6d71a91fad
Keel kept rewriting calico-node + calico-kube-controllers images to v3.26.5 (proper patch update); tigera-operator immediately reverted to v3.26.1 because the Installation CR is the source of truth. Endless churn but no data loss — Calico stayed healthy throughout. Removing keel.sh/enrolled label and live label from calico-system ns. Calico upgrades go through the tigera-operator's Installation CR manually, not Keel. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
70 lines
2.6 KiB
HCL
70 lines
2.6 KiB
HCL
# Calico CNI
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#
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# Calico has underpinned this cluster's pod networking since 2024-07-30, installed
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# as raw kubectl manifests (tigera-operator Deployment + CRDs + Installation CR).
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# Bringing the full stack under Terraform is high-blast — the operator and its
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# Deployment must never flap during node pressure or during any apply, because
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# new pod scheduling breaks within ~seconds of a CNI outage.
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#
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# This stack (created 2026-04-18 Wave 5b) adopts the three namespaces only:
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# calico-system, calico-apiserver, tigera-operator. The `tigera-operator`
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# Deployment, the 20+ CRDs it manages, and the `Installation` CR itself are
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# intentionally *not* adopted yet — they require a low-traffic window and a
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# careful ignore_changes set to cover operator-generated defaults on the
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# Installation CR. Follow-up tracked in beads code-3ad.
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#
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# The namespaces are safe to adopt (no networking impact — they're just label
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# containers) and give TF an audit trail entry for the labels/tier Kyverno
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# cares about.
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resource "kubernetes_namespace" "calico_system" {
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metadata {
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name = "calico-system"
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labels = {
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name = "calico-system"
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# calico-system namespace is managed by tigera-operator — auto-update is
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# incompatible (operator reverts DaemonSet image from its Installation CR).
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# "keel.sh/enrolled" = "true"
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}
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}
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lifecycle {
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# KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode label on every namespace.
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# pod-security.kubernetes.io/* labels are applied by the tigera-operator
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# reconciler on calico-system + calico-apiserver for PSA 'privileged'.
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ignore_changes = [
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metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"],
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metadata[0].labels["pod-security.kubernetes.io/enforce"],
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metadata[0].labels["pod-security.kubernetes.io/enforce-version"],
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]
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}
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}
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resource "kubernetes_namespace" "calico_apiserver" {
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metadata {
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name = "calico-apiserver"
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labels = {
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name = "calico-apiserver"
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}
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}
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lifecycle {
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# KYVERNO_LIFECYCLE_V1 + PSA labels applied by tigera-operator (see calico_system).
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ignore_changes = [
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metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"],
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metadata[0].labels["pod-security.kubernetes.io/enforce"],
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metadata[0].labels["pod-security.kubernetes.io/enforce-version"],
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]
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}
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}
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resource "kubernetes_namespace" "tigera_operator" {
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metadata {
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name = "tigera-operator"
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labels = {
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name = "tigera-operator"
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}
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}
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lifecycle {
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# KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode ClusterPolicy stamps this label on every namespace
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ignore_changes = [metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"]]
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}
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}
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