a docker container needs to connect to multiple remote DB's via tunnel), several valid techniques exist but an easy and straightforward way is to simply create multiple tunnels listening to traffic arriving at different docker0 bridge ports. When dealing with multiple outgoing connections (e.g. Now traffic being routed through your docker0 bridge will also reach your ssh tunnel :)įor example, if you have a "DOT.NET Core" application that needs to connect to a remote db located at :9000, your "ConnectionString" would contain "server=172.17.0.1,9000. In your containerized application use the same docker0 ip to connect to the server: 172.17.0.1:9000. Side note: You could also bind your tunnel to 0.0.0.0, which will make ssh listen to all interfaces. Without setting the bind_address, :9000 would only be available to your host's loopback interface and not per se to your docker containers. Now you need to tell ssh to bind to this ip to listen for traffic directed towards port 9000 via ssh -L 172.17.0.1:9000:host-ip:9999 You will see something like this: docker0 Link encap:Ethernet HWaddr 03:41:4a:26:b7:31 by binding ssh to the docker0 bridge) instead of exposing your docker containers in your host environment (as suggested in the accepted answer).įor this to work, retrieve the ip your docker0 bridge is using via: ifconfig In your case, a quick and cleaner solution would be to make your ssh tunnel "available" to your docker containers (e.g. Using your hosts network as network for your containers via -net=host or in docker-compose via network_mode: host is one option but this has the unwanted side effect that (a) you now expose the container ports in your host system and (b) that you cannot connect to those containers anymore that are not mapped to your host network. I also tried mapping the ports via docker run -p 9999:9000, but this reports that the bind failed because the host port is already in use (from the host tunnel to the remote machine, presumably).ġ - How will I achieve the connection? Do I need to setup an ssh tunnel to the host, or can this be achieved with the docker port mapping alone?Ģ - What's a quick way to test that the connection is up? Via bash, preferably. 2 but there was no perceived communication, even when doing To check wether the port mapping was on, I triedįollowing this, parag. I tried tunneling from the container to the host with -L 9000:host-ip:9999, then accessing the service through 127.0.0.1:9000 from within the container fails to connect. I need to access that remote service via the host's tunnel, from within the container. If you use an IDE for software development, you will soon be able to install a Looker SDK for your programming language with the click of a button! While API 3.1 is still the defacto Looker API (\"current\", \"stable\", \"default\", etc), the bulk of our development activity will gradually shift to API 4.0.Using ubuntu tusty, there is a service running on a remote machine, that I can access via port forwarding through an ssh tunnel from localhost:9999. These client SDKs will be available as pre-built packages for download from public repositories such as, ,. Looker is also creating client SDKs to call the Looker API from these and other languages. One benefit of these type adjustments in API 4.0 is dramatically better support for strongly typed languages like TypeScript, Kotlin, Java, and more. These changes fall outside the bounds of non-breaking additive changes we can make to our stable API 3.1. Please pardon our dust while we remodel a few rooms! # In This Release We're spinning up this new API 4.0 version so that we can make adjustments to our API functions, parameters, and response types to fix bugs and inconsistencies. We've tagged 4.0 as \"experimental\" to reflect that we have more work planned for API 4.0 which may include breaking changes. * Welcome to the future! This is an early preview of our next-generation Looker API 4.0. * Looker API 4.0 (Experimental) Reference
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |