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Feat: Add PgPool Support on Postgres #1261

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583a33c
added pgpool on postgres
NotTabassum Jul 17, 2026
d3cc56c
added global with featureGates
NotTabassum Jul 20, 2026
3acd914
Use helm hook to get kubedb ready
NotTabassum Jul 21, 2026
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10 changes: 10 additions & 0 deletions apis/installer/v1alpha1/ace_ace_types.go
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Expand Up @@ -396,6 +396,16 @@ type Settings struct {
Firebase FirebaseSettings `json:"firebase"`
// +optional
Marketplace *MarketplaceSettings `json:"marketplace,omitempty"`
// +optional
PgPool *PgPoolSettings `json:"pgpool,omitempty"`
}

type PgPoolSettings struct {
Enabled bool `json:"enabled"`
Replicas int `json:"replicas"`
Resources core.ResourceRequirements `json:"resources"`
// +optional
Config map[string]string `json:"config,omitempty"`
}

type DBSettings struct {
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28 changes: 28 additions & 0 deletions apis/installer/v1alpha1/zz_generated.deepcopy.go
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39 changes: 39 additions & 0 deletions catalog/scripts/operator/imagelist.yaml
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- alpine:3.20
- bats/bats:1.11.0
- ghcr.io/appscode-images/registry:3.1.1
- ghcr.io/appscode/ace:v0.2.0
- ghcr.io/appscode/acerproxy:v0.2.0
- ghcr.io/appscode/aceshifter:v0.0.3
- ghcr.io/appscode/b3:v2026.7.10
- ghcr.io/appscode/billing-ui:2.4.0
- ghcr.io/appscode/catalog-manager:v0.13.0
- ghcr.io/appscode/cert-manager-webhook-ace:v0.0.2
- ghcr.io/appscode/cloudflare-dns-proxy:v0.0.5
- ghcr.io/appscode/cluster-presets:v0.0.12
- ghcr.io/appscode/cluster-ui:2.4.0
- ghcr.io/appscode/curl:alpine
- ghcr.io/appscode/deploy-ui:0.3.6
- ghcr.io/appscode/fileserver:v0.0.1
- ghcr.io/appscode/gh-ci-webhook:v0.0.20
- ghcr.io/appscode/gotenberg:8.25
- ghcr.io/appscode/grafana:v2025.2.3
- ghcr.io/appscode/inbox-server:postgres-latest
- ghcr.io/appscode/inbox-ui:0.0.5
- ghcr.io/appscode/kube-rbac-proxy:v0.18.2
- ghcr.io/appscode/kubectl-nonroot:1.34
- ghcr.io/appscode/kubedb-ui:2.4.0
- ghcr.io/appscode/license-proxyserver:v0.1.1
- ghcr.io/appscode/marketplace-ui:0.3.1
- ghcr.io/appscode/maxmind-geoip:city-mmdb-latest
- ghcr.io/appscode/offline-license-server:v0.0.76
- ghcr.io/appscode/outboxsyncer:v0.5.0
- ghcr.io/appscode/platform-ui:2.4.0
- ghcr.io/appscode/s3proxy:sha-a82ca68
- ghcr.io/appscode/service-provider:v0.0.2
- ghcr.io/appscode/smtprelay:v0.0.4
- ghcr.io/appscode/website:v2026.7.10
- ghcr.io/voyagermesh/crd-manager:v0.2.0
- ghcr.io/voyagermesh/echoserver:v20221109
- ghcr.io/voyagermesh/envoy:v1.37.2-ac
- ghcr.io/voyagermesh/gateway:v1.7.1
- minio/minio:RELEASE.2023-01-12T02-06-16Z
3 changes: 3 additions & 0 deletions catalog/scripts/pgpool/imagelist.yaml
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- ghcr.io/appscode-images/pgpool2:4.6.0
- ghcr.io/appscode-images/pgpool2_exporter:v1.2.2
- registry.k8s.io/git-sync/git-sync:v4.4.2
268 changes: 134 additions & 134 deletions charts/ace-installer-certified-crds/README.md
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3 changes: 3 additions & 0 deletions charts/ace-installer-certified-crds/values.yaml
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Expand Up @@ -90,6 +90,9 @@ helm:
enabled: true
version: "v2026.6.19"
values: # +doc-gen:break
global:
featureGates:
Pgpool: true
kubedb-provisioner:
enabled: true
kubedb-catalog:
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268 changes: 134 additions & 134 deletions charts/ace-installer-certified/README.md
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3 changes: 3 additions & 0 deletions charts/ace-installer-certified/values.yaml
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Expand Up @@ -90,6 +90,9 @@ helm:
enabled: true
version: "v2026.6.19"
values: # +doc-gen:break
global:
featureGates:
Pgpool: true
kubedb-provisioner:
enabled: true
kubedb-catalog:
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268 changes: 134 additions & 134 deletions charts/ace-installer/README.md
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3 changes: 3 additions & 0 deletions charts/ace-installer/values.yaml
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Expand Up @@ -90,6 +90,9 @@ helm:
enabled: true
version: "v2026.6.19"
values: # +doc-gen:break
global:
featureGates:
Pgpool: true
kubedb-provisioner:
enabled: true
kubedb-catalog:
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8 changes: 8 additions & 0 deletions charts/ace/README.md
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Expand Up @@ -139,6 +139,14 @@ The following table lists the configurable parameters of the `ace` chart and the
| settings.db.auth.username | | <code>postgres</code> |
| settings.db.auth.password | | <code>"xyz"</code> |
| settings.db.logSQL | | <code>false</code> |
| settings.pgpool.enabled | | <code>true</code> |
| settings.pgpool.replicas | | <code>1</code> |
| settings.pgpool.config.num_init_children | | <code>"25"</code> |
| settings.pgpool.config.max_pool | | <code>"15"</code> |
| settings.pgpool.config.client_idle_limit | | <code>"60"</code> |
| settings.pgpool.resources.limits.memory | | <code>512Mi</code> |
| settings.pgpool.resources.requests.memory | | <code>256Mi</code> |
| settings.pgpool.resources.requests.cpu | | <code>250m</code> |
| settings.cache.version | | <code>"7.2.4"</code> |
| settings.cache.cacheInterval | | <code>60</code> |
| settings.cache.persistence.size | | <code>10Gi</code> |
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4 changes: 4 additions & 0 deletions charts/ace/templates/_helpers.tpl
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Expand Up @@ -173,8 +173,12 @@ Returns the ServiceMonitor labels
Determine database host name
*/}}
{{- define "settings.database.host" -}}
{{- if .Values.settings.pgpool.enabled -}}
{{- printf "%s-pgpool.%s.svc:9999" (include "ace.fullname" .) .Release.Namespace -}}
{{- else -}}
{{- printf "%s-db.%s.svc:5432" (include "ace.fullname" .) .Release.Namespace -}}
{{- end -}}
{{- end -}}

{{- define "settings.oauth2JWTSecret" -}}
{{ .Values.settings.security.oauth2JWTSecret | default (randAlphaNum 43) }}
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2 changes: 1 addition & 1 deletion charts/ace/templates/db/db-config.yaml
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Expand Up @@ -12,7 +12,7 @@ metadata:
type: Opaque
stringData:
user.conf: |
max_connections=110
max_connections=400
{{- if .Values.pgoutbox.enabled }}
wal_level=logical
max_wal_senders=50
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115 changes: 115 additions & 0 deletions charts/ace/templates/db/pgpool-wait.yaml
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{{- if .Values.settings.pgpool.enabled }}
apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ include "appscode.serviceAccountName" . }}-pgpool-wait
namespace: {{ .Release.Namespace }}
labels:
{{- include "ace.labels" . | nindent 4 }}
annotations:
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "0"
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: {{ include "ace.fullname" . }}-pgpool-wait
namespace: {{ .Release.Namespace }}
labels:
{{- include "ace.labels" . | nindent 4 }}
annotations:
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "0"
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
rules:
# wait for the Postgres database to become Ready before creating the Pgpool
- apiGroups:
- kubedb.com
resources:
- postgreses
verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: {{ include "ace.fullname" . }}-pgpool-wait
namespace: {{ .Release.Namespace }}
labels:
{{- include "ace.labels" . | nindent 4 }}
annotations:
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "0"
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: {{ include "ace.fullname" . }}-pgpool-wait
subjects:
- kind: ServiceAccount
name: {{ include "appscode.serviceAccountName" . }}-pgpool-wait
namespace: {{ .Release.Namespace }}
---
apiVersion: batch/v1
kind: Job
metadata:
name: {{ include "ace.fullname" . }}-pgpool-wait
namespace: {{ .Release.Namespace }}
labels:
{{- include "ace.labels" . | nindent 4 }}
annotations:
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "1"
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
spec:
activeDeadlineSeconds: 21600
backoffLimit: 3
template:
spec:
{{- include "appscode.imagePullSecrets" . | nindent 6 }}
serviceAccountName: {{ include "appscode.serviceAccountName" . }}-pgpool-wait
automountServiceAccountToken: true
{{- if eq "true" ( include "distro.openshift" . ) }}
securityContext:
{{- toYaml (omit .Values.podSecurityContext "runAsUser" "runAsGroup" "fsGroup" "supplementalGroups") | nindent 8 }}
{{- else }}
securityContext:
{{- toYaml .Values.podSecurityContext | nindent 8 }}
{{- end }}
containers:
- name: kubectl
{{- if eq "true" ( include "distro.openshift" . ) }}
securityContext:
{{- toYaml (omit .Values.securityContext "runAsUser" "runAsGroup" "fsGroup" "supplementalGroups") | nindent 12 }}
{{- else }}
securityContext:
{{- toYaml .Values.securityContext | nindent 12 }}
{{- end }}
image: "{{ include "kubectl.registry" . }}/{{ .Values.kubectl.repository }}:{{ .Values.kubectl.tag | default .Chart.AppVersion }}"
imagePullPolicy: {{ .Values.kubectl.pullPolicy }}
command:
- /bin/sh
- -c
- |
echo "Waiting for Postgres {{ include "ace.fullname" . }}-db to become Ready..."
until [ "$(kubectl get pg {{ include "ace.fullname" . }}-db -n {{ .Release.Namespace }} -o jsonpath='{.status.phase}' 2>/dev/null)" = "Ready" ]; do
echo "Postgres {{ include "ace.fullname" . }}-db is not Ready yet. Retrying in 10s..."
sleep 10
done
echo "Postgres {{ include "ace.fullname" . }}-db is Ready. Proceeding to create Pgpool."
resources:
{{- toYaml .Values.resources | nindent 12 }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
restartPolicy: Never
{{- end }}
62 changes: 62 additions & 0 deletions charts/ace/templates/db/pgpool.yaml
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{{- if .Values.settings.pgpool.enabled }}
apiVersion: kubedb.com/v1alpha2
kind: Pgpool
metadata:
name: {{ include "ace.fullname" . }}-pgpool
namespace: {{ .Release.Namespace }}
labels:
{{- include "ace.labels" . | nindent 4 }}
annotations:
# Create the Pgpool only after the referenced Postgres is Ready. The
# pgpool-wait hook (weight 1) blocks until the DB reports phase=Ready, so
# this higher-weighted hook runs afterwards.
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "2"
"helm.sh/hook-delete-policy": before-hook-creation
spec:
version: "4.6.0"
replicas: {{ .Values.settings.pgpool.replicas }}
postgresRef:
name: {{ include "ace.fullname" . }}-db
namespace: {{ .Release.Namespace }}
syncUsers: true
deletionPolicy: {{ .Values.settings.db.deletionPolicy }}
{{- if .Values.settings.pgpool.config }}
configuration:
inline:
pgpool.conf: |
{{- range $k, $v := .Values.settings.pgpool.config }}
{{ $k }}={{ $v }}
{{- end }}
{{- end }}
podTemplate:
spec:
containers:
- name: pgpool
resources:
{{- toYaml .Values.settings.pgpool.resources | nindent 10 }}
{{- if eq (include "distro.openshift" $) "true" }}
securityContext:
runAsGroup: {{ .Values.securityContext.runAsUser }}
runAsUser: {{ .Values.securityContext.runAsUser }}
capabilities:
drop:
- ALL
runAsNonRoot: true
seccompProfile:
type: RuntimeDefault
securityContext:
fsGroup: {{ .Values.securityContext.runAsUser }}
runAsUser: {{ .Values.securityContext.runAsUser }}
runAsGroup: {{ .Values.securityContext.runAsUser }}
{{- end }}
{{- if .Values.global.monitoring }}
monitor:
agent: {{ .Values.global.monitoring.agent }}
prometheus:
serviceMonitor:
interval: 30s
labels:
{{- toYaml .Values.global.monitoring.serviceMonitor.labels | nindent 10 }}
{{- end }}
{{- end }}
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