6、Docker-常用安裝：Zookeeper、ES、Kafka

一、Docker安裝Zookeeper

##查詢zookeeper鏡像
docker search zookeeper
##拉去zookeeper鏡像
docker pull zookeeper:latest

##本地創建zookeeper的掛載目錄
mkdir -p /opt/software/myfile/zookeeper/conf
mkdir -p /opt/software/myfile/zookeeper/data
mkdir -p /opt/software/myfile/zookeeper/datalog

cd /opt/software/myfile/zookeeper

##運行一個zookeeper 複製它的配置文件到本地
docker run --name zookeeper -p 2181:2181 -d zookeeper

docker container cp zookeeper:/conf .

##關閉並刪除docker
docker stop zookeeper
docker rm zookeeper

##啓動一個新的zookeeper容器，並掛載本地配置和數據目錄
docker run --name zookeeper \
-p 2181:2181 \
-v /opt/software/myfile/zookeeper/conf:/conf \
-v /opt/software/myfile/zookeeper/data:/data \
-v /opt/software/myfile/zookeeper/datalog:/datalog \
--restart=always \
-d zookeeper

二、Docker安裝Elasticsearch

1、拉取鏡像

docker pull elasticsearch:7.12.0


2、創建本地掛載目錄

mkdir -p /opt/software/myfile/elasticsearch/config
mkdir -p /opt/software/myfile/elasticsearch/data
mkdir -p /opt/software/myfile/elasticsearch/plugins

權限設置
sudo chmod -R 777 /opt/software/myfile/elasticsearch/


3、配置文件

echo "http.host: 0.0.0.0" >> /opt/software/myfile/elasticsearch/config/elasticsearch.yml


4、創建容器

docker run --name elasticsearch -p 9200:9200  -p 9300:9300 \
 -e "discovery.type=single-node" \
 -e ES_JAVA_OPTS="-Xms84m -Xmx512m" \
 -v /opt/software/myfile/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
 -v /opt/software/myfile/elasticsearch/data:/usr/share/elasticsearch/data \
 -v /opt/software/myfile/elasticsearch/plugins:/usr/share/elasticsearch/plugins \
 -d elasticsearch:7.12.0


說明：

-p 端口映射
-e discovery.type=single-node 單點模式啓動
-e ES_JAVA_OPTS="-Xms84m -Xmx512m"：設置啓動佔用的內存範圍
-v 目錄掛載
-d 後臺運行


5、其他命令

docker ps  查看是否啓動
docker logs elasticsearch  啓動日誌查詢
docker restart elasticsearch   重啓
docker exec -it elasticsearch bash 進入

異常處理：

異常一：文件夾未設置所有用戶讀寫執行權限，處理：sudo chmod -R 777 /opt/software/myfile/elasticsearch/