[COMMON] new logConfiguration chart

This new chart allows to set the same log level accross components in
ONAP.
As other similar templates, default value will be retrieved
(`logConfiguration.logLevel`) but can be overrided:

- globally by setting global.logLevel
- per component basis by setting `logConfiguration.logLevelOverride` per
  component basis

Issue-ID: OOM-2515
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I18196b56bb4f8732d42271d7c93c1a0f71bfac58

1 files changed, 41 insertions, 0 deletions

diff --git a/kubernetes/common/logConfiguration/templates/_log.tpl b/kubernetes/common/logConfiguration/templates/_log.tpl
new file mode 100644
index 0000000000..bf19f210e4
--- /dev/null
+++ b/kubernetes/common/logConfiguration/templates/_log.tpl
@@ -0,0 +1,41 @@
+{{/*
+# Copyright © 2020 Orange
+#
+# 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.
+*/}}
+
+{{/*
+  Resolve the level of the logs.
+  The value for .Values.logLevel is used by default,
+  unless either override mechanism is used.
+
+  - .Values.global.logLevel  : override default log level for all components
+  - .Values.logLevelOverride : override global and default log level on a per
+                               component basis
+
+  The function can takes below arguments (inside a dictionary):
+     - .dot : environment (.)
+     - .initRoot : the root dictionary of logConfiguration submodule
+                   (default to .Values.logConfiguration)
+*/}}
+{{- define "common.log.level" -}}
+{{-   $dot := default . .dot -}}
+{{-   $initRoot := default $dot.Values.logConfiguration .initRoot -}}
+{{/*  Our version of helm doesn't support deepCopy so we need this nasty trick */}}
+{{-   $subchartDot := fromJson (include "common.subChartDot" (dict "dot" $dot "initRoot" $initRoot)) }}
+  {{- if $subchartDot.Values.logLevelOverride }}
+    {{- printf "%s" $subchartDot.Values.logLevelOverride -}}
+  {{- else }}
+    {{- default $subchartDot.Values.logLevel $subchartDot.Values.global.logLevel -}}
+  {{- end }}
+{{- end -}}