Docker containers are designed to run a single foreground process, and using systemctl within a container might not work as expected because systemctl is typically used in systems with systemd as the init system, and Docker containers usually don’t have a full init system.

If you need to run multiple services or processes within a container, you might want to consider using a process manager that is more suited for container environments. Some alternatives include supervisord, runit, or simply running multiple commands in your Dockerfile.

Here’s a basic example using supervisord:

𝐚) 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝗨𝗯𝘂𝗻𝘁𝘂

𝐏𝐮𝐥𝐥 𝐈𝐦𝐚𝐠𝐞 𝐜𝐨𝐦𝐦𝐚𝐧𝐝 :

docker run -d --name Linuxamination --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro jrei/systemd-ubuntu:20.04

𝐋𝐨𝐠 𝐢𝐧𝐭𝐨 𝐭𝐡𝐞 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 :

docker exec -it Linuxamination bash

𝐛) 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝗖𝗲𝗻𝘁𝗢𝗦

𝐏𝐮𝐥𝐥 𝐈𝐦𝐚𝐠𝐞 𝐜𝐨𝐦𝐦𝐚𝐧𝐝 :

docker run -d --name linuxaminationC8 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro alekseychudov/centos8-systemd

𝐋𝐨𝐠 𝐢𝐧𝐭𝐨 𝐭𝐡𝐞 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 :

docker exec -it linuxaminationC8 bash

𝐜) 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝐃𝐞𝐛𝐢𝐚𝐧

𝐏𝐮𝐥𝐥 𝐈𝐦𝐚𝐠𝐞 𝐜𝐨𝐦𝐦𝐚𝐧𝐝 :

sudo docker run -d --name systemd-debian --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro jrei/systemd-debian:11

𝐋𝐨𝐠 𝐢𝐧𝐭𝐨 𝐭𝐡𝐞 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 :

sudo docker exec -it systemd-debian bash

𝐝) 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝗳𝗲𝗱𝗼𝗿𝗮

𝐏𝐮𝐥𝐥 𝐈𝐦𝐚𝐠𝐞 𝐜𝐨𝐦𝐦𝐚𝐧𝐝 :

sudo docker run -d --name systemd-fedora --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro jrei/systemd-fedora

𝐋𝐨𝐠 𝐢𝐧𝐭𝐨 𝐭𝐡𝐞 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 :

sudo docker exec -it systemd-fedora bash

𝗲) 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝗥𝗲𝗱𝗵𝗮𝘁 𝗟𝗶𝗻𝘂𝘅

𝐏𝐮𝐥𝐥 𝐈𝐦𝐚𝐠𝐞 𝐜𝐨𝐦𝐦𝐚𝐧𝐝 :

sudo docker run -d --name linuxamination --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro registry.access.redhat.com/ubi8/ubi-init:8.1

𝐋𝐨𝐠 𝐢𝐧𝐭𝐨 𝐭𝐡𝐞 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 :

sudo docker exec -it linuxamination bash

𝐟) 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝐀𝐥𝐦𝐚𝐋𝐢𝐧𝐮𝐱

𝐏𝐮𝐥𝐥 𝐈𝐦𝐚𝐠𝐞 𝐜𝐨𝐦𝐦𝐚𝐧𝐝 :

sudo docker run -d --name almalinuxamination --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro almalinux/8-init

𝐋𝐨𝐠 𝐢𝐧𝐭𝐨 𝐭𝐡𝐞 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 :

sudo docker exec -it almalinuxamination bash

 

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