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：
/ x( ?+ Q5 S) U; }) ^3 e- X3 {/ ~- q   # docker run --privileged -ti  docker.io/centos:7 /usr/sbin/init &

Unable to find image 'centos:7' locally
( A& D* a" e' w/ d6 {7: Pulling from library/centos
7dc0dca2b151: Pull complete
! L# I! q* B2 h. cDigest: sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
Status: Downloaded newer image for centos:7

& k0 _5 [1 t0 n8 I5 k- s

: G: X* \1 K+ ?# M* H) Q# docker run --privileged -it centos /usr/sbin/init
Unable to find image 'centos:latest' locally
" B9 z' J/ ~8 W) W& glatest: Pulling from library/centos
7dc0dca2b151: Pull complete
0 A2 j  X5 p# D( WDigest: sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
Status: Downloaded newer image for centos:latest

$ w4 i- M  I% V+ A进入到docker容器中，安装httpd软件，并启动httpd服务。
/ d' x, g3 m7 N* k* D9 \4 Y# docker exec -it dcb5c79348a0 /bin/bash

[root@dcb5c79348a0 /]# systemctl start httpd
[root@dcb5c79348a0 /]# systemctl status httpd.service
● httpd.service - The Apache HTTP Server
# G% [$ ~1 o1 ^! m   Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)
7 t$ a; p  E3 a$ z   Active: active (running) since Thu 2018-06-21 07:38:03 UTC; 11s ago
     Docs: man:httpd(8)
           man:apachectl(8)
Main PID: 199 (httpd)
   Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
  ^5 s) K6 h% W" B2 h  h   CGroup: /docker/dcb5c79348a0ba92f0ccf225e2f9c42810b6f8ad7884400a968c767ae5569694/system.slice/httpd.service
           ├─199 /usr/sbin/httpd -DFOREGROUND
* ^6 e+ S* l( p3 H3 C1 V% Z; V$ ^" O           ├─200 /usr/sbin/httpd -DFOREGROUND
1 e8 q7 p" T, d           ├─201 /usr/sbin/httpd -DFOREGROUND
% `& g# b$ s4 H. s, V& z0 d) W           ├─202 /usr/sbin/httpd -DFOREGROUND
           ├─203 /usr/sbin/httpd -DFOREGROUND
% B6 U, c$ e3 a( M0 f           └─204 /usr/sbin/httpd -DFOREGROUND
           ‣ 199 /usr/sbin/httpd -DFOREGROUND

* t, l( K$ y  g* q' b6 U+ a0 _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
- B6 u( T; b8 k2 {# gJun 21 07:38:03 dcb5c79348a0 systemd[1]: Started The Apache HTTP Server.
7 e3 ?9 c, c  ?& gHint: Some lines were ellipsized, use -l to show in full.
8 Z% T9 O4 S7 h2 q% J

admin

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

Status: Downloaded newer image for centos:latest
Failed to mount tmpfs at /run: Operation not permitted
[!!!!!!] Failed to mount API filesystems, freezing.

) h: e/ E; `: b6 L4 A4 c8 f3 ?4 U
6 O, \  T  N  d2 c0 k- }7 M[root@dockerserver ~]# docker exec -it 50b2bbf20091 /bin/bash
[root@50b2bbf20091 /]# yum install -y httpd
- x( M. i+ t% |$ K5 Q/ J
[root@50b2bbf20091 /]# systemctl start httpd.service
Failed to get D-Bus connection: Operation not permitted
" Z/ b$ D6 P5 T+ }2 y
5 M8 L" m, g3 L# L$ b
* B5 L+ j% s4 _7 e" bdocker run --privileged -it centos /usr/sbin/init  &    #这样的方式建立的docker即可
( O" k% E, A" f3 D3 o  p, e

admin

[root@dockerserver ~]# docker ps -a
6 B3 P0 H3 y' S& ]: E- j( ]CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
50b2bbf20091        centos              "/usr/sbin/init"    4 minutes ago       Up 4 minutes                            distracted_bhabha
6 i  {# ^4 A& ^, r6 c% P[root@dockerserver ~]# docker stop 50b2bbf20091
, @6 T+ k$ u4 O( ^50b2bbf20091
4 V# C: j) Q* a1 S, s[root@dockerserver ~]# docker rm 50b2bbf20091
- `2 R" @) Y7 F" H' W50b2bbf20091
1 D) [7 B$ v$ W2 Y6 B: C( O[root@dockerserver ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
centos              latest              49f7960eb7e4        2 weeks ago         200MB


[root@dockerserver ~]# docker rmi 49f7960eb7e4
Untagged: centos:latest
Untagged: centos@sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
8 N& {& i* V( g" J: u6 K3 T9 t8 lDeleted: sha256:49f7960eb7e4cb46f1a02c1f8174c6fac07ebf1eb6d8deffbcb5c695f1c9edd5
Deleted: sha256:bcc97fbfc9e1a709f0eb78c1da59caeb65f43dc32cd5deeb12b8c1784e5b8237
" I3 f4 Q4 Q* o

admin

[root@dockerserver ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
[root@dockerserver ~]# docker ps -a
6 m: r! {, e& a% A5 bCONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES