Question 189508 in Docker Question posted in
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Docker – ssh tunnel to container inside remote host

I am running Nifi (A GUI based application) inside Docker container.
it was deployed using docker compose

compose:

    nifi:
        hostname: DWH_Nifi_prod
        container_name: nifi_container_persistent
        image: 'apache/nifi:1.19.0'  # latest image as of 2023-June.
        restart: on-failure
        user: root
        ports:
            - '8091:8080'

It is up and running.

Now as i want to open the UI, i need to open a ssh tunnel to it.

Earlier when i ran the application on the remote host (not on docker) I could easily establish the Tunnel using

ssh -L 8091:127.0.0.1:8091 root@remote_host.prod

Now i tried something similar

ssh -L 8080:127.0.0.1:8080 root@remote_host.prod

but could not succeed (error when opening UI : localhost sent an invalid response.)

Can someone please help me if there is anything extra to be taken care to establish a ssh tunnel for Remote hosts docker container ?

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2

Answers


  1. Chosen as BEST ANSWER
    0

    As I observed there is no difference in establishing ssh tunnel to container. its same as establishing to host machine.

    ssh -L 8091:127.0.0.1:8091 root@remote_host.prod worked.

    Earlier I could not access the page as my url is using https://, but i should use http:// only.


  2. 0

    SSH server is started on 22 port by default, so you I would try to expose it from docker container outside to the host machine, also you need to know the internal container’s IP address to route the connection to. More details here.

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