No internet connectivity inside docker container

Hello, I encountered a problem with internet connectivity. Tried many solutions but none seemed to work. OS is Ubuntu 18.04

ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default 
    inet scope host venet0
       valid_lft forever preferred_lft forever
    inet brd scope global venet0:0
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:f3:8b:0c:92 brd ff:ff:ff:ff:ff:ff
    inet brd scope global docker0
       valid_lft forever preferred_lft forever

docker version
Client: Docker Engine - Community
 Version:           20.10.4
 API version:       1.41
 Go version:        go1.13.15
 Git commit:        d3cb89e
 Built:             Thu Feb 25 07:05:21 2021
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
  Version:          20.10.4
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.13.15
  Git commit:       363e9a8
  Built:            Thu Feb 25 07:03:17 2021
  OS/Arch:          linux/amd64
  Experimental:     false
  Version:          1.4.3
  GitCommit:        269548fa27e0089a8b8278fc4fc781d7f65a939b
  Version:          1.0.0-rc92
  GitCommit:        ff819c7e9184c13b7c2607fe6c30ae19403a7aff
  Version:          0.19.0
  GitCommit:        de40ad0

uname -a
Linux mbot 4.15.0 #1 SMP Mon Dec 9 19:36:21 MSK 2019 x86_64 x86_64 x86_64 GNU/Linux

docker run --rm -it alpine ping -c4
ping: bad address ''

Does your host have internet access? Can you ping google from your host system?
Your ip addr command looks like no connection to the internet exists.