gitops/ghost: prepare initial deployment with secrets in vault

This commit is contained in:
Jan Novak
2026-01-08 10:40:13 +01:00
parent b081e947f5
commit 099734fb6b
11 changed files with 647 additions and 0 deletions

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apiVersion: v1
kind: Namespace
metadata:
name: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes
app.kubernetes.io/name: ghost-on-kubernetes
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: namespace
app.kubernetes.io/part-of: ghost-on-kubernetes

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apiVersion: external-secrets.io/v1
kind: ExternalSecret
metadata:
name: ghost-config
namespace: ghost-on-kubernetes
spec:
refreshInterval: 1h
secretStoreRef:
name: vault-backend
kind: ClusterSecretStore
target:
name: ghost-config
data:
- secretKey: gmail-app-password
remoteRef:
key: k8s_home/ghost # Vault path (without 'data/' prefix)
property: gmail-app-password

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apiVersion: external-secrets.io/v1
kind: ExternalSecret
metadata:
name: ghost-on-kubernetes-mysql-env
namespace: ghost-on-kubernetes
spec:
refreshInterval: 1h
secretStoreRef:
name: vault-backend
kind: ClusterSecretStore
target:
name: ghost-on-kubernetes-mysql-env # resulting K8s secret name
data:
- secretKey: MYSQL_DATABASE # key in K8s secret
remoteRef:
key: k8s_home/ghost # Vault path (without 'data/' prefix)
property: mysql-db-name # field within Vault secret
- secretKey: MYSQL_USER # key in K8s secret
remoteRef:
key: k8s_home/ghost
property: mysql-db-user
- secretKey: MYSQL_PASSWORD
remoteRef:
key: k8s_home/ghost
property: mysql-db-password
- secretKey: MYSQL_ROOT_PASSWORD
remoteRef:
key: k8s_home/ghost
property: mysql-db-root-password
- secretKey: MYSQL_HOST
remoteRef:
key: k8s_home/ghost
property: mysql-host
# type: Opaque
# stringData:
# MYSQL_DATABASE: mysql-db-name # Same as in config.production.json
# MYSQL_USER: mysql-db-user # Same as in config.production.json
# MYSQL_PASSWORD: mysql-db-password # Same as in config.production.json
# MYSQL_ROOT_PASSWORD: mysql-db-root-password # Same as in config.production.json
# MYSQL_HOST: '%' # Same as in config.production.json

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apiVersion: v1
kind: Secret
metadata:
name: ghost-on-kubernetes-mysql-env
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes-mysql
app.kubernetes.io/name: ghost-on-kubernetes-mysql-env
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: database-secret
app.kubernetes.io/part-of: ghost-on-kubernetes
type: Opaque
stringData:
MYSQL_DATABASE: mysql-db-name # Same as in config.production.json
MYSQL_USER: mysql-db-user # Same as in config.production.json
MYSQL_PASSWORD: mysql-db-password # Same as in config.production.json
MYSQL_ROOT_PASSWORD: mysql-db-root-password # Same as in config.production.json
MYSQL_HOST: '%' # Same as in config.production.json

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apiVersion: v1
kind: Secret
metadata:
name: tls-secret
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes
app.kubernetes.io/name: tls-secret
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: tls-secret
app.kubernetes.io/part-of: ghost-on-kubernetes
type: kubernetes.io/tls
stringData:
tls.crt: content-tls-crt-base64 # Optional, if you want to use your own TLS certificate
tls.key: content-tls-key-base64 # Optional, if you want to use your own TLS certificate

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apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: k8s-ghost-content
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes
app.kubernetes.io/name: k8s-ghost-content
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: storage
app.kubernetes.io/part-of: ghost-on-kubernetes
spec:
# Change this to your storageClassName, we suggest using a storageClassName that supports ReadWriteMany for production.
storageClassName: freenas-iscsi
volumeMode: Filesystem
# Change this to your accessModes. We suggest ReadWriteMany for production, ReadWriteOnce for development.
# With ReadWriteMany, you can have multiple replicas of Ghost, so you can achieve high availability.
# Note that ReadWriteMany is not supported by all storage providers and may require additional configuration.
# Ghost officialy doesn't support HA, they suggest using a CDN or caching. Info: https://ghost.org/docs/faq/clustering-sharding-multi-server/
accessModes:
- ReadWriteOnce # Change this to your accessModes if needed, we suggest ReadWriteMany so we can scale the deployment later.
resources:
requests:
storage: 1Gi
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: ghost-on-kubernetes-mysql-pvc
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes-mysql
app.kubernetes.io/name: ghost-on-kubernetes-mysql-pvc
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: database-storage
app.kubernetes.io/part-of: ghost-on-kubernetes
spec:
storageClassName: freenas-iscsi
volumeMode: Filesystem
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 1Gi

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apiVersion: v1
kind: Service
metadata:
name: ghost-on-kubernetes-service
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes
app.kubernetes.io/name: ghost-on-kubernetes-service
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: service-frontend
app.kubernetes.io/part-of: ghost-on-kubernetes
spec:
ports:
- port: 2368
protocol: TCP
targetPort: ghk8s
name: ghk8s
type: ClusterIP
selector:
app: ghost-on-kubernetes
---
apiVersion: v1
kind: Service
metadata:
name: ghost-on-kubernetes-mysql-service
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes-mysql
app.kubernetes.io/name: ghost-on-kubernetes-mysql-service
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: service-database
app.kubernetes.io/part-of: ghost-on-kubernetes
spec:
ports:
- port: 3306
protocol: TCP
targetPort: mysqlgh
name: mysqlgh
type: ClusterIP
clusterIP: None
selector:
app: ghost-on-kubernetes-mysql

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apiVersion: v1
kind: Secret
metadata:
name: ghost-config-prod
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes
app.kubernetes.io/name: ghost-config-prod
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: ghost-config
app.kubernetes.io/part-of: ghost-on-kubernetes
type: Opaque
stringData:
config.production.json: |-
{
"url": "https://ghost.lab.home.hrajfrisbee.cz",
"admin": {
"url": "https://ghost.lab.home.hrajfrisbee.cz"
},
"server": {
"port": 2368,
"host": "0.0.0.0"
},
"mail": {
"transport": "SMTP",
"from": "user@server.com",
"options": {
"service": "Google",
"host": "smtp.gmail.com",
"port": 465,
"secure": true,
"auth": {
"user": "user@server.com",
"pass": "passsword"
}
}
},
"logging": {
"transports": [
"stdout"
]
},
"database": {
"client": "mysql",
"connection":
{
"host": "ghost-on-kubernetes-mysql-service",
"user": "mysql-db-user",
"password": "mysql-db-password",
"database": "mysql-db-name",
"port": "3306"
}
},
"process": "local",
"paths": {
"contentPath": "/home/nonroot/app/ghost/content"
}
}

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apiVersion: apps/v1
kind: StatefulSet
metadata:
name: ghost-on-kubernetes-mysql
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes-mysql
app.kubernetes.io/name: ghost-on-kubernetes-mysql
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: database
app.kubernetes.io/part-of: ghost-on-kubernetes
spec:
serviceName: ghost-on-kubernetes-mysql-service
replicas: 1
selector:
matchLabels:
app: ghost-on-kubernetes-mysql
template:
metadata:
labels:
app: ghost-on-kubernetes-mysql
spec:
initContainers:
- name: ghost-on-kubernetes-mysql-init
securityContext:
allowPrivilegeEscalation: false
privileged: false
readOnlyRootFilesystem: true
image: docker.io/busybox:stable-musl
imagePullPolicy: Always # You can change this value according to your needs
command:
- /bin/sh
- -c
- |
set -e
echo 'Changing ownership of mysql mount directory to 65534:65534'
chown -Rfv 65534:65534 /mnt/mysql || echo 'Error changing ownership of mysql mount directory to 65534:65534'
echo 'Changing ownership of tmp mount directory to 65534:65534'
chown -Rfv 65534:65534 /mnt/tmp || echo 'Error changing ownership of tmp mount directory to 65534:65534'
echo 'Changing ownership of socket mount directory to 65534:65534'
chown -Rfv 65534:65534 /mnt/var/run/mysqld || echo 'Error changing ownership of socket mount directory to 65534:65534'
volumeMounts:
- name: ghost-on-kubernetes-mysql-volume
mountPath: /mnt/mysql
subPath: mysql-empty-subdir
readOnly: false
- name: ghost-on-kubernetes-mysql-tmp
mountPath: /mnt/tmp
readOnly: false
- name: ghost-on-kubernetes-mysql-socket
mountPath: /mnt/var/run/mysqld
readOnly: false
# YOu can ajust the resources according to your needs
resources:
requests:
memory: 0Mi
cpu: 0m
limits:
memory: 1Gi
cpu: 900m
containers:
- name: ghost-on-kubernetes-mysql
securityContext:
allowPrivilegeEscalation: false
privileged: false
readOnlyRootFilesystem: true
runAsNonRoot: true
runAsUser: 65534
image: docker.io/mysql:8.4
imagePullPolicy: Always # You can change this value according to your needs
envFrom:
- secretRef:
name: ghost-on-kubernetes-mysql-env
resources:
requests:
memory: 500Mi # You can change this value according to your needs
cpu: 300m # You can change this value according to your needs
limits:
memory: 1Gi # You can change this value according to your needs
cpu: 900m # You can change this value according to your needs
ports:
- containerPort: 3306
protocol: TCP
name: mysqlgh
volumeMounts:
- name: ghost-on-kubernetes-mysql-volume
mountPath: /var/lib/mysql
subPath: mysql-empty-subdir
readOnly: false
- name: ghost-on-kubernetes-mysql-tmp
mountPath: /tmp
readOnly: false
- name: ghost-on-kubernetes-mysql-socket
mountPath: /var/run/mysqld
readOnly: false
automountServiceAccountToken: false
# Optional: Uncomment the following to specify node selectors
# affinity:
# nodeAffinity:
# requiredDuringSchedulingIgnoredDuringExecution:
# nodeSelectorTerms:
# - matchExpressions:
# - key: node-role.kubernetes.io/worker
# operator: In
# values:
# - 'true'
securityContext:
seccompProfile:
type: RuntimeDefault
volumes:
- name: ghost-on-kubernetes-mysql-volume
persistentVolumeClaim:
claimName: ghost-on-kubernetes-mysql-pvc
- name: ghost-on-kubernetes-mysql-tmp
emptyDir:
sizeLimit: 128Mi
- name: ghost-on-kubernetes-mysql-socket
emptyDir:
sizeLimit: 128Mi

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apiVersion: apps/v1
kind: Deployment
metadata:
name: ghost-on-kubernetes
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes
app.kubernetes.io/name: ghost-on-kubernetes
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: ghost
app.kubernetes.io/part-of: ghost-on-kubernetes
spec:
# If you want HA for your Ghost instance, you can increase the number of replicas AFTER creation and you need to adjust the storage class. See 02-pvc.yaml for more information.
replicas: 1
selector:
matchLabels:
app: ghost-on-kubernetes
minReadySeconds: 5
strategy:
type: RollingUpdate
rollingUpdate:
maxUnavailable: 0
maxSurge: 3
revisionHistoryLimit: 4
progressDeadlineSeconds: 600
template:
metadata:
namespace: ghost-on-kubernetes
labels:
app: ghost-on-kubernetes
spec:
automountServiceAccountToken: false # Disable automounting of service account token
volumes:
- name: k8s-ghost-content
persistentVolumeClaim:
claimName: k8s-ghost-content
- name: ghost-config-prod
secret:
secretName: ghost-config-prod
defaultMode: 420
- name: tmp
emptyDir:
sizeLimit: 64Mi
initContainers:
- name: permissions-fix
imagePullPolicy: Always
image: docker.io/busybox:stable-musl
env:
- name: GHOST_INSTALL
value: /home/nonroot/app/ghost
- name: GHOST_CONTENT
value: /home/nonroot/app/ghost/content
- name: NODE_ENV
value: production
securityContext:
readOnlyRootFilesystem: true
allowPrivilegeEscalation: false
resources:
limits:
cpu: 900m
memory: 1000Mi
requests:
cpu: 100m
memory: 128Mi
command:
- /bin/sh
- '-c'
- |
set -e
export DIRS='files logs apps themes data public settings images media'
echo 'Check if base dirs exists, if not, create them'
echo "Directories to check: $DIRS"
for dir in $DIRS; do
if [ ! -d $GHOST_CONTENT/$dir ]; then
echo "Creating $GHOST_CONTENT/$dir directory"
mkdir -pv $GHOST_CONTENT/$dir || echo "Error creating $GHOST_CONTENT/$dir directory"
fi
chown -Rfv 65532:65532 $GHOST_CONTENT/$dir && echo "chown ok on $dir" || echo "Error changing ownership of $GHOST_CONTENT/$dir directory"
done
exit 0
volumeMounts:
- name: k8s-ghost-content
mountPath: /home/nonroot/app/ghost/content
readOnly: false
containers:
- name: ghost-on-kubernetes
# For development, you can use the following image:
# image: ghcr.io/sredevopsorg/ghost-on-kubernetes:latest-dev
# image: ghcr.io/sredevopsorg/ghost-on-kubernetes:main
image: ghost:bookworm
imagePullPolicy: Always
ports:
- name: ghk8s
containerPort: 2368
protocol: TCP
# You should uncomment the following lines in production. Change the values according to your environment.
readinessProbe:
httpGet:
path: /ghost/api/v4/admin/site/
port: ghk8s
httpHeaders:
- name: X-Forwarded-Proto
value: https
- name: Host
value: ghost.lab.home.hrajfrisbee.cz
periodSeconds: 10
timeoutSeconds: 3
successThreshold: 1
failureThreshold: 3
initialDelaySeconds: 10
livenessProbe:
httpGet:
path: /ghost/api/v4/admin/site/
port: ghk8s
httpHeaders:
- name: X-Forwarded-Proto
value: https
- name: Host
value: ghost.lab.home.hrajfrisbee.cz
periodSeconds: 300
timeoutSeconds: 3
successThreshold: 1
failureThreshold: 1
initialDelaySeconds: 30
env:
- name: NODE_ENV
value: production
- name: url
value: "https://ghost.lab.home.hrajfrisbee.cz"
- name: database__client
value: "mysql"
- name: database__connection__host
value: "ghost-on-kubernetes-mysql-service"
- name: database__connection__port
value: "3306"
- name: database__connection__user
valueFrom:
secretKeyRef:
name: ghost-on-kubernetes-mysql-env
key: MYSQL_USER
- name: database__connection__password
valueFrom:
secretKeyRef:
name: ghost-on-kubernetes-mysql-env
key: MYSQL_PASSWORD
- name: database__connection__database
value: "ghost"
- name: mail__transport
value: "SMTP"
- name: mail__options__service
value: "Gmail"
- name: mail__options__auth__user
value: "kacerr.cz@gmail.com"
- name: mail__options__auth__pass
valueFrom:
secretKeyRef:
name: ghost-config
key: gmail-app-password
- name: mail__from
value: "'Kacerr's Blog' <kacerr.cz@gmail.com>"
resources:
limits:
cpu: 800m
memory: 800Mi
requests:
cpu: 100m
memory: 256Mi
volumeMounts:
- name: k8s-ghost-content
mountPath: /home/nonroot/app/ghost/content
readOnly: false
- name: ghost-config-prod
readOnly: true
mountPath: /home/nonroot/app/ghost/config.production.json
subPath: config.production.json
- name: tmp # This is the temporary volume mount to allow loading themes
mountPath: /tmp
readOnly: false
securityContext:
readOnlyRootFilesystem: true
allowPrivilegeEscalation: false
runAsNonRoot: true
runAsUser: 65532
restartPolicy: Always
terminationGracePeriodSeconds: 15
dnsPolicy: ClusterFirst
# Optional: Uncomment the following to specify node selectors
# affinity:
# nodeAffinity:
# requiredDuringSchedulingIgnoredDuringExecution:
# nodeSelectorTerms:
# - matchExpressions:
# - key: node-role.kubernetes.io/worker
# operator: In
# values:
# - 'true'
securityContext: {}

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# Optional: If you have a domain name, you can create an Ingress resource to expose your Ghost blog to the internet.
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ghost-on-kubernetes-ingress
namespace: ghost-on-kubernetes
annotations:
cert-manager.io/cluster-issuer: letsencrypt-prod
labels:
app: ghost-on-kubernetes
app.kubernetes.io/name: ghost-on-kubernetes-ingress
app.kubernetes.io/instance: ghost-on-kubernetes
app.kubernetes.io/version: '6.0'
app.kubernetes.io/component: ingress
app.kubernetes.io/part-of: ghost-on-kubernetes
spec:
ingressClassName: nginx
tls:
- hosts:
- ghost.lab.home.hrajfrisbee.cz
secretName: tls-secret
rules:
- host: ghost.lab.home.hrajfrisbee.cz
http:
paths:
- path: /
pathType: ImplementationSpecific
backend:
service:
name: ghost-on-kubernetes-service
port:
name: ghk8s