Hi all, I know many threads have been opened on this subject, but believe me, I’ve tried everything and still can’t figure it out. I set up the structure as follows: I first installed PostgreSQL and Redis on Kubernetes.
helm show values bitnami/redis > redis.yaml
helm upgrade --install n8n-redis bitnami/redis --namespace n8n-ns --create-namespace --values redis.yaml
helm show values bitnami/postgresql > postgresql.yaml
helm upgrade --install n8n-postgresql bitnami/postgresql --namespace n8n-ns --create-namespace --values postgresql.yaml
Then I installed Redis Insight and Pgadmin to test their access.
apiVersion: apps/v1
kind: Deployment
metadata:
name: redis-ui
labels:
app: redis-ui
spec:
selector:
matchLabels:
app: redis-ui
template:
metadata:
labels:
app: redis-ui
spec:
hostAliases:
- ip: "1.1.1.1"
hostnames:
- "redisui.kurremkarmerruk.local"
containers:
- name: redis-ui
image: redislabs/redisinsight:1.13.0
imagePullPolicy: IfNotPresent
env:
- name: RITRUSTEDORIGINS
value: http://redisui.kurremkarmerruk.local
volumeMounts:
- name: db
mountPath: /db
ports:
- containerPort: 8001
protocol: TCP
volumes:
- name: db
emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
name: redis-ui
spec:
type: ClusterIP
ports:
- name: default
port: 8001
targetPort: 8001
selector:
app: redis-ui
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: redis-ui
spec:
ingressClassName: nginx-ingress
rules:
- host: redisui.kurremkarmerruk.local
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: redis-ui
port:
number: 8001
helm show values runix/pgadmin4 > pgadmin.yaml
helm upgrade --install n8n-pgadmin runix/pgadmin4 --namespace n8n-ns --create-namespace --values pgadmin.yaml
Once I was sure that Redis and PostgreSQL were working, I created the database and proceeded with the n8n installation.
Passwords are not important because it is a test environment.
CREATE DATABASE n8ndatabase OWNER postgres;
helm pull oci://8gears.container-registry.com/library/n8n --untar
# README
# High level values structure, overview and explanation of the values.yaml file.
# 1. Global and chart wide values, like the image repository, image tag, etc.
# 2. Ingress, (default is nginx, but you can change it to your own ingress controller)
# 3. Main n8n app configuration + kubernetes specific settings
# 4. Worker related settings + kubernetes specific settings
# 5. Webhook related settings + kubernetes specific settings
# 6. Raw Resources to pass through your own manifests like GatewayAPI, ServiceMonitor etc.
# 7. Valkey/Redis related settings and kubernetes specific settings
image:
repository: n8nio/n8n
pullPolicy: IfNotPresent
tag: "1.111.0"
imagePullSecrets: []
nameOverride:
fullnameOverride:
hostAliases:
# - ip: 1.1.1.1
# hostnames:
# - n8n.kurremkarmerruk.local
ingress:
enabled: true
annotations:
nginx.ingress.kubernetes.io/proxy-read-timeout: "3600"
nginx.ingress.kubernetes.io/proxy-send-timeout: "3600"
nginx.ingress.kubernetes.io/proxy-body-size: "512m"
nginx.ingress.kubernetes.io/proxy-buffering: "off"
nginx.ingress.kubernetes.io/proxy-http-version: "1.1"
# nginx.ingress.kubernetes.io/websocket-services: "system-n8n"
# nginx.ingress.kubernetes.io/enable-websockets: "true"
# nginx.ingress.kubernetes.io/upstream-vhost: "n8n.kurremkarmerruk.local"
nginx.ingress.kubernetes.io/configuration-snippet: |
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Origin "http://n8n.kurremkarmerruk.local";
className: "nginx-ingress"
hosts:
- host: n8n.kurremkarmerruk.local
paths:
- /
tls: []
# - hosts:
# - workflow.example.com
# secretName: host-domain-cert
main:
# See https://docs.n8n.io/hosting/configuration/environment-variables/ for all values.
config:
EXECUTIONS_MODE: "regular"
DB_TYPE: "postgresdb"
DB_POSTGRESDB_HOST: "n8n-postgresql.n8n-ns.svc.cluster.local"
DB_POSTGRESDB_PORT: "5432"
DB_POSTGRESDB_DATABASE: "n8ndatabase"
DB_POSTGRESDB_USER: "postgres"
DB_POSTGRESDB_SCHEMA: "public"
QUEUE_BULL_REDIS_HOST: "n8n-redis-master.n8n-ns.svc.cluster.local"
QUEUE_BULL_REDIS_PORT: "6379"
N8N_ENCRYPTION_KEY: "gfQ2hNAdduNQwaqX2yDsr2AX247mgAtVQC2fFUthNFYWVnN3f"
N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS: "true"
N8N_PORT: "5678"
N8N_PROTOCOL: "http"
N8N_SECURE_COOKIE: "false"
N8N_HOST: "n8n.kurremkarmerruk.local"
N8N_EDITOR_BASE_URL: "http://n8n.kurremkarmerruk.local/"
WEBHOOK_URL: "http://n8n.kurremkarmerruk.local/"
N8N_CORS_ALLOWED_ORIGINS: "http://n8n.kurremkarmerruk.local"
N8N_TRUST_PROXY: "true"
N8N_PROXY_HOPS: "1"
N8N_PUSH_BACKEND: "websocket"
# N8N_PUSH_ENDPOINT: "/push"
# N8N_LOG_LEVEL: "debug"
# DEBUG: "*"
secret:
DB_POSTGRESDB_PASSWORD: "2fFUthNFYWVnN3f"
QUEUE_BULL_REDIS_PASSWORD: "NHxRUfa3gZyKppgscFETqAQAN"
extraEnv:
persistence:
enabled: false
type: emptyDir # what type volume, possible options are [existing, emptyDir, dynamic] dynamic for Dynamic Volume Provisioning, existing for using an existing Claim
storageClass: "default"
accessModes:
- ReadWriteOnce
size: 1Gi
extraVolumes: []
extraVolumeMounts: []
replicaCount: 1
deploymentStrategy:
type: "Recreate"
serviceAccount:
create: true
annotations: {}
name: ""
deploymentAnnotations: {}
deploymentLabels: {}
podAnnotations: {}
podLabels: {}
podSecurityContext:
runAsNonRoot: true
runAsUser: 1000
runAsGroup: 1000
fsGroup: 1000
securityContext: {}
lifecycle: {}
command: []
livenessProbe:
httpGet:
path: /healthz
port: http
readinessProbe:
httpGet:
path: /healthz
port: http
initContainers: []
service:
enabled: true
annotations: {}
type: ClusterIP
port: 80
resources: {}
autoscaling:
enabled: false
minReplicas: 1
maxReplicas: 100
targetCPUUtilizationPercentage: 80
nodeSelector: {}
tolerations: []
affinity: {}
worker:
enabled: true
# additional (to main) config for worker
config:
EXECUTIONS_MODE: "queue"
DB_TYPE: "postgresdb"
DB_POSTGRESDB_HOST: "n8n-postgresql.n8n-ns.svc.cluster.local"
DB_POSTGRESDB_PORT: "5432"
DB_POSTGRESDB_DATABASE: "n8ndatabase"
DB_POSTGRESDB_USER: "postgres"
DB_POSTGRESDB_SCHEMA: "public"
QUEUE_BULL_REDIS_HOST: "n8n-redis-master.n8n-ns.svc.cluster.local"
QUEUE_BULL_REDIS_PORT: "6379"
QUEUE_BULL_CONCURRENCY: 1
# N8N_LOG_LEVEL: "debug"
# DEBUG: "*"
secret:
DB_POSTGRESDB_PASSWORD: "2fFUthNFYWVnN3f"
QUEUE_BULL_REDIS_PASSWORD: "NHxRUfa3gZyKppgscFETqAQAN"
extraEnv: {}
concurrency: 10
persistence:
enabled: false
type: emptyDir # what type volume, possible options are [existing, emptyDir, dynamic] dynamic for Dynamic Volume Provisioning, existing for using an existing Claim
storageClass: "-"
accessModes:
- ReadWriteOnce
size: 1Gi
replicaCount: 1
deploymentStrategy:
type: "Recreate"
serviceAccount:
create: true
annotations: {}
name: ""
deploymentAnnotations: {}
deploymentLabels: {}
podAnnotations: {}
podLabels: {}
podSecurityContext:
runAsNonRoot: true
runAsUser: 1000
runAsGroup: 1000
fsGroup: 1000
securityContext: {}
lifecycle: {}
command: []
commandArgs: []
livenessProbe:
httpGet:
path: /healthz
port: http
readinessProbe:
httpGet:
path: /healthz
port: http
initContainers: []
service:
annotations: {}
type: ClusterIP
port: 80
resources: {}
autoscaling:
enabled: false
minReplicas: 1
maxReplicas: 100
targetCPUUtilizationPercentage: 80
nodeSelector: {}
tolerations: []
affinity: {}
webhook:
enabled: true
# additional (to main) config for webhook
config:
EXECUTIONS_MODE: "queue"
DB_TYPE: "postgresdb"
DB_POSTGRESDB_HOST: "n8n-postgresql.n8n-ns.svc.cluster.local"
DB_POSTGRESDB_PORT: "5432"
DB_POSTGRESDB_DATABASE: "n8ndatabase"
DB_POSTGRESDB_USER: "postgres"
DB_POSTGRESDB_SCHEMA: "public"
QUEUE_BULL_REDIS_HOST: "n8n-redis-master.n8n-ns.svc.cluster.local"
QUEUE_BULL_REDIS_PORT: "6379"
# additional (to main) config for worker
secret:
DB_POSTGRESDB_PASSWORD: "2fFUthNFYWVnN3f"
QUEUE_BULL_REDIS_PASSWORD: "NHxRUfa3gZyKppgscFETqAQAN"
extraEnv: {}
persistence:
enabled: false
type: emptyDir # what type volume, possible options are [existing, emptyDir, dynamic] dynamic for Dynamic Volume Provisioning, existing for using an existing Claim
storageClass: "-"
accessModes:
- ReadWriteOnce
size: 1Gi
replicaCount: 1
deploymentStrategy:
type: "Recreate"
nameOverride: ""
fullnameOverride: ""
serviceAccount:
create: true
annotations: {}
name: ""
deploymentAnnotations: {}
deploymentLabels: {}
podAnnotations: {}
podLabels: {}
podSecurityContext:
runAsNonRoot: true
runAsUser: 1000
runAsGroup: 1000
fsGroup: 1000
securityContext: {}
lifecycle: {}
command: []
commandArgs: []
livenessProbe:
httpGet:
path: /healthz
port: http
readinessProbe:
httpGet:
path: /healthz
port: http
initContainers: []
service:
annotations: {}
type: ClusterIP
port: 80
resources: {}
autoscaling:
enabled: false
minReplicas: 1
maxReplicas: 100
targetCPUUtilizationPercentage: 80
nodeSelector: {}
tolerations: []
affinity: {}
extraManifests: []
extraTemplateManifests: []
valkey:
enabled: false
helm upgrade --install system-n8n . --namespace n8n-ns --create-namespace
The N8N screen is now appearing. I can start creating a workflow within it, but I am receiving a ‘connection lost’ error in the top right corner.
You have a connection issue or the server is down.
n8n should reconnect automatically once the issue is resolved.
I can’t see anything about this issue in the logs. When I enable debug mode, a lot of logs are generated. I can share them if anyone wants, but I didn’t post them directly because I think there’s just one tiny thing I need to change and that will fix it.
➜ ~ kubectl get pod -n n8n-ns
NAME READY STATUS RESTARTS AGE
n8n-pgadmin-pgadmin4-5fd5b49887-ms8bd 1/1 Running 0 61s
n8n-postgresql-0 1/1 Running 0 33h
n8n-redis-master-0 1/1 Running 0 33h
redis-ui-78b664f7c5-zcn78 1/1 Running 0 11m
system-n8n-768cfb777c-9nqhh 1/1 Running 0 104s
system-n8n-webhook-67b475fc7-kbxlr 1/1 Running 0 105s
system-n8n-worker-64b6944b56-ptfsp 1/1 Running 0 104s
➜ ~ k logs -n n8n-ns -f --selector app.kubernetes.io/instance=system-n8n
- N8N_BLOCK_ENV_ACCESS_IN_NODE -> The default value of N8N_BLOCK_ENV_ACCESS_IN_NODE will be changed from false to true in a future version. If you need to access environment variables from the Code Node or from expressions, please set N8N_BLOCK_ENV_ACCESS_IN_NODE=false. Learn more: https://docs.n8n.io/hosting/configuration/environment-variables/security/
[license SDK] Skipping renewal on init: renewOnInit is disabled in config
[license SDK] Skipping renewal on init: autoRenewEnabled is disabled in config
[license SDK] Skipping renewal on init: license cert is not initialized
n8n worker is now ready
* Version: 1.111.0
* Concurrency: 10
There are deprecations related to your environment variables. Please take the recommended actions to update your configuration:
- N8N_RUNNERS_ENABLED -> Running n8n without task runners is deprecated. Task runners will be turned on by default in a future version. Please set `N8N_RUNNERS_ENABLED=true` to enable task runners now and avoid potential issues in the future. Learn more: https://docs.n8n.io/hosting/configuration/task-runners/
- N8N_BLOCK_ENV_ACCESS_IN_NODE -> The default value of N8N_BLOCK_ENV_ACCESS_IN_NODE will be changed from false to true in a future version. If you need to access environment variables from the Code Node or from expressions, please set N8N_BLOCK_ENV_ACCESS_IN_NODE=false. Learn more: https://docs.n8n.io/hosting/configuration/environment-variables/security/
[license SDK] Skipping renewal on init: renewOnInit is disabled in config
[license SDK] Skipping renewal on init: autoRenewEnabled is disabled in config
[license SDK] Skipping renewal on init: license cert is not initialized
Version: 1.111.0
Webhook listener waiting for requests.
- N8N_RUNNERS_ENABLED -> Running n8n without task runners is deprecated. Task runners will be turned on by default in a future version. Please set `N8N_RUNNERS_ENABLED=true` to enable task runners now and avoid potential issues in the future. Learn more: https://docs.n8n.io/hosting/configuration/task-runners/
- N8N_BLOCK_ENV_ACCESS_IN_NODE -> The default value of N8N_BLOCK_ENV_ACCESS_IN_NODE will be changed from false to true in a future version. If you need to access environment variables from the Code Node or from expressions, please set N8N_BLOCK_ENV_ACCESS_IN_NODE=false. Learn more: https://docs.n8n.io/hosting/configuration/environment-variables/security/
[license SDK] Skipping renewal on init: license cert is not initialized
Version: 1.111.0
Editor is now accessible via:
http://n8n.kurremkarmerruk.local
(node:6) [DEP0060] DeprecationWarning: The `util._extend` API is deprecated. Please use Object.assign() instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
^C%
➜ ~
When I researched this issue using artificial intelligence and manual methods, it appeared that the problem was caused by a reverse proxy, but I was unable to find a clear solution.
My experiments are currently contained within the above YAML file.
I would be very grateful if you could look at the YAML file instead of sending a link to solve the problem. I think I’ve become blind to this issue after looking at it for a month.
