Mailgun Kubernetes operator

The Mailgun Kubernetes Custom Resources Operator allows users to manage Mailgun domains, webhooks, and routes directly within a Kubernetes cluster. If the external-dns operator is also installed, it automatically verifies domain DNS records, ensuring seamless domain management and integration.

Description

The Mailgun Kubernetes Custom Resources Operator seamlessly integrates Mailgun's email services into Kubernetes, enabling users to manage domains, webhooks, and routes directly within the cluster. By defining custom resources, the operator automates the creation and configuration of Mailgun-related settings, streamlining the management of email functionalities for applications deployed on Kubernetes.

Furthermore, when used alongside the external-dns operator, this Mailgun operator enhances functionality by automatically verifying DNS records for domains, ensuring that domain configurations are accurate and reducing manual interventions. This integration provides a robust solution for developers and DevOps teams, allowing them to automate and manage email-related tasks efficiently within their Kubernetes environments.

Getting Started

Prerequisites

• go version v1.22.0+
• docker version 17.03+.
• kubectl version v1.11.3+.
• Access to a Kubernetes v1.11.3+ cluster.

To Deploy on the cluster

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

make docker-build docker-push IMG=<some-registry>/mailgun-operator: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>/mailgun-operator: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>/mailgun-operator: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.

2. Using the installer

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

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

Contributing

Send PR if you want to help us.

NOTE: Run make help for more information on all potential make targets

More information can be found via the Kubebuilder Documentation