openstack/openstack-helm-infra
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Helm Toolkit: util to return a list of unique hosts for endpoint

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This PS adds a util to return a list of unique hosts for an endpoint,
with the fqdn value returned as the 1st item in the list.

Change-Id: Idaa63fad908f04a2d233e29092f6df30edd55bdb
Signed-off-by: Pete Birley <pete@port.direct>
This commit is contained in:
Pete Birley 2018-08-30 12:17:58 -05:00 committed by Pete Birley
parent 545fa50eef
commit 02fb7e4f59
1 changed files with 46 additions and 0 deletions
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46
helm-toolkit/templates/utils/_host_list.tpl Normal file
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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.
*/}}
{{/*
abstract: |
Returns a list of unique hosts for an endpoint, in yaml.
values: |
endpoints:
cluster_domain_suffix: cluster.local
oslo_db:
hosts:
default: mariadb
host_fqdn_override:
default: mariadb
usage: |
{{ tuple "oslo_db" "internal" . | include "helm-toolkit.utils.host_list" }}
return: |
hosts:
- mariadb
- mariadb.default
*/}}
{{- define "helm-toolkit.utils.host_list" -}}
{{- $type := index . 0 -}}
{{- $endpoint := index . 1 -}}
{{- $context := index . 2 -}}
{{- $host_fqdn := tuple $type $endpoint $context | include "helm-toolkit.endpoints.hostname_fqdn_endpoint_lookup" }}
{{- $host_namespaced := tuple $type $endpoint $context | include "helm-toolkit.endpoints.hostname_namespaced_endpoint_lookup" }}
{{- $host_short := tuple $type $endpoint $context | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
{{/* It is important that the FQDN host is 1st in this list, to ensure other function can use the 1st element for cert gen CN etc */}}
{{- $host_list := list $host_fqdn $host_namespaced $host_short | uniq }}
{{- dict "hosts" $host_list | toYaml }}
{{- end -}}