monitoring-wo-webhooks

README

monitoring

Collection of different CRDs to perform the intended actions

containerscans: Monitors containers running status in the mentioned namespace
portscans: Monitor remote FQDN on the given port
vmscans: Monitor the status of openstack control plane VMs
metallbscans: Monitor load balancer type services status and its endpoints status and check service's external IP advertisement. Additionally checks remote BGP hops and its status from the kubernetes workers nodes

Description

Collection of different CRDs to perform the intended actions.

It is possible to only install the required CRDs, but controller pod will throw errors. If necessary, clone the repo and remove the not required CRD registration from cmd/main.go

After the CRD installation, please execute the following command to under each field in the spec.

kubectl/oc explain containerscans.monitoring.spark.co.nz
kubectl/oc explain portscans.monitoring.spark.co.nz
kubectl/oc explain vmscans.monitoring.spark.co.nz
kubectl/oc explain metallbscanis.monitoring.spark.co.nz

Deployment

Sample deployment

1. Create the CRDs

oc create -f monitoring-wo-webhooks/config/crd/bases/monitoring.spark.co.nz_containerscans.yaml
oc create -f monitoring-wo-webhooks/config/crd/bases/monitoring.spark.co.nz_portscans.yaml
oc create -f monitoring-wo-webhooks/config/crd/bases/monitoring.spark.co.nz_vmscans.yaml
oc create -f monitoring-wo-webhooks/config/crd/bases/monitoring.spark.co.nz_metallbscans.yaml

1. Create the service account

oc project <yourproject>
oc create sa <sa>

1. Create roles/rolebindings for service account Modify service account name in role_binding.yaml

oc create -f monitoring-wo-webhooks/config/rbac/role.yaml
oc create -f monitoring-wo-webhooks/config/rbac/role_binding.yaml

1. Create the deployment of the controller update the created service account and image name in the deployment file

oc create deployment -f <deployment.yaml>

1. To run as non-root user update security context, runAsUser and runAsGroup if required.

Getting Started

Prerequisites

• go version v1.21.0+
• docker version 17.03+.
• kubectl version v1.11.3+.
• Access to a Kubernetes v1.11.3+ cluster.
• metallb CRDs is a prerequisite for metallbscans

To Deploy on the cluster

Build and push your image to the location specified by IMG:

make docker-build docker-push IMG=<some-registry>/monitoring-wo-webhooks:tag

NOTE: This image ought to be published in the personal registry you specified. And it is required to have access to pull the image from the working environment. Make sure you have the proper permission to the registry if the above commands don’t work.

Install the CRDs into the cluster:

make install

Deploy the Manager to the cluster with the image specified by IMG:

make deploy IMG=<some-registry>/monitoring-wo-webhooks:tag

NOTE: If you encounter RBAC errors, you may need to grant yourself cluster-admin privileges or be logged in as admin.

Create instances of your solution You can apply the samples (examples) from the config/sample:

kubectl apply -k config/samples/

NOTE: Ensure that the samples has default values to test it out.

To Uninstall

Delete the instances (CRs) from the cluster:

kubectl delete -k config/samples/

Delete the APIs(CRDs) from the cluster:

make uninstall

UnDeploy the controller from the cluster:

make undeploy

Project Distribution

Following are the steps to build the installer and distribute this project to users.

1. Build the installer for the image built and published in the registry:

make build-installer IMG=<some-registry>/monitoring-wo-webhooks:tag

NOTE: The makefile target mentioned above generates an 'install.yaml' file in the dist directory. This file contains all the resources built with Kustomize, which are necessary to install this project without its dependencies.

1. Using the installer

Users can just run kubectl apply -f to install the project, i.e.:

kubectl apply -f https://raw.githubusercontent.com/<org>/monitoring-wo-webhooks/<tag or branch>/dist/install.yaml

License

Copyright 2024 baranitharan.chittharanjan@spark.co.nz.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.