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calico: bring tigera-operator under Terraform via Helm (adopt at 3.26.1)
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Base for the stepped 3.26->3.28->3.30->3.32 upgrade (k8s 1.36 prereq; 3.26 is
already unsupported on k8s 1.34). Manage ONLY the operator via the official
tigera-operator Helm chart (chart ver == Calico ver); installation.enabled=false
keeps the live Installation CR operator-managed so Helm never touches calico-node.
Adopted in place: existing operator Deployment/SA/ClusterRole/ClusterRoleBinding
pre-stamped with Helm ownership metadata (transient migration step), then the
release imported via a plan-verified create (1 to add, 0 destroy). Verified clean:
calico-node 7/7 unchanged, tigerastatus green. Closes the year-deferred adoption
(code-3ad) for the operator without adopting the Installation CR.
This commit is contained in:
Viktor Barzin 2026-06-19 21:50:34 +00:00
parent dd029ca7fb
commit 8ed5368be9
1 changed files with 28 additions and 0 deletions
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stacks/calico/main.tf
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@ -131,3 +131,31 @@ resource "kubectl_manifest" "wave1_egress_observe_tier34" {
# CI retrigger v5 2026-05-16T23:10:38Z
# CI retrigger v6 2026-05-16T23:18:58Z
# ---------------------------------------------------------------------------
# tigera-operator under Terraform via the official Helm chart (chart vX.Y.Z ==
# Calico vX.Y.Z). Manages ONLY the operator: installation.enabled=false keeps
# the live Installation CR operator-managed, so Helm NEVER touches the data
# plane (calico-node). Adopted in place at the running 3.26.1 (existing operator
# Deployment/SA/ClusterRole/ClusterRoleBinding pre-stamped with Helm ownership
# metadata 2026-06-19 — a transient migration step), then upgraded by bumping
# `version` one step at a time: 3.26 -> 3.28 -> 3.30 (restores a SUPPORTED k8s
# 1.34 pairing) -> 3.32 (supports k8s 1.36). The ~22 Calico CRDs live in the
# chart's crds/ dir, which `helm upgrade` never modifies (pre-3.32). resources
# preserves the operator's existing 256Mi limit. Apply MANUALLY + supervised
# (watch calico-node roll, maxUnavailable:1); gate each hop on tigerastatus +
# calico-node 7/7 + cross-pod connectivity. See docs/runbooks/k8s-version-upgrade.md.
resource "helm_release" "tigera_operator" {
name = "calico"
namespace = kubernetes_namespace.tigera_operator.metadata[0].name
create_namespace = false
repository = "https://docs.tigera.io/calico/charts"
chart = "tigera-operator"
version = "v3.26.1"
values = [yamlencode({
installation = { enabled = false }
apiServer = { enabled = false }
resources = { limits = { memory = "256Mi" } }
})]
}