✨ adding mailserver stuff

[mfreeman451]

Summary by CodeRabbit

Release Notes

• New Features

  • Introduced a mail server with StatefulSet configuration, supporting multiple mail protocols.
  • Added a ConfigMap for environment variable management of the mail server.
  • Implemented a PersistentVolumeClaim for persistent storage of mail data.
  • Created a TLS certificate resource for secure mail server communication.
  • Configured a LoadBalancer service for the mail server with dual-stack IP support.

• Enhancements

  • Updated BGPConfiguration to include additional load balancer IPs for improved network configuration.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

The changes in this pull request introduce a new mail server configuration using Kubernetes resources. A new StatefulSet for the mail server is created, along with a ConfigMap for environment variables, a Service for external access, a PersistentVolumeClaim for storage, and a TLS certificate configuration. Additionally, an entry for an IPv4 CIDR block is added to the existing BGPConfiguration for load balancer IPs. This configuration enhances the mail server's deployment and accessibility.

Changes

File Path	Change Summary
k8s/calico/04-route-adv.yaml	Added entry to serviceLoadBalancerIPs: cidr: "10.43.0.0/16" in BGPConfiguration.
k8s/mailserver/base/deployment.yaml	Introduced a new StatefulSet named mailserver with a single replica and container settings.
k8s/mailserver/base/kustomization.yaml	Created new Kustomization file referencing multiple resources for mail server deployment.
k8s/mailserver/base/mailserver-configmap.yaml	Added new ConfigMap mailserver-config with environment variable configurations for the mail server.
k8s/mailserver/base/service.yaml	Introduced a new Service named mailserver, configured for load balancing and email handling.
k8s/mailserver/base/storage.yaml	Added new PersistentVolumeClaim named maildata with storage capacity of 10Gi.
k8s/mailserver/base/tls.yaml	Created new Certificate resource named mail-cert for TLS configuration with issuer reference.

Possibly related PRs

• 🔧 WIP ory crap still #43: Modifications to the oathkeeper-rules-data ConfigMap, which may relate to load balancer IP configurations affecting routing or service accessibility.
• sync #44: Updates to the oathkeeper-rules-data ConfigMap, adding a new rule that could impact service access and authentication, linking to load balancer IP changes.

🐰 In the meadow, hops a rabbit so spry,
With a mail server ready, oh my, oh my!
Configs and secrets, all set to play,
Load balancer IPs join in the fray.
A dance of the packets, a joyful delight,
In the world of Kubernetes, everything's right! 🌼

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