This is a fork from kvaps/fake-systemd.
Shell script using start-stop-daemon, instead of using the original systemd: systemctl + dbus + privileges + seccomp + x packages + conjunction of Mercury and Venus.
This project is effectively unmaintained. I will do my best to shepherd pull requests, but cannot guarantee a prompt response and do not have bandwidth to address issues or add new features. Please let me know via an issue if you'd be interested in taking ownership of fake-systemd.
curl -LO https://github.com/gmt4/fake-systemd/raw/master/systemctl-fake
chmod u+x systemctl-fake
bash systemctl-fakeThe container will only compile start-stop-daemon and put the file in systemctl.
Build
$ docker build -t fake-systemd .Run interactive docker
$ docker run --rm -it fake-systemd bashExample with httpd
[root@ff6625414fd4 /]# yum install httpd -y
[root@ff6625414fd4 /]# systemctl start httpd
[root@ff6625414fd4 ~]# systemctl status httpd
● httpd.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/httpd.service; disabled; vendor preset: NI)
Active: active (running) since Sun Mar 26 08:54:46 2023
Docs: man:httpd(8) man:apachectl(8)
Main PID: 1848 (httpd)
Memory: 0.0%
CGroup: /system.slice/httpd.service
└─1848 /usr/sbin/httpd
[root@ff6625414fd4 ~]# curl -XHEADER localhost
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
[root@ff6625414fd4 ~]# systemctl stop httpd
[root@ff6625414fd4 ~]# curl -XHEADER localhost
curl: (7) Failed connect to localhost:80; Connection refusedExample with httpd enable/disable
[root@ff6625414fd4 ~]# systemctl enable httpd
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
[root@ff6625414fd4 ~]# systemctl is-enabled httpd
enabled
[root@ff6625414fd4 ~]# systemctl is-active httpd
failed
[root@ff6625414fd4 ~]# systemctl status httpd
● httpd.service - The Apache HTTP Server
Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: not_implemented)
Active: failed (Result: not_implemented)
[root@ff6625414fd4 ~]# systemctl start httpd
[root@ff6625414fd4 ~]# systemctl is-active httpd
activeExample with sshd
[root@ff6625414fd4 ~]# yum install -y openssh-clients openssh-server sshpass
[root@ff6625414fd4 ~]# systemctl start sshd
[root@ff6625414fd4 ~]# systemctl status sshd
● sshd.service - OpenSSH server daemon
Loaded: loaded (/lib/systemd/system/sshd.service; disabled; vendor preset: NI)
Active: active (running) since Sun Mar 26 08:43:25 2023
Docs: man:sshd(8) man:sshd_config(5)
Main PID: 977 (sshd)
Memory: 0.0%
CGroup: /system.slice/sshd.service
└─977 /usr/sbin/sshd -D
[root@ff6625414fd4 ~]# echo "root:docker" | chpasswd
[root@ff6625414fd4 ~]# sshpass -p docker ssh -oStrictHostKeyChecking=no localhost uptime
09:29:28 up 5 days, 18:14, 0 users, load average: 0.00, 0.02, 0.05Unit Commands:
- start
- stop
- restart
- is-active
- status: works with the pidfile, if a PIDfile options isn't defined, one will be created in /run/UNIT_NAME.pid.
Unit File Commands:
- enable
- disable
- is-enabled
Variables:
- MAINPID
Specifiers:
- %i
- %I
- %n
- %N
Unit Options:
- Description
- Documentation
Install Options:
- WantedBy
Service Options:
- EnvironmentFile: if starting with a minus/dash (ex EnvironmentFile=-/etc/sysconfig/myconfig), errors are ignored
- ExecStart
- ExecStartPost
- ExecStartPre
- ExecStop
- ExecStopPost
- ExecStopPre
- PIDFile
- Type (oneshot, simple, notify and forking only)
- User
- WorkingDirectory
Exec[Start|Stop][Post|Pre] commands with \ and multiples occurrence are supported well.
If a command starts with a minus/dash, the error is ignored.
- See LICENSE
Original fake-systemdCopyright (c) 2017 kvaps Licence MIT https://opensource.org/licenses/MITstart-stop-daemonis under public domain, see https://github.com/daleobrien/start-stop-daemon#notes
Many thanks to Ahmet Demir ahmet2mir for many improvements and continue development this script.