Add support loggin conf for manila

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

Change-Id: Ib4000d368976c07ff8724069b09dedb38b664874
Related-Prod: PROD-19781
diff --git a/.travis.yml b/.travis.yml
index 8f62a35..e7b61ad 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,11 +27,13 @@
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 OS_VERSION=pike SUITE=share-nexenta
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 OS_VERSION=pike SUITE=share-glusterfs
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 OS_VERSION=pike SUITE=server-cluster-ssl
-  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=server-cluster
-  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=server-single
-  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=share-nexenta
-  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=share-glusterfs
-  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=server-cluster-ssl
+#  Uncomment when salt 2018.3.1 released bug https://github.com/saltstack/salt/issues/46929
+#  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=server-cluster
+#  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=server-single
+#  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=share-nexenta
+#  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=share-glusterfs
+#  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 OS_VERSION=pike SUITE=server-cluster-ssl
+#
 #  - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 OS_VERSION=pike SUITE=server-cluster
 #  - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 OS_VERSION=pike SUITE=server-single
 #  - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 OS_VERSION=pike SUITE=share-nexenta
diff --git a/README.rst b/README.rst
index e3e4bad..f7fcf2d 100644
--- a/README.rst
+++ b/README.rst
@@ -112,6 +112,31 @@
                 extra_specs:
                   driver_handles_share_servers: false
 
+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
+
+  manila:
+    common:
+      logging:
+        log_appender: true
+        log_handlers:
+          watchedfile:
+            enabled: true
+          fluentd:
+            enabled: true
+
 More information
 ================
 
diff --git a/manila/_logging.sls b/manila/_logging.sls
new file mode 100644
index 0000000..700f008
--- /dev/null
+++ b/manila/_logging.sls
@@ -0,0 +1,37 @@
+{%- if config.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+{{ service_name }}_fluentd_logger_package:
+  pkg.installed:
+    - name: python-fluent-logger
+{%- endif %}
+
+{{ service_name }}_logging_conf:
+  file.managed:
+    - name: /etc/manila/logging/logging-{{ service_name }}.conf
+    - source: salt://manila/files/logging.conf
+    - template: jinja
+    - makedirs: True
+    - user: manila
+    - group: manila
+    - defaults:
+        service_name: {{ service_name }}
+        values: {{ config }}
+    - require:
+      - pkg: {{ service_name }}_pkg
+{%- if config.logging.log_handlers.get('fluentd', {}).get('enabled', False) %}
+      - pkg: {{ service_name }}_fluentd_logger_package
+{%- endif %}
+    - watch_in:
+      - service: {{ service_name }}
+
+{{ service_name }}_default:
+  file.managed:
+    - name: /etc/default/{{ service_name }}
+    - source: salt://manila/files/default
+    - template: jinja
+    - require:
+      - pkg: {{ service_name }}_pkg
+    - defaults:
+        service_name: {{ service_name }}
+        values: {{ config }}
+    - watch_in:
+      - service: {{ service_name }}
\ No newline at end of file
diff --git a/manila/data.sls b/manila/data.sls
index b4864dc..0516b98 100644
--- a/manila/data.sls
+++ b/manila/data.sls
@@ -1,9 +1,9 @@
-{%- from "manila/map.jinja" import data with context %}
+{%- from "manila/map.jinja" import data, cfg with context %}
 {%- if data.enabled %}
 include:
   - manila._common
 
-manila_data_packages:
+{{ data.service }}_pkg:
   pkg.installed:
   - names: {{ data.pkgs }}
 
@@ -16,4 +16,14 @@
     - onlyif: /bin/false
     {%- endif %}
 
-{%- endif %}
+{% if not data.get('logging', {}).get('log_appender', False) %}
+{%- do data.update({'logging': cfg.logging})%}
+{% endif %}
+
+{% if data.logging.log_appender == True %}
+{%- set service_name = data.service %}
+{%- set config = data %}
+{%- include "manila/_logging.sls" %}
+{% endif %}
+
+{%- endif %}
\ No newline at end of file
diff --git a/manila/files/default b/manila/files/default
new file mode 100644
index 0000000..5a1a7b1
--- /dev/null
+++ b/manila/files/default
@@ -0,0 +1,4 @@
+# Generated by Salt.
+{% if values.logging.log_appender %}
+DAEMON_ARGS="--log-config-append=/etc/manila/logging/logging-{{ service_name }}.conf"
+{% endif %}
diff --git a/manila/files/logging.conf b/manila/files/logging.conf
new file mode 100644
index 0000000..eaa0b1e
--- /dev/null
+++ b/manila/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, manila
+
+[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_manila]
+level = {{ values.logging.get('loggers', {}).get('manila', {}).get('level', 'INFO') }}
+handlers = {{ log_handlers | join(", ") }}
+qualname = manila
+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/manila/{{ 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/manila/map.jinja b/manila/map.jinja
index 80350ad..4b7aa93 100644
--- a/manila/map.jinja
+++ b/manila/map.jinja
@@ -4,7 +4,18 @@
     })
 %}
 
-{% set cfg = pillar.manila.get('common', {}) %}
+{% set cfg = salt['grains.filter_by']({
+    'Debian': {
+        'logging': {
+          'log_appender': false,
+          'log_handlers': {
+            'watchedfile': {
+              'enabled': true
+            }
+          },
+        },
+    }
+}, merge=pillar.manila.get('common', {})) %}
 
 {% set api = salt['grains.filter_by']({
     'Debian': {
diff --git a/manila/meta/fluentd.yml b/manila/meta/fluentd.yml
new file mode 100644
index 0000000..21f00be
--- /dev/null
+++ b/manila/meta/fluentd.yml
@@ -0,0 +1,171 @@
+{%- from "manila/map.jinja" import api with context %}
+{%- if pillar.get('fluentd', {}).get('agent', {}).get('enabled', False) %}
+{%- set positiondb = pillar.fluentd.agent.dir.positiondb %}
+{%- set apache_wsgi = api.get('enabled', False) %}
+agent:
+  config:
+    label:
+      forward_input:
+        input:
+          generic_forward_input:
+            type: forward
+            bind: 0.0.0.0
+            port: 24224
+        match:
+          route_openstack_manila:
+            tag: openstack.manila.**
+            type: relabel
+            label: openstack_manila
+{%- if apache_wsgi %}
+      openstack_manila_wsgi:
+        input:
+          manila_api_wsgi_in_tail:
+            type: tail
+            path: /var/log/apache2/manila.access.log
+            tag: openstack.manila
+            pos_file: {{ positiondb }}/manila.wsgi.pos
+            parser:
+              type: regexp
+              time_key: Timestamp
+              time_format: '%d/%b/%Y:%H:%M:%S %z'
+              keep_time_key: false
+              # Apache format: https://regex101.com/r/WeCT7s/5
+              format: '/(?<hostname>[\w\.\-]+)\:(?<port>\d+)\s(?<http_client_ip_address>[\d\.]+)\s\-\s\-\s\[(?<Timestamp>.*)\]\s(?<Payload>\"(?<http_method>[A-Z]+)\s(?<http_url>\S+)\s(?<http_version>[.\/\dHTFSP]+)\"\s(?<http_status>\d{3})\s(?<http_response_time>\d+)\s(?<http_response_size>\d+)\s\"(?<http_referer>.*)\"\s\"(?<user_agent>.*)\")/'
+        filter:
+          add_manila_wsgi_record_fields:
+            tag: openstack.manila
+            type: record_transformer
+            enable_ruby: true
+            record:
+              - name: Severity
+                value: 6
+              - name: severity_label
+                value: INFO
+              - name: programname
+                value: manila-wsgi
+              - name: http_response_time
+                value: ${ record['http_response_time'].to_i/100000.to_f }
+        match:
+          send_to_default:
+            tag: openstack.manila
+            type: copy
+            store:
+              - type: relabel
+                label: default_output
+              - type: rewrite_tag_filter
+                rule:
+                  - name: severity_label
+                    regexp: '.'
+                    result: metric.manila_log_messages
+              - type: rewrite_tag_filter
+                rule:
+                  - name: http_status
+                    regexp: '.'
+                    result: metric.manila_openstack_http_response
+          push_to_metric:
+            tag: 'metric.**'
+            type: relabel
+            label: default_metric
+{%- endif %}
+      openstack_manila:
+        filter:
+          set_programname:
+            tag: openstack.manila.*
+            type: record_transformer
+            enable_ruby: true
+            record:
+              - name: programname
+                value: manila-${ tag_parts[2] }
+        filter:
+          set_log_record_fields:
+            tag: openstack.manila
+            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"] : "manila" }'
+          parse_http_stats:
+            tag: openstack.manila
+            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.manila.*
+            type: rewrite_tag_filter
+            rule:
+              - name: level
+                regexp: '.*'
+                result: openstack.manila
+          send_to_default:
+            tag: openstack.manila
+            type: copy
+            store:
+              - type: relabel
+                label: default_output
+              - type: rewrite_tag_filter
+                rule:
+                  - name: severity_label
+                    regexp: '.'
+                    result: metric.manila_log_messages
+              - type: rewrite_tag_filter
+                rule:
+                  - name: http_status
+                    regexp: '.'
+                    result: metric.manila_openstack_http_response
+          push_to_metric:
+            tag: 'metric.**'
+            type: relabel
+            label: default_metric
+      default_metric:
+        filter:
+          manila_logs_per_severity:
+            tag: metric.manila_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: manila
+              - name: level
+                value: ${severity_label}
+              - name: host
+                value: ${Hostname}
+          manila_openstack_http_response_times:
+            tag: metric.manila_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: manila
+              - name: host
+                value: ${Hostname}
+{% endif %}
diff --git a/manila/scheduler.sls b/manila/scheduler.sls
index 9089c90..ae4af1f 100644
--- a/manila/scheduler.sls
+++ b/manila/scheduler.sls
@@ -1,9 +1,9 @@
-{%- from "manila/map.jinja" import scheduler with context %}
+{%- from "manila/map.jinja" import scheduler, cfg with context %}
 {%- if scheduler.enabled %}
 include:
   - manila._common
 
-manila_scheduler_packages:
+{{ scheduler.service }}_pkg:
   pkg.installed:
   - names: {{ scheduler.pkgs }}
 
@@ -16,4 +16,14 @@
     - onlyif: /bin/false
     {%- endif %}
 
+{% if not scheduler.get('logging', {}).get('log_appender', False) %}
+{%- do scheduler.update({'logging': cfg.logging})%}
+{% endif %}
+
+{% if scheduler.logging.log_appender == True %}
+{%- set service_name = scheduler.service %}
+{%- set config = scheduler %}
+{%- include "manila/_logging.sls" %}
+{% endif %}
+
 {%- endif %}
diff --git a/manila/share.sls b/manila/share.sls
index 76228b0..c44f23f 100644
--- a/manila/share.sls
+++ b/manila/share.sls
@@ -1,9 +1,9 @@
-{%- from "manila/map.jinja" import share with context %}
+{%- from "manila/map.jinja" import share, cfg with context %}
 {%- if share.enabled %}
 include:
   - manila._common
 
-manila_share_packages:
+{{ share.service }}_pkg:
   pkg.installed:
   - names: {{ share.pkgs }}
 
@@ -16,4 +16,14 @@
     - onlyif: /bin/false
     {%- endif %}
 
-{%- endif %}
+{% if not share.get('logging', {}).get('log_appender', False) %}
+{%- do share.update({'logging': cfg.logging})%}
+{% endif %}
+
+{% if share.logging.log_appender == True %}
+{%- set service_name = share.service %}
+{%- set config = share %}
+{%- include "manila/_logging.sls" %}
+{% endif %}
+
+{%- endif %}
\ No newline at end of file
diff --git a/metadata/service/common/cluster.yml b/metadata/service/common/cluster.yml
index e9e9b15..bcce15f 100644
--- a/metadata/service/common/cluster.yml
+++ b/metadata/service/common/cluster.yml
@@ -1,6 +1,10 @@
 applications:
   - manila
 parameters:
+  _param:
+    openstack_log_appender: false
+    openstack_fluentd_handler_enabled: false
+    openstack_ossyslog_handler_enabled: false
   manila:
     common:
       version: ${_param:openstack_version}
@@ -30,3 +34,12 @@
         user_domain_id: default
         project_domain_id: default
         protocol: 'http'
+      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/common/single.yml b/metadata/service/common/single.yml
index b61b269..4919207 100644
--- a/metadata/service/common/single.yml
+++ b/metadata/service/common/single.yml
@@ -1,6 +1,10 @@
 applications:
   - manila
 parameters:
+  _param:
+    openstack_log_appender: false
+    openstack_fluentd_handler_enabled: false
+    openstack_ossyslog_handler_enabled: false
   manila:
     common:
       version: ${_param:openstack_version}
@@ -30,3 +34,12 @@
         user_domain_id: default
         project_domain_id: default
         protocol: 'http'
+      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 559dee2..6130e38 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -9,3 +9,5 @@
         enabled: false
       sphinx:
         enabled: true
+      fluentd:
+        enabled: true
diff --git a/tests/pillar/server_cluster.sls b/tests/pillar/server_cluster.sls
index 368c199..bae2402 100644
--- a/tests/pillar/server_cluster.sls
+++ b/tests/pillar/server_cluster.sls
@@ -34,6 +34,15 @@
       user: openstack
       password: workshop
       virtual_host: '/openstack'
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
 apache:
   server:
     enabled: true
diff --git a/tests/pillar/server_cluster_ssl.sls b/tests/pillar/server_cluster_ssl.sls
index 425de7f..0df203d 100644
--- a/tests/pillar/server_cluster_ssl.sls
+++ b/tests/pillar/server_cluster_ssl.sls
@@ -38,6 +38,15 @@
       user: openstack
       password: workshop
       virtual_host: '/openstack'
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
 apache:
   server:
     enabled: true
diff --git a/tests/pillar/server_single.sls b/tests/pillar/server_single.sls
index 7a82b43..09e10be 100644
--- a/tests/pillar/server_single.sls
+++ b/tests/pillar/server_single.sls
@@ -28,6 +28,15 @@
       user: openstack
       password: workshop
       virtual_host: '/openstack'
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
 apache:
   server:
     enabled: true
diff --git a/tests/pillar/share_glusterfs.sls b/tests/pillar/share_glusterfs.sls
index 41a9526..6b68be2 100644
--- a/tests/pillar/share_glusterfs.sls
+++ b/tests/pillar/share_glusterfs.sls
@@ -45,6 +45,15 @@
           - server1
           - server2
         glusterfs_volume_pattern: manila-share-volume-d+$
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
 apache:
   server:
     enabled: true
diff --git a/tests/pillar/share_nexenta.sls b/tests/pillar/share_nexenta.sls
index 7d6dc28..6c28bbf 100644
--- a/tests/pillar/share_nexenta.sls
+++ b/tests/pillar/share_nexenta.sls
@@ -35,6 +35,15 @@
         nexenta_password: secretpassword
         nexenta_user: nonexistent
         nexenta_volume: volume1
+    logging:
+      log_appender: false
+      log_handlers:
+        watchedfile:
+          enabled: true
+        fluentd:
+          enabled: false
+        ossyslog:
+          enabled: false
 apache:
   server:
     enabled: true