* common_test: Add a failing test to show the SISEGV
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common: Go green by fixing isMaster() to instantiate viper
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common: Inject a seam for getBinariesFunc to be patched-in.
Also adds additional tests to showcase unhappy behaviors.
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common_test: Rename TestIsMaster()
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common: init viper with master config
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common: Add a pre-check if valid yaml is passed but doesn't include master.
Also adds additional tests to showcase unhappy behaviors.
Signed-off-by: Simarpreet Singh <simar@linux.com>
* mod: Upgrade viper to v1.4.0
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common: Refactor node only yaml to a file
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common: Log when master components are not found
Signed-off-by: Simarpreet Singh <simar@linux.com>
* common_test: Refactor subtests into a table
Signed-off-by: Simarpreet Singh <simar@linux.com>
* Read kubernetes version from environment
Set kubernetes version to the value of the environment variable `KUBE_BENCH_VERSION` if it is defined and the flag `--version` is not specified on the kube-bench command line.
The command line flag `--version` takes precedence of the environment variable `KUBE_BENCH_VERSION` if both are defined.
* Add info about KUBE_BENCH_VERSION to README
The root command will run node checks and if possible master checks.
I've also added some Makefile targets to improve local testing and improve the documentation.
There are checks for the kubeconfig for both kubelet and proxy which
the current kube-bench implementation does not check for properly.
kube-bench checks the wrong files.
This PR adds support for variable substitution for all the config file
types are that should be checked in the CIS benchmarks.
This PR also fixes a buggy in CIS 1.3.0 check 2.2.9, which checks for
ownership of the kubelet config file /var/lib/kubelet/config.yaml but
recommends changing ownership of kubelet kubeconfig file
/etc/kubernetes/kubelet.conf as remediation.
If a check is marked with type "skip", it will be marked as Info.
Support scored property:
If a check is not scored and is not marked with type skip, it will be marked as Warn.
The CIS benchmark check for node checks 2 config files for kubelet:
- kubelet config file (kubelet.conf)
- kubelet systemd unitfile (10-kubeadm.conf)
The getServiceFiles function gets candidates for kubelet systemd
unitfile and returns valid untifiles.
If people are trying to use the Docker image to check their cluster, there's a
big likelyhood of them hitting the error message saying that either `kubectl`
or `kubelet` need to be found in order for `kube-bench` to be able to determine
the Kubernetes version in use.
This adds a tip that the version can be specified manually with the `--version`
flag which is a lot easier than having to make a new Docker image with the
right version of `kubelet`/`kubectl` in order for `kube-bench` to work.
