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cloudflared.yaml
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---
apiVersion: apps/v1
kind: Deployment
metadata:
name: cloudflared
spec:
selector:
matchLabels:
app: cloudflared
replicas: 2 # You could also consider elastic scaling for this deployment
template:
metadata:
labels:
app: cloudflared
spec:
containers:
- name: cloudflared
image: cloudflare/cloudflared:2022.3.0
args:
- tunnel
# Points cloudflared to the config file, which configures what
# cloudflared will actually do. This file is created by a ConfigMap
# below.
- --config
- /etc/cloudflared/config/config.yaml
- run
livenessProbe:
httpGet:
# Cloudflared has a /ready endpoint which returns 200 if and only if
# it has an active connection to the edge.
path: /ready
port: 2000
failureThreshold: 1
initialDelaySeconds: 10
periodSeconds: 10
volumeMounts:
- name: config
mountPath: /etc/cloudflared/config
readOnly: true
# Each tunnel has an associated "credentials file" which authorizes machines
# to run the tunnel. cloudflared will read this file from its local filesystem,
# and it'll be stored in a k8s secret.
- name: creds
mountPath: /etc/cloudflared/creds
readOnly: true
volumes:
- name: creds
secret:
# By default, the credentials file will be created under ~/.cloudflared/<tunnel ID>.json
# when you run `cloudflared tunnel create`. You can move it into a secret by using:
# ```sh
# kubectl create secret generic tunnel-credentials \
# --from-file=credentials.json=/Users/yourusername/.cloudflared/<tunnel ID>.json
# ```
secretName: tunnel-credentials
# Create a config.yaml file from the ConfigMap below.
- name: config
configMap:
name: cloudflared
items:
- key: config.yaml
path: config.yaml
---
# This ConfigMap is just a way to define the cloudflared config.yaml file in k8s.
# It's useful to define it in k8s, rather than as a stand-alone .yaml file, because
# this lets you use various k8s templating solutions (e.g. Helm charts) to
# parameterize your config, instead of just using string literals.
apiVersion: v1
kind: ConfigMap
metadata:
name: cloudflared
data:
config.yaml: |
# Name of the tunnel you want to run
tunnel: example-tunnel
credentials-file: /etc/cloudflared/creds/credentials.json
# Serves the metrics server under /metrics and the readiness server under /ready
metrics: 0.0.0.0:2000
# Autoupdates applied in a k8s pod will be lost when the pod is removed or restarted, so
# autoupdate doesn't make sense in Kubernetes. However, outside of Kubernetes, we strongly
# recommend using autoupdate.
no-autoupdate: true
# The `ingress` block tells cloudflared which local service to route incoming
# requests to. For more about ingress rules, see
# https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/configuration/ingress
#
# Remember, these rules route traffic from cloudflared to a local service. To route traffic
# from the internet to cloudflared, run `cloudflared tunnel route dns <tunnel> <hostname>`.
# E.g. `cloudflared tunnel route dns example-tunnel tunnel.example.com`.
ingress:
# The first rule proxies traffic to the httpbin sample Service defined in app.yaml
- hostname: tunnel.example.com
service: http://web-service:80
# This rule sends traffic to the built-in hello-world HTTP server. This can help debug connectivity
# issues. If hello.example.com resolves and tunnel.example.com does not, then the problem is
# in the connection from cloudflared to your local service, not from the internet to cloudflared.
- hostname: hello.example.com
service: hello_world
# This rule matches any traffic which didn't match a previous rule, and responds with HTTP 404.
- service: http_status:404