<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr"> <p>Any suggestions on how to instrument systemd inside a CentOS 7 container (running under docker 1.13 Fedora 27 beta) to determine why it doesn't launch logind journald dbus-daemon and other units?</p> <p><br> </p> <p>What is the main reason that systemd-journald would fail to launch?</p> <p><br> </p> <p>The container was created under Fedora 26 and configured to just launch sshd:</p> <p><br> </p> <p></p> <div>FROM centos:7</div> <div>ENV container docker</div> <div>STOPSIGNAL SIGRTMIN+3</div> <div>CMD [ "/sbin/init" ]</div> <div><span style="font-size: 12pt;">RUN yum -y install systemd openssh-server procps-ng; systemctl enable sshd</span><br> </div> <div>RUN echo 'root:passwordxxxxxxxxxxxxxxxxxxxxxxxxxxxx'<span> | chpasswd</span></div> <div><span><br> </span></div> <div><span>(I amrelying on all the oci hooks to mount cgroups etc with the correct permissions and labels).</span></div> <div><span><br> </span></div> <div><span>Under Fedora 26, docker exec container ps -ef </span></div> <div><span> <div>UID PID PPID C STIME TTY TIME CMD</div> <div>root 1 0 0 11:51 ? 00:00:00 /sbin/init</div> <div>root 17 1 0 11:51 ? 00:00:00 /usr/lib/systemd/systemd-journald</div> <div>root 25 1 0 11:51 ? 00:00:00 /usr/lib/systemd/systemd-logind</div> <div>dbus 26 1 0 11:51 ? 00:00:00 /bin/dbus-daemon --system --address=sys</div> <div>root 27 1 0 11:51 ? 00:00:00 /usr/sbin/sshd -D</div> <div><br> </div> Under Fedora 27 beta:</span></div> <div><span style="font-size: 12pt;">UID PID PPID C STIME TTY TIME CMD</span><br> </div> <div><span> <div style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"> root 1 0 0 11:51 ? 00:00:00 /sbin/init</div> <div style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"> <br> </div> <div style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"> We can't seem to startup journald and friends. /var/lib/docker/ is unchanged from Fedora 26.</div> <div style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"> When I boot back into Fedora 26 and launch the container all the units after /sbin/init work.</div> <div style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"> <br> </div> <div style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"> Richard</div> <div style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"> <br> </div> <br> </span></div> <div><span><br> </span></div> <br> <p></p> </div> </body> </html>