Docker在官网下载Tomcat镜像，执行ip addr报错

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​1、官网下载tomcat，并运行​

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-d -P --name tomcat01 tomcat      

``2、进入容器并查看当前ip`在这里插入代码片```

[root@Agustletmen ~]# docker exec -it tomcat01 ip addr
OCI runtime exec failed: exec failed: container_linux.go:380: starting container process caused: exec: "ip": executable file not found in $PATH:      

原因：当前环境下载基础镜像只包含简单的操作系统，相当于裸机状态，要想用别的命令需要手动安装。

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​解决方案​

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​进入容器​

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[root@iZwz9geewjuo2sogidqn50Z /]# docker exec -it tomcat01 /bin/bash      

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​查看ip​

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root@bcd2df75c93b:/usr/local/tomcat# ip addr
bash: ip: command not      

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​手动安装ip相关的命令：​

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root@bcd2df75c93b:/usr/local/tomcat# apt update
root@bcd2df75c93b:/usr/local/tomcat# apt install -y iproute2      

22b2277cb4b4:/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
154: eth0@if155: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:ac:11:00:03 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 172.17.0.3/16 brd 172.17.255.255