Hazelcast with clustering configuration based off the official Hazelcast Docker image. Uses multicast to automatically form a cluster.
The default parameters can be overridden by setting environment variables on the container using the docker run -e flag.
- HZ_PORT - Port to bind to.
- HZ_PUBLIC_HOST - Public hostname to advertise to the cluster.
- HZ_PUBLIC_PORT - Public port to advertise to the cluster. Defaults to $HZ_PORT
- HZ_GROUP_NAME - Group name to avoid different clusters from joining each other.
- HZ_GROUP_PASSWORD - Password required to join the cluster.
Deployment and clustering config examples.
{
"id": "/myproduct/mysubsystem/hazelcast",
"container": {
"type": "DOCKER",
"docker": {
"image": "meltwater/hazelcast:latest"
}
},
"ports": [
5701
],
"env": {
"HZ_PORT": "${PORT_5701}",
"HZ_PUBLIC_HOST": "${HOST}",
"HZ_GROUP_NAME": "mygroup",
"HZ_GROUP_PASSWORD": "secret"
},
"instances": 3,
"healthChecks": [
{
"protocol": "TCP",
"portIndex": 0,
"gracePeriodSeconds": 15,
"intervalSeconds": 10,
"timeoutSeconds": 20,
"maxConsecutiveFailures": 3
}
]
}
Using the garethr-docker module
classes:
- docker::run_instance
docker::run_instance:
'hazelcast':
image: 'meltwater/hazelcast:latest'
net: 'host'
env:
- "HZ_GROUP_NAME=mygroup"
- "HZ_GROUP_PASSWORD=secret"
docker run --net=host \
-e HZ_GROUP_NAME=mygroup \
-e HZ_GROUP_PASSWORD=secret \
meltwater/hazelcast:latest
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