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I|🌸🌷SpiderUnderYourBed🌷🌸|I

•Created by I|🌸🌷SpiderUnderYourBed🌷🌸|I on 4/3/2025 in #general-help

Cloudflare tunnels is crashing in a loop

2025-04-03T08:41:04Z INF Starting tunnel tunnelID=72c14e86-612a-46a7-a80f-14cfac1f0764
2025-04-03T08:41:04Z INF Version 2025.4.0 (Checksum 7bec9d5632a9983230f7a30f287ce002d7944ba6b2eb9cf4252664e19d9b1c94)
2025-04-03T08:41:04Z INF GOOS: linux, GOVersion: go1.22.5-devel-cf, GoArch: amd64
2025-04-03T08:41:04Z INF Settings: map[no-autoupdate:true]
2025-04-03T08:41:04Z INF Environmental variables map[TUNNEL_TOKEN:*****]
2025-04-03T08:41:04Z INF Generated Connector ID: 55a8acb6-a834-4780-9bd8-59ab5fe86a00
2025-04-03T08:41:14Z ERR Failed to fetch features, default to disable error="lookup cfd-features.argotunnel.com on 10.43.0.10:53: dial udp 10.43.0.10:53: i/o timeout"
2025-04-03T08:41:54Z WRN Unable to lookup protocol percentage.
2025-04-03T08:41:54Z INF Initial protocol quic
2025-04-03T08:41:54Z INF ICMP proxy will use 172.16.91.156 as source for IPv4
2025-04-03T08:41:54Z INF ICMP proxy will use fe80::857:39ff:fe60:4b8b in zone eth0 as source for IPv6
2025-04-03T08:42:45Z INF ICMP proxy will use 172.16.91.156 as source for IPv4
2025-04-03T08:42:45Z INF ICMP proxy will use fe80::857:39ff:fe60:4b8b in zone eth0 as source for IPv6
2025-04-03T08:42:45Z INF Starting metrics server on [::]:20241/metrics
2025-04-03T08:43:35Z INF Tunnel server stopped
2025-04-03T08:43:35Z ERR Initiating shutdown error="Couldn't resolve SRV record &{region1.v2.argotunnel.com. 7844 1 1}: lookup region1.v2.argotunnel.com. on 10.43.0.10:53: read udp 172.16.91.156:54443->10.43.0.10:53: i/o timeout"
2025-04-03T08:43:35Z INF Metrics server stopped
Couldn't resolve SRV record &{region1.v2.argotunnel.com. 7844 1 1}: lookup region1.v2.argotunnel.com. on 10.43.0.10:53: read udp 172.16.91.156:54443->10.43.0.10:53: i/o timeout

2025-04-03T08:41:04Z INF Starting tunnel tunnelID=72c14e86-612a-46a7-a80f-14cfac1f0764
2025-04-03T08:41:04Z INF Version 2025.4.0 (Checksum 7bec9d5632a9983230f7a30f287ce002d7944ba6b2eb9cf4252664e19d9b1c94)
2025-04-03T08:41:04Z INF GOOS: linux, GOVersion: go1.22.5-devel-cf, GoArch: amd64
2025-04-03T08:41:04Z INF Settings: map[no-autoupdate:true]
2025-04-03T08:41:04Z INF Environmental variables map[TUNNEL_TOKEN:*****]
2025-04-03T08:41:04Z INF Generated Connector ID: 55a8acb6-a834-4780-9bd8-59ab5fe86a00
2025-04-03T08:41:14Z ERR Failed to fetch features, default to disable error="lookup cfd-features.argotunnel.com on 10.43.0.10:53: dial udp 10.43.0.10:53: i/o timeout"
2025-04-03T08:41:54Z WRN Unable to lookup protocol percentage.
2025-04-03T08:41:54Z INF Initial protocol quic
2025-04-03T08:41:54Z INF ICMP proxy will use 172.16.91.156 as source for IPv4
2025-04-03T08:41:54Z INF ICMP proxy will use fe80::857:39ff:fe60:4b8b in zone eth0 as source for IPv6
2025-04-03T08:42:45Z INF ICMP proxy will use 172.16.91.156 as source for IPv4
2025-04-03T08:42:45Z INF ICMP proxy will use fe80::857:39ff:fe60:4b8b in zone eth0 as source for IPv6
2025-04-03T08:42:45Z INF Starting metrics server on [::]:20241/metrics
2025-04-03T08:43:35Z INF Tunnel server stopped
2025-04-03T08:43:35Z ERR Initiating shutdown error="Couldn't resolve SRV record &{region1.v2.argotunnel.com. 7844 1 1}: lookup region1.v2.argotunnel.com. on 10.43.0.10:53: read udp 172.16.91.156:54443->10.43.0.10:53: i/o timeout"
2025-04-03T08:43:35Z INF Metrics server stopped
Couldn't resolve SRV record &{region1.v2.argotunnel.com. 7844 1 1}: lookup region1.v2.argotunnel.com. on 10.43.0.10:53: read udp 172.16.91.156:54443->10.43.0.10:53: i/o timeout

^ logs My tunnel k8s config: https://pastebin.com/aepHtqJV

2 replies

CDCloudflare Developers

•Created by I|🌸🌷SpiderUnderYourBed🌷🌸|I on 3/26/2025 in #general-help

K8s config with correct token yeilds "Register tunnel error from server side error="Unauthorized""

Config:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: tunnel
  labels:
    app: tunnel
spec:
  replicas: 1
  selector:
    matchLabels:
      app: tunnel
  template:
    metadata:
      labels:
        app: tunnel
    spec:
      containers:
        - name: tunnel
          image: cloudflare/cloudflared:latest
          args:
            - tunnel
            - --no-autoupdate
            - run
            - --protocol=http2
          env:
            - name: TUNNEL_TOKEN
              valueFrom:
                configMapKeyRef:
                  name: env
                  key: CLOUDFLARE_TUNNEL_TOKEN
      restartPolicy: Always

apiVersion: apps/v1
kind: Deployment
metadata:
  name: tunnel
  labels:
    app: tunnel
spec:
  replicas: 1
  selector:
    matchLabels:
      app: tunnel
  template:
    metadata:
      labels:
        app: tunnel
    spec:
      containers:
        - name: tunnel
          image: cloudflare/cloudflared:latest
          args:
            - tunnel
            - --no-autoupdate
            - run
            - --protocol=http2
          env:
            - name: TUNNEL_TOKEN
              valueFrom:
                configMapKeyRef:
                  name: env
                  key: CLOUDFLARE_TUNNEL_TOKEN
      restartPolicy: Always

Adding the protocol being http2 was necessary to get this working, also, I checked the token multiple times, its correct, here is the exact error:

2025-03-26T18:36:51Z ERR Register tunnel error from server side error="Unauthorized: Failed to get tunnel" connIndex=0 event=0 ip=198.41.192.77
2025-03-26T18:36:51Z INF Retrying connection in up to 1m4s connIndex=0 event=0 ip=198.41.192.77

2025-03-26T18:36:51Z ERR Register tunnel error from server side error="Unauthorized: Failed to get tunnel" connIndex=0 event=0 ip=198.41.192.77
2025-03-26T18:36:51Z INF Retrying connection in up to 1m4s connIndex=0 event=0 ip=198.41.192.77

So cloudflare was working fine, until i started to get this issue. Since its not a incorrect token, what could it be? and how to fix, maybe its something that can be fixed in the k8s config

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