Libvirt: move configuration to be generated directly from values

This PS moves the configuration files used by libvirt to be
generated directly from the values, rather than being templated.

Change-Id: I8ab2783c9d1d5d815cc02eccafa21058ff3acead

helm-toolkit/templates/utils/_to_kv_list.tpl

@@ -14,9 +14,12 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */}}
 
-listen_tcp = 1
-auth_tcp = "none"
-ca_file = ""
-log_level = {{ .Values.conf.libvirt.log_level }}
-log_outputs = "{{ .Values.conf.libvirt.log_level }}:stderr"
-listen_addr = "{{ .Values.conf.libvirt.listen_addr }}"
+{{- define "helm-toolkit.utils.to_kv_list" -}}
+{{- range $key, $value :=  . -}}
+{{- if regexMatch "^[0-9]+$" $value }}
+{{ $key }} = {{ $value }}
+{{- else }}
+{{ $key }} = {{ $value | quote }}
+{{- end }}
+{{- end -}}
+{{- end -}}

libvirt/templates/configmap-etc.yaml

@@ -23,7 +23,7 @@ metadata:
   name: libvirt-etc
 data:
   libvirtd.conf: |+
-{{ tuple "etc/_libvirtd.conf.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
+{{- include "helm-toolkit.utils.to_kv_list" .Values.conf.libvirt | indent 4 }}
   qemu.conf: |+
-{{ tuple "etc/_qemu.conf.tpl" . | include "helm-toolkit.utils.template" | indent 4 }}
+{{- include "helm-toolkit.utils.to_kv_list" .Values.conf.qemu | indent 4 }}
 {{- end }}

libvirt/templates/etc/_qemu.conf.tpl

@@ -1,32 +0,0 @@
-{{/*
-Copyright 2017 The Openstack-Helm Authors.
-
-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.
-*/}}
-
-# The backend to use for handling stdout/stderr output from
-# QEMU processes.
-#
-#  'file': QEMU writes directly to a plain file. This is the
-#          historical default, but allows QEMU to inflict a
-#          denial of service attack on the host by exhausting
-#          filesystem space
-#
-#  'logd': QEMU writes to a pipe provided by virtlogd daemon.
-#          This is the current default, providing protection
-#          against denial of service by performing log file
-#          rollover when a size limit is hit.
-#
-stdio_handler = "file"
-{{ if not .Values.conf.qemu.user }}#{{ end }}user = {{ .Values.conf.qemu.user | default "nova" | quote }}
-{{ if not .Values.conf.qemu.group }}#{{ end }}group = {{ .Values.conf.qemu.group | default "kvm" | quote }}

libvirt/values.yaml

@@ -40,9 +40,13 @@ ceph:
 
 conf:
   libvirt:
+    listen_tcp: "1"
+    auth_tcp: "none"
+    ca_file: ""
     listen_addr: 0.0.0.0
-    log_level: 3
+    log_level: "3"
   qemu:
+    stdio_handler: "file"
     user: "nova"
     group: "kvm"