Docker General¶
SSH to a Container¶
docker exec -it mysqldb "bash"
Update All Downloaded Images¶
docker images |grep -v REPOSITORY|awk '{print $1}'|xargs -L1 docker pull
Purging All Unused or Dangling Images¶
Purging All Unused or Dangling Images, Containers, Volumes, and Networks Docker provides a single command that will clean up any resources — images, containers, volumes, and networks — that are dangling (not associated with a container):
docker system prune
To additionally remove any stopped containers and all unused images (not just dangling images), add the -a flag to the command:
docker system prune -a
Portainer.io Docker UI management¶
Find Container IP¶
docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_name_or_id
Show all Containers¶
docker ps -a
Create mysql Docker with Mapping to Host¶
docker run --name mysqldb -v /data/mysql:/var/lib/mysql -e MYSQL_ROOT_PASSWORD="qweQWE123" -p 3306:3306 -it mysql/mysql-server:5.7
Exit Container Without Closing It¶
crtl+shift+D
Container Specific Logs (to view the output of commands running in container)¶
docker logs mysqldb
Create Volume and Map Container to it¶
docker volume create vol1 docker run --name mysqldb_map -v vol1:/var/lib/mysql -e MYSQL_ROOT_PASSWORD="qweQWE123" -p 3306:3306 -it mysql/mysql-server:5.7
View Details for Specific Docker¶
docker inspect mysqldb_map
Rename a Container¶
docker rename CONTAINER NEW_NAME
Copy Files Into Docker Container¶
docker cp 1.txt mycontainer:/1.txt
Run Docker to Map Port 9000 to Forward 3306¶
docker run -d -p 3306:9000 dockercloud/mysql
Allow Outbound Forwarding for the Container to the World¶
on the host server run the following command:
sysctl net.ipv4.conf.all.forwarding=1 iptables -P FORWARD ACCEPT