Difference between revisions of "Docker"
From Teknologisk videncenter
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Hello,world | Hello,world | ||
</source> | </source> | ||
| + | =Docker engine= | ||
| + | ==Directories== | ||
| + | ;/var/lib/docker | ||
| + | : Base directory | ||
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Latest revision as of 09:04, 29 September 2024
| command | Explanation |
|---|---|
| docker ps | Status of running containers |
| docker container ls | Status of running containers (As above) |
| docker run ubuntu | Run image ubuntu in containe (Terminates as its bash exits) - pull container if not present |
| docker run -d nginx | Run image nginx detach (as daemon stdin/stdout detached) |
| docker run -d -p 8080:80 nginx | Run image nginx detach (portmap redirect 8080->80) public to private - See rule with iptables -L -t nat -n or nft list ruleset |
| docker run -d -p 8080:80 -v /home/heth/nginx:/usr/share/nginx/html nginx | Same as above but with volume map. Actually mounts directory in container |
| docker run -it ubuntu | Run image ubuntu in container ( -it = interactive tty ) |
| docker pull nginx | pull container from repository (default docker hub) |
| docker inspect 1e5bdae517e7 | JSON dump of container config |
| docker container prune | Remove all stopped containers |
| docker exec -ti 1e5bdae517e7 bash | Run interactive bash in running container |
| docker attach 1e | attach your terminal's standard input, output, and error to a running container |
Container preservation
root@ub1:~# docker run -it --name heth alpine
/ # echo "Hello, alpine" > hethfile.txt
/ #<CTRL-D>
root@ub1:~# docker start -ai heth
/ # cat hethfile.txt
Hello, alpine
/ #<CTRL-D>
root@ub1:~# docker rm heth
Running command in container
# echo "print("Hello, world")" > /tmp/hello.py
# docker run -it -v /tmp:/app python python3 /app/hello.py
Hello,world
Docker engine
Directories
- /var/lib/docker
- Base directory