Template import error

@linssab I am not well versed with the docker aspect of this however I see this:

GET http://localhost:8443/nifi-api/flow/current-user

That is going to http

I feel the reason this is happening is because you have this in your yaml file:

ports:
            - '8443:8080'
        cpus : 2
        mem_limit: 2G
        mem_reservation: 2G
        environment:
            - NIFI_WEB_HTTP_PORT=8080

That to me tells me that anything going in on 8443 route it to 8080 and 8080 is set on nifi.properties as the value for nifi.web.http.port= because you are passing in through your yaml file:

NIFI_WEB_HTTP_PORT=8080

I recommend that you change 

ports:
            - '8443:8080'

to

ports:
           - '8443:8443'


AND

environment:
            - NIFI_WEB_HTTP_PORT=8080

to

environment:
            - NIFI_WEB_HTTPS_PORT=8443

notice the "S" in HTTP<S>

Then NiFi should start up securely and you will get a login page where you can pass it the values you set for:

- SINGLE_USER_CREDENTIALS_USERNAME=
- SINGLE_USER_CREDENTIALS_PASSWORD=