Docker笔记

中标麒麟7.6 
linux version 3.10.0-693.e17.x86_64
CPU: Intel Xeon(R) Silver 4210 CPU @ 2.20GHz
docker-18.06.3-ce

下载docker-ce ： https://download.docker.com/linux/static/stable/x86_64/docker-18.06.3-ce.tgz

1. mv docker/* /usr/bin/

2. vim /etc/systemd/system/docker.service

[Unit]
Description=Docker Application Container Engine
documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target

[Service]
Type=notify
ExecStart=/usr/bin/dockerd --graph=/home/docker/data
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s

[Install]
WantedBy=multi-user.target

# docker 数据存储目录，与上面的--graph=/home/docker/data对应，默认路径在var下面，存储容量容易超标报错
mkdir -p /home/docker/data

3. chmod +x /etc/systemd/system/docker.service

4. systemctl daemon-reload 

5. systemctl enable docker.service

6. systemctl start docker

• Docker容器启动时报错：container init caused “write /proc/self/attr/keycreate: permission denied““: unknown

1. 编辑config文件：vi /etc/selinux/config
2. 将SELINUX=enforcing改为SELINUX=disable
3. 重启服务器
   以上需要重启服务器，还有一种临时解决方案。
4. setenforce 0

1. cat /proc/sys/vm/max_map_count

2. （若值太小则执行此命令修改）sysctl -w vm.max_map_count=262144

3.  新建网桥
docker network create app

docker pull elasticsearch:7.4.2

4. 启动镜像

docker run -d 
 --name elasticsearch 
 --network app 
 --restart=always 
 -e "discovery.type=single-node" 
 -p 9200:9200 -p 9300:9300 
 -v /home/docker/data/volume/esdata:/usr/share/elasticsearch/data 
 -v /home/docker/data/volume/esplugins:/usr/share/elasticsearch/plugins 
 elasticsearch:7.4.2


docker run --name elasticsearch -d -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -e "discovery.type=single-node" -p 9200:9200 -p 9300:9300 elasticsearch:7.4.2

1. https://github.com/medcl/elasticsearch-analysis-ik/releases
2. 解压到 /home/docker/volume/esplugins/ik 目录
3. 重启es： docker restart elasticsearch

1. docker pull kibana:7.4.2

2. 启动

docker run -d 
  --name=kibana 
  --network app 
  --restart=always 
  -p 5601:5601 
  -e ELASTICSEARCH_HOSTS=http://elasticsearch:9200 
  kibana:7.4.2

docker run -d 
 --name dm7 
 --network app 
 --restart=always 
 -p 5236:5236 
 dm7:latest

Dockerfile：基于已安装好达梦的镜像 dm7:1

FROM dm7:1
WORKDIR /home/dmdbms/bin
#开放端口
EXPOSE	5236 22
# VOLUME /home/dmdbms/dameng
ENTRYPOINT ./dmserver path="/home/dmdbms/dameng/dm.ini"

运行dm8镜像

docker import dm8_docker.tar dm8:v01

docker run -itd -p 5236:5236 --network app --name dm8 dm8:v01 /bin/bash /startDm.sh