mirror of
https://github.com/itzg/docker-minecraft-server.git
synced 2024-06-07 19:40:43 +00:00
121 lines
3.8 KiB
Markdown
121 lines
3.8 KiB
Markdown
This Docker image provides an easily configurable Elasticsearch node. Via
|
|
port mappings, it is becomes easy to create an arbitrarily sized cluster of
|
|
nodes. As long as the versions match, you can mix-and-match "real"
|
|
Elasticsearch nodes with containerized ones.
|
|
|
|
# Basic Usage
|
|
|
|
To start an Elasticsearch data node that listens on the standard ports on
|
|
your host's network interface:
|
|
|
|
docker run -d -p 9200:9200 -p 9300:9300 itzg/elasticsearch
|
|
|
|
You'll then be able to connect to the Elasticsearch HTTP interface to confirm
|
|
it's alive:
|
|
|
|
http://DOCKERHOST:9200/
|
|
|
|
{
|
|
"status" : 200,
|
|
"name" : "Charon",
|
|
"version" : {
|
|
"number" : "1.3.5",
|
|
"build_hash" : "4a50e7df768fddd572f48830ae9c35e4ded86ac1",
|
|
"build_timestamp" : "2014-11-05T15:21:28Z",
|
|
"build_snapshot" : false,
|
|
"lucene_version" : "4.9"
|
|
},
|
|
"tagline" : "You Know, for Search"
|
|
}
|
|
|
|
Where `DOCKERHOST` would be the actual hostname of your host running
|
|
Docker.
|
|
|
|
# Basic multi-node cluster
|
|
|
|
Running a multi-node cluster (3-node in this example) is almost as easy:
|
|
|
|
docker run -d -p 9200:9200 -p 9300:9300 itzg/elasticsearch
|
|
docker run -d -p 9201:9200 -p 9301:9300 itzg/elasticsearch
|
|
docker run -d -p 9202:9200 -p 9302:9300 itzg/elasticsearch
|
|
|
|
where the only difference was the host port binding of `9200:`/`9300:`,
|
|
`9201:`/`9301:`, and `9202:`/`9302:`. By default, Elasticsearch uses
|
|
[Zen Discovery](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-discovery-zen.html), so the three nodes find each other and form a cluster. You
|
|
can confirm that by checking the cluster health for the presence of
|
|
three nodes (`number_of_nodes`):
|
|
|
|
http://DOCKERHOST:9200/_cluster/health?pretty
|
|
|
|
{
|
|
"cluster_name" : "elasticsearch",
|
|
"status" : "green",
|
|
"timed_out" : false,
|
|
"number_of_nodes" : 3,
|
|
"number_of_data_nodes" : 3,
|
|
"active_primary_shards" : 0,
|
|
"active_shards" : 0,
|
|
"relocating_shards" : 0,
|
|
"initializing_shards" : 0,
|
|
"unassigned_shards" : 0
|
|
}
|
|
|
|
# Configuration
|
|
|
|
The following configuration options are specified using `docker run`
|
|
environment variables (`-e`) like
|
|
|
|
docker run ... -e NAME=VALUE ... itzg/elasticsearch
|
|
|
|
## Cluster Name
|
|
|
|
If joining a pre-existing cluster, then you may need to specify a cluster name
|
|
different than the default "elasticsearch":
|
|
|
|
-e CLUSTER=dockers
|
|
|
|
## Zen Unicast Hosts
|
|
|
|
When joining a multi-physical-host cluster, multicast may not be supported
|
|
on the physical network. In that case, your node can reference specific one or more hosts in
|
|
the cluster via the
|
|
[Zen Unicast Hosts](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-discovery-zen.html#unicast) capability as a comma-separated list of `HOST:PORT` pairs:
|
|
|
|
-e UNICAST_HOSTS=HOST:PORT[,HOST:PORT]
|
|
|
|
such as
|
|
|
|
-e UNICAST_HOSTS=192.168.0.100:9300
|
|
|
|
## Plugins
|
|
|
|
You can install one or more plugins before startup by passing a comma-separated
|
|
list of plugins.
|
|
|
|
-e PLUGINS=ID[,ID]
|
|
|
|
In this example, it will install the Marvel plugin
|
|
|
|
-e PLUGINS=elasticsearch/marvel/latest
|
|
|
|
Many more plugins [are available here](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-plugins.html#known-plugins).
|
|
|
|
## Publish As
|
|
|
|
Since the container gives the Elasticsearch software an isolated perspective
|
|
of its networking, it will most likely advertise its published address with
|
|
a container-internal IP address. This can be overridden with a physical networking
|
|
name and port using:
|
|
|
|
-e PUBLISH_AS=DOCKERHOST:9301
|
|
|
|
_Author Note: I have yet to hit a case where this was actually necessary. Other
|
|
than the cosmetic weirdness in the logs, Elasticsearch seems to be quite tolerant._
|
|
|
|
## Node Name
|
|
|
|
Rather than use the randomly assigned node name, you can indicate a specific
|
|
one using:
|
|
|
|
-e NODE_NAME=Docker
|