Changes horizon log location to kolla_logs volume

Changes location of Horizon log, they will be stored on common log volume
kolla_logs.

Change-Id: Ie9d56999a83efd05ab7c3dcb00b4dc42c9bce8f8
Closes-Bug: 1560250
(cherry picked from commit 8ec7811037)

ansible/roles/common/tasks/config.yml

@@ -26,6 +26,7 @@
     - { name: "elasticsearch", enabled: "{{ enable_central_logging }}" }
     - { name: "global", enabled: "yes" }
     - { name: "haproxy", enabled: "{{ enable_haproxy }}" }
+    - { name: "horizon", enabled: "{{ enable_horizon }}" }
     - { name: "keystone", enabled: "{{ enable_keystone }}" }
     - { name: "mariadb", enabled: "{{ enable_mariadb }}" }
     - { name: "openstack", enabled: "yes" }

ansible/roles/common/templates/heka-horizon.toml.j2

@@ -0,0 +1,13 @@
+[horizon_apache_log_decoder]
+type = "SandboxDecoder"
+filename = "lua_decoders/os_horizon_apache_log.lua"
+    [horizon_apache_log_decoder.config]
+    apache_log_pattern = '%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b %D \"%{Referer}i\" \"%{User-Agent}i\"'
+
+[horizon_apache_logstreamer_input]
+type = "LogstreamerInput"
+decoder = "horizon_apache_log_decoder"
+log_directory = "/var/log/kolla"
+file_match = 'horizon/horizon-apache-(?P<Service>.+)-access\.log\.?(?P<Seq>\d*)$'
+priority = ["^Seq"]
+differentiator = ["horizon-apache-", "Service"]

ansible/roles/common/templates/heka.json.j2

@@ -45,6 +45,13 @@
             "owner": "heka",
             "perm": "0600"
         },
+        {
+            "source": "{{ container_config_directory }}/heka-horizon.toml",
+            "dest": "/etc/heka/heka-horizon.toml",
+            "owner": "heka",
+            "perm": "0600",
+            "optional": {{ (not enable_horizon | bool) | string | lower }}
+        },
 {% for swift_service in swift_services %}
         {
             "source": "{{ container_config_directory }}/heka-{{ swift_service }}.toml",

ansible/roles/horizon/tasks/config.yml

@@ -21,7 +21,6 @@
   with_items:
     - "horizon"
 
-
 - name: Copying over local_settings
   template:
     src: "local_settings.j2"

ansible/roles/horizon/tasks/start.yml

@@ -5,5 +5,7 @@
     common_options: "{{ docker_common_options }}"
     image: "{{ horizon_image_full }}"
     name: "horizon"
-    volumes: "{{ node_config_directory }}/horizon/:{{ container_config_directory }}/:ro"
+    volumes: 
+      - "{{ node_config_directory }}/horizon/:{{ container_config_directory }}/:ro"
+      - "kolla_logs:/var/log/kolla/"
   when: inventory_hostname in groups['horizon']

ansible/roles/horizon/templates/horizon.conf.j2

@@ -1,11 +1,10 @@
-{% set apache_dir = 'apache2' if kolla_base_distro in ['ubuntu', 'debian'] else 'httpd' %}
 {% set python_path = '/usr/lib/python2.7/site-packages' if kolla_install_type == 'binary' else '/var/lib/kolla/venv/lib/python2.7/site-packages' %}
 Listen {{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}:80
 
 <VirtualHost *:80>
     LogLevel warn
-    ErrorLog /var/log/{{ apache_dir }}/horizon.log
+    ErrorLog /var/log/kolla/horizon/horizon.log
-    CustomLog /var/log/{{ apache_dir }}/horizon-access.log combined
+    CustomLog /var/log/kolla/horizon/horizon-access.log combined
 
     WSGIScriptReloading On
     WSGIDaemonProcess horizon-http processes=5 threads=1 user=horizon group=horizon display-name=%{GROUP} python-path={{ python_path }}

docker/heka/plugins/decoders/os_horizon_apache_log.lua

@@ -0,0 +1,72 @@
+-- Copyright 2015 Mirantis, Inc.
+--
+-- 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.
+
+local l      = require 'lpeg'
+l.locale(l)
+
+local common_log_format = require 'common_log_format'
+local patt = require 'os_patterns'
+local utils  = require 'os_utils'
+
+local msg = {
+    Timestamp   = nil,
+    Type        = 'log',
+    Hostname    = nil,
+    Payload     = nil,
+    Pid         = nil,
+    Fields      = nil,
+    Severity    = 6,
+}
+
+local severity_label = utils.severity_to_label_map[msg.Severity]
+
+local apache_log_pattern = read_config("apache_log_pattern") or error(
+    "apache_log_pattern configuration must be specificed")
+local apache_grammar = common_log_format.build_apache_grammar(apache_log_pattern)
+local request_grammar = l.Ct(patt.http_request)
+
+function process_message ()
+
+    -- logger is either "horizon-apache-public" or "horizon-apache-admin"
+    local logger = read_message("Logger")
+
+    local log = read_message("Payload")
+
+    local m
+
+    m = apache_grammar:match(log)
+    if m then
+        msg.Logger = 'openstack.horizon'
+        msg.Payload = log
+        msg.Timestamp = m.time
+
+        msg.Fields = {}
+        msg.Fields.http_status = m.status
+        msg.Fields.http_response_time = m.request_time.value / 1e6 -- us to sec
+        msg.Fields.programname = logger
+        msg.Fields.severity_label = severity_label
+
+        local request = m.request
+        m = request_grammar:match(request)
+        if m then
+            msg.Fields.http_method = m.http_method
+            msg.Fields.http_url = m.http_url
+            msg.Fields.http_version = m.http_version
+        end
+
+        return utils.safe_inject_message(msg)
+    end
+
+    return -1, string.format("Failed to parse %s log: %s", logger, string.sub(log, 1, 64))
+end