openstack-helm/helm-toolkit/templates/snippets/_k8s_init_dep_check.tpl
Pete Birley a7503a7d3f Kubernetes Entrypoint: Lookup service names for dependency checks
The existing entrypoint logic used static names to reolve dependencies.
This prevented the service names, and thus the hostnames of services
being altered. This PS resolves that issue by looking up the service name
from the endpoints specified in the values for a chart.

Partial-Implements: blueprint enhance-entrypoint-dependency-checking
External-Tracking-Id: OSH-21
Change-Id: Ib49490f332f8cd88e98c50d9335dfd314a170936
2017-06-20 08:51:36 -05:00

47 lines
1.7 KiB
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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.snippets.kubernetes_entrypoint_init_container" -}}
{{- $envAll := index . 0 -}}
{{- $deps := index . 1 -}}
{{- $mounts := index . 2 -}}
- name: init
image: {{ $envAll.Values.images.dep_check }}
imagePullPolicy: {{ $envAll.Values.images.pull_policy }}
env:
- name: POD_NAME
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.name
- name: NAMESPACE
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.namespace
- name: INTERFACE_NAME
value: eth0
- name: DEPENDENCY_SERVICE
value: "{{ tuple $deps.services $envAll | include "helm-toolkit.utils.comma_joined_hostname_list" }}"
- name: DEPENDENCY_JOBS
value: "{{ include "helm-toolkit.utils.joinListWithComma" $deps.jobs }}"
- name: DEPENDENCY_DAEMONSET
value: "{{ include "helm-toolkit.utils.joinListWithComma" $deps.daemonset }}"
- name: DEPENDENCY_CONTAINER
value: "{{ include "helm-toolkit.utils.joinListWithComma" $deps.container }}"
- name: COMMAND
value: "echo done"
volumeMounts: {{ $mounts | default "[]"}}
{{- end -}}