Docker?compose啟動服務遇到的問題小結(jié)

更新時間：2023年11月30日 10:45:41 作者：農(nóng)專猿

這篇文章主要介紹了Docker?compose啟動服務遇到的問題小結(jié),這個是檢驗我們的docker?compose掌握程度,因此里面的鏡像沒有提前拉取,掛載數(shù)據(jù)卷的目錄也沒有提前創(chuàng)建,本文給大家介紹的非常詳細,需要的朋友可以參考下

一、數(shù)據(jù)卷掛載權(quán)限問題

這是原始docker-compose.yaml文件

version: "3.8"
networks:
  my-net:
    name: gkynet
services:
  minio:
    image: "bitnami/minio:latest"
    container_name: minio
    ports:
      - "9000:9000"
      - "9001:9001"
    environment:
      - MINIO_ROOT_USER=root
      - MINIO_ROOT_PASSWORD=123456
    volumes:
      - "./minio/data:/bitnami/minio/data"
    networks:
      - my-net
  elasticsearch:
    image: "elasticsearch:7.17.5"
    container_name: es
    environment:
      - "TZ=Asia/Shanghai"
    ports:
      - "9200:9200"
    volumes:
      - "./es/certs:/usr/share/elasticsearch/config/certs"
      - "./es/data:/usr/share/elasticsearch/data"
    networks:
      - my-net
  nginx:
    image: "nginx:latest"
    container_name: nginx
    environment:
      - "TZ=Asia/Shanghai"
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - "./nginx/html:/usr/share/nginx/html"
    networks:
      - my-net

執(zhí)行docker compose up -d命令后，三個容器都沒有啟動成功。
執(zhí)行docker logs minio查看日志

/opt/bitnami/scripts/libminio.sh: line 364: /bitnami/minio/data/.root_user: Permission denied

其他兩個服務的日志也差不多，都是掛載的目錄沒有正確的權(quán)限。

解決辦法

使用以下命令設置目錄權(quán)限：

chmod -R 777 掛載的目錄路徑

二、Elasticsearch 啟動的引導檢查失敗

es報錯信息：

ERROR: [2] bootstrap checks failed. You must address the points described in the following [2] lines before starting Elasticsearch.
bootstrap check failure [1] of [2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
bootstrap check failure [2] of [2]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured

原因：

max virtual memory areas 的限制過低，需要增加到至少 262144。
默認的發(fā)現(xiàn)設置對于生產(chǎn)環(huán)境來說是不合適的，至少需要配置其中一個：discovery.seed_hosts、discovery.seed_providers 或 cluster.initial_master_nodes。

解決辦法

使配置es的環(huán)境變量：

elasticsearch:
    image: "elasticsearch:7.17.5"
    container_name: es
    environment:
      - "TZ=Asia/Shanghai"
      - "cluster.name=elasticsearch" #設置集群名稱為elasticsearch
      - "discovery.type=single-node" #以單一節(jié)點模式啟動
      - "ES_JAVA_OPTS=-Xms512m -Xmx1024m" #設置使用jvm內(nèi)存大小
    ports:
      - "9200:9200"
    volumes:
      - "./es/certs:/usr/share/elasticsearch/config/certs"
      - "./es/data:/usr/share/elasticsearch/data"
    networks:
      - my-net

三、minIO啟動失敗

minio報錯信息：

02:08:37.33 INFO ==> ** Starting MinIO setup **
minio 02:08:37.37 INFO ==> Starting MinIO in background...
minio 02:08:47.46 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:08:52.59 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:08:57.73 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:02.80 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:07.87 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:12.95 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:18.02 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:23.09 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:28.15 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:33.22 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:38.30 INFO ==> Adding local Minio host to 'mc' configuration...
minio 02:09:43.36 INFO ==> Adding local Minio host to 'mc' configuration...
Failed to add temporary MinIO server
minio 02:09:48.45 INFO ==> MinIO is already stopped...

啥也看不出來對不對??，這個問題我也在網(wǎng)上找了好久?？吹搅诉@篇

http://m.fzitv.net/server/3064586fv.htm

解決辦法

minio的賬號長度必須大于等于5，密碼長度必須大于等于8位）

minio:
    image: "bitnami/minio:latest"
    container_name: minio
    ports:
      - "9000:9000"
      - "9001:9001"
    environment:
      - MINIO_ROOT_USER=admin
      - MINIO_ROOT_PASSWORD=kaiyuan123
    volumes:
      - "./minio/data:/bitnami/minio/data"
    networks:
      - my-net

完整docker-compose文件

version: "3.8"
networks:
  my-net:
    name: gkynet
services:
  minio:
    image: "bitnami/minio:latest"
    container_name: minio
    ports:
      - "9000:9000"
      - "9001:9001"
    environment:
      - MINIO_ROOT_USER=admin
      - MINIO_ROOT_PASSWORD=kaiyuan123
    volumes:
      - "./minio/data:/bitnami/minio/data"
    networks:
      - my-net
  elasticsearch:
    image: "elasticsearch:7.17.5"
    container_name: es
    environment:
      - "TZ=Asia/Shanghai"
      - "cluster.name=elasticsearch" #設置集群名稱為elasticsearch
      - "discovery.type=single-node" #以單一節(jié)點模式啟動
      - "ES_JAVA_OPTS=-Xms512m -Xmx1024m" #設置使用jvm內(nèi)存大小
    ports:
      - "9200:9200"
    volumes:
      - "./es/certs:/usr/share/elasticsearch/config/certs"
      - "./es/data:/usr/share/elasticsearch/data"
    networks:
      - my-net
  nginx:
    image: "nginx:latest"
    container_name: nginx
    environment:
      - "TZ=Asia/Shanghai"
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - "./nginx/html:/usr/share/nginx/html"
    networks:
      - my-net

總結(jié)

折騰了快一天終于搞完了。說明一下，這個是檢驗我們的docker compose掌握程度，因此里面的鏡像沒有提前拉取，掛載數(shù)據(jù)卷的目錄也沒有提前創(chuàng)建。雖然docker compose up執(zhí)行后會自動幫你完成這些事，但正規(guī)的做法是把docker compose用到的東西提前準備好，這樣能減少很多麻煩。
如果對你有幫助，可以給個贊??

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