Rotate Kibana logs

Change-Id: I8b0c419c3cd67ffec20b0cd5ed733c6f057f1147

deployment_scripts/puppet/modules/lma_logging_analytics/manifests/kibana.pp

@@ -34,8 +34,12 @@ class lma_logging_analytics::kibana (
     ensure => $version,
   }
 
+  # The init script always creates /var/log/kibana and sets appropriate rights.
+  $log_dir = '/var/log/kibana'
+
   file { '/opt/kibana/config/kibana.yml':
     ensure  => present,
+    # This template uses $log_dir
     content => template('lma_logging_analytics/kibana4.yaml.erb'),
     notify  => Service['kibana'],
     require => Package['kibana'],
@@ -48,4 +52,14 @@ class lma_logging_analytics::kibana (
     hasrestart => true,
     require    => Package['kibana'],
   }
+
+  file { '/etc/logrotate.d/kibana.conf':
+    ensure  => present,
+    # This template uses $log_dir
+    content => template('lma_logging_analytics/kibana_logrotate.conf.erb'),
+    owner   => 'root',
+    group   => 'root',
+    mode    => '0644',
+    require => Package['kibana'],
+  }
 }

deployment_scripts/puppet/modules/lma_logging_analytics/spec/classes/lma_logging_analytics_kibana_spec.rb

@@ -28,4 +28,6 @@ describe 'lma_logging_analytics::kibana' do
         :ensure => '42.24')
     }
     it { should contain_service('kibana')}
+
+    it { is_expected.to  contain_file('/etc/logrotate.d/kibana.conf') }
 end

deployment_scripts/puppet/modules/lma_logging_analytics/templates/kibana4.yaml.erb

@@ -2,3 +2,4 @@ elasticsearch.url: "<%= @es_scheme %>://<%= @es_host %>:<%= @es_port %>"
 server.host: <%= @listen_address %>
 server.port: <%= @listen_port %>
 kibana.defaultAppId: "dashboard/Logs"
+logging.dest: "<%= @log_dir %>/kibana.log"

deployment_scripts/puppet/modules/lma_logging_analytics/templates/kibana_logrotate.conf.erb

@@ -0,0 +1,19 @@
+# managed by puppet
+
+<%= @log_dir %>/*.log {
+    copytruncate
+    compress
+    delaycompress
+    missingok
+    notifempty
+    # logrotate allows to use only year, month, day and unix epoch
+    dateext
+    dateformat -%Y%m%d-%s
+    # number of rotated files to keep
+    rotate 10
+    # do not rotate files unless both size and time conditions are met
+    hourly
+    minsize 20M
+    # force rotate if filesize exceeded 100M
+    maxsize 100M
+}