diff --git a/graylog.yml b/graylog.yml
new file mode 100644
index 0000000..0ac8bc2
--- /dev/null
+++ b/graylog.yml
@@ -0,0 +1,32 @@
+- hosts: graylog
+  name: setup mongodb
+  roles:
+  - mongodb
+  tasks:
+  - name: ensure mongodb is running
+    service:
+      name=mongod
+      state=started
+
+- hosts: graylog
+  name: setup elasticsearch
+  roles:
+  - elasticsearch
+  tasks:
+  - name: ensure elasticsearch is running
+    service:
+      name=elasticsearch
+      state=started
+
+- hosts: graylog
+  name: setup graylog
+  vars_files:
+    vault/graylog/{{ inventory_hostname }}
+  roles:
+  - apache
+  - graylog
+  tasks:
+  - name: ensure graylog is running
+    service:
+      name=graylog-server
+      state=started
diff --git a/group_vars/pyrocufflink-dhcp.yml b/group_vars/pyrocufflink-dhcp.yml
index 8fc6ce6..f2f2eb2 100644
--- a/group_vars/pyrocufflink-dhcp.yml
+++ b/group_vars/pyrocufflink-dhcp.yml
@@ -132,6 +132,9 @@ dhcp_reservations:
 - host: serial0.pyrocufflink.blue
   ip_addr: 172.30.0.16
   mac_addr: b8:27:eb:c4:34:be
+- host: logs0.pyrocufflink.blue
+  ip_addr: 172.30.0.17
+  mac_addr: 52:54:00:b1:84:98
 
 # Management
 - host: unifi0
diff --git a/host_vars/logs0.pyrocufflink.blue.yml b/host_vars/logs0.pyrocufflink.blue.yml
new file mode 100644
index 0000000..f0a8cb0
--- /dev/null
+++ b/host_vars/logs0.pyrocufflink.blue.yml
@@ -0,0 +1 @@
+graylog_server_host: graylog.pyrocufflink.blue
diff --git a/hosts b/hosts
index dc35901..1b5515c 100644
--- a/hosts
+++ b/hosts
@@ -41,6 +41,9 @@ file0.pyrocufflink.blue
 [gitea]
 git0.pyrocufflink.blue
 
+[graylog]
+logs0.pyrocufflink.blue
+
 [hassdb]
 hassdb0.pyrocufflink.blue
 
@@ -96,6 +99,7 @@ hass1.pyrocufflink.blue
 hassdb0.pyrocufflink.blue
 jenkins0.pyrocufflink.blue
 koji0.pyrocufflink.blue
+logs0.pyrocufflink.blue
 smtp1.pyrocufflink.blue
 vpn0.pyrocufflink.blue
 web0.pyrocufflink.blue
diff --git a/roles/elasticsearch/defaults/main.yml b/roles/elasticsearch/defaults/main.yml
new file mode 100644
index 0000000..6dee743
--- /dev/null
+++ b/roles/elasticsearch/defaults/main.yml
@@ -0,0 +1,5 @@
+elasticsearch_version: '6'
+es_xmx: 1g
+es_xms: '{{ es_xmx }}'
+es_enable_gc_logging: false
+es_log_size: 128M
diff --git a/roles/elasticsearch/handlers/main.yml b/roles/elasticsearch/handlers/main.yml
new file mode 100644
index 0000000..ee2d37d
--- /dev/null
+++ b/roles/elasticsearch/handlers/main.yml
@@ -0,0 +1,4 @@
+- name: restart elasticsearch
+  service:
+    name=elasticsearch
+    state=restarted
diff --git a/roles/elasticsearch/tasks/main.yml b/roles/elasticsearch/tasks/main.yml
new file mode 100644
index 0000000..213ee32
--- /dev/null
+++ b/roles/elasticsearch/tasks/main.yml
@@ -0,0 +1,41 @@
+- name: ensure java is installed
+  package:
+    name=java-1.8.0-openjdk-headless
+    state=present
+  tags:
+  - install
+
+- name: ensure elasticsearch package repository is available
+  template:
+    src=elasticsearch.repo.j2
+    dest=/etc/yum.repos.d/elasticsearch.repo
+    mode=0644
+  tags:
+  - install
+
+- name: Ensure elasticsearch is installed
+  package:
+    name: 'elasticsearch'
+    state: present
+  tags:
+  - install
+
+- name: ensure elasticsearch logging is configured
+  template:
+    src=log4j2.properties.j2
+    dest=/etc/elasticsearch/log4j2.properties
+    mode=0640
+    owner=root
+    group=elasticsearch
+
+- name: ensure elasticsearch jvm options are set
+  template:
+    src=jvm.options.j2
+    dest=/etc/elasticsearch/jvm.options
+    mode=0644
+  notify: restart elasticsearch
+
+- name: ensure elasticsearch server starts at boot
+  service:
+    name=elasticsearch
+    enabled=yes
diff --git a/roles/elasticsearch/templates/elasticsearch.repo.j2 b/roles/elasticsearch/templates/elasticsearch.repo.j2
new file mode 100644
index 0000000..59f7c63
--- /dev/null
+++ b/roles/elasticsearch/templates/elasticsearch.repo.j2
@@ -0,0 +1,6 @@
+[elasticsearch-{{ elasticsearch_version }}.x]
+name=Elasticsearch repository for {{ elasticsearch_version }}.x packages
+baseurl=https://artifacts.elastic.co/packages/{{ elasticsearch_version }}.x/yum
+gpgcheck=1
+gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
+enabled=1
diff --git a/roles/elasticsearch/templates/jvm.options.j2 b/roles/elasticsearch/templates/jvm.options.j2
new file mode 100644
index 0000000..14d6098
--- /dev/null
+++ b/roles/elasticsearch/templates/jvm.options.j2
@@ -0,0 +1,109 @@
+## JVM configuration
+
+################################################################
+## IMPORTANT: JVM heap size
+################################################################
+##
+## You should always set the min and max JVM heap
+## size to the same value. For example, to set
+## the heap to 4 GB, set:
+##
+## -Xms4g
+## -Xmx4g
+##
+## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html
+## for more information
+##
+################################################################
+
+# Xms represents the initial size of total heap space
+# Xmx represents the maximum size of total heap space
+
+-Xms{{ es_xms }}
+-Xmx{{ es_xmx }}
+
+################################################################
+## Expert settings
+################################################################
+##
+## All settings below this section are considered
+## expert settings. Don't tamper with them unless
+## you understand what you are doing
+##
+################################################################
+
+## GC configuration
+-XX:+UseConcMarkSweepGC
+-XX:CMSInitiatingOccupancyFraction=75
+-XX:+UseCMSInitiatingOccupancyOnly
+
+## optimizations
+
+# pre-touch memory pages used by the JVM during initialization
+-XX:+AlwaysPreTouch
+
+## basic
+
+# explicitly set the stack size
+-Xss1m
+
+# set to headless, just in case
+-Djava.awt.headless=true
+
+# ensure UTF-8 encoding by default (e.g. filenames)
+-Dfile.encoding=UTF-8
+
+# use our provided JNA always versus the system one
+-Djna.nosys=true
+
+# turn off a JDK optimization that throws away stack traces for common
+# exceptions because stack traces are important for debugging
+-XX:-OmitStackTraceInFastThrow
+
+# flags to configure Netty
+-Dio.netty.noUnsafe=true
+-Dio.netty.noKeySetOptimization=true
+-Dio.netty.recycler.maxCapacityPerThread=0
+
+# log4j 2
+-Dlog4j.shutdownHookEnabled=false
+-Dlog4j2.disable.jmx=true
+{% if es_tmpdir is defined %}
+
+-Djava.io.tmpdir={{ es_tmpdir }}
+{% endif %}
+
+## heap dumps
+
+# generate a heap dump when an allocation from the Java heap fails
+# heap dumps are created in the working directory of the JVM
+-XX:+HeapDumpOnOutOfMemoryError
+
+# specify an alternative path for heap dumps; ensure the directory exists and
+# has sufficient space
+-XX:HeapDumpPath=/var/lib/elasticsearch
+
+# specify an alternative path for JVM fatal error logs
+-XX:ErrorFile=/var/log/elasticsearch/hs_err_pid%p.log
+{% if es_enable_gc_logging|bool %}
+
+## JDK 8 GC logging
+
+8:-XX:+PrintGCDetails
+8:-XX:+PrintGCDateStamps
+8:-XX:+PrintTenuringDistribution
+8:-XX:+PrintGCApplicationStoppedTime
+8:-Xloggc:/var/log/elasticsearch/gc.log
+8:-XX:+UseGCLogFileRotation
+8:-XX:NumberOfGCLogFiles=32
+8:-XX:GCLogFileSize=64m
+
+# JDK 9+ GC logging
+9-:-Xlog:gc*,gc+age=trace,safepoint:file=/var/log/elasticsearch/gc.log:utctime,pid,tags:filecount=32,filesize=64m
+# due to internationalization enhancements in JDK 9 Elasticsearch need to set the provider to COMPAT otherwise
+# time/date parsing will break in an incompatible way for some date patterns and locals
+9-:-Djava.locale.providers=COMPAT
+
+# temporary workaround for C2 bug with JDK 10 on hardware with AVX-512
+10-:-XX:UseAVX=2
+{% endif %}
diff --git a/roles/elasticsearch/templates/log4j2.properties.j2 b/roles/elasticsearch/templates/log4j2.properties.j2
new file mode 100644
index 0000000..4f8f5c5
--- /dev/null
+++ b/roles/elasticsearch/templates/log4j2.properties.j2
@@ -0,0 +1,182 @@
+status = error
+
+# log action execution errors for easier debugging
+logger.action.name = org.elasticsearch.action
+logger.action.level = debug
+
+appender.console.type = Console
+appender.console.name = console
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] [%node_name]%marker %m%n
+
+appender.rolling.type = RollingFile
+appender.rolling.name = rolling
+appender.rolling.fileName = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}.log
+appender.rolling.layout.type = PatternLayout
+appender.rolling.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] [%node_name]%marker %.-10000m%n
+appender.rolling.filePattern = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}-%d{yyyy-MM-dd}-%i.log.gz
+appender.rolling.policies.type = Policies
+appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
+appender.rolling.policies.size.size = {{ es_log_size }}
+appender.rolling.strategy.type = DefaultRolloverStrategy
+appender.rolling.strategy.max = 4
+appender.rolling.strategy.fileIndex = nomax
+appender.rolling.strategy.action.type = Delete
+appender.rolling.strategy.action.basepath = ${sys:es.logs.base_path}
+appender.rolling.strategy.action.condition.type = IfFileName
+appender.rolling.strategy.action.condition.glob = ${sys:es.logs.cluster_name}-*
+appender.rolling.strategy.action.condition.nested_condition.type = IfAccumulatedFileSize
+appender.rolling.strategy.action.condition.nested_condition.exceeds = 2GB
+
+rootLogger.level = info
+rootLogger.appenderRef.console.ref = console
+rootLogger.appenderRef.rolling.ref = rolling
+
+appender.deprecation_rolling.type = RollingFile
+appender.deprecation_rolling.name = deprecation_rolling
+appender.deprecation_rolling.fileName = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_deprecation.log
+appender.deprecation_rolling.layout.type = PatternLayout
+appender.deprecation_rolling.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] [%node_name]%marker %.-10000m%n
+appender.deprecation_rolling.filePattern = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_deprecation-%i.log.gz
+appender.deprecation_rolling.policies.type = Policies
+appender.deprecation_rolling.policies.size.type = SizeBasedTriggeringPolicy
+appender.deprecation_rolling.policies.size.size = {{ es_log_size }}
+appender.deprecation_rolling.strategy.type = DefaultRolloverStrategy
+appender.deprecation_rolling.strategy.max = 4
+
+logger.deprecation.name = org.elasticsearch.deprecation
+logger.deprecation.level = warn
+logger.deprecation.appenderRef.deprecation_rolling.ref = deprecation_rolling
+logger.deprecation.additivity = false
+
+appender.index_search_slowlog_rolling.type = RollingFile
+appender.index_search_slowlog_rolling.name = index_search_slowlog_rolling
+appender.index_search_slowlog_rolling.fileName = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_index_search_slowlog.log
+appender.index_search_slowlog_rolling.layout.type = PatternLayout
+appender.index_search_slowlog_rolling.layout.pattern = [%d{ISO8601}][%-5p][%-25c] [%node_name]%marker %.-10000m%n
+appender.index_search_slowlog_rolling.filePattern = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_index_search_slowlog-%i.log
+appender.index_search_slowlog_rolling.policies.type = Policies
+appender.index_search_slowlog_rolling.policies.size.type = SizeBasedTriggeringPolicy
+appender.index_search_slowlog_rolling.policies.size.size = {{ es_log_size }}
+appender.index_search_slowlog_rolling.strategy.type = DefaultRolloverStrategy
+appender.index_search_slowlog_rolling.strategy.max = 4
+
+logger.index_search_slowlog_rolling.name = index.search.slowlog
+logger.index_search_slowlog_rolling.level = trace
+logger.index_search_slowlog_rolling.appenderRef.index_search_slowlog_rolling.ref = index_search_slowlog_rolling
+logger.index_search_slowlog_rolling.additivity = false
+
+appender.index_indexing_slowlog_rolling.type = RollingFile
+appender.index_indexing_slowlog_rolling.name = index_indexing_slowlog_rolling
+appender.index_indexing_slowlog_rolling.fileName = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_index_indexing_slowlog.log
+appender.index_indexing_slowlog_rolling.layout.type = PatternLayout
+appender.index_indexing_slowlog_rolling.layout.pattern = [%d{ISO8601}][%-5p][%-25c] [%node_name]%marker %.-10000m%n
+appender.index_indexing_slowlog_rolling.filePattern = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_index_indexing_slowlog-%i.log
+appender.index_indexing_slowlog_rolling.policies.type = Policies
+appender.index_indexing_slowlog_rolling.policies.size.type = SizeBasedTriggeringPolicy
+appender.index_indexing_slowlog_rolling.policies.size.size = {{ es_log_size }}
+appender.index_indexing_slowlog_rolling.strategy.type = DefaultRolloverStrategy
+appender.index_indexing_slowlog_rolling.strategy.max = 4
+
+logger.index_indexing_slowlog.name = index.indexing.slowlog.index
+logger.index_indexing_slowlog.level = trace
+logger.index_indexing_slowlog.appenderRef.index_indexing_slowlog_rolling.ref = index_indexing_slowlog_rolling
+logger.index_indexing_slowlog.additivity = false
+
+
+appender.audit_rolling.type = RollingFile
+appender.audit_rolling.name = audit_rolling
+appender.audit_rolling.fileName = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_audit.log
+appender.audit_rolling.layout.type = PatternLayout
+appender.audit_rolling.layout.pattern = {\
+                "@timestamp":"%d{ISO8601}"\
+                %varsNotEmpty{, "node.name":"%enc{{ '{%' }}map{node.name}}{JSON}"}\
+                %varsNotEmpty{, "node.id":"%enc{{ '{%' }}map{node.id}}{JSON}"}\
+                %varsNotEmpty{, "host.name":"%enc{{ '{%' }}map{host.name}}{JSON}"}\
+                %varsNotEmpty{, "host.ip":"%enc{{ '{%' }}map{host.ip}}{JSON}"}\
+                %varsNotEmpty{, "event.type":"%enc{{ '{%' }}map{event.type}}{JSON}"}\
+                %varsNotEmpty{, "event.action":"%enc{{ '{%' }}map{event.action}}{JSON}"}\
+                %varsNotEmpty{, "user.name":"%enc{{ '{%' }}map{user.name}}{JSON}"}\
+                %varsNotEmpty{, "user.run_by.name":"%enc{{ '{%' }}map{user.run_by.name}}{JSON}"}\
+                %varsNotEmpty{, "user.run_as.name":"%enc{{ '{%' }}map{user.run_as.name}}{JSON}"}\
+                %varsNotEmpty{, "user.realm":"%enc{{ '{%' }}map{user.realm}}{JSON}"}\
+                %varsNotEmpty{, "user.run_by.realm":"%enc{{ '{%' }}map{user.run_by.realm}}{JSON}"}\
+                %varsNotEmpty{, "user.run_as.realm":"%enc{{ '{%' }}map{user.run_as.realm}}{JSON}"}\
+                %varsNotEmpty{, "user.roles":%map{user.roles}}\
+                %varsNotEmpty{, "origin.type":"%enc{{ '{%' }}map{origin.type}}{JSON}"}\
+                %varsNotEmpty{, "origin.address":"%enc{{ '{%' }}map{origin.address}}{JSON}"}\
+                %varsNotEmpty{, "realm":"%enc{{ '{%' }}map{realm}}{JSON}"}\
+                %varsNotEmpty{, "url.path":"%enc{{ '{%' }}map{url.path}}{JSON}"}\
+                %varsNotEmpty{, "url.query":"%enc{{ '{%' }}map{url.query}}{JSON}"}\
+                %varsNotEmpty{, "request.body":"%enc{{ '{%' }}map{request.body}}{JSON}"}\
+                %varsNotEmpty{, "action":"%enc{{ '{%' }}map{action}}{JSON}"}\
+                %varsNotEmpty{, "request.name":"%enc{{ '{%' }}map{request.name}}{JSON}"}\
+                %varsNotEmpty{, "indices":%map{indices}}\
+                %varsNotEmpty{, "opaque_id":"%enc{{ '{%' }}map{opaque_id}}{JSON}"}\
+                %varsNotEmpty{, "transport.profile":"%enc{{ '{%' }}map{transport.profile}}{JSON}"}\
+                %varsNotEmpty{, "rule":"%enc{{ '{%' }}map{rule}}{JSON}"}\
+                %varsNotEmpty{, "event.category":"%enc{{ '{%' }}map{event.category}}{JSON}"}\
+                }%n
+# "node.name" node name from the `elasticsearch.yml` settings
+# "node.id" node id which should not change between cluster restarts
+# "host.name" unresolved hostname of the local node
+# "host.ip" the local bound ip (i.e. the ip listening for connections)
+# "event.type" a received REST request is translated into one or more transport requests. This indicates which processing layer generated the event "rest" or "transport" (internal)
+# "event.action" the name of the audited event, eg. "authentication_failed", "access_granted", "run_as_granted", etc.
+# "user.name" the subject name as authenticated by a realm
+# "user.run_by.name" the original authenticated subject name that is impersonating another one.
+# "user.run_as.name" if this "event.action" is of a run_as type, this is the subject name to be impersonated as.
+# "user.realm" the name of the realm that authenticated "user.name"
+# "user.run_by.realm" the realm name of the impersonating subject ("user.run_by.name")
+# "user.run_as.realm" if this "event.action" is of a run_as type, this is the realm name the impersonated user is looked up from
+# "user.roles" the roles array of the user; these are the roles that are granting privileges
+# "origin.type" it is "rest" if the event is originating (is in relation to) a REST request; possible other values are "transport" and "ip_filter"
+# "origin.address" the remote address and port of the first network hop, i.e. a REST proxy or another cluster node
+# "realm" name of a realm that has generated an "authentication_failed" or an "authentication_successful"; the subject is not yet authenticated
+# "url.path" the URI component between the port and the query string; it is percent (URL) encoded
+# "url.query" the URI component after the path and before the fragment; it is percent (URL) encoded
+# "request.body" the content of the request body entity, JSON escaped
+# "action" an action is the most granular operation that is authorized and this identifies it in a namespaced way (internal)
+# "request.name" if the event is in connection to a transport message this is the name of the request class, similar to how rest requests are identified by the url path (internal)
+# "indices" the array of indices that the "action" is acting upon
+# "opaque_id" opaque value conveyed by the "X-Opaque-Id" request header
+# "transport.profile" name of the transport profile in case this is a "connection_granted" or "connection_denied" event
+# "rule" name of the applied rulee if the "origin.type" is "ip_filter"
+# "event.category" fixed value "elasticsearch-audit"
+
+appender.audit_rolling.filePattern = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_audit-%d{yyyy-MM-dd}.log
+appender.audit_rolling.policies.type = Policies
+appender.audit_rolling.policies.time.type = TimeBasedTriggeringPolicy
+appender.audit_rolling.policies.time.interval = 1
+appender.audit_rolling.policies.time.modulate = true
+
+appender.deprecated_audit_rolling.type = RollingFile
+appender.deprecated_audit_rolling.name = deprecated_audit_rolling
+appender.deprecated_audit_rolling.fileName = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_access.log
+appender.deprecated_audit_rolling.layout.type = PatternLayout
+appender.deprecated_audit_rolling.layout.pattern = [%d{ISO8601}] %m%n
+appender.deprecated_audit_rolling.filePattern = ${sys:es.logs.base_path}${sys:file.separator}${sys:es.logs.cluster_name}_access-%d{yyyy-MM-dd}.log
+appender.deprecated_audit_rolling.policies.type = Policies
+appender.deprecated_audit_rolling.policies.time.type = TimeBasedTriggeringPolicy
+appender.deprecated_audit_rolling.policies.time.interval = 1
+appender.deprecated_audit_rolling.policies.time.modulate = true
+
+logger.xpack_security_audit_logfile.name = org.elasticsearch.xpack.security.audit.logfile.LoggingAuditTrail
+logger.xpack_security_audit_logfile.level = info
+logger.xpack_security_audit_logfile.appenderRef.audit_rolling.ref = audit_rolling
+logger.xpack_security_audit_logfile.additivity = false
+
+logger.xpack_security_audit_deprecated_logfile.name = org.elasticsearch.xpack.security.audit.logfile.DeprecatedLoggingAuditTrail
+# set this to "off" instead of "info" to disable the deprecated appender
+# in the 6.x releases both the new and the previous appenders are enabled
+# for the logfile auditing
+logger.xpack_security_audit_deprecated_logfile.level = info
+logger.xpack_security_audit_deprecated_logfile.appenderRef.deprecated_audit_rolling.ref = deprecated_audit_rolling
+logger.xpack_security_audit_deprecated_logfile.additivity = false
+
+logger.xmlsig.name = org.apache.xml.security.signature.XMLSignature
+logger.xmlsig.level = error
+logger.samlxml_decrypt.name = org.opensaml.xmlsec.encryption.support.Decrypter
+logger.samlxml_decrypt.level = fatal
+logger.saml2_decrypt.name = org.opensaml.saml.saml2.encryption.Decrypter
+logger.saml2_decrypt.level = fatal
diff --git a/roles/graylog/defaults/main.yml b/roles/graylog/defaults/main.yml
new file mode 100644
index 0000000..8064e19
--- /dev/null
+++ b/roles/graylog/defaults/main.yml
@@ -0,0 +1,6 @@
+graylog_server_host: '{{ ansible_fqdn }}'
+graylog_server_url: https://{{ graylog_server_host }}/
+graylog_memory: 1g
+graylog_email_from: graylog@{{ ansible_domain }}
+graylog_use_syslog: true
+graylog_use_syslog_tls: true
diff --git a/roles/graylog/files/graylog-server-capabilities.systemd.conf b/roles/graylog/files/graylog-server-capabilities.systemd.conf
new file mode 100644
index 0000000..32b93fb
--- /dev/null
+++ b/roles/graylog/files/graylog-server-capabilities.systemd.conf
@@ -0,0 +1,3 @@
+[Service]
+# Allow graylog-server to bind to the privileged Syslog UDP port
+AmbientCapabilities=CAP_NET_BIND_SERVICE
diff --git a/roles/graylog/handlers/main.yml b/roles/graylog/handlers/main.yml
new file mode 100644
index 0000000..cc980a9
--- /dev/null
+++ b/roles/graylog/handlers/main.yml
@@ -0,0 +1,12 @@
+- name: save firewalld configuration
+  command: firewall-cmd --runtime-to-permanent
+- name: reload systemd
+  command: systemctl daemon-reload
+- name: restart graylog
+  service:
+    name=graylog-server
+    state=restarted
+- name: reload httpd
+  service:
+    name=httpd
+    state=reloaded
diff --git a/roles/graylog/tasks/main.yml b/roles/graylog/tasks/main.yml
new file mode 100644
index 0000000..4db4c93
--- /dev/null
+++ b/roles/graylog/tasks/main.yml
@@ -0,0 +1,101 @@
+- name: ensure graylog repository is available
+  package:
+    name=https://packages.graylog2.org/repo/packages/graylog-3.1-repository_latest.rpm
+    state=present
+  tags:
+  - install
+
+- name: ensure graylog is installed
+  package:
+    name:
+    - java-1.8.0-openjdk-headless
+    - graylog-server
+    state: present
+  tags:
+  - install
+
+- name: ensure graylog-server systemd unit drop-in directory is present
+  file:
+    path: /etc/systemd/system/graylog-server.service.d
+    mode: '0755'
+    state: directory
+- name: ensure graylog-server systemd unit capabilities are configured
+  copy:
+    src: graylog-server-capabilities.systemd.conf
+    dest: /etc/systemd/system/graylog-server.service.d/capabilities.conf
+    mode: '0644'
+  notify:
+  - reload systemd
+  - restart graylog
+- name: ensure graylog service is configured
+  template:
+    src=graylog-server.sysconfig.j2
+    dest=/etc/sysconfig/graylog-server
+    mode=0644
+  notify: restart graylog
+
+- name: ensure graylog server is configured
+  template:
+    src=server.conf.j2
+    dest=/etc/graylog/server/server.conf
+    owner=root
+    group=graylog
+    mode=640
+  notify: restart graylog
+
+- name: ensure syslog tls server certificate is installed
+  copy:
+    src={{ item }}
+    dest=/etc/graylog/syslog-tls.cer
+    owner=root
+    group=graylog
+    mode=0640
+  with_fileglob: files/{{ inventory_hostname }}.cer
+# The private key file must be in PKCS#8 format, not the more common PKCS#1
+- name: ensure syslog tls server private key is installed
+  copy:
+    src={{ item }}
+    dest=/etc/graylog/syslog-tls.key
+    owner=root
+    group=graylog
+    mode=0640
+  with_fileglob: files/{{ inventory_hostname }}.key
+- name: ensure syslog tls ca certificate is installed
+  copy:
+    src={{ item }}
+    dest=/etc/graylog/syslog-tls-ca.crt
+    owner=root
+    group=graylog
+    mode=0640
+  with_fileglob: files/{{ inventory_hostname }}_ca.crt
+
+- name: ensure firewall is configured for syslog
+  firewalld:
+    service: '{{ item.service }}'
+    permanent: false
+    immediate: true
+    state: '{{ item.state }}'
+  notify: save firewalld configuration
+  with_items:
+  - service: syslog
+    state: '{{ "enabled" if graylog_use_syslog else "disabled" }}'
+  - service: syslog-tls
+    state: '{{ "enabled" if graylog_use_syslog_tls else "disabled" }}'
+
+- name: ensure apache is allowed to proxy
+  seboolean:
+    name=httpd_can_network_connect
+    persistent=yes
+    state=yes
+
+- name: ensure apache is configured to proxy for graylog
+  template:
+    src=graylog.httpd.conf.j2
+    dest=/etc/httpd/conf.d/graylog.conf
+    mode=0644
+  notify: reload httpd
+
+- name: ensure graylog starts at boot
+  service:
+    name=graylog-server
+    enabled=yes
diff --git a/roles/graylog/templates/graylog-server.sysconfig.j2 b/roles/graylog/templates/graylog-server.sysconfig.j2
new file mode 100644
index 0000000..1f2cf0b
--- /dev/null
+++ b/roles/graylog/templates/graylog-server.sysconfig.j2
@@ -0,0 +1,12 @@
+# Path to the java executable.
+JAVA=/usr/bin/java
+
+# Default Java options for heap and garbage collection.
+GRAYLOG_SERVER_JAVA_OPTS="-Xms{{ graylog_memory }} -Xmx{{graylog_memory }} -XX:NewRatio=1 -server -XX:+ResizeTLAB -XX:+UseConcMarkSweepGC -XX:+CMSConcurrentMTEnabled -XX:+CMSClassUnloadingEnabled -XX:+UseParNewGC -XX:-OmitStackTraceInFastThrow -Djavax.net.ssl.trustStore=/etc/pki/ca-trust/extracted/java/cacerts"
+
+# Pass some extra args to graylog-server. (i.e. "-d" to enable debug mode)
+GRAYLOG_SERVER_ARGS=""
+
+# Program that will be used to wrap the graylog-server command. Useful to
+# support programs like authbind.
+GRAYLOG_COMMAND_WRAPPER=""
diff --git a/roles/graylog/templates/graylog.httpd.conf.j2 b/roles/graylog/templates/graylog.httpd.conf.j2
new file mode 100644
index 0000000..fb72844
--- /dev/null
+++ b/roles/graylog/templates/graylog.httpd.conf.j2
@@ -0,0 +1,15 @@
+# vim: set ft=apache :
+
+RewriteEngine On
+RewriteCond %{HTTPS} !on
+RewriteRule /.* https://%{SERVER_NAME}$0 [R=301,L]
+
+ProxyRequests Off
+ProxyPass / http://localhost:9000/ nocanon
+ProxyPassReverse / http://localhost:9000/
+
+RequestHeader set X-Graylog-Server-URL {{ graylog_server_url }}
+
+<Location />
+	Require all granted
+</Location>
diff --git a/roles/graylog/templates/server.conf.j2 b/roles/graylog/templates/server.conf.j2
new file mode 100644
index 0000000..90a3445
--- /dev/null
+++ b/roles/graylog/templates/server.conf.j2
@@ -0,0 +1,651 @@
+############################
+# GRAYLOG CONFIGURATION FILE
+############################
+#
+# This is the Graylog configuration file. The file has to use ISO 8859-1/Latin-1 character encoding.
+# Characters that cannot be directly represented in this encoding can be written using Unicode escapes
+# as defined in https://docs.oracle.com/javase/specs/jls/se8/html/jls-3.html#jls-3.3, using the \u prefix.
+# For example, \u002c.
+#
+# * Entries are generally expected to be a single line of the form, one of the following:
+#
+# propertyName=propertyValue
+# propertyName:propertyValue
+#
+# * White space that appears between the property name and property value is ignored,
+#   so the following are equivalent:
+#
+# name=Stephen
+# name = Stephen
+#
+# * White space at the beginning of the line is also ignored.
+#
+# * Lines that start with the comment characters ! or # are ignored. Blank lines are also ignored.
+#
+# * The property value is generally terminated by the end of the line. White space following the
+#   property value is not ignored, and is treated as part of the property value.
+#
+# * A property value can span several lines if each line is terminated by a backslash (‘\’) character.
+#   For example:
+#
+# targetCities=\
+#         Detroit,\
+#         Chicago,\
+#         Los Angeles
+#
+#   This is equivalent to targetCities=Detroit,Chicago,Los Angeles (white space at the beginning of lines is ignored).
+#
+# * The characters newline, carriage return, and tab can be inserted with characters \n, \r, and \t, respectively.
+#
+# * The backslash character must be escaped as a double backslash. For example:
+#
+# path=c:\\docs\\doc1
+#
+
+# If you are running more than one instances of Graylog server you have to select one of these
+# instances as master. The master will perform some periodical tasks that non-masters won't perform.
+is_master = true
+
+# The auto-generated node ID will be stored in this file and read after restarts. It is a good idea
+# to use an absolute file path here if you are starting Graylog server from init scripts or similar.
+node_id_file = /etc/graylog/server/node-id
+
+# You MUST set a secret to secure/pepper the stored user passwords here. Use at least 64 characters.
+# Generate one by using for example: pwgen -N 1 -s 96
+password_secret = {{ graylog_password_secret }}
+
+# The default root user is named 'admin'
+#root_username = admin
+
+# You MUST specify a hash password for the root user (which you only need to initially set up the
+# system and in case you lose connectivity to your authentication backend)
+# This password cannot be changed using the API or via the web interface. If you need to change it,
+# modify it in this file.
+# Create one by using for example: echo -n yourpassword | shasum -a 256
+# and put the resulting hash value into the following line
+root_password_sha2 = {{ graylog_root_password }}
+
+# The email address of the root user.
+# Default is empty
+#root_email = ""
+
+# The time zone setting of the root user. See http://www.joda.org/joda-time/timezones.html for a list of valid time zones.
+# Default is UTC
+#root_timezone = UTC
+
+# Set the bin directory here (relative or absolute)
+# This directory contains binaries that are used by the Graylog server.
+# Default: bin
+bin_dir = /usr/share/graylog-server/bin
+
+# Set the data directory here (relative or absolute)
+# This directory is used to store Graylog server state.
+# Default: data
+data_dir = /var/lib/graylog-server
+
+# Set plugin directory here (relative or absolute)
+plugin_dir = /usr/share/graylog-server/plugin
+
+###############
+# HTTP settings
+###############
+
+#### HTTP bind address
+#
+# The network interface used by the Graylog HTTP interface.
+#
+# This network interface must be accessible by all Graylog nodes in the cluster and by all clients
+# using the Graylog web interface.
+#
+# If the port is omitted, Graylog will use port 9000 by default.
+#
+# Default: 127.0.0.1:9000
+http_bind_address = 127.0.0.1:9000
+#http_bind_address = [2001:db8::1]:9000
+
+#### HTTP publish URI
+#
+# The HTTP URI of this Graylog node which is used to communicate with the other Graylog nodes in the cluster and by all
+# clients using the Graylog web interface.
+#
+# The URI will be published in the cluster discovery APIs, so that other Graylog nodes will be able to find and connect to this Graylog node.
+#
+# This configuration setting has to be used if this Graylog node is available on another network interface than $http_bind_address,
+# for example if the machine has multiple network interfaces or is behind a NAT gateway.
+#
+# If $http_bind_address contains a wildcard IPv4 address (0.0.0.0), the first non-loopback IPv4 address of this machine will be used.
+# This configuration setting *must not* contain a wildcard address!
+#
+# Default: http://$http_bind_address/
+#http_publish_uri = http://192.168.1.1:9000/
+
+#### External Graylog URI
+#
+# The public URI of Graylog which will be used by the Graylog web interface to communicate with the Graylog REST API.
+#
+# The external Graylog URI usually has to be specified, if Graylog is running behind a reverse proxy or load-balancer
+# and it will be used to generate URLs addressing entities in the Graylog REST API (see $http_bind_address).
+#
+# When using Graylog Collector, this URI will be used to receive heartbeat messages and must be accessible for all collectors.
+#
+# This setting can be overriden on a per-request basis with the "X-Graylog-Server-URL" HTTP request header.
+#
+# Default: $http_publish_uri
+#http_external_uri =
+
+#### Enable CORS headers for HTTP interface
+#
+# This is necessary for JS-clients accessing the server directly.
+# If these are disabled, modern browsers will not be able to retrieve resources from the server.
+# This is enabled by default. Uncomment the next line to disable it.
+#http_enable_cors = false
+
+#### Enable GZIP support for HTTP interface
+#
+# This compresses API responses and therefore helps to reduce
+# overall round trip times. This is enabled by default. Uncomment the next line to disable it.
+#http_enable_gzip = false
+
+# The maximum size of the HTTP request headers in bytes.
+#http_max_header_size = 8192
+
+# The size of the thread pool used exclusively for serving the HTTP interface.
+#http_thread_pool_size = 16
+
+################
+# HTTPS settings
+################
+
+#### Enable HTTPS support for the HTTP interface
+#
+# This secures the communication with the HTTP interface with TLS to prevent request forgery and eavesdropping.
+#
+# Default: false
+#http_enable_tls = true
+
+# The X.509 certificate chain file in PEM format to use for securing the HTTP interface.
+#http_tls_cert_file = /path/to/graylog.crt
+
+# The PKCS#8 private key file in PEM format to use for securing the HTTP interface.
+#http_tls_key_file = /path/to/graylog.key
+
+# The password to unlock the private key used for securing the HTTP interface.
+#http_tls_key_password = secret
+
+
+# Comma separated list of trusted proxies that are allowed to set the client address with X-Forwarded-For
+# header. May be subnets, or hosts.
+trusted_proxies = 127.0.0.1/32, 0:0:0:0:0:0:0:1/128
+
+# List of Elasticsearch hosts Graylog should connect to.
+# Need to be specified as a comma-separated list of valid URIs for the http ports of your elasticsearch nodes.
+# If one or more of your elasticsearch hosts require authentication, include the credentials in each node URI that
+# requires authentication.
+#
+# Default: http://127.0.0.1:9200
+#elasticsearch_hosts = http://node1:9200,http://user:password@node2:19200
+
+# Maximum amount of time to wait for successfull connection to Elasticsearch HTTP port.
+#
+# Default: 10 Seconds
+#elasticsearch_connect_timeout = 10s
+
+# Maximum amount of time to wait for reading back a response from an Elasticsearch server.
+#
+# Default: 60 seconds
+#elasticsearch_socket_timeout = 60s
+
+# Maximum idle time for an Elasticsearch connection. If this is exceeded, this connection will
+# be tore down.
+#
+# Default: inf
+#elasticsearch_idle_timeout = -1s
+
+# Maximum number of total connections to Elasticsearch.
+#
+# Default: 20
+#elasticsearch_max_total_connections = 20
+
+# Maximum number of total connections per Elasticsearch route (normally this means per
+# elasticsearch server).
+#
+# Default: 2
+#elasticsearch_max_total_connections_per_route = 2
+
+# Maximum number of times Graylog will retry failed requests to Elasticsearch.
+#
+# Default: 2
+#elasticsearch_max_retries = 2
+
+# Enable automatic Elasticsearch node discovery through Nodes Info,
+# see https://www.elastic.co/guide/en/elasticsearch/reference/5.4/cluster-nodes-info.html
+#
+# WARNING: Automatic node discovery does not work if Elasticsearch requires authentication, e. g. with Shield.
+#
+# Default: false
+#elasticsearch_discovery_enabled = true
+
+# Filter for including/excluding Elasticsearch nodes in discovery according to their custom attributes,
+# see https://www.elastic.co/guide/en/elasticsearch/reference/5.4/cluster.html#cluster-nodes
+#
+# Default: empty
+#elasticsearch_discovery_filter = rack:42
+
+# Frequency of the Elasticsearch node discovery.
+#
+# Default: 30s
+# elasticsearch_discovery_frequency = 30s
+
+# Enable payload compression for Elasticsearch requests.
+#
+# Default: false
+#elasticsearch_compression_enabled = true
+
+# Graylog will use multiple indices to store documents in. You can configured the strategy it uses to determine
+# when to rotate the currently active write index.
+# It supports multiple rotation strategies:
+#   - "count" of messages per index, use elasticsearch_max_docs_per_index below to configure
+#   - "size" per index, use elasticsearch_max_size_per_index below to configure
+# valid values are "count", "size" and "time", default is "count"
+#
+# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
+#            to your previous 1.x settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+rotation_strategy = count
+
+# (Approximate) maximum number of documents in an Elasticsearch index before a new index
+# is being created, also see no_retention and elasticsearch_max_number_of_indices.
+# Configure this if you used 'rotation_strategy = count' above.
+#
+# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
+#            to your previous 1.x settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+elasticsearch_max_docs_per_index = 20000000
+
+# (Approximate) maximum size in bytes per Elasticsearch index on disk before a new index is being created, also see
+# no_retention and elasticsearch_max_number_of_indices. Default is 1GB.
+# Configure this if you used 'rotation_strategy = size' above.
+#
+# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
+#            to your previous 1.x settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+#elasticsearch_max_size_per_index = 1073741824
+
+# (Approximate) maximum time before a new Elasticsearch index is being created, also see
+# no_retention and elasticsearch_max_number_of_indices. Default is 1 day.
+# Configure this if you used 'rotation_strategy = time' above.
+# Please note that this rotation period does not look at the time specified in the received messages, but is
+# using the real clock value to decide when to rotate the index!
+# Specify the time using a duration and a suffix indicating which unit you want:
+#  1w  = 1 week
+#  1d  = 1 day
+#  12h = 12 hours
+# Permitted suffixes are: d for day, h for hour, m for minute, s for second.
+#
+# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
+#            to your previous 1.x settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+#elasticsearch_max_time_per_index = 1d
+
+# Disable checking the version of Elasticsearch for being compatible with this Graylog release.
+# WARNING: Using Graylog with unsupported and untested versions of Elasticsearch may lead to data loss!
+#elasticsearch_disable_version_check = true
+
+# Disable message retention on this node, i. e. disable Elasticsearch index rotation.
+#no_retention = false
+
+# How many indices do you want to keep?
+#
+# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
+#            to your previous 1.x settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+elasticsearch_max_number_of_indices = 20
+
+# Decide what happens with the oldest indices when the maximum number of indices is reached.
+# The following strategies are availble:
+#   - delete # Deletes the index completely (Default)
+#   - close # Closes the index and hides it from the system. Can be re-opened later.
+#
+# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
+#            to your previous 1.x settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+retention_strategy = delete
+
+# How many Elasticsearch shards and replicas should be used per index? Note that this only applies to newly created indices.
+# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
+#            to your previous settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+elasticsearch_shards = 4
+elasticsearch_replicas = 0
+
+# Prefix for all Elasticsearch indices and index aliases managed by Graylog.
+#
+# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
+#            to your previous settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+elasticsearch_index_prefix = graylog
+
+# Name of the Elasticsearch index template used by Graylog to apply the mandatory index mapping.
+# Default: graylog-internal
+#
+# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
+#            to your previous settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+#elasticsearch_template_name = graylog-internal
+
+# Do you want to allow searches with leading wildcards? This can be extremely resource hungry and should only
+# be enabled with care. See also: http://docs.graylog.org/en/2.1/pages/queries.html
+allow_leading_wildcard_searches = false
+
+# Do you want to allow searches to be highlighted? Depending on the size of your messages this can be memory hungry and
+# should only be enabled after making sure your Elasticsearch cluster has enough memory.
+allow_highlighting = false
+
+# Analyzer (tokenizer) to use for message and full_message field. The "standard" filter usually is a good idea.
+# All supported analyzers are: standard, simple, whitespace, stop, keyword, pattern, language, snowball, custom
+# Elasticsearch documentation: https://www.elastic.co/guide/en/elasticsearch/reference/2.3/analysis.html
+# Note that this setting only takes effect on newly created indices.
+#
+# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
+#            to your previous settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+elasticsearch_analyzer = standard
+
+# Global request timeout for Elasticsearch requests (e. g. during search, index creation, or index time-range
+# calculations) based on a best-effort to restrict the runtime of Elasticsearch operations.
+# Default: 1m
+#elasticsearch_request_timeout = 1m
+
+# Global timeout for index optimization (force merge) requests.
+# Default: 1h
+#elasticsearch_index_optimization_timeout = 1h
+
+# Maximum number of concurrently running index optimization (force merge) jobs.
+# If you are using lots of different index sets, you might want to increase that number.
+# Default: 20
+#elasticsearch_index_optimization_jobs = 20
+
+# Time interval for index range information cleanups. This setting defines how often stale index range information
+# is being purged from the database.
+# Default: 1h
+#index_ranges_cleanup_interval = 1h
+
+# Time interval for the job that runs index field type maintenance tasks like cleaning up stale entries. This doesn't
+# need to run very often.
+# Default: 1h
+#index_field_type_periodical_interval = 1h
+
+# Batch size for the Elasticsearch output. This is the maximum (!) number of messages the Elasticsearch output
+# module will get at once and write to Elasticsearch in a batch call. If the configured batch size has not been
+# reached within output_flush_interval seconds, everything that is available will be flushed at once. Remember
+# that every outputbuffer processor manages its own batch and performs its own batch write calls.
+# ("outputbuffer_processors" variable)
+output_batch_size = 500
+
+# Flush interval (in seconds) for the Elasticsearch output. This is the maximum amount of time between two
+# batches of messages written to Elasticsearch. It is only effective at all if your minimum number of messages
+# for this time period is less than output_batch_size * outputbuffer_processors.
+output_flush_interval = 1
+
+# As stream outputs are loaded only on demand, an output which is failing to initialize will be tried over and
+# over again. To prevent this, the following configuration options define after how many faults an output will
+# not be tried again for an also configurable amount of seconds.
+output_fault_count_threshold = 5
+output_fault_penalty_seconds = 30
+
+# The number of parallel running processors.
+# Raise this number if your buffers are filling up.
+processbuffer_processors = 5
+outputbuffer_processors = 3
+
+# The following settings (outputbuffer_processor_*) configure the thread pools backing each output buffer processor.
+# See https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html for technical details
+
+# When the number of threads is greater than the core (see outputbuffer_processor_threads_core_pool_size),
+# this is the maximum time in milliseconds that excess idle threads will wait for new tasks before terminating.
+# Default: 5000
+#outputbuffer_processor_keep_alive_time = 5000
+
+# The number of threads to keep in the pool, even if they are idle, unless allowCoreThreadTimeOut is set
+# Default: 3
+#outputbuffer_processor_threads_core_pool_size = 3
+
+# The maximum number of threads to allow in the pool
+# Default: 30
+#outputbuffer_processor_threads_max_pool_size = 30
+
+# UDP receive buffer size for all message inputs (e. g. SyslogUDPInput).
+#udp_recvbuffer_sizes = 1048576
+
+# Wait strategy describing how buffer processors wait on a cursor sequence. (default: sleeping)
+# Possible types:
+#  - yielding
+#     Compromise between performance and CPU usage.
+#  - sleeping
+#     Compromise between performance and CPU usage. Latency spikes can occur after quiet periods.
+#  - blocking
+#     High throughput, low latency, higher CPU usage.
+#  - busy_spinning
+#     Avoids syscalls which could introduce latency jitter. Best when threads can be bound to specific CPU cores.
+processor_wait_strategy = blocking
+
+# Size of internal ring buffers. Raise this if raising outputbuffer_processors does not help anymore.
+# For optimum performance your LogMessage objects in the ring buffer should fit in your CPU L3 cache.
+# Must be a power of 2. (512, 1024, 2048, ...)
+ring_size = 65536
+
+inputbuffer_ring_size = 65536
+inputbuffer_processors = 2
+inputbuffer_wait_strategy = blocking
+
+# Enable the disk based message journal.
+message_journal_enabled = true
+
+# The directory which will be used to store the message journal. The directory must be exclusively used by Graylog and
+# must not contain any other files than the ones created by Graylog itself.
+#
+# ATTENTION:
+#   If you create a seperate partition for the journal files and use a file system creating directories like 'lost+found'
+#   in the root directory, you need to create a sub directory for your journal.
+#   Otherwise Graylog will log an error message that the journal is corrupt and Graylog will not start.
+message_journal_dir = /var/lib/graylog-server/journal
+
+# Journal hold messages before they could be written to Elasticsearch.
+# For a maximum of 12 hours or 5 GB whichever happens first.
+# During normal operation the journal will be smaller.
+#message_journal_max_age = 12h
+#message_journal_max_size = 5gb
+
+#message_journal_flush_age = 1m
+#message_journal_flush_interval = 1000000
+#message_journal_segment_age = 1h
+#message_journal_segment_size = 100mb
+
+# Number of threads used exclusively for dispatching internal events. Default is 2.
+#async_eventbus_processors = 2
+
+# How many seconds to wait between marking node as DEAD for possible load balancers and starting the actual
+# shutdown process. Set to 0 if you have no status checking load balancers in front.
+lb_recognition_period_seconds = 3
+
+# Journal usage percentage that triggers requesting throttling for this server node from load balancers. The feature is
+# disabled if not set.
+#lb_throttle_threshold_percentage = 95
+
+# Every message is matched against the configured streams and it can happen that a stream contains rules which
+# take an unusual amount of time to run, for example if its using regular expressions that perform excessive backtracking.
+# This will impact the processing of the entire server. To keep such misbehaving stream rules from impacting other
+# streams, Graylog limits the execution time for each stream.
+# The default values are noted below, the timeout is in milliseconds.
+# If the stream matching for one stream took longer than the timeout value, and this happened more than "max_faults" times
+# that stream is disabled and a notification is shown in the web interface.
+#stream_processing_timeout = 2000
+#stream_processing_max_faults = 3
+
+# Since 0.21 the Graylog server supports pluggable output modules. This means a single message can be written to multiple
+# outputs. The next setting defines the timeout for a single output module, including the default output module where all
+# messages end up.
+#
+# Time in milliseconds to wait for all message outputs to finish writing a single message.
+#output_module_timeout = 10000
+
+# Time in milliseconds after which a detected stale master node is being rechecked on startup.
+#stale_master_timeout = 2000
+
+# Time in milliseconds which Graylog is waiting for all threads to stop on shutdown.
+#shutdown_timeout = 30000
+
+# MongoDB connection string
+# See https://docs.mongodb.com/manual/reference/connection-string/ for details
+mongodb_uri = mongodb://localhost/graylog
+
+# Authenticate against the MongoDB server
+# '+'-signs in the username or password need to be replaced by '%2B'
+#mongodb_uri = mongodb://grayloguser:secret@localhost:27017/graylog
+
+# Use a replica set instead of a single host
+#mongodb_uri = mongodb://grayloguser:secret@localhost:27017,localhost:27018,localhost:27019/graylog
+
+# Increase this value according to the maximum connections your MongoDB server can handle from a single client
+# if you encounter MongoDB connection problems.
+mongodb_max_connections = 1000
+
+# Number of threads allowed to be blocked by MongoDB connections multiplier. Default: 5
+# If mongodb_max_connections is 100, and mongodb_threads_allowed_to_block_multiplier is 5,
+# then 500 threads can block. More than that and an exception will be thrown.
+# http://api.mongodb.com/java/current/com/mongodb/MongoOptions.html#threadsAllowedToBlockForConnectionMultiplier
+mongodb_threads_allowed_to_block_multiplier = 5
+
+
+# Email transport
+transport_email_enabled = true
+transport_email_hostname = localhost
+#transport_email_port = 587
+transport_email_use_auth = false
+#transport_email_auth_username = you@example.com
+#transport_email_auth_password = secret
+#transport_email_subject_prefix = [graylog]
+transport_email_from_email = {{ graylog_email_from }}
+
+
+# Encryption settings
+#
+# ATTENTION:
+#    Using SMTP with STARTTLS *and* SMTPS at the same time is *not* possible.
+
+# Use SMTP with STARTTLS, see https://en.wikipedia.org/wiki/Opportunistic_TLS
+transport_email_use_tls = false
+
+# Use SMTP over SSL (SMTPS), see https://en.wikipedia.org/wiki/SMTPS
+# This is deprecated on most SMTP services!
+transport_email_use_ssl = false
+
+
+# Specify and uncomment this if you want to include links to the stream in your stream alert mails.
+# This should define the fully qualified base url to your web interface exactly the same way as it is accessed by your users.
+#transport_email_web_interface_url = https://graylog.example.com
+
+# The default connect timeout for outgoing HTTP connections.
+# Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds).
+# Default: 5s
+#http_connect_timeout = 5s
+
+# The default read timeout for outgoing HTTP connections.
+# Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds).
+# Default: 10s
+#http_read_timeout = 10s
+
+# The default write timeout for outgoing HTTP connections.
+# Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds).
+# Default: 10s
+#http_write_timeout = 10s
+
+# HTTP proxy for outgoing HTTP connections
+# ATTENTION: If you configure a proxy, make sure to also configure the "http_non_proxy_hosts" option so internal
+#            HTTP connections with other nodes does not go through the proxy.
+# Examples:
+#   - http://proxy.example.com:8123
+#   - http://username:password@proxy.example.com:8123
+#http_proxy_uri =
+
+# A list of hosts that should be reached directly, bypassing the configured proxy server.
+# This is a list of patterns separated by ",". The patterns may start or end with a "*" for wildcards.
+# Any host matching one of these patterns will be reached through a direct connection instead of through a proxy.
+# Examples:
+#   - localhost,127.0.0.1
+#   - 10.0.*,*.example.com
+#http_non_proxy_hosts =
+
+# Disable the optimization of Elasticsearch indices after index cycling. This may take some load from Elasticsearch
+# on heavily used systems with large indices, but it will decrease search performance. The default is to optimize
+# cycled indices.
+#
+# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
+#            to your previous settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+#disable_index_optimization = true
+
+# Optimize the index down to <= index_optimization_max_num_segments. A higher number may take some load from Elasticsearch
+# on heavily used systems with large indices, but it will decrease search performance. The default is 1.
+#
+# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
+#            to your previous settings so they will be migrated to the database!
+#            This configuration setting is only used on the first start of Graylog. After that,
+#            index related settings can be changed in the Graylog web interface on the 'System / Indices' page.
+#            Also see http://docs.graylog.org/en/2.3/pages/configuration/index_model.html#index-set-configuration.
+#index_optimization_max_num_segments = 1
+
+# The threshold of the garbage collection runs. If GC runs take longer than this threshold, a system notification
+# will be generated to warn the administrator about possible problems with the system. Default is 1 second.
+#gc_warning_threshold = 1s
+
+# Connection timeout for a configured LDAP server (e. g. ActiveDirectory) in milliseconds.
+#ldap_connection_timeout = 2000
+
+# Disable the use of SIGAR for collecting system stats
+#disable_sigar = false
+
+# The default cache time for dashboard widgets. (Default: 10 seconds, minimum: 1 second)
+#dashboard_widget_default_cache_time = 10s
+
+# For some cluster-related REST requests, the node must query all other nodes in the cluster. This is the maximum number
+# of threads available for this. Increase it, if '/cluster/*' requests take long to complete.
+# Should be http_thread_pool_size * average_cluster_size if you have a high number of concurrent users.
+proxied_requests_thread_pool_size = 32
+
+# The server is writing processing status information to the database on a regular basis. This setting controls how
+# often the data is written to the database.
+# Default: 1s (cannot be less than 1s)
+#processing_status_persist_interval = 1s
+
+# Configures the threshold for detecting outdated processing status records. Any records that haven't been updated
+# in the configured threshold will be ignored.
+# Default: 1m (one minute)
+#processing_status_update_threshold = 1m
+
+# Configures the journal write rate threshold for selecting processing status records. Any records that have a lower
+# one minute rate than the configured value might be ignored. (dependent on number of messages in the journal)
+# Default: 1
+#processing_status_journal_write_rate_threshold = 1
diff --git a/roles/mongodb/defaults/main.yml b/roles/mongodb/defaults/main.yml
new file mode 100644
index 0000000..eef9c76
--- /dev/null
+++ b/roles/mongodb/defaults/main.yml
@@ -0,0 +1 @@
+mongodb_version: '4.0'
diff --git a/roles/mongodb/tasks/main.yml b/roles/mongodb/tasks/main.yml
new file mode 100644
index 0000000..eaf8e87
--- /dev/null
+++ b/roles/mongodb/tasks/main.yml
@@ -0,0 +1,18 @@
+- name: ensure mongodb package repository is available
+  template:
+    src=mongodb.repo.j2
+    dest=/etc/yum.repos.d/mongodb.repo
+    mode=0644
+  tags:
+  - install
+- name: ensure mongodb is installed
+  package:
+    name: mongodb-org-server
+    state: present
+  tags:
+  - install
+
+- name: ensure mongodb server starts at boot
+  service:
+    name=mongod
+    enabled=yes
diff --git a/roles/mongodb/templates/mongodb.repo.j2 b/roles/mongodb/templates/mongodb.repo.j2
new file mode 100644
index 0000000..1dd256e
--- /dev/null
+++ b/roles/mongodb/templates/mongodb.repo.j2
@@ -0,0 +1,6 @@
+[mongodb-org-{{ mongodb_version }}]
+name=MongoDB Repository
+baseurl=https://repo.mongodb.org/yum/redhat/7/mongodb-org/{{ mongodb_version }}/x86_64/
+gpgcheck=1
+enabled=1
+gpgkey=https://www.mongodb.org/static/pgp/server-{{ mongodb_version }}.asc
diff --git a/roles/ssh-hostkeys/files/ssh_known_hosts b/roles/ssh-hostkeys/files/ssh_known_hosts
index 6576f90..55882aa 100644
--- a/roles/ssh-hostkeys/files/ssh_known_hosts
+++ b/roles/ssh-hostkeys/files/ssh_known_hosts
@@ -61,6 +61,9 @@ jenkins0.pyrocufflink.blue ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDibSJk2uGXl+Xtv
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+logs0.pyrocufflink.blue ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBI44nMZrVNHCRbkofKb20d6zk8Kemznedlt7ztsevODeF7nVryLthNSeQETNQhzKgguUYAs6bAP4Lbs3P1liLO8=
+logs0.pyrocufflink.blue ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEUGTwxui3nq1UD4ypNBbgITW3J97hlGIKM3tT/Ul2sq
+logs0.pyrocufflink.blue ssh-rsa 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 proxy0.pyrocufflink.blue ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDNv1c4zTK1ccZr/P7CSMJCryGqoDwehGRPQLJOj07WA5lEPUWtpLRYxFUv7WrMkgIbphjiaOmZdC48tOoPUo4h89qWc8Qkv0NBbFqYsfpYSZGwuTCdR0mYB5c3D+O2E4kA80iw/Ba6mQZGOkmQ1W55tB0VC0w+zf2Z+4bsbHqn7/fYcYyyzNPRtl5etwrQ0XtVjOPdphv6fEypPbZMgpHhHlH24rLfs8lEnQNzU6eGuBoeSG2TQmC3cqp2zOH04s5XPbHgBVCJpTBwfWfKLN4t52YfI7WBpBpjzbhfeX13/9Ji3lY2HfMCq3jYQgoEVVTlg044vMM3azpFMAMjT9+R
diff --git a/vault/graylog/logs0.pyrocufflink.blue b/vault/graylog/logs0.pyrocufflink.blue
new file mode 100644
index 0000000..951d39d
--- /dev/null
+++ b/vault/graylog/logs0.pyrocufflink.blue
@@ -0,0 +1,20 @@
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