配置centos7解决 docker Failed to get D-Bus connection 报错

admin

在创建docker时添加些参数：
   # docker run --privileged -ti  docker.io/centos:7 /usr/sbin/init &

Unable to find image 'centos:7' locally
7: Pulling from library/centos
7dc0dca2b151: Pull complete
0 m/ M/ C/ Q+ Y2 K+ D+ y; rDigest: sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
Status: Downloaded newer image for centos:7


2 b  t3 u: D/ w
# docker run --privileged -it centos /usr/sbin/init
( T9 i) I6 M4 r: m* j7 HUnable to find image 'centos:latest' locally
% y/ }  }2 X; a7 N1 L/ P/ Ulatest: Pulling from library/centos
% ^; q1 \$ I# c4 d* j# I6 _! p7dc0dca2b151: Pull complete
Digest: sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
  a1 Y5 K& ?9 I  F) t! w! mStatus: Downloaded newer image for centos:latest

进入到docker容器中，安装httpd软件，并启动httpd服务。
# docker exec -it dcb5c79348a0 /bin/bash

3 l0 D3 V: D8 E2 `[root@dcb5c79348a0 /]# systemctl start httpd
[root@dcb5c79348a0 /]# systemctl status httpd.service
● httpd.service - The Apache HTTP Server
% t. h; y4 C/ ~0 A+ a* L   Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)
   Active: active (running) since Thu 2018-06-21 07:38:03 UTC; 11s ago
& m* z; f, y# J     Docs: man:httpd(8)
" [' J+ t% k0 F& B& s" i9 }" G2 ^           man:apachectl(8)
Main PID: 199 (httpd)
   Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
   CGroup: /docker/dcb5c79348a0ba92f0ccf225e2f9c42810b6f8ad7884400a968c767ae5569694/system.slice/httpd.service
- t* |8 _6 a3 ~3 |4 a* [           ├─199 /usr/sbin/httpd -DFOREGROUND
6 G4 D6 a2 ?2 r5 ]' T# [+ P           ├─200 /usr/sbin/httpd -DFOREGROUND
6 \' N) ^- e* L: N           ├─201 /usr/sbin/httpd -DFOREGROUND
           ├─202 /usr/sbin/httpd -DFOREGROUND
3 @3 P$ |: k' f% L4 Z7 T! J           ├─203 /usr/sbin/httpd -DFOREGROUND
           └─204 /usr/sbin/httpd -DFOREGROUND
           ‣ 199 /usr/sbin/httpd -DFOREGROUND

% O& q' }' m. D3 o" O% |Jun 21 07:38:03 dcb5c79348a0 systemd[1]: Starting The Apache HTTP Server...
Jun 21 07:38:03 dcb5c79348a0 httpd[199]: AH00558: httpd: Could not reliably ...e
Jun 21 07:38:03 dcb5c79348a0 systemd[1]: Started The Apache HTTP Server.
2 u) s1 J8 k3 c: Z1 d. qHint: Some lines were ellipsized, use -l to show in full.
: C3 y5 u) \0 G& }

admin

docker run  -it centos /usr/sbin/init &

4 A2 G% |: W1 O2 oStatus: Downloaded newer image for centos:latest
Failed to mount tmpfs at /run: Operation not permitted
[!!!!!!] Failed to mount API filesystems, freezing.
( k; I) Q7 w' t$ u5 r1 c/ B" A- N
' `" \, ]' ]: F* j& f+ P, e$ a1 g$ d4 h
[root@dockerserver ~]# docker exec -it 50b2bbf20091 /bin/bash
; O3 ^2 X' \* d" I6 V[root@50b2bbf20091 /]# yum install -y httpd

& {5 _, B3 w3 A) w0 s" f[root@50b2bbf20091 /]# systemctl start httpd.service
Failed to get D-Bus connection: Operation not permitted

/ f* V8 |# M% y% c4 y+ o
docker run --privileged -it centos /usr/sbin/init  &    #这样的方式建立的docker即可

admin

[root@dockerserver ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
9 A( j/ o2 W8 W) ?% X, D50b2bbf20091        centos              "/usr/sbin/init"    4 minutes ago       Up 4 minutes                            distracted_bhabha
1 v  S5 [8 V" d  _" F[root@dockerserver ~]# docker stop 50b2bbf20091
50b2bbf20091
[root@dockerserver ~]# docker rm 50b2bbf20091
50b2bbf20091
% S, I# r# g; t( ^. h/ j[root@dockerserver ~]# docker images
! t1 w' X3 h! {2 Z/ p  fREPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
/ y6 h: [6 s! Q8 U8 b" r* `centos              latest              49f7960eb7e4        2 weeks ago         200MB


[root@dockerserver ~]# docker rmi 49f7960eb7e4
' H+ v- I' }" A  J' eUntagged: centos:latest
5 `5 f0 J7 M, l* {3 V' c8 d" ?Untagged: centos@sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
Deleted: sha256:49f7960eb7e4cb46f1a02c1f8174c6fac07ebf1eb6d8deffbcb5c695f1c9edd5
Deleted: sha256:bcc97fbfc9e1a709f0eb78c1da59caeb65f43dc32cd5deeb12b8c1784e5b8237

admin

[root@dockerserver ~]# docker images
  }/ I! W' T' N- g0 V3 xREPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
" B0 C3 b3 d3 H; P) z2 l2 }[root@dockerserver ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES