Traefik Docker Swarm Basic Authentication - docker

Question

I recently set up Traefik v.1.7.14 in a Docker container, on a Docker Swarm enabled cluster. As a test, I created a simple service:
docker service create --name demo-nginx \
--network traefik-net \
--label traefik.app.port=80 \
--label traefik.app.frontend.auth.basic="test:$$apr1$$LG8ly.Y1$$1J9m2sDXimLGaCSlO8.T20" \
--label traefik.app.frontend.rule="Host:t.myurl.com" \
nginx
As the code above states, I am simply installing nginx on my url, at the subdomain t specified.
When this code runs, the service gets created successfully. Traefik also shows the service in the traefik api, as well as within the traefik administrator.
In the traefik api, the back-end service is reported as follows:
"frontend-Host-t-myurl-com-0": {
"entryPoints": [
"http",
"https"
],
"backend": "backend-demo-nginx",
"routes": {
"route-frontend-Host-t-myurl-com-0": {
"rule": "Host:t.myurl.com"
}
},
"passHostHeader": true,
"priority": 0,
"basicAuth": null,
"auth": {
"basic": {}
}
When I go to visit t.myurl.com, I get the authentication prompt, as expected.
However, when I type in my username/password (test:test, in this case), the login prompt just prompts me again and doesn't authenticate me.
I have checked to ensure that I am escaping the characters in the docker label by using:
echo $(htpasswd -nb test test) | sed -e s/\\$/\\$\\$/g
To generate the password.
As part of my testing, I also tried turning off the https entryPoint, as I wanted to see if this cycle was somehow being triggered by ssl. That didn't seem to have any impact on resolving this (rule: --label traefik.app.frontend.entryPoints=http). Traefik did properly respond on http upon doing this, but the password authentication still fell into the same prompting loop as before.
When I remove the traefik.app.frontend.auth.basic label, I can access my site at my url (t.myurl.com). So this issue appears to be isolated within the basic authentication functionality.
My DNS provider is Cloudflare.
If anyone has any ideas, I'd appreciate it.

Answer 1

Maybe you can try this:
echo $(htpasswd -nb your-user your-password);
Because you don't need two $$ in the command line.