mateothegreat / k8-byexamples-elasticsearch-cluster

Elasticsearch on k8 -- straight to the point, simple execution.

Elasticsearch

k8 by example -- straight to the point, simple execution.

Getting started

Clone this repo and initialize submodules:

git clone https://github.com/mateothegreat/k8-byexamples-elasticsearch-cluster && cd $_
git submodule update --init

Environment Variables

NS                      ?= default
SERVICE_ACCOUNT         ?= elasticsearch-service-account
ELASTICSEARCH_HOST      ?= elasticsearch
PORT_HTTP               ?= 9200
PORT_TRANSPORT          ?= 9300
CLUSTER_NAME            ?= cluster
NUMBER_OF_MASTERS       ?= 1
NUMBER_OF_CLIENTS       ?= 1
ES_JAVA_OPTS            ?= -Xms256m -Xmx256m
ES_PLUGINS_INSTALL      ?= "repository-gcs,ingest-user-agent"

Usage

$ make help

Usage:

  make <target>

Targets:

  manifests            Output manifests detected (used with make install, delete, get, describe, etc)
  install              Installs manifests to kubernetes using kubectl apply (make manifests to see what will be installed)
  delete               Deletes manifests to kubernetes using kubectl delete (make manifests to see what will be installed)
  get                  Retrieves manifests to kubernetes using kubectl get (make manifests to see what will be installed)
  describe             Describes manifests to kubernetes using kubectl describe (make manifests to see what will be installed)

Install

$ make install

[ INSTALLING MANIFESTS/ES-CLIENT.YAML ]: deployment "es-client" created
[ INSTALLING MANIFESTS/ES-DATA.YAML ]: deployment "es-data" created
[ INSTALLING MANIFESTS/ES-DISCOVERY-SVC.YAML ]: service "elasticsearch-discovery" created
[ INSTALLING MANIFESTS/ES-MASTER.YAML ]: deployment "es-master" created
[ INSTALLING MANIFESTS/ES-SVC.YAML ]: service "elasticsearch" created

Testing

$ make test

curl http://elasticsearch:9200/

{  "name" : "es-client-77b9c8465f-lrsth",
  "cluster_name" : "cluster",
  "cluster_uuid" : "27_5x9EITdWQuiZ31N3shA",
  "version" : {
    "number" : "6.1.2",
    "build_hash" : "5b1fea5",
    "build_date" : "2018-01-10T02:35:59.208Z",
    "build_snapshot" : false,
    "lucene_version" : "7.1.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

curl http://elasticsearch:9200/_cat/indices?pretty

green open .kibana             DYwSiEEnTGmxDoGhM3R91Q 1 1    2 0 20.3kb 10.1kb
green open logstash-2018.02.18 CBZTdN6NSleDdePt3nv1AA 5 1 3472 0  3.3mb  1.5mb

Delete

 make delete

[ DELETING MANIFESTS/ES-CLIENT.YAML ]: deployment "es-client" deleted
[ DELETING MANIFESTS/ES-DATA.YAML ]: deployment "es-data" deleted
[ DELETING MANIFESTS/ES-DISCOVERY-SVC.YAML ]: service "elasticsearch-discovery" deleted
[ DELETING MANIFESTS/ES-MASTER.YAML ]: deployment "es-master" deleted
[ DELETING MANIFESTS/ES-SVC.YAML ]: service "elasticsearch" deleted

See also

• https://github.com/pires/kubernetes-elasticsearch-cluster