1.常用命令
2.獲取container ip地址
3.安裝ssh
4.網絡
5.向docker拷貝文件

5.1.docker cp hadoop/ 16859e097ec7:/tmp/hadoop

6.docker創建網絡失敗需檢查iptables中是否有docker chain，iptables重啟會導致docker chain丟失

6.1.[錯誤信息]sudo docker network create --subnet=172.18.0.0/16 dockernetwork報Error response from daemon: Failed to Setup IP tables: Unable to enable SKIP DNAT rule: (iptables failed: iptables --wait -t nat -I DOCKER -i br-e9de5855aefb -j RETURN: iptables: No chain/target/match by that name. (exit status 1))
6.2.相關命令

6.2.1.sudo iptables -L -n -t nat | grep DOCKER
6.2.2.sudo systemctl restart docker
6.2.3.sudo systemctl iptables save

6.3.參考

6.3.1.創建網絡
6.3.2.設定端口映射:sudo docker run -it -p 9870:9870 -p 8088:8088 --name hadoop_172.18.0.2 --network=dockernetwork --ip 172.18.0.2 peterwangsl:hadoop3.0.0 /bin/bash
6.3.3. 掛載文件夾:sudo docker run -it -p 1521:1521 --name zzb_oracle_172.18.0.4 --network=dockernetwork --ip 172.18.0.4 -v /software/oracle/data/zzb:/home/oracle/app/oracle/oradata/ registry.cn-hangzhou.aliyuncs.com/helowin/oracle_11g:latest /bin/bash

7.我的倉庫

8.docker container動態擴展根目錄

8.1 xfs_growfs /dev/mapper/docker-*-$container_id

9.docker運行springboot jar

docker run -d \
--restart=always \
-v /home/data/uploadPath:/home/data/uploadPath \
-v /home/webapp:/home/webapp \
-p 48080:80 \
--name sc-admin \
-w /home/webapp \
-e TZ="Asia/Shanghai" \
-e "SPRING_PROFILES_ACTIVE=court-dev" \
-e "SERVER.PORT=80" \
-e "JAVA_OPTS=-Dname=sc-admin.jar -Duser.timezone=Asia/Shanghai -Xms512M -Xmx512M -XX:PermSize=256M -XX:MaxPermSize=512M -XX:+HeapDumpOnOutOfMemoryError -XX:+PrintGCDateStamps  -XX:+PrintGCDetails -XX:NewRatio=1 -XX:SurvivorRatio=30 -XX:+UseParallelGC -XX:+UseParallelOldGC" \
dockette/jdk8:latest /usr/bin/java -jar \
/home/webapp/sc-admin.jar

10、通過代理安裝docker-ce

1.參照1
2.centos阿里源問題解決
3.containerd.io-1.2軟件包與預期下載的不符 ,可以安裝舊版dockeryum -y install docker-ce-18.06.0.ce-3.el7
4.更改安裝目錄、鏡像

/etc/docker/daemon.json
{
        "registry-mirrors": ["http://aad0405c.m.daocloud.io","http://hub-mirror.c.163.com"],
        "graph": "/data/software/docker"
}

5.配置代理
1、使用docker pull hub.c.163.com/library/nginx

6.docker鏡像

7.docker安裝gitlab,更改端口后運行docker exec -ti gitlab gitlab-ctl restart

1.備份gitlab，配置文件/etc/gitlab/gitlab.rb的gitlab_rails['backup_path']，備份命令/bin/docker exec -t gitlab gitlab-rake gitlab:backup:create
2.備份docker

docker commit -a ‘汪敏’ -m ‘gitlab備份’ 9e7849fa0dbe wangmin/gitlab:3.0

-a 作者
-m 提交的注釋信息
9e7849fa0dbe 容器id
wangmin/gitlab:3.0 鏡像名稱:版本號

docker save b8c5a9990c6e > ./gitlab20190606.tag.gz

3.升級gitlab，使用cp -ra拷貝數據文件
4.chrome插件gitmaster

11.查看某container啟動參數docker ps --no-trunc -f name=X
12.更改容器環境變量

1、systemctl stop docker后更改/var/lib/docker/containers/[container-id]/config.json
2、docker exec -it [container-name] env查詢環境變量，也可使用inspect命令

13.docker login IP:Port -u ${username} -p ${password}支持同時登錄不同地址

14.K8s重啟deployment下pod

kubectl scale deployment ${deploymentname}  --replicas=0 -n ${namespace}
kubectl scale deployment ${deploymentname}  --replicas=X -n ${namespace}

15.K8s deployment yaml配置中如含有特殊字符$可以使用$$轉義為$