Merge "[DCAEGEN2-SVCS] Support config update via configMap"

2 files changed, 45 insertions, 63 deletions

diff --git a/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_configmap.tpl b/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_configmap.tpl
index f76be4c190..afd3c38f31 100644
--- a/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_configmap.tpl
+++ b/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_configmap.tpl
@@ -1,7 +1,7 @@
 {{/*
 # Copyright © 2017 Amdocs, Bell Canada
 # Modifications Copyright © 2019 AT&T
-# Copyright (c) 2021 J. F. Lucas.  All rights reserved.
+# Copyright (c) 2021-2022 J. F. Lucas.  All rights reserved.
 # Copyright (c) 2021 Nordix Foundation.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -30,14 +30,21 @@ use of templates from the ONAP "common" collection) references data in
 .Release.
 
 The template always produces a configMap containing the microservice's
-initial configuration data.  This configMap is used by an initContainer
-that loads the configuration into Consul.  (See the documentation for
+initial configuration data.  (See the documentation for
 dcaegen2-services-common.microserviceDeployment for more details.)
 
-If the microservice is using a logging sidecar (again, see the documentation
-for dcaegen2-services-common.microserviceDeployment for more details), the
-template generates an additiona configMap that supplies configuration
-information for the logging sidecar.
+If the microservice is using one or more Data Router (DR) feeds, the
+template produces a configMap containing the information needed to
+provision the feed(s).  An init container performs the provisioning.
+
+If the microservice acts as a DR publisher for one or more feeds, the
+template produces a configMap containing the information needed to
+provision the publisher(s).  An init container performs the provisioning.
+
+If the microservice acts as a DR subscriber for one or more feeds, the
+template produces a configMap containing the information needed to
+provision the subscribeer(s).  An init container performs the provisioning.
+
 */}}
 
 {{- define "dcaegen2-services-common.configMap" -}}
@@ -96,19 +103,4 @@ data:
   {{ $drsub | toJson | indent 2 }}
   {{- end }}
 {{- end }}
-
-{{- if .Values.mrTopicsConfig }}
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: {{ include "common.fullname" . }}-topics-config
-  namespace: {{ include "common.namespace" . }}
-  labels: {{ include "common.labels" . | nindent 6 }}
-data:
-  {{- range $i, $topics := .Values.mrTopicsConfig }}
-  topicsConfig-{{$i}}.json: |-
-  {{ $topics | toJson | indent 2 }}
-  {{- end }}
-{{- end }}
 {{- end }}
diff --git a/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_deployment.tpl b/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_deployment.tpl
index 9781e33f1f..6c742c07de 100644
--- a/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_deployment.tpl
+++ b/kubernetes/dcaegen2-services/common/dcaegen2-services-common/templates/_deployment.tpl
@@ -33,7 +33,7 @@ provided to all microservices.
 The template expects a single argument, pointing to the caller's global context.
 
 Microservice-specific environment variables can be specified in two ways:
-  1. As literal string values.
+  1. As literal string values. (The values can also be Helm template fragments.)
   2. As values that are sourced from a secret, identified by the secret's
      uid and the key within the secret that provides the value.
 
@@ -180,21 +180,6 @@ The sidecar is included if .Values.log.path is set.  The
 logging sidecar and the DCAE microservice container share a
 volume where the microservice logs are written.
 
-The Deployment includes an initContainer that checks for the
-readiness of other components that the microservice relies on.
-This container is generated by the "common.readinessCheck.waitfor"
-template.
-
-If the microservice acts as a TLS client or server, the Deployment will
-include an initContainer that retrieves certificate information from
-the AAF certificate manager.  The information is mounted at the
-mount point specified in .Values.certDirectory.  If the microservice is
-a TLS server (indicated by setting .Values.tlsServer to true), the
-certificate information will include a server cert and key, in various
-formats.  It will also include the AAF CA cert.   If the microservice is
-a TLS client only (indicated by setting .Values.tlsServer to false), the
-certificate information includes only the AAF CA cert.
-
 Deployed POD may also include a Policy-sync sidecar container.
 The sidecar is included if .Values.policies is set.  The
 Policy-sync sidecar polls PolicyEngine (PDP) periodically based
@@ -212,6 +197,35 @@ policies:
   policyRelease: "onap"
   policyID: |
     '["onap.vfirewall.tca","onap.vdns.tca"]'
+
+The Deployment includes an initContainer that checks for the
+readiness of other components that the microservice relies on.
+This container is generated by the "common.readinessCheck.waitfor"
+template. See the documentation for this template
+(oom/kubernetes/common/readinessCheck/templates/_readinessCheck.tpl).
+
+If the microservice uses a DMaaP Data Router (DR) feed, the Deployment
+includes an initContainer that makes provisioning requests to the DMaaP
+bus controller (dmaap-bc) to create the feed and to set up a publisher
+and/or subscriber to the feed.  The Deployment also includes a second
+initContainer that merges the information returned by the provisioning
+process into the microservice's configuration.  See the documentation for
+the common DMaaP provisioning template
+(oom/kubernetes/common/common/templates/_dmaapProvisioning.tpl).
+
+If the microservice acts as a TLS client or server, the Deployment will
+include an initContainer that retrieves certificate information from
+the AAF certificate manager.  The information is mounted at the
+mount point specified in .Values.certDirectory.  If the microservice is
+a TLS server (indicated by setting .Values.tlsServer to true), the
+certificate information will include a server cert and key, in various
+formats.  It will also include the AAF CA cert.   If the microservice is
+a TLS client only (indicated by setting .Values.tlsServer to false), the
+certificate information includes only the AAF CA cert.
+
+If the microservice uses certificates from an external CMPv2 provider,
+the Deployment will include an initContainer that performs certificate
+post-processing.
 */}}
 
 {{- define "dcaegen2-services-common.microserviceDeployment" -}}
@@ -236,30 +250,6 @@ spec:
     metadata: {{- include "common.templateMetadata" . | nindent 6 }}
     spec:
       initContainers:
-      {{- if not $drFeedConfig }}
-      - command:
-        - sh
-        args:
-        - -c
-        - |
-        {{- range $var := .Values.customEnvVars }}
-          export {{ $var.name }}="{{ $var.value }}";
-        {{- end }}
-          cd /config-input && for PFILE in `ls -1`; do envsubst <${PFILE} >/config/${PFILE}; done
-        env:
-        {{- range $cred := .Values.credentials }}
-        - name: {{ $cred.name }}
-          {{- include "common.secret.envFromSecretFast" (dict "global" $ "uid" $cred.uid "key" $cred.key) | indent 10 }}
-        {{- end }}
-        volumeMounts:
-        - mountPath: /config-input
-          name: app-config-input
-        - mountPath: /config
-          name: app-config
-        image: {{ include "repositoryGenerator.image.envsubst" . }}
-        imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-        name: {{ include "common.name" . }}-update-config
-      {{- end }}
       {{ include "common.readinessCheck.waitFor" . | indent 6 | trim }}
       {{- include "common.dmaap.provisioning.initContainer" . | nindent 6 }}
       {{- if $certDir }}
@@ -331,7 +321,7 @@ spec:
         resources: {{ include "common.resources" . | nindent 2 }}
         volumeMounts:
         - mountPath: /app-config
-          name: app-config
+          name: {{ ternary "app-config-input" "app-config" (not $drFeedConfig) }}
         - mountPath: /app-config-input
           name: app-config-input
         {{- if $logDir }}