exec failed: exec failed... exec: "ip" (the Docker container does not have the ip addr command: exec ip addr reports an error)
1. Error message 1:
OCI runtime exec failed: exec failed: unable to start container process: exec: "ip": executable file not found in $PATH: unknown
2. The reason for the error:
A certain image we downloaded (such as the tomcat image) is a simplified version. When we use this image to open a container, we find that there is no ip addr command.
3. The solution to error 1: install the tool iproute2
Enter the container (such as tomcat01 container)
[root@liulihui /]# docker exec -it tomcat01 /bin/bash
root@3dc528540a4d:/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
1、apt update
root@3dc528540a4d:/usr/local/tomcat# apt update
Get:1 http://deb.debian.org/debian bullseye InRelease [116 kB]
Get:2 http://security.debian.org/debian-security bullseye-security InRelease [48.4 kB]
Get:3 http://deb.debian.org/debian bullseye-updates InRelease [44.1 kB]
Get:4 http://security.debian.org/debian-security bullseye-security/main amd64 Packages [210 kB]
Get:5 http://deb.debian.org/debian bullseye/main amd64 Packages [8183 kB]
Get:6 http://deb.debian.org/debian bullseye-updates/main amd64 Packages [14.6 kB]
Fetched 8616 kB in 6min 16s (22.9 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
55 packages can be upgraded. Run 'apt list --upgradable' to see them.
2、apt install -y iproute2
root@3dc528540a4d:/usr/local/tomcat# apt install -y iproute2
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
libatm1 libbpf0 libcap2 libcap2-bin libelf1 libmnl0 libpam-cap libxtables12
Suggested packages:
iproute2-doc
The following NEW packages will be installed:
iproute2 libatm1 libbpf0 libcap2 libcap2-bin libelf1 libmnl0 libpam-cap libxtables12
0 upgraded, 9 newly installed, 0 to remove and 55 not upgraded.
Need to get 1394 kB of archives.
After this operation, 4686 kB of additional disk space will be used.
Get:1 http://deb.debian.org/debian bullseye/main amd64 libelf1 amd64 0.183-1 [165 kB]
Get:2 http://deb.debian.org/debian bullseye/main amd64 libbpf0 amd64 1:0.3-2 [98.3 kB]
Get:3 http://deb.debian.org/debian bullseye/main amd64 libcap2 amd64 1:2.44-1 [23.6 kB]
Get:4 http://deb.debian.org/debian bullseye/main amd64 libmnl0 amd64 1.0.4-3 [12.5 kB]
Get:5 http://deb.debian.org/debian bullseye/main amd64 libxtables12 amd64 1.8.7-1 [45.1 kB]
Get:6 http://deb.debian.org/debian bullseye/main amd64 libcap2-bin amd64 1:2.44-1 [32.6 kB]
Get:7 http://deb.debian.org/debian bullseye/main amd64 iproute2 amd64 5.10.0-4 [930 kB]
Get:8 http://deb.debian.org/debian bullseye/main amd64 libatm1 amd64 1:2.5.1-4 [71.3 kB]
Get:9 http://deb.debian.org/debian bullseye/main amd64 libpam-cap amd64 1:2.44-1 [15.4 kB]
Fetched 1394 kB in 47s (29.5 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libelf1:amd64.
(Reading database ... 12672 files and directories currently installed.)
Preparing to unpack .../0-libelf1_0.183-1_amd64.deb ...
Unpacking libelf1:amd64 (0.183-1) ...
Selecting previously unselected package libbpf0:amd64.
Preparing to unpack .../1-libbpf0_1%3a0.3-2_amd64.deb ...
Unpacking libbpf0:amd64 (1:0.3-2) ...
Selecting previously unselected package libcap2:amd64.
Preparing to unpack .../2-libcap2_1%3a2.44-1_amd64.deb ...
Unpacking libcap2:amd64 (1:2.44-1) ...
Selecting previously unselected package libmnl0:amd64.
Preparing to unpack .../3-libmnl0_1.0.4-3_amd64.deb ...
Unpacking libmnl0:amd64 (1.0.4-3) ...
Selecting previously unselected package libxtables12:amd64.
Preparing to unpack .../4-libxtables12_1.8.7-1_amd64.deb ...
Unpacking libxtables12:amd64 (1.8.7-1) ...
Selecting previously unselected package libcap2-bin.
Preparing to unpack .../5-libcap2-bin_1%3a2.44-1_amd64.deb ...
Unpacking libcap2-bin (1:2.44-1) ...
Selecting previously unselected package iproute2.
Preparing to unpack .../6-iproute2_5.10.0-4_amd64.deb ...
Unpacking iproute2 (5.10.0-4) ...
Selecting previously unselected package libatm1:amd64.
Preparing to unpack .../7-libatm1_1%3a2.5.1-4_amd64.deb ...
Unpacking libatm1:amd64 (1:2.5.1-4) ...
Selecting previously unselected package libpam-cap:amd64.
Preparing to unpack .../8-libpam-cap_1%3a2.44-1_amd64.deb ...
Unpacking libpam-cap:amd64 (1:2.44-1) ...
Setting up libatm1:amd64 (1:2.5.1-4) ...
Setting up libcap2:amd64 (1:2.44-1) ...
Setting up libcap2-bin (1:2.44-1) ...
Setting up libmnl0:amd64 (1.0.4-3) ...
Setting up libxtables12:amd64 (1.8.7-1) ...
Setting up libelf1:amd64 (0.183-1) ...
Setting up libpam-cap:amd64 (1:2.44-1) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 78.)
debconf: falling back to frontend: Readline
Setting up libbpf0:amd64 (1:0.3-2) ...
Setting up iproute2 (5.10.0-4) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 78.)
debconf: falling back to frontend: Readline
Processing triggers for libc-bin (2.31-13+deb11u2) ...
3、docker exec -it tomcat01 ip addr
[root@liulihui ~]# docker exec -it tomcat01 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
18: eth0@if19: <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