6, Docker is commonly installed and pushed to alicloud

Posted by flight553 on Mon, 03 Jan 2022 09:33:09 +0100

Docker common installation

7.1 general steps

Search image - > pull image - > view image - > start image - > stop container - > remove container

docker search xxx` -> `docker pull xxx:TAG` -> `docker images xxx` -> `docker run [-itd -p port:port] [--name yyy] xxx:TAG` -> `docker stop container ID/yyy` -> `docker rm [-f] yyy

7.2 installing mysql


docker pull mysql:5.7

docker run -p 3306:3306 --name mysql \
-v /mydata/mysql/log:/var/log/mysql \
-v /mydata/mysql/data:/var/lib/mysql \
-v /mydata/mysql/conf:/etc/mysql \
-d mysql:5.7

Command description:

-p 12345:3306: map the 3306 port of the host to the 3306 port of the docker container.

--name mysql: running service name

-v /mydata/mysql/conf:/etc/mysql: mount the host / mydata/mysql/conf directory to the / etc/mysql directory of the container

-v /mydata/mysql/data:/var/lib/mysql: mount the host's / mydata/mysql/data directory to the container's / var/lib/mysql directory

-v /mydata/mysql/log:/var/log/mysql: mount the host's / mydata/mysql/log directory to the container's / var/log/mysql directory

-e MYSQL_ROOT_PASSWORD=10086: initialize the password of the root user.

-d mysql:5.7: the background program runs MySQL 5 seven

To connect remotely using sqlyog on windows:

Remember to turn off the host firewall or turn on port 3306

# Check the firewall information to see which ports can be accessed
firewall-cmd --list-all
# Turn off firewall
systemctl stop firewalld

# Or open 3306 port access (recommended)
firewall-cmd --permanent --zone=public --add-port=3306/tcp
systemctl restart firewalld

Use docker to back up the data in the mysql container

Export all databases in the docker mysql container to / mydata / mysql8 / all databases SQL file

docker exec myql Service container ID sh -c ' exec mysqldump --all-databases -uroot -p"10086" ' > /mydata/mysql8/all-databases.sql

# If UTF-16 encoding is used, replace >
docker exec myql Service container ID sh -c ' exec mysqldump --all-databases -uroot -p"10086" ' --result-file=/mydata/mysql8/all-databases.sql

mysql dump is a logical backup tool that comes with mysql. Command format: Official website mysqldump

mysqldump [option] Database name [Table name] > /route/filename.sql
mysqldump [option] --Database name [Option table name] > /route/filename.sql
mysqldump [option] --all-databases [option] > /route/filename.sql

Description of common options:

Parameter name abbreviation meaning
--host -h Server IP address
--port -P Server port number
--user -u mysql user name
--password -p mysql password
--database Specify the database to back up
--all-databases Back up all databases on mysql
--compact Compression mode produces less output
--comments Add comment information

7.3 installing redis

docker pull redis

docker run -p 6379:6379 -v /mydata/redis/data:/data -v /mydata/redis/conf/redis.conf:/usr/local/etc/redis/redis.conf  -d redis redis-server /usr/local/etc/redis/redis.conf --appendonly yes

--appendonly yes means AOF is used for persistence (redis uses rdb for persistence by default)

redis. Conf is a folder, not a file (whisper BB: is this redis.conf folder too ambiguous? And when redis server starts, isn't the string followed by the specified configuration file path? It's reasonable that redis.conf should be a configuration file);

On the host / mydata / redis / conf / redis Create a new redis.conf directory Conf file

vim /mydata/redis/conf/redis.conf 📎redis.conf.txt

Test redis cli connection: docker exec -it redis container ID redis cli

Test generation persistent file:

8, Publish local images to alicloud

8.1 image generation method

  • DockerFile mentioned earlier

  • Create a new image from the container: docker commit [OPTIONS] container ID [REPOSITORY[:TAG]]

    • OPTIONS option Description: - a: the author of the submitted image, - m: the description text at the time of submission

We previously made a centos containing vim and ifconfig - mycentos:0.1. Now we update it to 0.2 and generate a 0.2 image.

Let's see if mycentos:0.1 has a container docker ps -a. if not, create a container, docker run -itd mycentos:0.1.

docker commit -a mrlinxi -m "new contos 0.2 from 0.1" container ID mycentos:0.2

In this way, the image of mycentos:0.2 is obtained

8.2 push local images to alicloud

Log in to alicloud and enter the console

From the menu in the upper left corner, click search container image service:

Instance list - > individuals / enterprises (asking for money) do not need to create an instance. To create an instance, you need to set a repository password

Then create a mirror warehouse

Next, select local warehouse creation:

After the warehouse is created, there will be corresponding operation instructions:

# To log in to the warehouse for the first time, you need to enter the warehouse password we set before
docker login --username=Alibaba cloud account registry.cn-hangzhou.aliyuncs.com

docker tag [ImageId] registry.cn-hangzhou.aliyuncs.com/mrlinxi/mycentos:[Mirror version number]
docker push registry.cn-hangzhou.aliyuncs.com/mrlinxi/mycentos:[Mirror version number]

After submission, there will also be a submitted image locally.

We try to pull the image we just push ed from alicloud.

# Delete locally committed images
docker rmi -f registry.cn-hangzhou.aliyuncs.com/mrlinxi/mycentos:0.2.1

dokcer pull registry.cn-hangzhou.aliyuncs.com/mrlinxi/mycentos:0.2.1

Topics: Docker