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[docker] failed to get D-Bus connection: Operation not permitted

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helix
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2017-08-03 17:35:09
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7548
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°ü·Ã¸µÅ©01
http://serverfault.com/questions/824975/failed-to-get-d-bus-connection-operation-not-permitted 
°ü·Ã¸µÅ©02
https://stackoverflow.com/questions/39169403/systemd-and-systemctl-within-ubuntu-docker-images 
º° »ý°¢¾øÀÌ µµÄ¿ À̹ÌÁö¸¦ ¾Æ·¡ ¸í·É¾î·Î ½ÇÇà½ÃÅ°°í,
(interactive + tty + detach)
docker run -itd centos:latest /bin/bash
docker exec ¸í·ÉÀ¸·Î detach ¸ðµå·Î ½ÇÇàµÈ µµÄ¿¿¡ ½©·Î ºÙ¾î¼­
docker exec -it 0cac64f0b0e1 /bin/bash
µµÄ¿ ¾È¿¡¼­ centos 7 ÀÇ systemd ¸í·ÉÀ» ³»¸®¸é ¾Æ·¡¿Í °°Àº ¿¡·¯ ¸Þ½ÃÁö¸¦ ¹ñ´Â´Ù.
[root@0cac64f0b0e1 /]# systemctl list-units
Failed to get D-Bus connection: Operation not permitted
ÀÌ¿¡ ´ëÇØ Ã£¾Æº¸´Ï ¿ª½Ã ¼­¹ö°èÀÇ ½ºÅÿÀ¹öÇ÷οìÀÎ ¼­¹öÆúÆ®¿¡ »ó¼¼ÇÑ ´äº¯ÀÌ ¿Ã¶ó¿Í ÀÖ´Ù.
https://serverfault.com/questions/824975/failed-to-get-d-bus-connection-operation-not-permitted

´ëÃæ ¹ø¿ªÇغ¸¸é...
±ÇÇѾø´Â(non-privileged) ÄÁÅ×À̳ʸ¦ ½ÇÇàÁßÀ̶ó »ý°¢µË´Ï´Ù.
systemd ´Â CAP_SYS_ADMIN capability °¡ ¿ä±¸µÇ´Âµ¥, 
µµÄ¿´Â º¸¾ÈÀ» À§ÇØ ±ÇÇѾø´Â ÄÁÅ×À̳ʿ¡¼­´Â ÇØ´ç capability ¸¦ È°¼ºÈ­ ½ÃÅ°Áö ¾Ê½À´Ï´Ù.
¶ÇÇÑ systemd ´Â ÄÁÅ×ÀÌ³Ê ³»ÀÇ cgroup ÆÄÀÏ ½Ã½ºÅÛ¿¡ ´ëÇØ RO(read only) Á¢±ÙÀ» ÇÊ¿ä·Î ÇÕ´Ï´Ù.
ÀÌ´Â "–v /sys/fs/cgroup:/sys/fs/cgroup:ro" ±¸¹®À» Ãß°¡ÇÏ¿© ÇØ°áÇÒ ¼ö ÀÖ½À´Ï´Ù.
¼­¹öÆúÆ® º»¹®¿¡´Â Dockerfile ±¸¹®À» »ç¿ëÇÏ¿©
µµÄ¿ À̹ÌÁö¸¦ »ý¼ºÇÏ°í, ºôµåÇÏ¿© À̹ÌÁö µî·ÏÇÏ°í ½ÇÇàÇÏ´Â Àüü ¸í·ÉÀÌ ÀÛ¼ºµÇ¾î Àִµ¥
docker build --rm -t centos7-systemd - < mydockerfile
½ÇÁ¦·Î Áß¿äÇÑ°Ç ¸¶Áö¸·ÀÇ docker run ¸í·É¾î ÀÌ´Ù.
D-Bus ¿À·ù ¸Þ½ÃÁö¸¦ ¸¸³µ´Ù¸é, ÀÌ¹Ì µµÄ¿ À̹ÌÁö¸¦ °®°í ÀÖÀ»°ÍÀÌ°í...

ÀÚ½ÅÀÌ °®°í ÀÖ´Â À̹ÌÁö¸¦ ¾Æ·¡¿Í °°Àº ¸í·É¾î·Î ¶ç¿ì°Ô µÇ¸é,
¼­¹öÆúÆ®¿¡¼­ ÀÛ¼ºÀÚ°¡ ¾ð±ÞÇÑ CAP_SYS_ADMIN capability ¿Í 
systemd °¡ ÇÊ¿ä·Î ÇÏ´Â /sys/fs/cgroup ¿¡ ´ëÇÑ ÀбⰡ °¡´ÉÇØÁø´Ù.
docker run --privileged -it -e container=docker -v /sys/fs/cgroup:/sys/fs/cgroup:ro centos:latest /usr/sbin/init
docker run ±¸¹®¿¡ ¸î°¡Áö ±º´õ´õ±â°¡ ºÙ¾î¾ß ÇÑ´Ù.
(ÀÌ ¹®Á¦ ÇØ°áÀ» À§ÇØ ¹Ýµå½Ã Ãß°¡µÇ¾î¾ß ÇÏ´Â ¿É¼ÇµéÀÌ´Ù)
1. --privileged
2. -v /sys/fs/cgroup:/sys/fs/cgroup:ro
3. /usr/sbin/init (init ¸í·É¾îÀÇ À§Ä¡: ¿ìºÐÅõÀÇ °æ¿ì /sbin/init ¡æ ½ÇÁ¦·Î´Â systemd À̸ç init,systemd Âü°í)
4. -e container=docker (¼­¹öÆúÆ®ÀÇ ±Û ÀÛ¼ºÀÚ ¿É¼Ç¿¡´Â Àִµ¥ Çö ¹®Á¦ ÇØ°á°ú´Â °ü°è¾ø´Â ¿É¼Ç; ȯ°æ°ª Àâ¾ÆÁÖ´Â ¿É¼Ç)

¹°·Ð ±âÁ¸¿¡ À̹ÌÁö ¿Ã¸± ¶§ ÁÖ´ø -it ¶Ç´Â -itd ¿Í °°Àº ¿É¼ÇÀº ±âº»ÀûÀ¸·Î Áà¾ßÇÑ´Ù.
CentOS / ¿ìºÐÅõ µÑ´Ù µ¿ÀÏ ¿É¼Ç(3¹ø ¿É¼Ç¸¸ ÆÄÀÏ À§Ä¡°¡ OS ¸¶´Ù ´Ù¸¦ ¼ö ÀÖ´Ù)À¸·Î Àß µÇ¾ú´Ù.

 °Ô½ÃÆÇ ±Û ¸ñ·Ï
No Subject Poster Hits Posted
14223 helix 4792 2017-11-07 13:24:26
14211 helix 4569 2017-09-29 17:23:58
helix 7548 2017-08-03 17:35:09
14169 helix 8182 2017-08-03 09:54:25
14151 helix 1869 2017-07-09 16:47:01
14140 helix 1824 2017-07-04 10:50:16
14135 helix 20997 2017-07-03 10:00:41
14131 helix 6846 2017-06-29 14:02:44
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