現在就跟著小幫手一起來快速安裝 OpenSearch 吧！（以 Ubuntu 系統示範）
下載最新版本 OpenSearch 2.18 安裝包
安裝基本套件
$ sudo apt-get update && sudo apt-get -y install lsb-release ca-certificates curl gnupg2
導入 GPG 公鑰
$ curl -o- https://artifacts.opensearch.org/publickeys/opensearch.pgp | sudo gpg --dearmor --batch --yes -o /usr/share/keyrings/opensearch-keyring
創建 apt 儲存庫
$ echo "deb [signed-by=/usr/share/keyrings/opensearch-keyring] https://artifacts.opensearch.org/releases/bundle/opensearch/2.x/apt stable main" | sudo tee /etc/apt/sources.list.d/opensearch-2.x.list
更新儲存庫
$ sudo apt-get update
列出 OpenSearch 可用版本
$ sudo apt list -a opensearch
選擇欲安裝版本，若無指定，將安裝當前最新版
### 2.12 後的版本需先設定 admin 的密碼
$ sudo env OPENSEARCH_INITIAL_ADMIN_PASSWORD=${admin-password} apt-get install opensearch=2.18
### 如需 2.11 前的版本可直接指定版號後安裝
$ sudo apt-get install opensearch=${version}
OpenSearch 設定
修改 Opensearch 的 YML
$ sudo vi /etc/opensearch/opensearch.yml
### 不同的集群使用不同的 cluster.name
cluster.name: bimap
### 默認是主機名
node.name: ${HOSTNAME}
### 根據路徑修改 可以多個
### 如在data下需新建
path.data: /data/opensearch
bootstrap.memory_lock: true
network.host: ${IP}
### 根據需求，可以連接多台主機，此處以單機模式做演示：
discovery.type: single-node
調整 JVM 設定
$ sudo vi /etc/opensearch/jvm.options
### 建議設置為記憶體的一半，如：記憶體為 8G，則設置為 4G
-Xms4g
-Xmx4g
啟動 Opensearch
$ sudo systemctl start opensearch $ sudo systemctl enable opensearch $ sudo systemctl status opensearch
驗證是否成功啟動
$ sudo curl -X GET https://${IP}:9200 -u 'admin:${admin-password}' -k
{
"name" : "cluster-2",
"cluster_name" : "bimap",
"cluster_uuid" : "xo7zevQoQtmqguLUTb4O4Q",
"version" : {
"distribution" : "opensearch",
"number" : <version>,
"build_type" : <build-type>,
"build_hash" : <build-hash>,
"build_date" : <build-type>,
"build_snapshot" : false,
"lucene_version" : <lucene-version>,
"minimum_wire_compatibility_version" : "7.10.0",
"minimum_index_compatibility_version" : "7.0.0"
},
"tagline" : "The OpenSearch Project: https://opensearch.org/"
}
OpenSearch Dashboards 設定
修改權限
$ sudo chown -R opensearch-dashboards. /etc/opensearch-dashboards
設定 opensearch_dashboards.yml 檔
$ sudo vi /etc/opensearch-dashboards/opensearch_dashboards.yml
opensearch.hosts: [https://localhost:9200]
opensearch.ssl.verificationMode: none
opensearch.username: ${username}
opensearch.password: ${password}
### 以下取消#
server.port: 5601
server.host: "0.0.0.0"
啟動 OpenSearch Dashbords
$ sudo systemctl start opensearch-dashboards.service $ sudo systemctl enable opensearch-dashboards.service $ sudo systemctl status opensearch-dashboards.service
有任何問題，或是想看新主題?
