记一次docker启动失败问题总结Cannot connect to the Docker daemon at unix:/var/run/docker.soc

admin

Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.688767002+08:00" level=info msg="Starting up"
) U- ~+ l' Y/ u  P( {Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.691966214+08:00" level=info msg="parsed scheme: \"unix\"" module=grpc
Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.692007875+08:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.692053506+08:00" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock  <nil> 0 <nil>}] <nil> <nil>}" module=grpc
Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.692095723+08:00" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.694155125+08:00" level=info msg="parsed scheme: \"unix\"" module=grpc
& y. ]/ T/ H/ aJun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.694200596+08:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
& _1 V+ _3 k0 V) E) S% N) P% t0 GJun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.694221675+08:00" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock  <nil> 0 <nil>}] <nil> <nil>}" module=grpc
. s; j3 J. L! X( Q, ]- J5 wJun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.694237395+08:00" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
: _( ]" q; ~. @5 M4 l% F) Y: b4 FJun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.782587671+08:00" level=info msg="[graphdriver] using prior storage driver: overlay2"
) }$ z( y9 b* [( T8 F* xJun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.923229051+08:00" level=info msg="Loading containers: start."
Jun 22 11:15:41 openstack dockerd: time="2022-06-22T11:15:41.746420451+08:00" level=error msg="ecd807d55b2549900134475d67ba42c6f692c0d2db9058c5acc43c5d1a3651fb cleanup: failed to delete container from containerd: no such container"
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1、Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

答：

docker这种报错一般情况都是docker未启动对于这种情况只用重启docker就行了：

service docker restart  

还有一种情况则是docker配置文件出错按照提示查看报错，并找到相应位置进行更改：

systemctl status docker.service   或    journalctl -xn

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admin

解决过程：
编辑文件：
2 o; H( u/ J7 i[root@openstack ~]# vim /etc/docker/daemon.json
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! [& y: r% }+ F5 Y+ V{
     "bip": "150.17.10.1/16"
+ I9 z& I" V! m8 r. U: z }
1 I0 G7 O5 i6 _7 h  t2 ~" \
[root@openstack ~]# vim /etc/systemd/system/docker.service.d/kolla.conf

; ]* ~- `- o- V2 p[Service]
0 k) e% h! x( t0 p) V, zMountFlags=shared
ExecStart=
ExecStart=/usr/bin/dockerd --insecure-registry xx.xx.xx.xx:4000 --log-opt max-file=5 --log-opt max-size=50m

1 }+ i% O! n# y0 R系统重新reload
systemctl daemon-reload
重启docker服务：
* |4 l0 g9 ]  l  ^ systemctl restart docker.service
+ m% O. G6 M7 r' M7 e$ c. R检查：
[root@openstack ~]# docker ps  
CONTAINER ID   IMAGE                                                  COMMAND                  CREATED             STATUS                         PORTS     NAMES
9 S! w% s, T3 K, U

[root@openstack ~]#  docker info
Client:
Context:    default
Debug Mode: false
Plugins:
+ O; {& U0 s2 [  app: Docker App (Docker Inc., v0.9.1-beta3)
; q3 M: X/ ]9 r5 P$ b  buildx: Docker Buildx (Docker Inc., v0.8.2-docker)
8 X3 o# h5 W- Y9 J" \/ }9 w% q! v  scan: Docker Scan (Docker Inc., v0.17.0)
+ q- z$ O- H) \% T0 a2 u9 H6 i5 Q
+ c' u; A" b5 o* l! P, r0 AServer:
9 V1 p: R3 q3 }2 ` Containers: 31
9 T* K1 [& b& V+ t  Running: 30
  Paused: 0
  Stopped: 1
Images: 31
2 x: w% ^- O6 [5 \ Server Version: 20.10.17
Storage Driver: overlay2
  Backing Filesystem: xfs
  Supports d_type: true
/ ]% }0 {0 _3 J  u  Native Overlay Diff: true
8 ^3 I, D9 m  l0 i! `+ j& ]  userxattr: false
: w+ I% ]# ~/ y Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
$ ]5 b+ L. w9 ^+ \ Plugins:
. i8 w( h+ ~9 l" a. H  Volume: local
" c# K0 ?- a0 N( }  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
Default Runtime: runc
: S0 K3 s$ I' l; {, w  E Init Binary: docker-init
containerd version: 10c12954828e7c7c9b6e0ea9b0c02b01407d3ae1
runc version: v1.1.2-0-ga916309
init version: de40ad0
5 t  T, V2 H% s: O9 J' ^ Security Options:
  seccomp
   Profile: default
& F. E2 K3 t9 V% i! o8 v- ~ Kernel Version: 3.10.0-1160.el7.x86_64
- w8 d  q* t, s- Q2 X; L Operating System: CentOS Linux 7 (Core)
1 x& O" o) L& r* V OSType: linux
Architecture: x86_64
- d6 X: Y) Y) H: S# Z CPUs: 16
Total Memory: 15.51GiB
! z$ y# g  }  u) z1 a; O( \0 b Name: openstack.novalocal
ID: IL2Z:QYIC:CVO4:DKSU:RAVA:ONC2:ZSBT:JLHA:FBWV:JY7W:E7SS:W7AA
4 Y. m& B$ K" z  Q6 O Docker Root Dir: /var/lib/docker
7 \3 [& z9 {8 Z4 X1 R& a" ?  m" M Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
9 R2 O  y7 g1 I. U6 ^ Insecure Registries:
+ g/ |( N8 f: f/ z4 n8 ?8 h  192.168.0.75:4000
$ [0 g+ i. N, W. m3 ^' T* T9 E  127.0.0.0/8
Live Restore Enabled: false
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