Traefik in Docker not issuing SSL certificates

codingcoffee · November 8, 2024, 2:58pm

Here's my docker-compose.yml

services:
  traefik:
    image: "traefik:v3.2.0"
    volumes:
      - "./traefik.yml:/etc/traefik/traefik.yml:ro"
      - "/etc/letsencrypt/:/etc/letsencrypt/"
    ports:
      - "80:80"
      - "443:443"
      - "8080:8080"

Here's my traefik.yml

api:
  dashboard: true
  insecure: true

log:
  level: DEBUG

entryPoints:
  web:
    address: ":80"
  websecure:
    address: ":443"

http:
  services:
    special-service:
      loadBalancer:
        servers:
          - url: "http://server-1.xxx.xx:8000"
          - url: "http://server-2.xxx.xx:8000"
        healthcheck:
          path: /healthz
          interval: "2s"
          timeout: "1s"

  routers:
    traefik-router:
      rule: "Host(`traefik.xxx.xx`) && (PathPrefix(`/api`) || PathPrefix(`/dashboard`))"
      service: api@internal
      entrypoints:
        - web
        - websecure


    special-router:
      rule: "Host(`special.xxx.xx`)"
      service: special-service
      entrypoints:
        - web
        - websecure
      tls:
        certresolver: letsencrypt

certificatesresolvers:
  letsencrypt:
    acme:
      email: xxx@xxx.xx
      storage: /etc/letsencrypt/acme.json
      httpchallenge:
        entrypoint: web

Here are the logs from the container

2024-11-08T14:26:47Z INF github.com/traefik/traefik/v3/cmd/traefik/traefik.go:103 > Traefik version 3.2.0 built on 2024-10-28T14:49:00Z version=3.2.0
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/cmd/traefik/traefik.go:110 > Static configuration loaded [json] staticConfiguration={"api":{"dashboard":true,"insecure":true},"certificatesResolvers":{"letsencrypt":{"acme":{"caServer":"https://acme-v02.api.letsencrypt.org/directory","certificatesDuration":2160,"email":"xxx@xxx.xx","httpChallenge":{"entryPoint":"web"},"keyType":"RSA4096","storage":"/etc/letsencrypt/acme.json"}}},"entryPoints":{"traefik":{"address":":8080","forwardedHeaders":{},"http":{"maxHeaderBytes":1048576},"http2":{"maxConcurrentStreams":250},"transport":{"lifeCycle":{"graceTimeOut":"10s"},"respondingTimeouts":{"idleTimeout":"3m0s","readTimeout":"1m0s"}},"udp":{"timeout":"3s"}},"web":{"address":":80","forwardedHeaders":{},"http":{"maxHeaderBytes":1048576},"http2":{"maxConcurrentStreams":250},"transport":{"lifeCycle":{"graceTimeOut":"10s"},"respondingTimeouts":{"idleTimeout":"3m0s","readTimeout":"1m0s"}},"udp":{"timeout":"3s"}},"websecure":{"address":":443","forwardedHeaders":{},"http":{"maxHeaderBytes":1048576},"http2":{"maxConcurrentStreams":250},"transport":{"lifeCycle":{"graceTimeOut":"10s"},"respondingTimeouts":{"idleTimeout":"3m0s","readTimeout":"1m0s"}},"udp":{"timeout":"3s"}}},"global":{"checkNewVersion":true},"log":{"format":"common","level":"DEBUG"},"providers":{"providersThrottleDuration":"2s"},"serversTransport":{"maxIdleConnsPerHost":200},"tcpServersTransport":{"dialKeepAlive":"15s","dialTimeout":"30s"}}
2024-11-08T14:26:47Z INF github.com/traefik/traefik/v3/cmd/traefik/traefik.go:626 >
Stats collection is disabled.
Help us improve Traefik by turning this feature on :)
More details on: https://doc.traefik.io/traefik/contributing/data-collection/

2024-11-08T14:26:47Z INF github.com/traefik/traefik/v3/pkg/server/configurationwatcher.go:73 > Starting provider aggregator aggregator.ProviderAggregator
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/server/server_entrypoint_tcp.go:231 > Starting TCP Server entryPointName=websecure
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/server/server_entrypoint_tcp.go:231 > Starting TCP Server entryPointName=web
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/server/server_entrypoint_tcp.go:231 > Starting TCP Server entryPointName=traefik
2024-11-08T14:26:47Z INF github.com/traefik/traefik/v3/pkg/provider/aggregator/aggregator.go:202 > Starting provider *acme.ChallengeTLSALPN
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/provider/aggregator/aggregator.go:203 > *acme.ChallengeTLSALPN provider configuration config={}
2024-11-08T14:26:47Z INF github.com/traefik/traefik/v3/pkg/provider/aggregator/aggregator.go:202 > Starting provider *traefik.Provider
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/provider/aggregator/aggregator.go:203 > *traefik.Provider provider configuration config={}
2024-11-08T14:26:47Z INF github.com/traefik/traefik/v3/pkg/provider/aggregator/aggregator.go:202 > Starting provider *acme.Provider
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/provider/aggregator/aggregator.go:203 > *acme.Provider provider configuration config={"HTTPChallengeProvider":{},"ResolverName":"letsencrypt","TLSChallengeProvider":{},"caServer":"https://acme-v02.api.letsencrypt.org/directory","certificatesDuration":2160,"email":"xxx@xxx.xx","httpChallenge":{"entryPoint":"web"},"keyType":"RSA4096","storage":"/etc/letsencrypt/acme.json","store":{}}
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/provider/acme/provider.go:221 > Attempt to renew certificates "720h0m0s" before expiry and check every "24h0m0s" acmeCA=https://acme-v02.api.letsencrypt.org/directory providerName=letsencrypt.acme
2024-11-08T14:26:47Z INF github.com/traefik/traefik/v3/pkg/provider/acme/provider.go:859 > Testing certificate renew... acmeCA=https://acme-v02.api.letsencrypt.org/directory providerName=letsencrypt.acme
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/server/configurationwatcher.go:227 > Configuration received config={"http":{"middlewares":{"dashboard_redirect":{"redirectRegex":{"permanent":true,"regex":"^(http:\\/\\/(\\[[\\w:.]+\\]|[\\w\\._-]+)(:\\d+)?)\\/$","replacement":"${1}/dashboard/"}},"dashboard_stripprefix":{"stripPrefix":{"prefixes":["/dashboard/","/dashboard"]}}},"routers":{"acme-http":{"entryPoints":["web"],"priority":9223372036854775807,"rule":"PathPrefix(`/.well-known/acme-challenge/`)","ruleSyntax":"v3","service":"acme-http@internal"},"api":{"entryPoints":["traefik"],"priority":9223372036854775806,"rule":"PathPrefix(`/api`)","ruleSyntax":"v3","service":"api@internal"},"dashboard":{"entryPoints":["traefik"],"middlewares":["dashboard_redirect@internal","dashboard_stripprefix@internal"],"priority":9223372036854775805,"rule":"PathPrefix(`/`)","ruleSyntax":"v3","service":"dashboard@internal"}},"serversTransports":{"default":{"maxIdleConnsPerHost":200}},"services":{"acme-http":{},"api":{},"dashboard":{},"noop":{}}},"tcp":{"serversTransports":{"default":{"dialKeepAlive":"15s","dialTimeout":"30s"}}},"tls":{},"udp":{}} providerName=internal
2024-11-08T14:26:47Z DBG github.com/traefik/traefik/v3/pkg/server/configurationwatcher.go:227 > Configuration received config={"http":{},"tcp":{},"tls":{},"udp":{}} providerName=letsencrypt.acme
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/tls/tlsmanager.go:321 > No default certificate, fallback to the internal generated certificate tlsStoreName=default
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/stripprefix/strip_prefix.go:32 > Creating middleware entryPointName=traefik middlewareName=dashboard_stripprefix@internal middlewareType=StripPrefix routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/observability/middleware.go:33 > Adding tracing to middleware entryPointName=traefik middlewareName=dashboard_stripprefix@internal routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/redirect/redirect_regex.go:17 > Creating middleware entryPointName=traefik middlewareName=dashboard_redirect@internal middlewareType=RedirectRegex routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/redirect/redirect_regex.go:18 > Setting up redirection from ^(http:\/\/(\[[\w:.]+\]|[\w\._-]+)(:\d+)?)\/$ to ${1}/dashboard/ entryPointName=traefik middlewareName=dashboard_redirect@internal middlewareType=RedirectRegex routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/observability/middleware.go:33 > Adding tracing to middleware entryPointName=traefik middlewareName=dashboard_redirect@internal routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/recovery/recovery.go:25 > Creating middleware entryPointName=traefik middlewareName=traefik-internal-recovery middlewareType=Recovery
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/recovery/recovery.go:25 > Creating middleware entryPointName=web middlewareName=traefik-internal-recovery middlewareType=Recovery
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/tls/tlsmanager.go:321 > No default certificate, fallback to the internal generated certificate tlsStoreName=default
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/stripprefix/strip_prefix.go:32 > Creating middleware entryPointName=traefik middlewareName=dashboard_stripprefix@internal middlewareType=StripPrefix routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/observability/middleware.go:33 > Adding tracing to middleware entryPointName=traefik middlewareName=dashboard_stripprefix@internal routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/redirect/redirect_regex.go:17 > Creating middleware entryPointName=traefik middlewareName=dashboard_redirect@internal middlewareType=RedirectRegex routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/redirect/redirect_regex.go:18 > Setting up redirection from ^(http:\/\/(\[[\w:.]+\]|[\w\._-]+)(:\d+)?)\/$ to ${1}/dashboard/ entryPointName=traefik middlewareName=dashboard_redirect@internal middlewareType=RedirectRegex routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/observability/middleware.go:33 > Adding tracing to middleware entryPointName=traefik middlewareName=dashboard_redirect@internal routerName=dashboard@internal
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/recovery/recovery.go:25 > Creating middleware entryPointName=traefik middlewareName=traefik-internal-recovery middlewareType=Recovery
2024-11-08T14:26:48Z DBG github.com/traefik/traefik/v3/pkg/middlewares/recovery/recovery.go:25 > Creating middleware entryPointName=web middlewareName=traefik-internal-recovery middlewareType=Recovery

/etc/letsencrypt/acme.json is empty.

I've already checked

the domain name is pointing to the correct IP
I'm able to access the traefik dashboard in an insecure fashion

What I expect to see is SSL certs be generated for my domain special.xxx.xx. But its not happening.

The thing is I'm not able to locate any errors. So I'm not sure where to look. Can someone point me in the right direction!

granxavi · November 13, 2024, 7:21pm

Hi, I am not using the letsencrypt folder I use the acme.json directly, but I am using cloudflare. Try this and see if this works.

- /yourpath/acme.json:/acme.json

Also with go inside the container and check if your certs are in /etc/letsencrypt

docker exec -it <container_id> sh
cd /ect/letsencrypt
ls

bluepuma77 · November 13, 2024, 10:06pm

Dynamic config like http routers and services need to go into a separate dynamic config file, which needs to be loaded via providers.file in static config.

I usually prefer to declare TLS globally on entrypoint, to not repeat on every router, see simple Traefik example.

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Traefik in Docker not issuing SSL certificates

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