From bd62af64cf7f673850b1d4d120614240d89eff5a Mon Sep 17 00:00:00 2001
From: Quirin Vetterl <140174674+qrnvttrl@users.noreply.github.com>
Date: Wed, 21 Aug 2024 15:09:41 +0200
Subject: [PATCH] increase ipam resilience (#98)

---
 charts/metal-control-plane/Chart.yaml         |  2 +-
 .../metal-control-plane/templates/ipam.yaml   | 23 +++++++++++++++++++
 charts/metal-control-plane/values.yaml        |  1 +
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/charts/metal-control-plane/Chart.yaml b/charts/metal-control-plane/Chart.yaml
index 871c2fd..8a133b7 100644
--- a/charts/metal-control-plane/Chart.yaml
+++ b/charts/metal-control-plane/Chart.yaml
@@ -3,4 +3,4 @@ apiVersion: v1
 appVersion: "1.0"
 description: A Helm chart for deploying the metal control plane in K8s
 name: metal-control-plane
-version: 0.4.3
+version: 0.4.4
diff --git a/charts/metal-control-plane/templates/ipam.yaml b/charts/metal-control-plane/templates/ipam.yaml
index 69a16d5..b79d427 100644
--- a/charts/metal-control-plane/templates/ipam.yaml
+++ b/charts/metal-control-plane/templates/ipam.yaml
@@ -4,6 +4,7 @@ kind: Deployment
 metadata:
   name: ipam
 spec:
+  replicas: {{ .Values.ipam.replicas }}
   selector:
     matchLabels:
       app: ipam
@@ -16,6 +17,18 @@ spec:
         prometheus.io/path: /metrics
         prometheus.io/port: '2112'
     spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 100
+            podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app
+                  operator: In
+                  values:
+                  - ipam
+              topologyKey: kubernetes.io/hostname
       containers:
       - name: ipam
         args:
@@ -71,3 +84,13 @@ spec:
     targetPort: 2112
   selector:
     app: ipam
+---
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: ipam-pdb
+spec:
+  minAvailable: 2
+  selector:
+    matchLabels:
+      app: ipam
\ No newline at end of file
diff --git a/charts/metal-control-plane/values.yaml b/charts/metal-control-plane/values.yaml
index 09d6682..2a138ed 100644
--- a/charts/metal-control-plane/values.yaml
+++ b/charts/metal-control-plane/values.yaml
@@ -126,6 +126,7 @@ metal_api:
   release_version: ""
 
 ipam:
+  replicas: 2
   grpc_server_endpoint: "0.0.0.0:9090"
   log_level: "info"
   db_host: ""