Add support for custom files. (#12773)

Signed-off-by: Michael Lorant <mikel@mlvision.com.au>

stable/logstash/Chart.yaml

@@ -3,7 +3,7 @@ description: Logstash is an open source, server-side data processing pipeline
 icon: https://www.elastic.co/assets/blt86e4472872eed314/logo-elastic-logstash-lt.svg
 home: https://www.elastic.co/products/logstash
 name: logstash
-version: 1.6.0
+version: 1.7.0
 appVersion: 6.7.0
 sources:
 - https://www.docker.elastic.co

stable/logstash/README.md

@@ -112,6 +112,7 @@ The following table lists the configurable parameters of the chart and its defau
 | `elasticsearch.port`            | ElasticSearch port                                 | `9200`                                           |
 | `config`                        | Logstash configuration key-values                  | (see `values.yaml`)                              |
 | `patterns`                      | Logstash patterns configuration                    | `nil`                                            |
+| `files`                         | Logstash custom files configuration                | `nil`                                            |
 | `inputs`                        | Logstash inputs configuration                      | beats                                            |
 | `filters`                       | Logstash filters configuration                     | `nil`                                            |
 | `outputs`                       | Logstash outputs configuration                     | elasticsearch                                    |

stable/logstash/templates/files-config.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "logstash.fullname" . }}-files
+  labels:
+    app: {{ template "logstash.name" . }}
+    chart: {{ template "logstash.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+data:
+{{- range $key, $value := .Values.files }}
+  {{ $key }}: |-
+{{ $value | indent 4 }}
+{{- end }}

stable/logstash/templates/statefulset.yaml

@@ -27,6 +27,7 @@ spec:
       {{- end }}
       annotations:
         checksum/patterns: {{ include (print $.Template.BasePath "/patterns-config.yaml") . | sha256sum }}
+        checksum/templates: {{ include (print $.Template.BasePath "/files-config.yaml") . | sha256sum }}
         checksum/pipeline: {{ include (print $.Template.BasePath "/pipeline-config.yaml") . | sha256sum }}
       {{- if .Values.podAnnotations }}
         ## Custom pod annotations
@@ -130,6 +131,9 @@ spec:
         - name: patterns
           configMap:
             name: {{ template "logstash.fullname" . }}-patterns
+        - name: files
+          configMap:
+            name: {{ template "logstash.fullname" . }}-files
         - name: pipeline
           configMap:
             name: {{ template "logstash.fullname" . }}-pipeline

stable/logstash/values.yaml

@@ -150,6 +150,8 @@ volumeMounts:
     mountPath: /usr/share/logstash/data
   - name: patterns
     mountPath: /usr/share/logstash/patterns
+  - name: files
+    mountPath: /usr/share/logstash/files
   - name: pipeline
     mountPath: /usr/share/logstash/pipeline
 
@@ -217,6 +219,33 @@ patterns:
   # main: |-
   #   TESTING {"foo":.*}$
 
+## Custom files that can be referenced by plugins.
+## Each YAML heredoc will become located in the logstash home directory under
+## the files subdirectory.
+files:
+  # logstash-template.json: |-
+  #   {
+  #     "order": 0,
+  #     "version": 1,
+  #     "index_patterns": [
+  #       "logstash-*"
+  #     ],
+  #     "settings": {
+  #       "index": {
+  #         "refresh_interval": "5s"
+  #       }
+  #     },
+  #     "mappings": {
+  #       "doc": {
+  #         "_meta": {
+  #           "version": "1.0.0"
+  #         },
+  #         "enabled": false
+  #       }
+  #     },
+  #     "aliases": {}
+  #   }
+
 ## NOTE: To achieve multiple pipelines with this chart, current best practice
 ## is to maintain one pipeline per chart release. In this way configuration is
 ## simplified and pipelines are more isolated from one another.