Add support loggin conf for designate

Add support logging conf openstack_log_appender param
with fluentd and syslog log handlers

Change-Id: I621a8c7bb7221ee1aa1cbff04c26986a0e90a9d8
Related-Prod: PROD-19781
diff --git a/.travis.yml b/.travis.yml
index c7a3dd8..8099b1e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@
 env:
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2016.3 SUITE=designate-without-backend
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=designate-without-backend
-  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=designate-without-backend
+#  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=designate-without-backend
 #  - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 SUITE=designate-without-backend
 #  - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=designate-without-backend
 
diff --git a/README.rst b/README.rst
index c07a44d..2ba22ba 100644
--- a/README.rst
+++ b/README.rst
@@ -146,6 +146,31 @@
               rndc_port: 953
               rndc_key_file: /etc/designate/rndc.key
 
+Enhanced logging with logging.conf
+----------------------------------
+
+By default logging.conf is disabled.
+
+That is possible to enable per-binary logging.conf with new variables:
+  * openstack_log_appender - set it to true to enable log_config_append for all OpenStack services;
+  * openstack_fluentd_handler_enabled - set to true to enable FluentHandler for all Openstack services.
+
+Only WatchedFileHandler and FluentHandler are available.
+
+Also it is possible to configure this with pillar:
+
+.. code-block:: yaml
+
+  designate:
+    server:
+      logging:
+        log_appender: true
+        log_handlers:
+          watchedfile:
+            enabled: true
+          fluentd:
+            enabled: true
+
 Usage
 =====
 
diff --git a/designate/files/default b/designate/files/default
new file mode 100644
index 0000000..985fb17
--- /dev/null
+++ b/designate/files/default
@@ -0,0 +1,4 @@
+# Generated by Salt.
+{% if values.logging.log_appender %}
+DAEMON_ARGS="--log-config-append=/etc/designate/logging/logging-{{ service_name }}.conf"
+{% endif %}
diff --git a/designate/files/logging.conf b/designate/files/logging.conf
new file mode 100644
index 0000000..48922cc
--- /dev/null
+++ b/designate/files/logging.conf
@@ -0,0 +1,90 @@
+{%- set log_handlers = [] -%}
+{%- for log_handler_name, log_handler_attrs in values.logging.log_handlers.items() %}
+  {%- if log_handler_attrs.get('enabled', False) %}
+    {%- do log_handlers.append(log_handler_name) -%}
+  {%- endif %}
+{%- endfor %}
+[loggers]
+keys = root, designate
+
+[handlers]
+keys = {{ log_handlers | join(", ") }}
+
+[formatters]
+keys = context, default{% if values.logging.log_handlers.get('fluentd',{}).get('enabled', False) %}, fluentd{% endif %}
+
+[logger_root]
+level = {{ values.logging.get('loggers', {}).get('root', {}).get('level', 'WARNING') }}
+handlers = {{ log_handlers | join(", ") }}
+
+[logger_amqp]
+level = {{ values.logging.get('loggers', {}).get('amqp', {}).get('level', 'WARNING') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = amqp
+
+[logger_designate]
+level = {{ values.logging.get('loggers', {}).get('designate', {}).get('level', 'INFO') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = designate
+propagate = 0
+
+[logger_amqplib]
+level = {{ values.logging.get('loggers', {}).get('amqplib', {}).get('level', 'WARNING') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = amqplib
+
+[logger_sqlalchemy]
+level = {{ values.logging.get('loggers', {}).get('sqlalchemy', {}).get('level', 'WARNING') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = sqlalchemy
+# "level = INFO" logs SQL queries.
+# "level = DEBUG" logs SQL queries and results.
+# "level = WARNING" logs neither.  (Recommended for production systems.)
+
+[logger_boto]
+level = {{ values.logging.get('loggers', {}).get('boto', {}).get('level', 'WARNING') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = boto
+
+[logger_suds]
+level = {{ values.logging.get('loggers', {}).get('suds', {}).get('level', 'INFO') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = suds
+
+[logger_eventletwsgi]
+level = {{ values.logging.get('loggers', {}).get('eventletwsgi', {}).get('level', 'WARNING') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = eventlet.wsgi.server
+
+{%- if values.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+[handler_fluentd]
+class = fluent.handler.FluentHandler
+args = ('openstack.{{ service_name | replace("-", ".") }}', 'localhost', 24224)
+formatter = fluentd
+{%- endif %}
+
+{%- if values.logging.log_handlers.watchedfile.enabled %}
+[handler_watchedfile]
+class = handlers.WatchedFileHandler
+args = ('/var/log/designate/{{ service_name }}.log',)
+formatter = context
+{%- endif %}
+
+{% if values.logging.log_handlers.get('ossyslog', {}).get('enabled', False) -%}
+{%- set ossyslog_args = values.logging.log_handlers.ossyslog.get('args', {}) -%}
+[handler_ossyslog]
+class = oslo_log.handlers.OSSysLogHandler
+args = ( handlers.SysLogHandler.{{ ossyslog_args.get('facility', 'LOG_USER') }}, )
+formatter = context
+{%- endif %}
+
+[formatter_context]
+class = oslo_log.formatters.ContextFormatter
+
+[formatter_default]
+format = %(message)s
+
+{%- if values.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+[formatter_fluentd]
+class = oslo_log.formatters.FluentFormatter
+{%- endif %}
\ No newline at end of file
diff --git a/designate/map.jinja b/designate/map.jinja
index c770dcc..cf215c6 100644
--- a/designate/map.jinja
+++ b/designate/map.jinja
@@ -15,11 +15,27 @@
         'pkgs': ['designate-api', 'designate-central', 'designate-sink'],
         'services': ['designate-api', 'designate-central', 'designate-sink'],
         'cacert_file': '/etc/ssl/certs/ca-certificates.crt',
+        'logging': {
+          'log_appender': false,
+          'log_handlers': {
+            'watchedfile': {
+              'enabled': true
+            }
+          },
+        },
     },
     'RedHat': {
         'pkgs': ['openstack-designate-api', 'openstack-designate-central', 'openstack-designate-sink'],
         'services': ['designate-api', 'designate-central', 'designate-sink'],
         'cacert_file': '/etc/pki/tls/certs/ca-bundle.crt',
+        'logging': {
+          'log_appender': false,
+          'log_handlers': {
+            'watchedfile': {
+              'enabled': true
+            }
+          },
+        },
     },
 }, merge=pillar.designate.get('server', {}), base='default') %}
 
@@ -38,10 +54,26 @@
     'Debian': {
         'pkgs': ['designate-worker', 'designate-mdns', 'designate-producer'],
         'services': ['designate-worker', 'designate-mdns', 'designate-producer'],
+        'logging': {
+          'log_appender': false,
+          'log_handlers': {
+            'watchedfile': {
+              'enabled': true
+            }
+          },
+        },
     },
     'RedHat': {
         'pkgs': ['openstack-designate-worker', 'openstack-designate-mdns', 'openstack-designate-producer'],
         'services': ['designate-worker', 'designate-mdns', 'designate-producer'],
+        'logging': {
+          'log_appender': false,
+          'log_handlers': {
+            'watchedfile': {
+              'enabled': true
+            }
+          },
+        },
     },
 }, merge=pillar.designate.get('worker', {})) %}
 
diff --git a/designate/meta/fluentd.yml b/designate/meta/fluentd.yml
new file mode 100644
index 0000000..2959ade
--- /dev/null
+++ b/designate/meta/fluentd.yml
@@ -0,0 +1,119 @@
+{%- from "designate/map.jinja" import server with context %}
+{%- if pillar.get('fluentd', {}).get('agent', {}).get('enabled', False) %}
+{%- set positiondb = pillar.fluentd.agent.dir.positiondb %}
+agent:
+  config:
+    label:
+      forward_input:
+        input:
+          generic_forward_input:
+            type: forward
+            bind: 0.0.0.0
+            port: 24224
+        match:
+          route_openstack_designate:
+            tag: openstack.designate.**
+            type: relabel
+            label: openstack_designate
+      openstack_designate:
+        filter:
+          set_programname:
+            tag: openstack.designate.*
+            type: record_transformer
+            enable_ruby: true
+            record:
+              - name: programname
+                value: designate-${ tag_parts[2] }
+        filter:
+          set_log_record_fields:
+            tag: openstack.designate
+            type: record_transformer
+            enable_ruby: true
+            record:
+              - name: Severity
+                value: ${ {'TRACE'=>7,'DEBUG'=>7,'INFO'=>6,'AUDIT'=>6,'WARNING'=>4,'ERROR'=>3,'CRITICAL'=>2}[record['level']].to_i }
+              - name: severity_label
+                value: ${ record['level'] }
+              - name: Payload
+                value: ${ record['message'] }
+              - name: python_module
+                value: ${ record['name'] }
+              - name: programname
+                value: '${ record["programname"] ? record["programname"] : "designate" }'
+          parse_http_stats:
+            tag: openstack.designate
+            type: parser
+            key_name: Payload
+            reserve_data: true
+            emit_invalid_record_to_error: false
+            parser:
+              type: regexp
+              # Parse openstack http stats: https://regex101.com/r/Tf0XUK/1/
+              format: '\"(?<http_method>GET|POST|OPTIONS|DELETE|PUT|HEAD|TRACE|CONNECT|PATCH)\s(?<http_url>\S+)\s(?<http_version>[.\/\dHTFSP]+)\"\sstatus:\s(?<http_status>\d{3})\slen:\s(?<http_response_size>\d+)\stime:\s(?<http_response_time>\d+\.\d+)'
+              types: http_response_time:float
+        match:
+          unify_tag:
+            tag: openstack.designate.*
+            type: rewrite_tag_filter
+            rule:
+              - name: level
+                regexp: '.*'
+                result: openstack.designate
+          send_to_default:
+            tag: openstack.designate
+            type: copy
+            store:
+              - type: relabel
+                label: default_output
+              - type: rewrite_tag_filter
+                rule:
+                  - name: severity_label
+                    regexp: '.'
+                    result: metric.designate_log_messages
+              - type: rewrite_tag_filter
+                rule:
+                  - name: http_status
+                    regexp: '.'
+                    result: metric.designate_openstack_http_response
+          push_to_metric:
+            tag: 'metric.**'
+            type: relabel
+            label: default_metric
+      default_metric:
+        filter:
+          designate_logs_per_severity:
+            tag: metric.designate_log_messages
+            require:
+              - add_general_fields
+            type: prometheus
+            metric:
+              - name: log_messages
+                type: counter
+                desc: Total number of log lines by severity
+            label:
+              - name: service
+                value: designate
+              - name: level
+                value: ${severity_label}
+              - name: host
+                value: ${Hostname}
+          designate_openstack_http_response_times:
+            tag: metric.designate_openstack_http_response
+            require:
+              - add_general_fields
+            type: prometheus
+            metric:
+              - name: openstack_http_response_times
+                type: summary
+                desc: Total number of requests per method and status
+                key: http_response_time
+            label:
+              - name: http_method
+                value: ${http_method}
+              - name: http_status
+                value: ${http_status}
+              - name: service
+                value: designate
+              - name: host
+                value: ${Hostname}
+{% endif %}
diff --git a/designate/server.sls b/designate/server.sls
index d860909..341a1a4 100644
--- a/designate/server.sls
+++ b/designate/server.sls
@@ -25,6 +25,76 @@
 
 {%- endif %}
 
+{%- for service_name in server.services %}
+{{ service_name }}_default:
+  file.managed:
+    - name: /etc/default/{{ service_name }}
+    - source: salt://designate/files/default
+    - template: jinja
+    - require:
+      - pkg: designate_server_packages
+    - defaults:
+        service_name: {{ service_name }}
+        values: {{ server }}
+    - watch_in:
+      - service: designate_server_services
+{%- endfor %}
+
+{% if server.logging.log_appender %}
+
+{%- if server.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+designate_fluentd_server_logger_package:
+  pkg.installed:
+    - name: python-fluent-logger
+{%- endif %}
+
+designate_general_logging_conf:
+  file.managed:
+    - name: /etc/designate/logging.conf
+    - source: salt://designate/files/logging.conf
+    - template: jinja
+    - user: designate
+    - group: designate
+    - defaults:
+        service_name: designate
+        values: {{ server }}
+    - require:
+      - pkg: designate_server_packages
+{%- if server.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+      - pkg: designate_fluentd_server_logger_package
+{%- endif %}
+    - watch_in:
+      - service: designate_server_services
+
+/var/log/designate/designate.log:
+  file.managed:
+    - user: designate
+    - group: designate
+    - watch_in:
+      - service: designate_server_services
+
+{% for service_name in server.services %}
+{{ service_name }}_logging_conf:
+  file.managed:
+    - name: /etc/designate/logging/logging-{{ service_name }}.conf
+    - source: salt://designate/files/logging.conf
+    - template: jinja
+    - makedirs: True
+    - user: designate
+    - group: designate
+    - defaults:
+        service_name: {{ service_name }}
+        values: {{ server }}
+    - require:
+      - pkg: designate_server_packages
+{%- if server.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+      - pkg: designate_fluentd_server_logger_package
+{%- endif %}
+    - watch_in:
+      - service: designate_server_services
+{% endfor %}
+{% endif %}
+
 designate_server_packages:
   pkg.installed:
     - names: {{ server.pkgs }}
@@ -43,16 +113,21 @@
   - require:
     - pkg: designate_server_packages
 
-{%- if not grains.get('noservices', False) %}
 designate_syncdb:
   cmd.run:
     - name: designate-manage database sync
+    {%- if grains.get('noservices') %}
+    - onlyif: /bin/false
+    {%- endif %}
     - require:
       - file: /etc/designate/designate.conf
 
 designate_pool_sync:
   cmd.run:
     - name: designate-manage pool-manager-cache sync
+    {%- if grains.get('noservices') %}
+    - onlyif: /bin/false
+    {%- endif %}
     - require:
       - file: /etc/designate/designate.conf
 
@@ -60,6 +135,9 @@
   service.running:
     - enable: true
     - names: {{ server.services }}
+    {%- if grains.get('noservices') %}
+    - onlyif: /bin/false
+    {%- endif %}
     - require:
       - cmd: designate_syncdb
       - cmd: designate_pool_sync
@@ -71,7 +149,6 @@
       {%- if server.database.get('ssl',{}).get('enabled', False) %}
       - file: mysql_ca_designate_server
       {%- endif %}
-{%- endif %}
 
 {%- if server.version not in ['liberty', 'juno', 'kilo'] and server.pools is defined %}
 # Since Mitaka it is recommended to use pools.yaml for pools configuration
diff --git a/designate/worker.sls b/designate/worker.sls
index abff6e4..b6998e2 100644
--- a/designate/worker.sls
+++ b/designate/worker.sls
@@ -1,5 +1,5 @@
 {%- from "designate/map.jinja" import worker with context %}
-{%- if worker.enabled %}
+{%- if worker.get('enabled', False) %}
 
 designate_worker_packages:
   pkg.installed:
@@ -11,4 +11,50 @@
     - names: {{ worker.services }}
     - watch:
       - file: /etc/designate/designate.conf
+
+{% for service_name in worker.services %}
+{{ service_name }}_default:
+  file.managed:
+    - name: /etc/default/{{ service_name }}
+    - source: salt://designate/files/default
+    - template: jinja
+    - require:
+      - pkg: designate_worker_packages
+    - defaults:
+        service_name: {{ service_name }}
+        values: {{ worker }}
+    - watch_in:
+      - service: designate_worker_services
+{% endfor %}
+
+{% if worker.logging.log_appender %}
+
+{%- if worker.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+designate_fluentd_worker_logger_package:
+  pkg.installed:
+    - name: python-fluent-logger
+{%- endif %}
+
+{% for service_name in worker.services %}
+{{ service_name }}_worker_logging_conf:
+  file.managed:
+    - name: /etc/designate/logging/logging-{{ service_name }}.conf
+    - source: salt://designate/files/logging.conf
+    - template: jinja
+    - makedirs: True
+    - user: designate
+    - group: designate
+    - defaults:
+        service_name: {{ service_name }}
+        values: {{ worker }}
+    - require:
+      - pkg: designate_worker_packages
+{%- if worker.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+      - pkg: designate_fluentd_worker_logger_package
+{%- endif %}
+    - watch_in:
+      - service: designate_worker_services
+{% endfor %}
+{% endif %}
+
 {%- endif %}
diff --git a/metadata/service/server/cluster.yml b/metadata/service/server/cluster.yml
index dfeea19..6080424 100644
--- a/metadata/service/server/cluster.yml
+++ b/metadata/service/server/cluster.yml
@@ -3,6 +3,10 @@
 classes:
 - service.designate.support
 parameters:
+  _param:
+    openstack_log_appender: false
+    openstack_fluentd_handler_enabled: false
+    openstack_ossyslog_handler_enabled: false
   designate:
     server:
       enabled: true
@@ -37,3 +41,22 @@
         virtual_host: '/openstack'
       sink:
         listener_pool_name: 'designate-sink'
+      logging:
+        log_appender: ${_param:openstack_log_appender}
+        log_handlers:
+          watchedfile:
+            enabled: true
+          fluentd:
+            enabled: ${_param:openstack_fluentd_handler_enabled}
+          ossyslog:
+            enabled: ${_param:openstack_ossyslog_handler_enabled}
+    worker:
+      logging:
+        log_appender: ${_param:openstack_log_appender}
+        log_handlers:
+          watchedfile:
+            enabled: true
+          fluentd:
+            enabled: ${_param:openstack_fluentd_handler_enabled}
+          ossyslog:
+            enabled: ${_param:openstack_ossyslog_handler_enabled}
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index e3884c5..a3796ef 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -3,6 +3,10 @@
 classes:
 - service.designate.support
 parameters:
+  _param:
+    openstack_log_appender: false
+    openstack_fluentd_handler_enabled: false
+    openstack_ossyslog_handler_enabled: false
   designate:
     server:
       enabled: true
@@ -37,3 +41,22 @@
         virtual_host: '/openstack'
       sink:
         listener_pool_name: 'designate-sink'
+      logging:
+        log_appender: ${_param:openstack_log_appender}
+        log_handlers:
+          watchedfile:
+            enabled: true
+          fluentd:
+            enabled: ${_param:openstack_fluentd_handler_enabled}
+          ossyslog:
+            enabled: ${_param:openstack_ossyslog_handler_enabled}
+    worker:
+      logging:
+        log_appender: ${_param:openstack_log_appender}
+        log_handlers:
+          watchedfile:
+            enabled: true
+          fluentd:
+            enabled: ${_param:openstack_fluentd_handler_enabled}
+          ossyslog:
+            enabled: ${_param:openstack_ossyslog_handler_enabled}
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index b43a633..45c972c 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -11,3 +11,5 @@
         enabled: true
       config:
         enabled: true
+      fluentd:
+        enabled: true
diff --git a/tests/pillar/designate_liberty.sls b/tests/pillar/designate_liberty.sls
index 320489a..67f072a 100644
--- a/tests/pillar/designate_liberty.sls
+++ b/tests/pillar/designate_liberty.sls
@@ -26,6 +26,15 @@
         - host: 127.0.0.1
         - host: 127.0.1.1
         - host: 127.0.2.1
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
     pool:
       pool_id: cae73b6f-95eb-4a7d-a567-099ae6176e08
       nameservers:
diff --git a/tests/pillar/designate_mitaka.sls b/tests/pillar/designate_mitaka.sls
index 7c8a53d..1b5a148 100644
--- a/tests/pillar/designate_mitaka.sls
+++ b/tests/pillar/designate_mitaka.sls
@@ -26,6 +26,15 @@
         - host: 127.0.0.1
         - host: 127.0.1.1
         - host: 127.0.2.1
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
     pools:
       default:
         description: 'default pool'
diff --git a/tests/pillar/designate_ocata.sls b/tests/pillar/designate_ocata.sls
index acf1f8f..048756f 100644
--- a/tests/pillar/designate_ocata.sls
+++ b/tests/pillar/designate_ocata.sls
@@ -39,6 +39,15 @@
       user: openstack
       password: password
       virtual_host: '/openstack'
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
     pools:
       default:
         description: 'default pool'
@@ -75,6 +84,15 @@
       zones: 40
   worker:
     enabled: true
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
 mysql:
   client:
     enabled: true