Feat: Kafka package, added host_label question to control where to deploy. Compose files updated to v2 format

templates/kafka/4/README.md

@@ -23,6 +23,7 @@
 - kafka_auto_create_topics="true"		# kafka auto create topics
 - kafka_replication_factor=1 			# Kafka replication factor
 - kafka_pub_ip= < true | false >		# Advertise public ip to zookeeper.
+- host_label=""                         # Host label where to deploy kafka.
 - zk_link="kafka-zk/zk" 				# zookeeper stack/service to connect to.
  
  Click deploy.

templates/kafka/4/docker-compose.yml

@@ -1,46 +0,0 @@
-broker:
-  tty: true
-  image: rawmind/alpine-kafka:1.0.0-2
-  volumes_from:
-    - broker-volume
-    - broker-conf
-  environment:
-    - JVMFLAGS=-Xmx${kafka_mem}m -Xms${kafka_mem}m
-    - CONFD_INTERVAL=${kafka_interval}
-    - ZK_SERVICE=${zk_link}
-    - KAFKA_DELETE_TOPICS=${kafka_delete_topics}
-    - KAFKA_LOG_DIRS=${kafka_log_dir}
-    - KAFKA_LOG_RETENTION_HOURS=${kafka_log_retention}
-    - KAFKA_NUM_PARTITIONS=${kafka_num_partitions}
-    - ADVERTISE_PUB_IP=${kafka_pub_ip}
-    - KAFKA_AUTO_CREATE_TOPICS=${kafka_auto_create_topics}
-    - KAFKA_REPLICATION_FACTOR=${kafka_replication_factor}
-  external_links:
-    - ${zk_link}:zk
-  labels: 
-    io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
-    io.rancher.container.hostname_override: container_name
-    io.rancher.sidekicks: broker-volume, broker-conf
-broker-conf:
-  net: none
-  labels:
-    io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
-    io.rancher.container.hostname_override: container_name
-    io.rancher.container.start_once: true
-  image: rawmind/rancher-kafka:0.11.0.0-1
-  volumes:
-    - /opt/tools
-broker-volume:
-  net: none
-  labels:
-    io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
-    io.rancher.container.hostname_override: container_name
-    io.rancher.container.start_once: true
-  environment:
-    - SERVICE_UID=10003
-    - SERVICE_GID=10003
-    - SERVICE_VOLUME=${kafka_log_dir}
-  volumes:
-    - ${kafka_log_dir}
-  volume_driver: local
-  image: rawmind/alpine-volume:0.0.2-1

templates/kafka/4/docker-compose.yml.tpl

@@ -0,0 +1,63 @@
+version: '2'
+services:
+  broker:
+    tty: true
+    image: rawmind/alpine-kafka:1.0.0-2
+    volumes_from:
+      - broker-volume
+      - broker-conf
+    environment:
+      - JVMFLAGS=-Xmx${kafka_mem}m -Xms${kafka_mem}m
+      - CONFD_INTERVAL=${kafka_interval}
+      - ZK_SERVICE=${zk_link}
+      - KAFKA_DELETE_TOPICS=${kafka_delete_topics}
+      - KAFKA_LOG_DIRS=${kafka_log_dir}
+      - KAFKA_LOG_RETENTION_HOURS=${kafka_log_retention}
+      - KAFKA_NUM_PARTITIONS=${kafka_num_partitions}
+      - ADVERTISE_PUB_IP=${kafka_pub_ip}
+      - KAFKA_AUTO_CREATE_TOPICS=${kafka_auto_create_topics}
+      - KAFKA_REPLICATION_FACTOR=${kafka_replication_factor}
+    external_links:
+      - ${zk_link}:zk
+    labels: 
+      io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
+      io.rancher.container.hostname_override: container_name
+      io.rancher.sidekicks: broker-volume, broker-conf
+    {{- if ne .Values.host_label ""}}
+      io.rancher.scheduler.affinity:host_label: ${host_label}
+    {{- end}}
+  broker-conf:
+    network_mode: none
+    labels:
+      io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
+      io.rancher.container.hostname_override: container_name
+      io.rancher.container.start_once: true
+    {{- if ne .Values.host_label ""}}
+      io.rancher.scheduler.affinity:host_label: ${host_label}
+    {{- end}}
+    image: rawmind/rancher-kafka:0.11.0.0-1
+    volumes:
+      - brokerconfig:/opt/tools
+  broker-volume:
+    network_mode: none
+    labels:
+      io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
+      io.rancher.container.hostname_override: container_name
+      io.rancher.container.start_once: true
+    {{- if ne .Values.host_label ""}}
+      io.rancher.scheduler.affinity:host_label: ${host_label}
+    {{- end}}
+    environment:
+      - SERVICE_UID=10003
+      - SERVICE_GID=10003
+      - SERVICE_VOLUME=${kafka_log_dir}
+    volumes:
+      - brokerdata:${kafka_log_dir}
+    image: rawmind/alpine-volume:0.0.2-1
+volumes:
+  brokerconfig:
+    driver: local
+    per_container: true
+  brokerdata:
+    driver: local
+    per_container: true

templates/kafka/4/rancher-compose.yml

@@ -1,8 +1,9 @@
-.catalog:
+version: '2'
+catalog:
   name: Kafka
   version: 1.0.0-rancher1
   description: |
-    (Experimental) Apache Kafka cluster.
+    Apache Kafka cluster.
   minimum_rancher_version: v0.59.0
   maintainer: "Raul Sanchez <rawmind@gmail.com>"
   uuid: kafka-0
@@ -75,6 +76,13 @@
       required: false
       default: false 
       type: "boolean"
+    - variable: host_label
+      label: "Host Label"
+      description: |
+        Host label where deploy kafka. E.G.: 'kafka=true'
+      required: false
+      default: ""
+      type: "string"
     - variable: "zk_link"
       description: |
         Choose the Zookeeper service to use. 
@@ -83,7 +91,8 @@
       default: "kafka-zk/zk"
       required: true
       type: "service"
-broker:
+services:
+  broker:
     scale: ${kafka_scale}
     retain_ip: true
     health_check: