[Feat] Add support for Oslo logging configuration

- Adds Oslo logging libraries
- Enables logging configuration with a config file
- Enables debug logging with --trace flag
- Supports Docker logs
- Adds logging for tiller

armada/cli/apply.py

@@ -12,14 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import logging
-
 from cliff import command as cmd
 
 from armada.handlers.armada import Armada
 
-LOG = logging.getLogger(__name__)
-
 def applyCharts(args):
 
     armada = Armada(open(args.file).read(),
@@ -29,7 +25,8 @@ def applyCharts(args):
                     args.skip_pre_flight,
                     args.dry_run,
                     args.wait,
-                    args.timeout)
+                    args.timeout,
+                    args.debug_logging)
     armada.sync()
 
 class ApplyChartsCommand(cmd.Command):
@@ -41,8 +38,8 @@ class ApplyChartsCommand(cmd.Command):
                             default=False, help='Run charts with dry run')
         parser.add_argument('--skip-pre-flight', action='store_true',
                             default=False, help='Skip Pre Flight')
-        parser.add_argument('--debug', action='store',
-                            default=False, help='Run charts with dry run')
+        parser.add_argument('--debug-logging', action='store_true',
+                            default=False, help='Show debug logs')
         parser.add_argument('--disable-update-pre', action='store_true',
                             default=False, help='Disable pre upgrade actions')
         parser.add_argument('--disable-update-post', action='store_true',

armada/cli/tiller.py

@@ -12,14 +12,20 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import logging
-
 from cliff import command as cmd
 
 from armada.handlers.tiller import Tiller
 
+from oslo_config import cfg
+from oslo_log import log as logging
+
 LOG = logging.getLogger(__name__)
 
+CONF = cfg.CONF
+DOMAIN = "armada"
+
+logging.setup(CONF, DOMAIN)
+
 def tillerServer(args):
 
     tiller = Tiller()

armada/conf/__init__.py

@@ -11,11 +11,3 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
-from oslo_config import cfg
-
-from armada.conf import default
-
-CONF = cfg.CONF
-
-default.register_opts(CONF)

armada/conf/default.py

@@ -12,27 +12,161 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import os
+
 from oslo_config import cfg
 
 default_options = [
+    cfg.BoolOpt(
+        'debug',
+        default='false',
+        help='Print debugging output (set logging level to DEBUG instead of \
+        default INFO level).'),
+
+    cfg.ListOpt(
+        'default_log_levels',
+        default='root=INFO, cliff=INFO, stevedore=INFO, iso8601=INFO',
+        help='List of logger=LEVEL pairs.'),
+
+    cfg.BoolOpt(
+        'fatal_deprecations',
+        default='true',
+        help='Enables or disables fatal status of deprecations.'),
+
+    cfg.StrOpt(
+        'kubernetes_config_path',
+        default='/home/user/.kube/',
+        help='Path to Kubernetes configurations.'),
+
+    cfg.StrOpt(
+        'instance_format',
+        default='[instance: %(uuid)s] ',
+        help='The format for an instance that is passed \
+        with the log message.'),
+
+    cfg.StrOpt(
+        'instance_uuid_format',
+        default='[instance: %(uuid)s] ',
+        help='The format for an instance UUID that is passed \
+        with the log message.'),
+
+    cfg.StrOpt(
+        'log_config_append',
+        default=None,
+        help='The name of a logging configuration file.'),
+
+    cfg.StrOpt(
+        'log_date_format',
+        default='%Y-%m-%d %H:%M:%S',
+        help='Date format for log records.'),
+
+    cfg.StrOpt(
+        'log_dir',
+        default=None,
+        help='(Optional) The base directory used for \
+        relative log file paths.'),
+
+    cfg.StrOpt(
+        'log_file',
+        default=None,
+        help='(Optional) Path to Armada log file.'),
+
+    cfg.StrOpt(
+        'logging_context_format_string',
+        default='%(asctime)s.%(msecs)03d %(process)d %(levelname)s \
+        %(name)s [%(request_id)s %(user_identity)s] \
+        %(instance)s%(message)s',
+        help='Format for context logging.'),
+
+    cfg.StrOpt(
+        'logging_debug_format_suffix',
+        default='%(funcName)s %(pathname)s:%(lineno)d',
+        help='Format string to use for log messages \
+        when context is undefined.'),
+
+    cfg.StrOpt(
+        'logging_default_format_string',
+        default='%(asctime)s.%(msecs)03d %(process)d \
+        %(levelname)s %(name)s [-] %(instance)s%(message)s',
+        help='Format string to use for log \
+        messages when context is undefined.'),
+
+    cfg.StrOpt(
+        'logging_exception_prefix',
+        default='%(asctime)s.%(msecs)03d %(process)d \
+        ERROR %(name)s %(instance)s',
+        help='Prefix each line of \
+        exception output with this format.'),
+
+    cfg.StrOpt(
+        'logging_user_identity_format',
+        default='%(user)s %(tenant)s %(domain)s \
+        %(user_domain)s %(project_domain)s',
+        help='Defines the format string for \
+        %(user_identity)s that is used in logging_context_format_string.'),
+
+    cfg.BoolOpt(
+        'publish_errors',
+        default='true',
+        help='Enables or disables publication of error events.'),
+
+    cfg.IntOpt(
+        'rate_limit_burst',
+        default='0',
+        help='Maximum number of logged messages per rate_limit_interval.'),
+
+    cfg.StrOpt(
+        'rate_limit_except_level',
+        default='CRITICAL',
+        help='Log level name used by rate limiting: \
+        CRITICAL, ERROR, INFO, WARNING, DEBUG'),
+
+    cfg.IntOpt(
+        'rate_limit_interval',
+        default='0',
+        help='Maximum number of logged messages per rate_limit_interval.'),
+
     cfg.StrOpt(
         'ssh_key_path',
         default='/home/user/.ssh/',
         help='Path to SSH private key.'),
 
     cfg.StrOpt(
-        'logs',
-        default='/var/log/armada/armada.log',
-        help='Path to Armada logs.'),
+        'syslog_log_facility',
+        default='LOG_USER',
+        help='Syslog facility to receive log lines. \
+        This option is ignored if log_config_append is set.'),
 
-    cfg.StrOpt(
-        'kubernetes_config_path',
-        default='/home/user/.kube/',
-        help='Path to Kubernetes configurations.')
+    cfg.BoolOpt(
+        'use_journal',
+        default='false',
+        help='Enable journald for logging. (Must be a systemd environment)'),
+
+    cfg.BoolOpt(
+        'use_stderr',
+        default='true',
+        help='Log output to standard error.'),
+
+    cfg.BoolOpt(
+        'use_syslog',
+        default='true',
+        help='Log output to syslog.'),
+
+    cfg.BoolOpt(
+        'watch_log_file',
+        default='false',
+        help='Enables instantaneous recreation of a \
+        logging file if the file is removed.')
 ]
 
-def register_opts(conf):
-    conf.register_opts(default_options)
+def register_opts():
+    CONF = cfg.CONF
+    CONF.register_opts(default_options)
+
+    # Load config file if exists
+    default_config_file = 'etc/armada/armada.conf'
+    if (os.path.exists(default_config_file)):
+        CONF(['--config-file', default_config_file])
 
 def list_opts():
     return {'DEFAULT': default_options}

armada/handlers/armada.py

@@ -26,14 +26,12 @@ from ..utils import git
 from ..utils import lint
 
 LOG = logging.getLogger(__name__)
+
 CONF = cfg.CONF
 DOMAIN = "armada"
 
-logging.register_options(CONF)
 logging.setup(CONF, DOMAIN)
 
-LOG = logging.getLogger(__name__)
-
 class Armada(object):
     '''
     This is the main Armada class handling the Armada
@@ -47,7 +45,8 @@ class Armada(object):
                  skip_pre_flight=False,
                  dry_run=False,
                  wait=False,
-                 timeout=None):
+                 timeout=None,
+                 debug=False):
         '''
         Initialize the Armada Engine and establish
         a connection to Tiller
@@ -61,6 +60,11 @@ class Armada(object):
         self.timeout = timeout
         self.config = yaml.load(config)
         self.tiller = Tiller()
+        self.debug = debug
+
+        # Set debug value
+        CONF.set_default('debug', self.debug)
+        logging.setup(CONF, DOMAIN)
 
     def find_release_chart(self, known_releases, name):
         '''

armada/handlers/chartbuilder.py

@@ -14,7 +14,6 @@
 
 import os
 import yaml
-import logging
 
 from hapi.chart.template_pb2 import Template
 from hapi.chart.chart_pb2 import Chart
@@ -24,8 +23,16 @@ from supermutes.dot import dotify
 
 from ..utils.git import git_clone, source_cleanup
 
+from oslo_config import cfg
+from oslo_log import log as logging
+
 LOG = logging.getLogger(__name__)
 
+CONF = cfg.CONF
+DOMAIN = "armada"
+
+logging.setup(CONF, DOMAIN)
+
 class ChartBuilder(object):
     '''
     This class handles taking chart intentions as a paramter and

armada/handlers/k8s.py

@@ -14,10 +14,17 @@
 
 from kubernetes import client, config
 from kubernetes.client.rest import ApiException
-import logging
+
+from oslo_config import cfg
+from oslo_log import log as logging
 
 LOG = logging.getLogger(__name__)
 
+CONF = cfg.CONF
+DOMAIN = "armada"
+
+logging.setup(CONF, DOMAIN)
+
 class K8s(object):
     '''
     Object to obtain the local kube config file

armada/handlers/tiller.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import grpc
-import logging
 
 from hapi.services.tiller_pb2 import ReleaseServiceStub, ListReleasesRequest, \
     InstallReleaseRequest, UpdateReleaseRequest, UninstallReleaseRequest
@@ -22,6 +21,9 @@ from hapi.chart.config_pb2 import Config
 from k8s import K8s
 from ..utils.release import release_prefix
 
+from oslo_config import cfg
+from oslo_log import log as logging
+
 TILLER_PORT = 44134
 TILLER_VERSION = b'2.4.2'
 TILLER_TIMEOUT = 300
@@ -36,6 +38,11 @@ MAX_MESSAGE_LENGTH = 429496729
 
 LOG = logging.getLogger(__name__)
 
+CONF = cfg.CONF
+DOMAIN = "armada"
+
+logging.setup(CONF, DOMAIN)
+
 class Tiller(object):
     '''
     The Tiller class supports communication and requests to the Tiller Helm

armada/log.py

@@ -1,40 +0,0 @@
-# Copyright 2017 The Armada Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from oslo_config import cfg
-from oslo_log import log as logging
-
-CONF = cfg.CONF
-DOMAIN = "armada"
-
-def set_console_formatter(**formatter_kwargs):
-    formatter_kwargs.setdefault(
-        'fmt', '%(asctime)s %(name)-12s %(levelname)-8s %(message)s')
-    formatter_kwargs.setdefault('datefmt', '%m-%d %H:%M')
-
-    # Specify default log levels
-    custom_log_level_defaults = [
-        'root=INFO',
-        'cliff=INFO',
-        'stevedore=INFO',
-        'iso8601=INFO'
-    ]
-
-    logging.set_defaults(
-        default_log_levels=logging.get_default_log_levels() +
-        custom_log_level_defaults)
-
-    # Setup logging configuration
-    logging.register_options(CONF)
-    logging.setup(CONF, DOMAIN)

armada/shell.py

@@ -16,9 +16,9 @@ import sys
 
 from cliff import app
 from cliff import commandmanager as cm
+from conf import default
 
 import armada
-from armada import log
 
 class ArmadaApp(app.App):
     def __init__(self, **kwargs):
@@ -35,7 +35,7 @@ class ArmadaApp(app.App):
 
     def configure_logging(self):
         super(ArmadaApp, self).configure_logging()
-        log.set_console_formatter()
+        default.register_opts()
 
 def main(argv=None):
     if argv is None:

requirements.txt

@@ -3,6 +3,7 @@ grpcio==1.1.3
 grpcio-tools==1.1.3
 kubernetes==1.0.0
 oslo.log==3.28.0
+oslo.messaging==5.28.0
 protobuf==3.2.0
 PyYAML==3.12
 requests==2.17.3

server.py

@@ -43,8 +43,10 @@ class Tiller(object):
         message = "Tiller Server is {}"
         if tillerHandler().tiller_status():
             resp.data = json.dumps({'message': message.format('Active')})
+            LOG.info('Tiller Server is Active.')
         else:
             resp.data = json.dumps({'message': message.format('Not Present')})
+            LOG.info('Tiller Server is Not Present.')
 
         resp.content_type = 'application/json'
         resp.status = HTTP_200