解决容器启动，内部无法使用`ip addr`和`ping`命令

igxiaoshan Lv5
  2023-10-30 09:10:29 2023-10-30 09:10:29 创建   2023-10-30 09:10:29 2023-10-30 09:10:29 更新      322 字  1 分钟   
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[root@CentOS7_001 ~]# 
[root@CentOS7_001 ~]# docker ps
CONTAINER ID   IMAGE          COMMAND                   CREATED          STATUS          PORTS                                       NAMES
c48b8c6bc4d2   wordpress      "docker-entrypoint.s…"   12 minutes ago   Up 12 minutes   0.0.0.0:8089->80/tcp, :::8089->80/tcp       blog
580cf83c51ab   mysql:5.7      "docker-entrypoint.s…"   36 minutes ago   Up 36 minutes   3306/tcp, 33060/tcp                         db
6d7685e0c6bc   zydtag:0.0.1   "/bin/sh -c 'java ${…"   2 weeks ago      Up 10 seconds   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   zydtag
[root@CentOS7_001 ~]# 
[root@CentOS7_001 ~]# 
[root@CentOS7_001 ~]# docker exec -it db ping blog
OCI runtime exec failed: exec failed: unable to start container process: exec: "ping": executable file not found in $PATH: unknown
[root@CentOS7_001 ~]#

报错原因

容器简易版,没有相应的命令

解决方案

安装相应的命令

  • 进入容器中

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    [root@CentOS7_001 ~]# docker exec -it db /bin/bash

  • 安装/更新配置

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    ### 更新 apt-get: apt-get update
    ### 安装 iproute2：apt install -y iproute2
    ### 安装 ping：apt-get install -y iputils-ping
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###  详细指令自己实操....
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### 安装后解决
[root@CentOS7_001 zyd-tag]# docker exec -it blog ping db
PING mysql (172.17.0.2) 56(84) bytes of data.
64 bytes from mysql (172.17.0.2): icmp_seq=1 ttl=64 time=0.064 ms
64 bytes from mysql (172.17.0.2): icmp_seq=2 ttl=64 time=0.052 ms
64 bytes from mysql (172.17.0.2): icmp_seq=3 ttl=64 time=0.052 ms
64 bytes from mysql (172.17.0.2): icmp_seq=4 ttl=64 time=0.065 ms
--- mysql ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.052/0.058/0.065/0.006 ms
[root@CentOS7_001 zyd-tag]#

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解决容器启动，内部无法使用`ip addr`和`ping`命令