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"
; X! V, x4 [6 `# V; vJun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.691966214+08:00" level=info msg="parsed scheme: \"unix\"" module=grpc
% H& b& Y4 {3 ]8 M/ qJun 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
Jun 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
  V" z0 h7 @! |$ n$ r) vJun 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
* I: x. M- |# B4 YJun 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
' F# \3 ^4 ~2 \) T. T8 `2 A1 \Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.782587671+08:00" level=info msg="[graphdriver] using prior storage driver: overlay2"
Jun 22 11:15:38 openstack dockerd: time="2022-06-22T11:15:38.923229051+08:00" level=info msg="Loading containers: start."
: m5 G5 e* v0 @) `$ c& aJun 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：
7 J" }  d' D7 \0 z3 }) e8 u[root@openstack ~]# vim /etc/docker/daemon.json
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{
     "bip": "150.17.10.1/16"
}

7 K& S: E' m7 ~5 A: x) N! T2 u[root@openstack ~]# vim /etc/systemd/system/docker.service.d/kolla.conf
' z  Z% x4 |) I7 a9 q" J4 X
5 |: Z$ M3 N& O[Service]
* O0 ^8 ~9 {" K- r3 jMountFlags=shared
ExecStart=
0 s1 c6 G; c! D& |, k4 p( D4 }ExecStart=/usr/bin/dockerd --insecure-registry xx.xx.xx.xx:4000 --log-opt max-file=5 --log-opt max-size=50m
5 f4 W5 E$ h% F  A8 D) a
$ @: a! B! [0 x系统重新reload
0 M8 u! }/ F) o; k: w9 q, w) L2 ]systemctl daemon-reload
重启docker服务：
: @9 v8 G, _, D0 @# Q systemctl restart docker.service
0 Y. |! ~% ?# f9 C+ w; |' l检查：
[root@openstack ~]# docker ps  
7 f; p) ]2 C. b/ \CONTAINER ID   IMAGE                                                  COMMAND                  CREATED             STATUS                         PORTS     NAMES

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[root@openstack ~]#  docker info
Client:
Context:    default
1 I  p* C9 h; k  w2 M5 u Debug Mode: false
Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Docker Buildx (Docker Inc., v0.8.2-docker)
  scan: Docker Scan (Docker Inc., v0.17.0)
% w* m7 \. M. F8 K* E* G
Server:
) m& P  |1 c5 [/ W0 n" [% e+ m Containers: 31
  Running: 30
  Paused: 0
  Stopped: 1
3 s# j+ N; b' C+ G% A' G# c Images: 31
Server Version: 20.10.17
! y  k. N' B. o) Z Storage Driver: overlay2
  Backing Filesystem: xfs
  Supports d_type: true
' A' A! A6 J  Z2 j( i+ k9 C  Native Overlay Diff: true
  userxattr: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
7 X4 r- c! K( S" X0 Z- h Plugins:
/ s% G2 @. f  B  u7 i; F3 T! S% a  Volume: local
0 N/ _0 m6 K/ j- P3 i  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
/ b5 R/ m* ^( }+ M$ l: @ Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
9 U# W: @0 A: s1 K1 t Default Runtime: runc
Init Binary: docker-init
9 k7 z! c, v( t$ a9 |- g' |% P containerd version: 10c12954828e7c7c9b6e0ea9b0c02b01407d3ae1
& y7 }3 [" G0 | runc version: v1.1.2-0-ga916309
init version: de40ad0
* {/ y  `9 j+ I: B Security Options:
- I7 j6 T2 a( @  seccomp
   Profile: default
Kernel Version: 3.10.0-1160.el7.x86_64
' b4 I' i0 M4 d" A3 e Operating System: CentOS Linux 7 (Core)
! a( j) x+ Q0 }! G( l OSType: linux
5 X2 @( f! C9 a9 i Architecture: x86_64
CPUs: 16
, _- l- z0 [# ?5 { Total Memory: 15.51GiB
Name: openstack.novalocal
. C0 A$ r8 q5 K5 E/ D; _ ID: IL2Z:QYIC:CVO4:DKSU:RAVA:ONC2:ZSBT:JLHA:FBWV:JY7W:E7SS:W7AA
* K9 M8 Z2 ^( S3 W3 V Docker Root Dir: /var/lib/docker
: R. ~# {1 K0 q, o* I# Z1 i9 D& _2 W( R Debug Mode: false
1 S0 r, [8 e! b: x' N" X" K4 ]! R Registry: https://index.docker.io/v1/
Labels:
5 i1 j" z0 r: |. `" Y$ A* F, G3 t Experimental: false
) X( Q/ M( Y5 Y/ @ Insecure Registries:
& ^0 Y2 _8 G: I0 E! s3 ~8 k  192.168.0.75:4000
  127.0.0.0/8
" {, Y$ l7 O; f7 X Live Restore Enabled: false

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