Docker 报错：OCI runtime exec failed: exec failed: unable to start container process: exec: “xxx“: exec-Toy模板网

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错误信息：

[root@localhost ~]# docker exec -it tomcat01 ip addr
OCI runtime exec failed: exec failed: unable to start container process: exec: "ip": executable file not found in $PATH: unknown

[root@localhost ~]# docker exec -it tomcat02 ping 172.17.0.2
OCI runtime exec failed: exec failed: unable to start container process: exec: "ping": executable file not found in $PATH: unknown

解决办法：

前言

最近在学狂神 Docker 网络时遇到的问题，查看容器内部网络地址报错信息如上。

报错原因：

我们下载的Tomcat镜像是精简版的，运行并进入 tomcat01 容器后发现没有ip addr 和 ping 命令。
解决方式：

安装 iproute2：apt install -y iproute2

安装 ping：apt-get install -y iputils-ping

解决过程如下

宿主机测试 ip addr 命令

# 主机没问题 那就是容器的问题
[root@localhost ~]# 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 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:8e:88:3a brd ff:ff:ff:ff:ff:ff
    inet 192.168.190.128/24 brd 192.168.190.255 scope global noprefixroute dynamic ens33
       valid_lft 1631sec preferred_lft 1631sec
    inet6 fe80::6ea2:3b88:e13b:3953/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:38:dd:4a brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:38:dd:4a brd ff:ff:ff:ff:ff:ff
5: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:4a:0a:13:58 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:4aff:fe0a:1358/64 scope link 
       valid_lft forever preferred_lft forever
15: veth9230795@if14: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether d6:fc:02:ee:0f:1b brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::d4fc:2ff:feee:f1b/64 scope link 
       valid_lft forever preferred_lft forever

查看运行容器系统版本

# 进入运行的容器，查看版本

root@2de81861a3cd:/usr/local/tomcat# cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.1 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.1 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

# 网上查阅资料得知，该系统内置 apt，并非 yum

安装 iproute2

# 系统内置 apt
root@2de81861a3cd:/usr/local/tomcat# yum -y install iproute2
bash: yum: command not found

# apt 安装失败，版本太低
root@2de81861a3cd:/usr/local/tomcat# apt install -y iproute2
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package iproute2

# apt 版本升级 
root@2de81861a3cd:/usr/local/tomcat#  apt update

# 再次安装
root@2de81861a3cd:/usr/local/tomcat# apt install -y iproute2

# 测试
root@2de81861a3cd:/usr/local/tomcat# 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 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
14: eth0@if15: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 172.17.0.2/16 brd 172.17.255.255 scope global eth0
       valid_lft forever preferred_lft forever
# 成功解决

安装 ping

# tomcat02 容器 安装 ping
root@e338c1a7ca22:/usr/local/tomcat# apt-get install -y iputils-ping

# 测试	tomcat02 ping tomcat01 的 ip
[root@localhost ~]# docker exec -it tomcat02 ping 172.17.0.2
OCI runtime exec failed: exec failed: unable to start container process: exec: "ping": executable file not found in $PATH: unknown
[root@localhost ~]# docker exec -it tomcat02 ping 172.17.0.2
PING 172.17.0.2 (172.17.0.2) 56(84) bytes of data.
64 bytes from 172.17.0.2: icmp_seq=1 ttl=64 time=0.995 ms
64 bytes from 172.17.0.2: icmp_seq=2 ttl=64 time=0.061 ms
64 bytes from 172.17.0.2: icmp_seq=3 ttl=64 time=0.068 ms
64 bytes from 172.17.0.2: icmp_seq=4 ttl=64 time=0.065 ms
64 bytes from 172.17.0.2: icmp_seq=5 ttl=64 time=0.101 ms
^C
--- 172.17.0.2 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4005ms
rtt min/avg/max/mdev = 0.061/0.258/0.995/0.368 ms

# 成功

结尾

由于只是在 tomcat01 容器里配置，当运行另一个容器 tomcat02 时，还是会有相同的问题，解决办法同上，麻烦！

离谱问题：

在学习狂神 Docker 自定义网络时遇到的问题：

# 自定义网络 mynet 
[root@localhost ~]# docker run -d -P --name tomcat-net-01 --net mynet tomcat
[root@localhost ~]# docker run -d -P --name tomcat-net-02 --net mynet tomcat

# tomcat-net-01 ping tomcat-net-02
[root@bogon ~]# docker exec -it tomcat-net-01 ping 192.168.0.3
OCI runtime exec failed: exec failed: unable to start container process: exec: "ping": executable file not found in $PATH: unknown

出现的问题和昨天的一样，我以为更新一下 apt，安装 ping 包就没事了，结果出乎意料！

具体问题如下：

交互模式进入 tomcat-net-01：

[root@localhost ~]# docker exec -it tomcat-net-01 /bin/bash

安装 ping：

root@f68749f62a90:/usr/local/tomcat# apt-get install -y iputils-ping
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package iputils-ping
# 安装失败，更新一下 apt

更新 apt：

# 问题来了
root@f68749f62a90:/usr/local/tomcat# apt update
Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease                   
Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease         
Ign:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease           
Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease         
Ign:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease         
Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease         
Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease                   
Err:2 http://security.ubuntu.com/ubuntu jammy-security InRelease         
  Temporary failure resolving 'security.ubuntu.com'
Ign:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease           
Ign:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease
0% [Connecting to archive.ubuntu.com]^C

# Err:2 http://security.ubuntu.com/ubuntu jammy-security InRelease         
#  Temporary failure resolving 'security.ubuntu.com'

昨天还没事今天就不行了？网上查找资料后发现要修改配置文件：/etc/resolv.conf

我们先看一下是否有这个文件：

root@f68749f62a90:/usr/local/tomcat# cat /etc/resolv.conf

search localdomain
nameserver 127.0.0.11
options ndots:0

tomcat 容器里确实存在，那我们 vim 修改即可！

修改 /etc/resolv.conf 配置文件

# tomcat 容器里并没有 vi/vim 
root@f68749f62a90:/usr/local/tomcat# vi /etc/resolv.conf
bash: vi: command not found
root@f68749f62a90:/usr/local/tomcat# vim /etc/resolv.conf
bash: vim: command not found

安装 vim

root@f68749f62a90:/usr/local/tomcat# apt-get install -y vim
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package vim
root@f68749f62a90:/usr/local/tomcat# sudo apt install vim
bash: sudo: command not found

# apt 安装 vim 失败，需要更新 apt 回到 步骤3

离谱问题来了：

apt update 失败需要修改 /etc/resolv.conf 文件，修改文件需要安装 vim
安装 vim 需要用 apt ，步骤5 安装 vim 失败需要更新 apt

死循环，目前暂未找到解决办法！文章来源地址https://www.toymoban.com/news/detail-783810.html

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