kubectl-who-can
Shows which subjects have RBAC permissions to VERB [TYPE, TYPE/NAME, NONRESOURCEURL] in Kubernetes.
Installation
There are several ways to install kubectl-who-can. The recommended installation is via the kubectl plugin manager
called krew.
krew
I assume that you've already installed krew. Then run the following command:
kubectl krew install who-can
The plugin will be available as kubectl who-can.
Manual
Download a release distribution archive for your operating system, extract it, and add the kubectl-who-can
executable to your $PATH. For example, to manually install kubectl-who-can on macOS run the following command:
VERSION=`git describe --abbrev=0`
mkdir -p /tmp/who-can/$VERSION && \
curl -L https://github.com/aquasecurity/kubectl-who-can/releases/download/$VERSION/kubectl-who-can_darwin_x86_64.tar.gz \, tar xz -C /tmp/who-can/$VERSION && \
sudo mv -i /tmp/who-can/$VERSION/kubectl-who-can /usr/local/bin
Build from Source
This is a standard Go program. If you already know how to build
and install Go code, you probably won't need these instructions.
Note that while the code is small, it has some rather big
dependencies, and fetching + building these dependencies can
take a few minutes.
Option 1 (if you have a Go compiler and want to tweak the code):
# Clone this repository (or your fork)
git clone https://github.com/aquasecurity/kubectl-who-can
cd kubectl-who-can
make
The kubectl-who-can binary will be in the current directory.
Option 2 (if you have a Go compiler and just want the binary):
go get -v github.com/aquasecurity/kubectl-who-can/cmd/kubectl-who-can
The kubectl-who-can binary will be in $GOPATH/bin.
Option 3 (if you don't have a Go compiler, but have Docker installed):
docker run --rm -v /usr/local/bin:/go/bin golang go get -v github.com/aquasecurity/kubectl-who-can/cmd/kubectl-who-can
The kubectl-who-can binary will be in /usr/local/bin.
Usage
$ kubectl who-can VERB (TYPE, TYPE/NAME, NONRESOURCEURL) [flags]
Flags
Name, Shorthand, Default, Usage
-----------------, -----------, ---------, ----------------------------
namespace, n, If present, the namespace scope for this CLI request
all-namespaces, A, false, If true, check for users that can do the specified action in any of the available namespaces
subresource, Specify a sub-resource such as pod/log or deployment/scale
For additional details on flags and usage, run kubectl who-can --help.
License
This repository is available under the Apache License 2.0.