songgongjun d74e937726 Make more sections in daemonset overridable.
The work of enable dpdk in starlingx needs to achieve the overrides
of parameters such as images, tags, labels, and pods. This function
is being implemented through the support of ovs per-host overrides.
In order to transfer the parameters such as images after overrides
to the daemonset file to achieve the corresponding functions, the
functions of overrides need to be upgraded. Move the $daemonset_yaml
parameter in the daemonset file to the overrides file, so that
daemonset file uses parameters after overrides.This patch and
https://review.opendev.org/#/c/707775/ depend on each other.

Change-Id: I210e54b28e32ba1b8e281659fee8e6eda38d79d0
Story: 2007291
Task: 38754
Depends-on: https://review.opendev.org/#/c/708894/
Signed-off-by: songgongjun <gongjun.song@intel.com>
2020-03-03 05:28:53 +00:00

274 lines
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{{/*
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.
*/}}
{{- define "helm-toolkit.utils.daemonset_overrides" }}
{{- $daemonset := index . 0 }}
{{- $daemonset_include := index . 1 }}
{{- $configmap_include := index . 2 }}
{{- $configmap_name := index . 3 }}
{{- $context := index . 4 }}
{{- $serviceAccountName := index . 5 }}
{{- $_ := unset $context ".Files" }}
{{- $daemonset_root_name := printf (print $context.Chart.Name "_" $daemonset) }}
{{- $_ := set $context.Values "__daemonset_list" list }}
{{- $_ := set $context.Values "__default" dict }}
{{- if hasKey $context.Values.conf "overrides" }}
{{- range $key, $val := $context.Values.conf.overrides }}
{{- if eq $key $daemonset_root_name }}
{{- range $type, $type_data := . }}
{{- if eq $type "hosts" }}
{{- range $host_data := . }}
{{/* dictionary that will contain all info needed to generate this
iteration of the daemonset */}}
{{- $current_dict := dict }}
{{/* set daemonset name */}}
{{/* Note: long hostnames can cause the 63 char name limit to be
exceeded. Truncate the hostname if hostname > 20 char */}}
{{- if gt (len $host_data.name) 20 }}
{{- $_ := set $current_dict "name" (substr 0 20 $host_data.name) }}
{{- else }}
{{- $_ := set $current_dict "name" $host_data.name }}
{{- end }}
{{/* apply overrides */}}
{{- $override_conf_copy := $host_data.conf }}
{{/* Deep copy to prevent https://storyboard.openstack.org/#!/story/2005936 */}}
{{- $root_conf_copy := omit ($context.Values.conf | toYaml | fromYaml) "overrides" }}
{{- $merged_dict := mergeOverwrite $root_conf_copy $override_conf_copy }}
{{- $root_conf_copy2 := dict "conf" $merged_dict }}
{{- $context_values := omit (omit ($context.Values | toYaml | fromYaml) "conf") "__daemonset_list" }}
{{- $root_conf_copy3 := mergeOverwrite $context_values $root_conf_copy2 }}
{{- $root_conf_copy4 := dict "Values" $root_conf_copy3 }}
{{- $_ := set $current_dict "nodeData" $root_conf_copy4 }}
{{/* Schedule to this host explicitly. */}}
{{- $nodeSelector_dict := dict }}
{{- $_ := set $nodeSelector_dict "key" "kubernetes.io/hostname" }}
{{- $_ := set $nodeSelector_dict "operator" "In" }}
{{- $values_list := list $host_data.name }}
{{- $_ := set $nodeSelector_dict "values" $values_list }}
{{- $list_aggregate := list $nodeSelector_dict }}
{{- $_ := set $current_dict "matchExpressions" $list_aggregate }}
{{/* store completed daemonset entry/info into global list */}}
{{- $list_aggregate := append $context.Values.__daemonset_list $current_dict }}
{{- $_ := set $context.Values "__daemonset_list" $list_aggregate }}
{{- end }}
{{- end }}
{{- if eq $type "labels" }}
{{- $_ := set $context.Values "__label_list" . }}
{{- range $label_data := . }}
{{/* dictionary that will contain all info needed to generate this
iteration of the daemonset. */}}
{{- $_ := set $context.Values "__current_label" dict }}
{{/* set daemonset name */}}
{{- $_ := set $context.Values.__current_label "name" $label_data.label.key }}
{{/* apply overrides */}}
{{- $override_conf_copy := $label_data.conf }}
{{/* Deep copy to prevent https://storyboard.openstack.org/#!/story/2005936 */}}
{{- $root_conf_copy := omit ($context.Values.conf | toYaml | fromYaml) "overrides" }}
{{- $merged_dict := mergeOverwrite $root_conf_copy $override_conf_copy }}
{{- $root_conf_copy2 := dict "conf" $merged_dict }}
{{- $context_values := omit (omit ($context.Values | toYaml | fromYaml) "conf") "__daemonset_list" }}
{{- $root_conf_copy3 := mergeOverwrite $context_values $root_conf_copy2 }}
{{- $root_conf_copy4 := dict "Values" $root_conf_copy3 }}
{{- $_ := set $context.Values.__current_label "nodeData" $root_conf_copy4 }}
{{/* Schedule to the provided label value(s) */}}
{{- $label_dict := omit $label_data.label "NULL" }}
{{- $_ := set $label_dict "operator" "In" }}
{{- $list_aggregate := list $label_dict }}
{{- $_ := set $context.Values.__current_label "matchExpressions" $list_aggregate }}
{{/* Do not schedule to other specified labels, with higher
precedence as the list position increases. Last defined label
is highest priority. */}}
{{- $other_labels := without $context.Values.__label_list $label_data }}
{{- range $label_data2 := $other_labels }}
{{- $label_dict := omit $label_data2.label "NULL" }}
{{- $_ := set $label_dict "operator" "NotIn" }}
{{- $list_aggregate := append $context.Values.__current_label.matchExpressions $label_dict }}
{{- $_ := set $context.Values.__current_label "matchExpressions" $list_aggregate }}
{{- end }}
{{- $_ := set $context.Values "__label_list" $other_labels }}
{{/* Do not schedule to any other specified hosts */}}
{{- range $type, $type_data := $val }}
{{- if eq $type "hosts" }}
{{- range $host_data := . }}
{{- $label_dict := dict }}
{{- $_ := set $label_dict "key" "kubernetes.io/hostname" }}
{{- $_ := set $label_dict "operator" "NotIn" }}
{{- $values_list := list $host_data.name }}
{{- $_ := set $label_dict "values" $values_list }}
{{- $list_aggregate := append $context.Values.__current_label.matchExpressions $label_dict }}
{{- $_ := set $context.Values.__current_label "matchExpressions" $list_aggregate }}
{{- end }}
{{- end }}
{{- end }}
{{/* store completed daemonset entry/info into global list */}}
{{- $list_aggregate := append $context.Values.__daemonset_list $context.Values.__current_label }}
{{- $_ := set $context.Values "__daemonset_list" $list_aggregate }}
{{- $_ := unset $context.Values "__current_label" }}
{{- end }}
{{- end }}
{{- end }}
{{/* scheduler exceptions for the default daemonset */}}
{{- $_ := set $context.Values.__default "matchExpressions" list }}
{{- range $type, $type_data := . }}
{{/* Do not schedule to other specified labels */}}
{{- if eq $type "labels" }}
{{- range $label_data := . }}
{{- $default_dict := omit $label_data.label "NULL" }}
{{- $_ := set $default_dict "operator" "NotIn" }}
{{- $list_aggregate := append $context.Values.__default.matchExpressions $default_dict }}
{{- $_ := set $context.Values.__default "matchExpressions" $list_aggregate }}
{{- end }}
{{- end }}
{{/* Do not schedule to other specified hosts */}}
{{- if eq $type "hosts" }}
{{- range $host_data := . }}
{{- $default_dict := dict }}
{{- $_ := set $default_dict "key" "kubernetes.io/hostname" }}
{{- $_ := set $default_dict "operator" "NotIn" }}
{{- $values_list := list $host_data.name }}
{{- $_ := set $default_dict "values" $values_list }}
{{- $list_aggregate := append $context.Values.__default.matchExpressions $default_dict }}
{{- $_ := set $context.Values.__default "matchExpressions" $list_aggregate }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{/* generate the default daemonset */}}
{{/* set name */}}
{{- $_ := set $context.Values.__default "name" "default" }}
{{/* no overrides apply, so copy as-is */}}
{{- $root_conf_copy1 := omit $context.Values.conf "overrides" }}
{{- $root_conf_copy2 := dict "conf" $root_conf_copy1 }}
{{- $context_values := omit $context.Values "conf" }}
{{- $root_conf_copy3 := mergeOverwrite $context_values $root_conf_copy2 }}
{{- $root_conf_copy4 := dict "Values" $root_conf_copy3 }}
{{- $_ := set $context.Values.__default "nodeData" $root_conf_copy4 }}
{{/* add to global list */}}
{{- $list_aggregate := append $context.Values.__daemonset_list $context.Values.__default }}
{{- $_ := set $context.Values "__daemonset_list" $list_aggregate }}
{{- range $current_dict := $context.Values.__daemonset_list }}
{{- $context_novalues := omit $context "Values" }}
{{- $merged_dict := mergeOverwrite $context_novalues $current_dict.nodeData }}
{{- $_ := set $current_dict "nodeData" $merged_dict }}
{{/* Deep copy original daemonset_yaml */}}
{{- $daemonset_yaml := list $daemonset $configmap_name $serviceAccountName $current_dict.nodeData | include $daemonset_include | toString | fromYaml }}
{{- $_ := set $context.Values "__daemonset_yaml" ($daemonset_yaml | toYaml | fromYaml) }}
{{/* name needs to be a DNS-1123 compliant name. Ensure lower case */}}
{{- $name_format1 := printf (print $daemonset_root_name "-" $current_dict.name) | lower }}
{{/* labels may contain underscores which would be invalid here, so we replace them with dashes
there may be other valid label names which would make for an invalid DNS-1123 name
but these will be easier to handle in future with sprig regex* functions
(not availabile in helm 2.5.1) */}}
{{- $name_format2 := $name_format1 | replace "_" "-" }}
{{/* To account for the case where the same label is defined multiple times in overrides
(but with different label values), we add a sha of the scheduling data to ensure
name uniqueness */}}
{{- $_ := set $current_dict "dns_1123_name" dict }}
{{- if hasKey $current_dict "matchExpressions" }}
{{- $_ := set $current_dict "dns_1123_name" (printf (print $name_format2 "-" ($current_dict.matchExpressions | quote | sha256sum | trunc 8))) }}
{{- else }}
{{- $_ := set $current_dict "dns_1123_name" $name_format2 }}
{{- end }}
{{/* set daemonset metadata name */}}
{{- if not $context.Values.__daemonset_yaml.metadata }}{{- $_ := set $context.Values.__daemonset_yaml "metadata" dict }}{{- end }}
{{- if not $context.Values.__daemonset_yaml.metadata.name }}{{- $_ := set $context.Values.__daemonset_yaml.metadata "name" dict }}{{- end }}
{{- $_ := set $context.Values.__daemonset_yaml.metadata "name" $current_dict.dns_1123_name }}
{{/* cross-reference configmap name to container volume definitions */}}
{{- $_ := set $context.Values "__volume_list" list }}
{{- range $current_volume := $context.Values.__daemonset_yaml.spec.template.spec.volumes }}
{{- $_ := set $context.Values "__volume" $current_volume }}
{{- if hasKey $context.Values.__volume "secret" }}
{{- if eq $context.Values.__volume.secret.secretName $configmap_name }}
{{- $_ := set $context.Values.__volume.secret "secretName" $current_dict.dns_1123_name }}
{{- end }}
{{- end }}
{{- $updated_list := append $context.Values.__volume_list $context.Values.__volume }}
{{- $_ := set $context.Values "__volume_list" $updated_list }}
{{- end }}
{{- $_ := set $context.Values.__daemonset_yaml.spec.template.spec "volumes" $context.Values.__volume_list }}
{{/* populate scheduling restrictions */}}
{{- if hasKey $current_dict "matchExpressions" }}
{{- if not $context.Values.__daemonset_yaml.spec.template.spec }}{{- $_ := set $context.Values.__daemonset_yaml.spec.template "spec" dict }}{{- end }}
{{- if not $context.Values.__daemonset_yaml.spec.template.spec.affinity }}{{- $_ := set $context.Values.__daemonset_yaml.spec.template.spec "affinity" dict }}{{- end }}
{{- if not $context.Values.__daemonset_yaml.spec.template.spec.affinity.nodeAffinity }}{{- $_ := set $context.Values.__daemonset_yaml.spec.template.spec.affinity "nodeAffinity" dict }}{{- end }}
{{- if not $context.Values.__daemonset_yaml.spec.template.spec.affinity.nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution }}{{- $_ := set $context.Values.__daemonset_yaml.spec.template.spec.affinity.nodeAffinity "requiredDuringSchedulingIgnoredDuringExecution" dict }}{{- end }}
{{- $match_exprs := dict }}
{{- $_ := set $match_exprs "matchExpressions" $current_dict.matchExpressions }}
{{- $appended_match_expr := list $match_exprs }}
{{- $_ := set $context.Values.__daemonset_yaml.spec.template.spec.affinity.nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution "nodeSelectorTerms" $appended_match_expr }}
{{- end }}
{{/* input value hash for current set of values overrides */}}
{{- if not $context.Values.__daemonset_yaml.spec }}{{- $_ := set $context.Values.__daemonset_yaml "spec" dict }}{{- end }}
{{- if not $context.Values.__daemonset_yaml.spec.template }}{{- $_ := set $context.Values.__daemonset_yaml.spec "template" dict }}{{- end }}
{{- if not $context.Values.__daemonset_yaml.spec.template.metadata }}{{- $_ := set $context.Values.__daemonset_yaml.spec.template "metadata" dict }}{{- end }}
{{- if not $context.Values.__daemonset_yaml.spec.template.metadata.annotations }}{{- $_ := set $context.Values.__daemonset_yaml.spec.template.metadata "annotations" dict }}{{- end }}
{{- $cmap := list $current_dict.dns_1123_name $current_dict.nodeData | include $configmap_include }}
{{- $values_hash := $cmap | quote | sha256sum }}
{{- $_ := set $context.Values.__daemonset_yaml.spec.template.metadata.annotations "configmap-etc-hash" $values_hash }}
{{/* generate configmap */}}
---
{{ $cmap }}
{{/* generate daemonset yaml */}}
---
{{ $context.Values.__daemonset_yaml | toYaml }}
{{- end }}
{{- end }}