allowing CIDRs, wildcards and Plural in IP and DNS

[matthyx]

Same-repo mirror of #806 (which is from the k8sstormcenter fork) so the gated Node Agent Component Tests and build-and-push-image (pull_request) workflows run with repo secrets.

Single squashed commit, rebased on main, conflicts resolved.

Overview

network-wildcards: DNS leading/trailing/mid + CIDR + IPAddresses + * sentinel.

CEL networkneighborhood helpers now query projected fields with wildcard/CIDR/DNS-wildcard support and the v0.0.2 spec semantics (port/protocol checks degrade to address-only in v1 when only a CIDR is declared):

• DNS leading-* (RFC 4592 single-label wildcard)
• DNS trailing-* (subdomain-prefix wildcard)
• DNS mid-⋯ (interior dynamic segment)
• IPv4/IPv6 literals and CIDR ranges
• * any-IP sentinel
• IPAddresses list (deprecated single-IP field) preserved on the decode path

Enables the "Unexpected Egress Network Traffic" (R0011) rule by default.

Storage dependency

Backed by kubescape/storage #324. go.mod pins the official kubescape/storage v0.0.290 release (drops the temporary fork replace).

Tests

• 20 declarative fixture YAMLs under tests/resources/network-wildcards/
• wildcard + fixtures unit tests in pkg/rulemanager/cel/libraries/networkneighborhood/
• Test_28_UserDefinedNetworkNeighborhood component test
• Feature documented in docs/features/network-wildcards.md

Supersedes/mirrors #806.

🤖 Generated with Claude Code

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d0d2069e-62b9-4721-ae21-e3ef76f4039b

📥 Commits

Reviewing files that changed from the base of the PR and between 1e079ee and 7ca0541.

⛔ Files ignored due to path filters (1)

• go.sum is excluded by !**/*.sum

📒 Files selected for processing (33)

• docs/features/network-wildcards.md
• go.mod
• pkg/objectcache/containerprofilecache/projection.go
• pkg/objectcache/containerprofilecache/projection_apply.go
• pkg/objectcache/v1/mock.go
• pkg/rulemanager/cel/libraries/networkneighborhood/fixtures_test.go
• pkg/rulemanager/cel/libraries/networkneighborhood/network.go
• pkg/rulemanager/cel/libraries/networkneighborhood/wildcard_test.go
• tests/chart/templates/node-agent/default-rules.yaml
• tests/component_test.go
• tests/resources/known-network-neighborhood.yaml
• tests/resources/network-wildcards/01-literal-ipv4.yaml
• tests/resources/network-wildcards/02-literal-ipv6.yaml
• tests/resources/network-wildcards/03-cidr-ipv4.yaml
• tests/resources/network-wildcards/04-cidr-ipv6.yaml
• tests/resources/network-wildcards/05-any-ip-sentinel.yaml
• tests/resources/network-wildcards/06-any-as-cidr.yaml
• tests/resources/network-wildcards/07-mixed-ip-list.yaml
• tests/resources/network-wildcards/08-deprecated-ipaddress.yaml
• tests/resources/network-wildcards/09-dns-literal.yaml
• tests/resources/network-wildcards/10-dns-leading-wildcard.yaml
• tests/resources/network-wildcards/11-dns-mid-ellipsis.yaml
• tests/resources/network-wildcards/12-dns-trailing-star.yaml
• tests/resources/network-wildcards/13-dns-trailing-dot-normalisation.yaml
• tests/resources/network-wildcards/14-recursive-star-rejected.yaml
• tests/resources/network-wildcards/15-egress-and-ingress.yaml
• tests/resources/network-wildcards/16-egress-none.yaml
• tests/resources/network-wildcards/17-realistic-stripe-api.yaml
• tests/resources/network-wildcards/18-cluster-dns-via-mid-ellipsis.yaml
• tests/resources/network-wildcards/19-port-protocol-with-cidr.yaml
• tests/resources/network-wildcards/20-multi-container-mixed-wildcards.yaml
• tests/resources/network-wildcards/README.md
• tests/resources/nginx-user-defined-deployment.yaml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch network-wildcards-806

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[github-actions]

Performance Benchmark Results

Node-Agent Resource Usage

Metric	BEFORE	AFTER	Delta
Avg CPU (cores)	0.203	0.198	-2.7%
Peak CPU (cores)	0.214	0.210	-1.9%
Avg Memory (MiB)	327.649	272.736	-16.8%
Peak Memory (MiB)	330.297	277.816	-15.9%

Dedup Effectiveness

No data available.

[matthyx]

we merged #806