docs: memory limits on the roadmap

chore(deps): update helm chart mariadb-operator to v26

.github/workflows/validate.yaml

@@ -18,7 +18,7 @@ concurrency:
 
 jobs:
   validate:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

actual-budget/helm-actual-budget.yaml

@@ -12,7 +12,7 @@ spec:
   project: default
   source:
     repoURL: https://community-charts.github.io/helm-charts
-    targetRevision: 1.8.9
+    targetRevision: 1.9.5
     chart: actualbudget
     helm:
       values: |

apps/templates/authentik-helm.yaml

@@ -103,6 +103,8 @@ spec:
               requests:
                 cpu: 70m
                 memory: 560Mi
+              limits:
+                memory: 1536Mi
             volumes:
               - name: patched-ca-bundle
                 configMap:
@@ -192,6 +194,8 @@ spec:
               requests:
                 cpu: 100m
                 memory: 336Mi
+              limits:
+                memory: 1Gi
             volumes:
               - name: patched-ca-bundle
                 configMap:

apps/templates/cert-manager-helm.yaml

@@ -38,16 +38,22 @@ spec:
           requests:
             cpu: 10m
             memory: 48Mi
+          limits:
+            memory: 128Mi
         cainjector:
           resources:
             requests:
               cpu: 10m
               memory: 80Mi
+            limits:
+              memory: 256Mi
         webhook:
           resources:
             requests:
               cpu: 10m
               memory: 32Mi
+            limits:
+              memory: 128Mi
   syncPolicy:
     syncOptions:
     - CreateNamespace=true

apps/templates/cloudnativepg-helm.yaml

@@ -28,6 +28,8 @@ spec:
           requests:
             cpu: 10m
             memory: 48Mi
+          limits:
+            memory: 128Mi
   destination:
     server: https://kubernetes.default.svc
     namespace: cnpg-system

apps/templates/envoy-gateway-helm.yaml

@@ -12,7 +12,7 @@ spec:
     repoURL: docker.io/envoyproxy
     chart: gateway-helm
     # v1.9 supports Kubernetes 1.33 to 1.36
-    targetRevision: v1.9.2
+    targetRevision: 1.9.3
     helm:
       values: |
         config:

apps/templates/external-secrets-helm.yaml

@@ -24,16 +24,22 @@ spec:
             requests:
               cpu: 20m
               memory: 64Mi
+            limits:
+              memory: 128Mi
           certController:
             resources:
               requests:
                 cpu: 10m
                 memory: 64Mi
+              limits:
+                memory: 128Mi
           webhook:
             resources:
               requests:
                 cpu: 10m
                 memory: 32Mi
+              limits:
+                memory: 128Mi
   destination:
     server: https://kubernetes.default.svc
     namespace: external-secrets

apps/templates/plugin-barman-cloud-helm.yaml

@@ -21,6 +21,8 @@ spec:
           requests:
             cpu: 10m
             memory: 64Mi
+          limits:
+            memory: 128Mi
   destination:
     server: https://kubernetes.default.svc
     namespace: cnpg-system

argocd/overlays/resources.patch.yaml

@@ -1,6 +1,6 @@
 # Requests from what the components used on 2026-10-25 (kubectl top every
-# 5 minutes; highest value plus 10%). No limits until there are daytime
+# 5 minutes; highest value plus 10%). Memory limits at about twice the
-# numbers, see docs/roadmap.md.
+# highest value seen then or on 2026-10-27, rounded up; no CPU limits.
 apiVersion: apps/v1
 kind: StatefulSet
 metadata:
@@ -14,6 +14,8 @@ spec:
             requests:
               cpu: 150m
               memory: 704Mi
+            limits:
+              memory: 2560Mi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -28,6 +30,8 @@ spec:
             requests:
               cpu: 100m
               memory: 128Mi
+            limits:
+              memory: 512Mi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -42,6 +46,8 @@ spec:
             requests:
               cpu: 10m
               memory: 64Mi
+            limits:
+              memory: 256Mi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -56,6 +62,8 @@ spec:
             requests:
               cpu: 20m
               memory: 96Mi
+            limits:
+              memory: 256Mi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -70,6 +78,8 @@ spec:
             requests:
               cpu: 10m
               memory: 48Mi
+            limits:
+              memory: 128Mi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -84,6 +94,8 @@ spec:
             requests:
               cpu: 10m
               memory: 48Mi
+            limits:
+              memory: 128Mi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -98,3 +110,5 @@ spec:
             requests:
               cpu: 10m
               memory: 32Mi
+            limits:
+              memory: 128Mi

authentik/postgresql-backup.yaml

@@ -67,6 +67,8 @@ spec:
       requests:
         cpu: 10m
         memory: 64Mi
+      limits:
+        memory: 512Mi
     env:
       # Newer boto3 adds checksums that S3-compatible stores can reject;
       # the plugin's docs suggest sending them only when required.

authentik/postgresql-cluster.yaml

@@ -6,7 +6,7 @@ spec:
   instances: 1
   # Pinned so a new operator default (PostgreSQL 18 since CNPG 1.26.3) can't
   # start an in-place major upgrade. CNPG filled this in at creation.
-  imageName: ghcr.io/cloudnative-pg/postgresql:17.4
+  imageName: ghcr.io/cloudnative-pg/postgresql:17.11
   primaryUpdateStrategy: unsupervised
   # WAL archiving and base backups to Garage, see postgresql-backup.yaml
   plugins:
@@ -18,6 +18,8 @@ spec:
     requests:
       cpu: 50m
       memory: 256Mi
+    limits:
+      memory: 1Gi
   bootstrap:
     initdb:
       database: authentik

dns/cronjob.yaml

@@ -13,7 +13,7 @@ spec:
       restartPolicy: Never
       containers:
         - name: sync
-          image: python:3.12-alpine
+          image: python:3.15-alpine
           command:
             - sh
             - -c

docs/roadmap.md

@@ -341,8 +341,13 @@ Counted 2026-10-25 over the 73 running containers:
   requested. Still without requests: Longhorn (22 containers, its chart),
   the Vault servers, the LDAP outpost, immich's PG14 cluster and three in
   kube-system
-- [ ] Memory limits, once there are daytime numbers: the night ones miss
+- [x] Memory limits: PR #58, for everything that got requests in #33.
-  immich's machine learning at work (it idles at 234Mi)
+  About twice the highest memory from `kubectl top` every 5 minutes from
+  2026-10-26 22:29 to 2026-10-27 21:55 UTC or the night of #33, rounded
+  up; no CPU limits. No OOM kills that day. immich's machine learning
+  sat idle all day (240Mi), so on 2026-10-28 a test image went through
+  CLIP, face recognition and OCR inside the container: 884Mi with all
+  three loaded, limit 2Gi
 - [x] WordPress (scoutingmbg.nl) was OOMKilled at 08:27:59 UTC on
   2026-10-25, its third restart: a crawler asked for 88 pages and assets
   within a few seconds (normally ~6 a minute), Apache started a PHP worker

freshrss/freshrss-deployment.yaml

@@ -23,7 +23,7 @@ spec:
         io.kompose.service: freshrss
     spec:
       initContainers:
-        - image: alpine/git:v2.52.0
+        - image: alpine/git:v2.54.0
           name: git
           command:
           - git
@@ -74,7 +74,7 @@ spec:
               value: Europe/Amsterdam
           # 1.30.3 ships PHP 8.4.27, which fixes CVE-2026-109618 and
           # CVE-2026-109619.
-          image: freshrss/freshrss:1.30.3
+          image: freshrss/freshrss:1.30.4
           name: freshrss
           ports:
             - containerPort: 80
@@ -83,6 +83,8 @@ spec:
             requests:
               cpu: 50m
               memory: 176Mi
+            limits:
+              memory: 512Mi
           # TCP, because mod_auth_openidc answers 401 to anything that isn't a
           # browser.
           readinessProbe:

gitea/gitea-deployment.yaml

@@ -54,6 +54,8 @@ spec:
             requests:
               cpu: 20m
               memory: 336Mi
+            limits:
+              memory: 1Gi
           # /api/healthz checks the database and the cache.
           readinessProbe:
             httpGet:

immich/helm-immich.yaml

@@ -67,6 +67,8 @@ spec:
                       requests:
                         cpu: 10m
                         memory: 64Mi
+                      limits:
+                        memory: 256Mi
                     image:
                       repository: docker.io/valkey/valkey
                       tag: 9.1.2-alpine@sha256:48332870af354a799964c0012ae1194a0bf2bf894eb508f945810596dc2d8d11
@@ -93,6 +95,8 @@ spec:
                       requests:
                         cpu: 100m
                         memory: 1280Mi
+                      limits:
+                        memory: 3Gi
                     # Node trusts its built-in roots, which still include the
                     # ones above the compromised eMudhra intermediates. Use
                     # patched-ca-bundle through OpenSSL until Node ships a fix.
@@ -117,12 +121,14 @@ spec:
                     image:
                       repository: ghcr.io/immich-app/immich-machine-learning
                       pullPolicy: IfNotPresent
-                    # Idle at night (234Mi); the models take over a GiB when
+                    # Idle at 240Mi; 884Mi with CLIP, face recognition and
-                    # it works.
+                    # OCR loaded (2026-10-28, a test image through each).
                     resources:
                       requests:
                         cpu: 50m
                         memory: 1Gi
+                      limits:
+                        memory: 2Gi
                     env:
                       TRANSFORMERS_CACHE: /cache
                       HF_XET_CACHE: /cache/huggingface-xet

immich/postgresql-backup.yaml

@@ -71,6 +71,8 @@ spec:
       requests:
         cpu: 10m
         memory: 64Mi
+      limits:
+        memory: 512Mi
     env:
       # Newer boto3 adds checksums that S3-compatible stores can reject;
       # the plugin's docs suggest sending them only when required.

immich/postgresql-cluster-17.yaml

@@ -13,6 +13,8 @@ spec:
     requests:
       cpu: 20m
       memory: 320Mi
+    limits:
+      memory: 1Gi
 
   postgresql:
     shared_preload_libraries:

mariadb-operator/operator-crds-helm.yaml

@@ -13,7 +13,7 @@ spec:
   source:
     chart: mariadb-operator-crds
     repoURL: https://mariadb-operator.github.io/mariadb-operator
-    targetRevision: 25.10.4
+    targetRevision: 26.10.2
   syncPolicy:
     automated:
       prune: true

mariadb-operator/operator-helm.yaml

@@ -13,13 +13,15 @@ spec:
   source:
     chart: mariadb-operator
     repoURL: https://mariadb-operator.github.io/mariadb-operator
-    targetRevision: 25.10.4
+    targetRevision: 26.10.2
     helm:
       values: |
         resources:
           requests:
             cpu: 10m
             memory: 48Mi
+          limits:
+            memory: 128Mi
         metrics:
           enabled: true
           serviceMonitor:
@@ -29,6 +31,8 @@ spec:
             requests:
               cpu: 10m
               memory: 32Mi
+            limits:
+              memory: 128Mi
           serviceMonitor:
             enabled: false
         certController:
@@ -36,6 +40,8 @@ spec:
             requests:
               cpu: 10m
               memory: 32Mi
+            limits:
+              memory: 128Mi
           serviceMonitor:
             enabled: false
   syncPolicy:

serpbear/serpbear-deployment.yaml

@@ -60,6 +60,8 @@ spec:
             requests:
               cpu: 10m
               memory: 160Mi
+            limits:
+              memory: 512Mi
           readinessProbe:
             httpGet:
               path: /login

vault/overrides.yaml

@@ -7,6 +7,8 @@ injector:
       requests:
          cpu: 10m
          memory: 32Mi
+      limits:
+         memory: 128Mi
    # The chart's default anti-affinity forbids two injector pods on one
    # node, so on this single node a rolling update can never start the new
    # pod while the old one runs. Recreate removes the old pod first, which

velero/velero-helm.yaml

@@ -71,6 +71,8 @@ spec:
             requests:
               cpu: 10m
               memory: 64Mi
+            limits:
+              memory: 128Mi
         # 512Mi got the server OOMKilled 314 times, including halfway
         # through a backup of ~14.7k items.
         resources: