The TLS connection was non-properly terminated

[martynbiz]

I've remote into my server that hosts Collabora server, pulled the image, run the container and trying to get a proper response directly from the container and exclude the reverse proxy for now. I also, for testing purposes, run another simple container just to demonstrate that Docker is running something at least.

    $ sudo docker pull collabora/code
    Using default tag: latest
    latest: Pulling from collabora/code
    Digest: sha256:2f5bad8918259...2003a6e0a475430
    Status: Image is up to date for collabora/code:latest

    $ docker run -t -d -p 127.0.0.1:9980:9980 -e 'domain=nextcloud\\.mydomain\\.com' --restart always --cap-add MKNOD collabora/code
    be484fbc600437e23e3a876eddc52d27b8600e811b3b99579d07be248c0210d4

    $ docker ps -a
    CONTAINER ID        IMAGE                  COMMAND                   CREATED             STATUS              PORTS                      NAMES
    be484fbc6004        collabora/code         "/bin/sh -c 'bash st…"    8 seconds ago       Up 7 seconds        127.0.0.1:9980->9980/tcp   festive_hypatia
    79bbe8aadc69        crccheck/hello-world   "/bin/sh -c 'trap \"e…"   About an hour ago   Up About an hour    0.0.0.0:32768->8000/tcp    web-test

    $ curl https://127.0.0.1:9980/hosting/discovery -v
    *   Trying 127.0.0.1...
    * Connected to 127.0.0.1 (127.0.0.1) port 9980 (#0)
    * found 148 certificates in /etc/ssl/certs/ca-certificates.crt
    * found 599 certificates in /etc/ssl/certs
    * ALPN, offering http/1.1
    * gnutls_handshake() failed: The TLS connection was non-properly terminated.
    * Closing connection 0
    curl: (35) gnutls_handshake() failed: The TLS connection was non-properly terminated.

    $ curl http://0.0.0.0:32768
    <xmp>
    Hello World

                                           ##         .
                                     ## ## ##        ==
                                  ## ## ## ## ##    ===
                               /""""""""""""""""\___/ ===
                          ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ /  ===- ~~~
                               \______ o          _,/
                                \      \       _,'
                                 `'--.._\..--''
    </xmp>

    $ curl https://0.0.0.0:32768
    curl: (35) gnutls_handshake() failed: An unexpected TLS packet was received.

The last two are the simple containers just for testing. The last one was just to see that a different message was shown when I know for sure SSL is not available.

How do I debug the collabora/code container? Can I, for example, SSH into this container? Is it an issue with it's SSL keys? I didn't set these up and assuming that this is part of the image(?)

[martynbiz]

By the way, my docker version is docker-ce

$ docker -v
Docker version 18.09.1, build 4c52b90

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.5 LTS
Release:    16.04
Codename:   xenial

[hkiiita]

ANy updates on this ? am also getting same issue ..... moreover i also have a linked issue whereing am not able to apt update from "https" repositories like https://packages.microsoft.com/ubuntu/19.04/prod too ....maybe something is common between these two...