kubepfm

README

Overview

kubepfm is a simple wrapper to kubectl port-forward command. It can start multiple kubectl port-forward processes based on the number of input target pods. At the moment, if you have multiple pods per deployment, it will choose the first one listed from the kubectl get pod command. Terminating the tool (Ctrl-C) will also terminate all running kubectl sub-processes.

Installation

Using Homebrew:

$ brew tap flowerinthenight/tap
$ brew install kubepfm

If you have a Go environment:

$ go get -u -v github.com/flowerinthenight/kubepfm

Usage

$ kubepfm --target [namespace:]pod-name-or-pattern:local-port:pod-port --target ...

If the [namespace:] part is not specified, the default namespace is used.

This tool uses regexp.FindAllString to resolve the input pattern. If your pattern includes : in it (i.e. [[:alpha:]]), then you need to include the namespace part, as this tool uses the : character as its input separator.

# Simple pattern, namespace not needed
$ kubepfm --target mypod:8080:1222

# Pattern with a `:` in it, namespace is required
$ kubepfm --target "default:mypo[[:alpha:]]:8080:1222"

Finally, the .* string is appended to the input pod-name-or-pattern before it is resolved.

Examples

# Example pods:
$ kubectl get pod
NAME                                 READY     STATUS      RESTARTS   AGE
mypod-7c497c9d94-8xls2               1/1       Running     0          7d
otherpod-5987f84db4-9mhxf            1/1       Running     0          4d
hispod-7d8c4cbd9-dqjc6               1/1       Running     0          21d
herpod-7d48964997-d6pgs              1/1       Running     0          3d

# Do a port-forward to two pods using port 1222 to our local 8080 and 8081 ports:
$ kubepfm --target mypod:8080:1222 --target otherpod:8081:1222
2019/02/19 18:40:05 [info] Your pods:
NAMESPACE     NAME                                 READY     STATUS      RESTARTS   AGE
default       mypod-7c497c9d94-8xls2               1/1       Running     0          7d
default       otherpod-5987f84db4-9mhxf            1/1       Running     0          4d
default       hispod-7d8c4cbd9-dqjc6               1/1       Running     0          21d
default       herpod-7d48964997-d6pgs              1/1       Running     0          3d
...
kube-system   heapster-v1.5.3-6b684ff798-98tn2     3/3       Running     0          27d
kube-system   kube-dns-788979dc8f-287w8            4/4       Running     0          45d
...

# Both pods are now accessible from localhost:
# localhost:8080 -> mypod, localhost:8081 -> otherpod