
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""" |
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env_name = self.config.get_env_name() |
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jenv_path = os.path.join( |
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self.config.juju_home, "environments", "%s.jenv" % env_name) |
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if os.path.exists(jenv_path): |
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os.remove(jenv_path) |
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def bootstrap(self): |
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return self._run(['bootstrap', '-v']) |
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def bootstrap_jenv(self, host): |
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"""Bootstrap an environment in a sandbox. |
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Manual provider config keeps transient state in the form of |
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bootstrap-host for its config. |
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A temporary JUJU_HOME is used to modify environments.yaml |
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""" |
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env_name = self.config.get_env_name() |
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# Prep a new juju home |
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boot_home = os.path.join( |
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self.config.juju_home, "boot-%s" % env_name) |
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if not os.path.exists(boot_home): |
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os.makedirs(os.path.join(boot_home, 'environments')) |
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# Check that this installation has been used before. |
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jenv_dir = os.path.join(self.config.juju_home, 'environments') |
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if not os.path.exists(jenv_dir): |
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os.mkdir(jenv_dir) |
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ssh_key_dir = os.path.join(self.config.juju_home, 'ssh') |
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# If no keys, create juju ssh keys via side effect. |
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if not os.path.exists(ssh_key_dir): |
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self._run(["switch"]) |
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# Use existing juju ssh keys when bootstrapping |
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shutil.copytree( |
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ssh_key_dir, |
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os.path.join(boot_home, 'ssh')) |
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# Updated env config with the bootstrap host. |
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with open(self.config.get_env_conf()) as handle: |
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data = yaml.safe_load(handle.read()) |
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env_conf = data['environments'].get(env_name) |
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env_conf['bootstrap-host'] = host |
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with open(os.path.join(boot_home, 'environments.yaml'), 'w') as handle: |
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handle.write(yaml.safe_dump({ |
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'environments': {env_name: env_conf} |
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})) |
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# Change JUJU_ENV |
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env = dict(os.environ) |
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env['JUJU_HOME'] = boot_home |
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env['JUJU_LOGGING'] = "<root>=DEBUG" |
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cmd = ['bootstrap', '--debug'] |
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if self.config.upload_tools: |
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cmd.append("--upload-tools") |
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cmd.append('--series') |
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cmd.append("%s" % (",".join(sorted(SERIES_MAP.values())))) |
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capture_err = self.config.verbose and True or False |
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try: |
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self._run(cmd, env=env, capture_err=capture_err) |
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# Copy over the jenv |
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shutil.copy( |
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os.path.join( |
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boot_home, "environments", "%s.jenv" % env_name), |
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os.path.join( |
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self.config.juju_home, |
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"environments", "%s.jenv" % env_name)) |
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finally: |
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shutil.rmtree(boot_home) |
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scaleway /
juju-scaleway
