[STRIMZI] Add strimzi kafka templates

Add template for strimzi KafkaUser and topic
Move sdc-be to use given templates

Signed-off-by: efiacor <fiachra.corcoran@est.tech>
Change-Id: Idc3c5af7f4945466f8419fed7d2f43de36aacd13
Issue-ID: DMAAP-1836

11 files changed, 195 insertions, 120 deletions

diff --git a/kubernetes/common/common/templates/_strimzikafka.tpl b/kubernetes/common/common/templates/_strimzikafka.tpl
new file mode 100644
index 0000000000..3fd46c7414
--- /dev/null
+++ b/kubernetes/common/common/templates/_strimzikafka.tpl
@@ -0,0 +1,132 @@
+{{/*
+# Copyright © 2022 Nordix Foundation
+#
+# 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.
+*/}}
+
+{{/*
+  Create a Strimzi KafkaUser.
+  Usage:
+      include "common.kafkauser" .
+
+  Strimzi kafka provides cluster access via its custom resource definition KafkaUser
+  which is deployed using its User Operator component.
+  See more info here - https://github.com/strimzi/strimzi-kafka-operator/blob/main/helm-charts/helm3/strimzi-kafka-operator/crds/044-Crd-kafkauser.yaml
+  This allows fine grained access control per user towards the kafka cluster.
+  See more info here - https://strimzi.io/docs/operators/latest/configuring.html#proc-configuring-kafka-user-str
+
+  The kafka user definition is defined as part of .Values per component.
+  For general use by OOM components, the following list of acl types should suffice:
+       type: group (Used by the client app to be added to a particular kafka consumer group)
+       type: topic (1 or more kafka topics that the client needs to access. Commonly [Read,Write])
+
+  Note: The template will use the following default values.
+
+    spec.authentication.type: scram-sha-512 (dictated by the available broker listeners on the kafka cluster)
+    spec.authorization.type: simple (Only type supported by strimzi at present)
+    spec.authorization.acls.resource.patternType: literal
+
+  Example:
+
+  kafkaUser:
+    acls:
+      - name: sdc (mandatory)
+        suffix: mysuffix (optional. Will be appended (with a hyphen) to the "name" entry. ie "sdc-mysuffix")
+        type: group (mandatory. Type "group" is used by the client as it's kafka consumer group)
+        operations: [Read] (mandatory. List of at least 1)
+      - name: SDC-DISTR
+        type: topic
+        patternType: prefix (optional. In this example, the user will be provided Read and Write access to all topics named "SDC-DISTR*")
+        operations: [Read, Write]
+*/}}
+{{- define "common.kafkauser" -}}
+{{- $global := .global }}
+apiVersion: kafka.strimzi.io/v1beta2
+kind: KafkaUser
+metadata:
+  name: {{ include "common.name" . }}-ku
+  namespace: {{ include "common.namespace" $global }}
+  labels:
+    strimzi.io/cluster: {{ include "common.release" . }}-strimzi
+spec:
+  authentication:
+    type: {{ .Values.kafkaUser.authenticationType | default "scram-sha-512" }}
+  authorization:
+    type: {{ .Values.kafkaUser.authorizationType | default "simple" }}
+    acls:
+      {{- range $acl := .Values.kafkaUser.acls }}
+      - resource:
+          type: {{ $acl.type }}
+          patternType: {{ $acl.patternType | default "literal" }}
+          name: {{ ternary (printf "%s-%s" $acl.name $acl.suffix) $acl.name (hasKey $acl "suffix") }}
+        operations:
+        {{- range $operation := $acl.operations }}
+          - {{ . }}
+        {{- end }}
+      {{- end }}
+{{- end -}}
+
+{{/*
+  Create a Strimzi KafkaTopic.
+  Usage:
+      include "common.kafkatopic" .
+
+  Strimzi kafka provides kafka topic management via its custom resource definition KafkaTopic
+  which is deployed using its Topic Operator component.
+  See more info here - https://github.com/strimzi/strimzi-kafka-operator/blob/main/helm-charts/helm3/strimzi-kafka-operator/crds/043-Crd-kafkatopic.yaml
+
+  Note: KafkaTopic names should adhere to kubernetes object naming conventions - https://kubernetes.io/docs/concepts/overview/working-with-objects/names/
+        maximum length of 253 characters and consist of lower case alphanumeric characters, -, and .
+
+  Note: The template will use the following default values.
+
+    spec.config.retention.ms: 7200000 (defaults to 2 hrs retention for kafka topic logs)
+    spec.config.segment.bytes: 1073741824 (defaults to 1gb)
+    spec.partitions: 6 (defaults to (2 * (default.replication.factor)) defined by the strimzi broker conf)
+    spec.replicas: 3 (defaults to default.replication.factor defined by the strimzi broker conf. Must be > 0 and <= (num of broker replicas))
+
+  The kafka topic definition is defined as part of .Values per component.
+
+  Example:
+
+  kafkaTopic:
+    - name: my-new-topic (mandatory)
+      retentionMs: 7200000 (optional. Defaults to 2hrs)
+      segmentBytes: 1073741824 (optional. Defaults to 1gb)
+      suffix: my-suffix (optional. Will be appended (with a hyphen) to the "name" value. ie "my-new-topic-my-suffix")
+    - name: my.other.topic
+      suffix: some.other-suffix
+*/}}
+{{- define "common.kafkatopic" -}}
+{{- $global := .global }}
+{{- range $topic := .Values.kafkaTopic }}
+apiVersion: kafka.strimzi.io/v1beta2
+kind: KafkaTopic
+metadata:
+  name: {{ ($topic.name) | lower }}-kt
+  labels:
+    strimzi.io/cluster: {{ include "common.release" $ }}-strimzi
+spec:
+  {{- if (hasKey $topic "partitions") }}
+  partitions: {{ $topic.partitions }}
+  {{- end }}
+  {{- if (hasKey $topic "replicas") }}
+  replicas: {{ $topic.replicas }}
+  {{- end }}
+  topicName: {{ ternary (printf "%s-%s" $topic.name $topic.suffix) $topic.name (hasKey $topic "suffix") }}
+  config:
+    retention.ms: {{ $topic.retentionMs | default "7200000" }}
+    segment.bytes: {{ $topic.segmentBytes | default "1073741824"}}
+---
+{{- end }}
+{{- end -}}
diff --git a/kubernetes/sdc/Chart.yaml b/kubernetes/sdc/Chart.yaml
index aaa3ac29b7..7c67f49da9 100644
--- a/kubernetes/sdc/Chart.yaml
+++ b/kubernetes/sdc/Chart.yaml
@@ -21,6 +21,9 @@ name: sdc
 version: 12.0.0
 
 dependencies:
+  - name: common
+    version: ~12.x-0
+    repository: '@local'
   - name: sdc-be
     version: ~12.x-0
     repository: 'file://components/sdc-be'
diff --git a/kubernetes/sdc/components/sdc-be/Chart.yaml b/kubernetes/sdc/components/sdc-be/Chart.yaml
index e4052afc3d..fe9f39108b 100644
--- a/kubernetes/sdc/components/sdc-be/Chart.yaml
+++ b/kubernetes/sdc/components/sdc-be/Chart.yaml
@@ -21,6 +21,9 @@ name: sdc-be
 version: 12.0.0
 
 dependencies:
+  - name: common
+    version: ~12.x-0
+    repository: '@local'
   - name: certInitializer
     version: ~12.x-0
     repository: '@local'
diff --git a/kubernetes/sdc/components/sdc-be/templates/deployment.yaml b/kubernetes/sdc/components/sdc-be/templates/deployment.yaml
index 16fc57aa92..d50a83b2fd 100644
--- a/kubernetes/sdc/components/sdc-be/templates/deployment.yaml
+++ b/kubernetes/sdc/components/sdc-be/templates/deployment.yaml
@@ -163,7 +163,10 @@ spec:
                 fieldPath: status.podIP
           {{- if .Values.global.kafka.useKafka }}
           - name: SASL_JAAS_CONFIG
-            {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" "sdc-be-kafka-secret" "key" "sasl.jaas.config") | indent 12 }}
+            valueFrom:
+              secretKeyRef:
+                name: {{ include "common.name" . }}-ku
+                key: sasl.jaas.config
           - name: USE_KAFKA
             value: {{ .Values.global.kafka.useKafka | quote }}
           {{- end }}
diff --git a/kubernetes/sdc/components/sdc-be/templates/secret.yaml b/kubernetes/sdc/components/sdc-be/templates/kafkauser.yaml
index bb5091f01a..5033d9d9aa 100644
--- a/kubernetes/sdc/components/sdc-be/templates/secret.yaml
+++ b/kubernetes/sdc/components/sdc-be/templates/kafkauser.yaml
@@ -13,5 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 */}}
-
-{{ include "common.secretFast" . }}
+{{- if .Values.global.kafka.useKafka }}
+{{ include "common.kafkauser" . }}
+{{- end }}
diff --git a/kubernetes/sdc/components/sdc-be/templates/sdc-be-kafka-user.yaml b/kubernetes/sdc/components/sdc-be/templates/sdc-be-kafka-user.yaml
deleted file mode 100644
index 6cd7f93c5a..0000000000
--- a/kubernetes/sdc/components/sdc-be/templates/sdc-be-kafka-user.yaml
+++ /dev/null
@@ -1,39 +0,0 @@
-{{/*
-# Copyright © 2022 Nordix Foundation
-#
-# 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.
-*/}}
-
-{{- if .Values.global.kafka.useKafka }}
-apiVersion: kafka.strimzi.io/v1beta2
-kind: KafkaUser
-metadata:
-  name: {{ include "common.release" . }}-{{ .Values.global.kafka.sdcBeKafkaUser }}
-  labels:
-    strimzi.io/cluster: {{ include "common.release" . }}-strimzi
-spec:
-  authentication:
-    type: {{ .Values.config.kafka.saslMech }}
-  authorization:
-    type: {{ .Values.config.kafka.authType }}
-    acls:
-    - resource:
-        type: group
-        name: {{ .Values.config.kafka.topicConsumer.groupId }}-{{ .Values.env.name }}
-      operation: Read
-    - resource:
-        type: topic
-        patternType: prefix
-        name: {{ .Values.config.kafka.topicConsumer.pattern }}
-      operation: All
-{{- end }}
diff --git a/kubernetes/sdc/components/sdc-be/templates/sdc-distro-topics.yaml b/kubernetes/sdc/components/sdc-be/templates/sdc-distro-topics.yaml
deleted file mode 100644
index 9a6f7579e8..0000000000
--- a/kubernetes/sdc/components/sdc-be/templates/sdc-distro-topics.yaml
+++ /dev/null
@@ -1,40 +0,0 @@
-{{/*
-# Copyright © 2022 Nordix Foundation
-#
-# 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.
-*/}}
-{{- if .Values.global.kafka.useKafka }}
-apiVersion: kafka.strimzi.io/v1beta2
-kind: KafkaTopic
-metadata:
-  name: sdc-distro-notif-topic
-  labels:
-    strimzi.io/cluster: {{ include "common.release" . }}-strimzi
-spec:
-  topicName: {{ .Values.global.kafka.topics.sdcDistNotifTopic }}-{{ .Values.env.name }}
-  config:
-    retention.ms: {{ .Values.config.kafka.topicRetentionMs }}
-    segment.bytes: {{ .Values.config.kafka.topicSegmentBytes }}
----
-apiVersion: kafka.strimzi.io/v1beta2
-kind: KafkaTopic
-metadata:
-  name: sdc-distro-status-topic
-  labels:
-    strimzi.io/cluster: {{ include "common.release" . }}-strimzi
-spec:
-  topicName: {{ .Values.global.kafka.topics.sdcDistStatusTopic }}-{{ .Values.env.name }}
-  config:
-    retention.ms: {{ .Values.config.kafka.topicRetentionMs }}
-    segment.bytes: {{ .Values.config.kafka.topicSegmentBytes }}
-{{- end }}
\ No newline at end of file
diff --git a/kubernetes/sdc/components/sdc-be/values.yaml b/kubernetes/sdc/components/sdc-be/values.yaml
index faf46e5549..b7b3acd909 100644
--- a/kubernetes/sdc/components/sdc-be/values.yaml
+++ b/kubernetes/sdc/components/sdc-be/values.yaml
@@ -31,13 +31,10 @@ global:
     replicaCount: 3
     clusterName: cassandra
     dataCenter: Pod
-  # Strimzi kafka config
+  # Global Strimzi kafka config overridden
+  # from parent values.yaml
   kafka:
     useKafka: overridden-from-parent-values-yaml
-    sdcBeKafkaUser: overridden-from-parent-values-yaml
-    topics:
-      sdcDistNotifTopic: overridden-from-parent-values-yaml
-      sdcDistStatusTopic: overridden-from-parent-values-yaml
 
 #################################################################
 # Application configuration defaults.
@@ -53,7 +50,7 @@ debugEnabled: false
 
 #environment file
 env:
-  name: AUTO
+  name: &env AUTO
 
 certInitializer:
   nameOverride: sdc-be-cert-init
@@ -78,29 +75,21 @@ certInitializer:
 #################################################################
 # SDC Config part
 #################################################################
-
-secrets:
-  - uid: sdc-be-kafka-secret
-    externalSecret: '{{ tpl (default "" .Values.config.jaasConfExternalSecret) . }}'
-    type: genericKV
-    envs:
-      - name: sasl.jaas.config
-        value: '{{ .Values.config.someConfig }}'
-        policy: generate
-
 config:
   javaOptions: "-Xmx1536m -Xms1536m"
   cassandraSslEnabled: "false"
-  # Strimzi kafka config
-  kafka:
-    saslMech: scram-sha-512
-    securityProtocol: SASL_PLAINTEXT
-    authType: simple
-    topicRetentionMs: 7200000
-    topicSegmentBytes: 1073741824
-    topicConsumer:
-      pattern: SDC-DIST
-      groupId: sdc
+
+kafkaUser:
+  acls:
+    - name: sdc
+      suffix: *env
+      type: group
+      operations: [Read]
+    - name: SDC-DISTR
+      type: topic
+      patternType: prefix
+      operations: [Read, Write]
+
 
 # default number of instances
 replicaCount: 1
diff --git a/kubernetes/sdc/resources/config/environments/AUTO.json b/kubernetes/sdc/resources/config/environments/AUTO.json
index aee666f4af..065a756822 100755
--- a/kubernetes/sdc/resources/config/environments/AUTO.json
+++ b/kubernetes/sdc/resources/config/environments/AUTO.json
@@ -36,12 +36,14 @@
             ]
         },
         "Kafka": {
-             "bootstrap": "{{ include "common.release" . }}-{{ .Values.global.kafka.kafkaBootstrap }}"
+             "bootstrap": "{{ include "common.release" . }}-strimzi-kafka-bootstrap:9092"
         },
+        {{- if .Values.global.kafka.useKafka }}
         "DistributionTopics": {
              "notificationTopicName": "{{ .Values.global.kafka.topics.sdcDistNotifTopic }}",
              "statusTopicName": "{{ .Values.global.kafka.topics.sdcDistStatusTopic }}"
         },
+        {{- end }}
         "Nodes": {
             "CS": [
                 "{{.Values.global.sdc_cassandra.serviceName}}.{{include "common.namespace" .}}"
diff --git a/kubernetes/sdc/templates/kafkatopic.yaml b/kubernetes/sdc/templates/kafkatopic.yaml
new file mode 100644
index 0000000000..53352c4e56
--- /dev/null
+++ b/kubernetes/sdc/templates/kafkatopic.yaml
@@ -0,0 +1,18 @@
+{{/*
+# Copyright © 2022 Nordix Foundation
+#
+# 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.
+*/}}
+{{- if .Values.global.kafka.useKafka }}
+{{ include "common.kafkatopic" . }}
+{{- end }}
\ No newline at end of file
diff --git a/kubernetes/sdc/values.yaml b/kubernetes/sdc/values.yaml
index 60a361eae6..1e11ca6410 100644
--- a/kubernetes/sdc/values.yaml
+++ b/kubernetes/sdc/values.yaml
@@ -42,19 +42,26 @@ global:
    clusterName: cassandra
    dataCenter: Pod
   centralizedLoggingEnabled: true
-  # Kafka config
+  # global Kafka config passed to sdc-be chart
   kafka:
+    # If true, the following Strimzi KafkaTopics will be created
     useKafka: true
-    sdcBeKafkaUser: sdc-be-kafka-user
-    kafkaBootstrap: strimzi-kafka-bootstrap:9092
     topics:
-      sdcDistNotifTopic: SDC-DISTR-NOTIF-TOPIC
-      sdcDistStatusTopic: SDC-DISTR-STATUS-TOPIC
+      sdcDistNotifTopic: &notif-topic-name SDC-DISTR-NOTIF-TOPIC
+      sdcDistStatusTopic: &status-topic-name SDC-DISTR-STATUS-TOPIC
+
+# Environment file
+env:
+  name: &env AUTO
+
+kafkaTopic:
+  - name: *notif-topic-name
+    suffix: *env
+  - name: *status-topic-name
+    suffix: *env
 
 sdc-be:
   logConfigMapNamePrefix: '{{ include "common.release" . }}-sdc'
-  config:
-    jaasConfExternalSecret: '{{ include "common.release" . }}-{{ .Values.global.kafka.sdcBeKafkaUser }}'
 sdc-fe:
   logConfigMapNamePrefix: '{{ include "common.release" . }}-sdc'
 sdc-onboarding-be:
@@ -62,10 +69,6 @@ sdc-onboarding-be:
 sdc-wfd-fe:
   logConfigMapNamePrefix: '{{ include "common.release" . }}-sdc'
 
-# Environment file
-env:
-  name: AUTO
-
 config:
   logstashServiceName: log-ls
   logstashPort: 5044