Why I get 404 status?
my docker service:
user:
image: userservice
labels:
- traefik.enable=true
- traefik.http.routers.user.rule=PathPrefix(`/proto.UserService/`)
- traefik.http.services.user.loadBalancer.server.scheme=h2c
- traefik.http.services.user.loadBalancer.server.port=10101
Hello @batazor,
Thanks for your interest Traefik!
I think the problem is that you have missed to attach the configured service to your router. The labels on your userservice should be:
user:
image: userservice
labels:
- traefik.enable=true
- traefik.http.routers.user.rule=PathPrefix(`/proto.UserService/`)
- traefik.http.routers.user.service=user
- traefik.http.services.user.loadBalancer.server.scheme=h2c
- traefik.http.services.user.loadBalancer.server.port=10101
Check out the following documentation for more details.
Hope this helps.
No, it did not solve my problem, the error remained the same.
Usually, if there is an error in finding service then traefik will return the error code 502.
It seems to me that the problem is in the connection of my service with the traefik itself. The service worked correctly with traefik 1.7.
Can you share your static configuration and the complete Traefik logs (from the beginning)?
If you have a 404 response maybe:
Yes. @kevinpollet
My traefik.toml
[global]
checkNewVersion = true
sendAnonymousUsage = true
[entryPoints]
[entryPoints.web]
address = ":80"
[entryPoints.websecure]
address = ":443"
[entryPoints.metrics]
address = ":8082"
[log]
level = "DEBUG"
format = "json"
[api]
insecure = true
dashboard = true
[ping]
[providers.file]
directory = "/conf"
watch = true
[providers.docker]
endpoint = "unix:///var/run/docker.sock"
swarmMode = true
swarmModeRefreshSeconds = 10
exposedByDefault = false
watch = true
network = "net"
[tracing]
serviceName = "traefik"
spanNameLimit = 0
[tracing.jaeger]
samplingServerURL = "http://jaeger-agent:5778/sampling"
samplingType = "const"
samplingParam = 1.0
localAgentHostPort = "jaeger-agent:6831"
traceContextHeaderName = "uber-trace-id"
[metrics]
[metrics.prometheus]
addEntryPointsLabels = true
addServicesLabels = true
entryPoint = "metrics"
my dynamic_conf.toml
[tls]
[[tls.certificates]]
certFile = "/cert/backend.cert"
keyFile = "/cert/backend.key"
stores = ["default"]
[tls.stores]
[tls.stores.default]
[tls.stores.default.defaultCertificate]
certFile = "/cert/backend.cert"
keyFile = "/cert/backend.key"
and docker-compose.yml
version: '3.7'
services:
traefik:
image: traefik:v2.3
command:
- --providers.docker.network=net
deploy:
mode: replicated
replicas: 1
placement:
constraints: [ node.role == manager ]
restart_policy:
condition: on-failure
ports:
- "443:443"
- "8060:8080"
volumes:
- /var/run/docker.sock:/var/run/docker.sock:ro
- /traefik/cert:/cert
- /traefik/traefik.toml:/traefik.toml
- /traefik/dynamic_conf.toml:/conf/dynamic_conf.toml
networks:
- net
user:
image: user:latest
deploy:
labels:
- traefik.enable=true
- traefik.docker.network=net
- traefik.http.routers.user.rule=PathPrefix(`/proto.UserService/`)
- traefik.http.services.user.loadBalancer.server.scheme=h2c
- traefik.http.routers.user.service=user
- traefik.http.services.user.loadBalancer.server.port=10101
mode: replicated
replicas: 1
networks:
- net
And traefik logs
{"entryPointName":"traefik","level":"debug","middlewareName":"dashboard_stripprefix@internal","msg":"Adding tracing to middleware","routerName":"dashboard@internal","time":"2020-12-03T18:22:15Z"}
{"entryPointName":"traefik","level":"debug","middlewareName":"dashboard_redirect@internal","middlewareType":"RedirectRegex","msg":"Creating middleware","routerName":"dashboard@internal","time":"2020-12-03T18:22:15Z"}
{"entryPointName":"traefik","level":"debug","middlewareName":"dashboard_redirect@internal","middlewareType":"RedirectRegex","msg":"Setting up redirection from ^(http:\\/\\/(\\[[\\w:.]+\\]|[\\w\\._-]+)(:\\d+)?)\\/$ to ${1}/dashboard/","routerName":"dashboard@internal","time":"2020-12-03T18:22:15Z"}
{"entryPointName":"traefik","level":"debug","middlewareName":"dashboard_redirect@internal","msg":"Adding tracing to middleware","routerName":"dashboard@internal","time":"2020-12-03T18:22:15Z"}
{"entryPointName":"traefik","level":"debug","middlewareName":"traefik-internal-recovery","middlewareType":"Recovery","msg":"Creating middleware","time":"2020-12-03T18:22:15Z"}
{"entryPointName":"metrics","level":"debug","middlewareName":"metrics-entrypoint","middlewareType":"Metrics","msg":"Creating middleware","time":"2020-12-03T18:22:15Z"}
{"entryPointName":"metrics","level":"debug","middlewareName":"tracing","middlewareType":"TracingEntryPoint","msg":"Creating middleware","time":"2020-12-03T18:22:15Z"}
{"entryPointName":"web","level":"debug","middlewareName":"metrics-entrypoint","middlewareType":"Metrics","msg":"Creating middleware","time":"2020-12-03T18:22:15Z"}
Hi @batazor
With swarm mode the labels have to be nested under the deploy key, you did this with the traefik service but not with your user service
Version - traefik.http.routers.user.service=user@docker did not change the situation.
Or is it something else?
Sorry I was looking at your original post where you had:
image: userservice
labels:
- traefik.enable=true
- traefik.http.routers.user.rule=PathPrefix(`/proto.UserService/`)
- traefik.http.services.user.loadBalancer.server.scheme=h2c
- traefik.http.services.user.loadBalancer.server.port=10101
I now see you posted an updated one later.
user:
image: user:latest
deploy:
labels:
....
So, are there any other ideas how I can find the problem?
Hi @batazor
When looking at routing issues I always ensure that the accesslog is enable(I prefer json format for verbosity).
As well as logging the request the upstream router is logged(or not) if it matches. I have had the experience of the actual backend service returning 404, but judicious use of headers in your services should make that easy to determine anyway.