A Simple and Stupid Network Utilities for Debugging Containers & Kubernetes.
curl \ iproute2 \ iputils-ping \ jq \ dnsutils \ netcat-openbsd \ net-tools \ nmap \ telnet \ tcpdump \ traceroute \ wget \
You can use the pre-built image on Docker Hub. For example:
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Kubernetes
$ kubectl create -n default deployment net-tools --image docker.io/qqbuby/net-tools -- tail -f /dev/null deployment.apps/net-tools created $ kubectget po -n default -l app=net-tools NAME READY STATUS RESTARTS AGE net-tools-6847549946-67hmf 1/1 Running 0 56s $ kubectl exec -n default net-tools-6847549946-67hmf -- ip a 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: eth0@if18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UP group default link/ether b6:3b:a5:74:3c:e5 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 10.244.1.48/24 brd 10.244.1.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::b43b:a5ff:fe74:3ce5/64 scope link valid_lft forever preferred_lft forever $ kubectl exec -n default net-tools-6847549946-67hmf -- dig +short +search kubernetes 10.96.0.1 $ kubectl get svc -n default NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 15d
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Docker
$ docker run --rm -it qqbuby/net-tools:2.0 ip a 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 33: eth0@if34: <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
Or build the image by yourself with the Dockerfile in this repository.