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Enable ingress access from within cluster - #352

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Andrei Kvapil (kvaps) merged 1 commit into
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ingress-policy
Sep 23, 2024
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Enable ingress access from within cluster#352
Andrei Kvapil (kvaps) merged 1 commit into
mainfrom
ingress-policy

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@kvaps

@kvaps Andrei Kvapil (kvaps) commented Sep 23, 2024 •
edited by coderabbitai Bot
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Currently ingress have rule to allow access from outside cluster, but have no rule to access from within cluster.
This PR introduces fix for allow ingress access from any namespace by default.

Summary by CodeRabbit

  • New Features
    • Introduced a new network policy for managing ingress traffic, enhancing security and traffic management capabilities.
    • The policy is dynamically configured based on the tenant's settings, allowing for tailored network access.

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coderabbitai Bot commented Sep 23, 2024 •
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Walkthrough

The pull request introduces a new CiliumClusterwideNetworkPolicy resource in the networkpolicy.yaml file, which defines ingress rules for traffic management within a Kubernetes environment. This resource is conditionally created based on the .Values.ingress configuration and targets endpoints with specific labels, particularly for the ingress service in the designated namespace. The ingress rules permit traffic from all endpoints.

Changes

File Path Change Summary
packages/apps/tenant/templates/networkpolicy.yaml Added a new CiliumClusterwideNetworkPolicy resource named {{ include "tenant.name" . }}-ingress-ingress for ingress traffic management.

Possibly related PRs

  • [use bridge binding for Kubernetes VMs #315] The changes in this PR enhance networking capabilities in Kubernetes, which may relate to the new ingress rules defined in the main PR's network policy, although they focus on VMs rather than direct ingress traffic management.

🐰 In the meadow where the code does flow,
A new policy blooms, watch it grow!
Ingress rules now dance with delight,
Allowing traffic to take flight.
With labels to guide and endpoints to greet,
The network's a garden, oh so sweet! 🌼

Recent review details

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Commits

Files that changed from the base of the PR and between 0f312d5 and 9dc07c7.

Files selected for processing (1)
  • packages/apps/tenant/templates/networkpolicy.yaml (1 hunks)
Additional comments not posted (1)
packages/apps/tenant/templates/networkpolicy.yaml (1)

86-99: LGTM with suggestions for improvement

The new CiliumClusterwideNetworkPolicy for ingress traffic is well-structured and aligns with the PR objective of enabling ingress access from within the cluster. However, there are a couple of points to consider:

  1. The current ingress rule allows traffic from all endpoints, which might be too permissive. Consider restricting the ingress traffic to specific sources if possible.

  2. The policy name includes "ingress" twice ({{ include "tenant.name" . }}-ingress-ingress). This might be intentional, but it could also be a typo. Please verify if this is the intended naming convention.

Consider refining the ingress rules for better security. For example:

ingress:
- fromEndpoints:
  - matchLabels:
      "k8s:io.kubernetes.pod.namespace": "{{ include "tenant.name" . }}"

This would restrict ingress traffic to only pods within the same namespace.

To ensure this change aligns with the PR objectives, please confirm:

  1. Is allowing all ingress traffic intentional, or should it be more restricted?
  2. Are there any specific services or namespaces that should be allowed/denied access?

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@kvaps
Enable ingress access from within cluster
9dc07c7 
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
@kvaps Andrei Kvapil (kvaps) changed the title ingress policy Enable ingress access from within cluster Sep 23, 2024
@kvaps
Andrei Kvapil (kvaps) merged commit cd0be91 into main Sep 23, 2024
@kvaps
Andrei Kvapil (kvaps) deleted the ingress-policy branch September 23, 2024 10:07
@coderabbitai coderabbitai Bot mentioned this pull request Dec 4, 2024
Merged
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