Add JAVA_OPTS to KAFKA_OPTS

images/kafka-broker/Dockerfile

@@ -29,8 +29,10 @@ MAINTAINER [[ .docker.maintainer ]]
 ENV PATH=/opt/kafka/bin:$PATH \
     KAFKA_DATA_DIR=/data \
     KAFKA_CONF_DIR=/opt/kafka/config \
-    KAFKA_HEAP_OPTS="-Xmx1G -Xms1G" \
+    KAFKA_HEAP_OPTS=" " \
     KAFKA_GC_LOG_OPTS=" " \
+    KAFKA_JMX_OPTS=" " \
+    KAFKA_OPTS="${JAVA_OPTS}" \
     LOG_DIR=/logs
 
 COPY --from=builder /opt/kafka/ /opt/kafka/

kafka-brokers.nomad.hcl

@@ -64,8 +64,7 @@ job "[[ .instance ]]-brokers" {
       leader = true
 
       config {
-        image = "[[ $c.image ]]"
-        readonly_rootfs = true
+[[ template "common/image" $c ]]
         pids_limit = 500
         volumes = [
           "local/conf/server.properties:/opt/kafka/config/server.properties:ro",
@@ -81,6 +80,8 @@ job "[[ .instance ]]-brokers" {
         PEM_KEY_FILE  = "/secrets/kafka.bundle.pem"
         PEM_CERT_FILE = "/secrets/kafka.bundle.pem"
         P12_FILE      = "/secrets/kafka.p12"
+        TMPDIR        = "/local/tmp"
+        LOG_DIR       = "/alloc/logs/"
       }
 [[ template "common/file_env" $c ]]
 

variables.yml

@@ -11,7 +11,7 @@ kafka:
   broker:
     count: 3
     version: 3.7.0
-    image: '[[ .docker.repo ]]kafka-broker:[[ .kafka.broker.version ]]-2'
+    image: '[[ .docker.repo ]]kafka-broker:[[ .kafka.broker.version ]]-3'
     env: {}
     resources:
       cpu: 100