Note I am not asking for the docker container STDOUT, but the daemon log for troubleshooting communications between the client and container via daemon proxy.I believe the equivalent link would be here docs.docker.comenginereferencecommandlinedockerd.From github.comdockerdockerissues23339issuecomment-224275072, you can filter the containers stuff out and keep only daemon logs by using journalctl -fu docker TRANSPORTstdout OBJECTEXEdocker (works fine here).
Answering distinctly, because sabins answer might be accurate for older versions of CentOS but was not true for me. The logs for the docker daemon can be viewed using journalctl -u docker. Find the name of the active docker machine under the NAME column in the output. Making statements based on opinion; back them up with references or personal experience. Not the answer youre looking for Browse other questions tagged logging docker or ask your own question. A non-official tool tries to make it simple and easy-to-use: docker-ros-box. Keywords: ROS, Docker, GUI, Tooling Tutorial Level: INTERMEDIATE In this tutorial, we go over some of the recent methods in enabling the use of graphical user interfaces within Docker containers. This is not perhaps not one of the intended use cases for Docker, but as Docker experimentation progressed, this has become a popular method to leverage and enable portable GUI applications. The methods listed are not exhaustive, as this all still quite new and continually evolving. Please feel free to contribute by keeping this wiki update and adding additional resources. Contents. If you have an nvidia driver and need graphics acceleration you can run it with --x11 as an option to enable the X server in the container. It can also pass through your user using --user and mount your home directory using --home. A brief description and tradeoffs for each method below: The first listed is simple, but unsecure The second is safer, but non-isolated The third is isolated, but not as portable The fourth is isolated, works remotely, but is slow. This is not the safest way however, as you then compromise the access control to X server on your host. So with a little effort, someone could display something on your screen, capture user input, in addition to making it easier to exploit other vulnerabilities that might exist in X. The first is to run xhost -local:root after you are finished using the containerized GUI, this will return the access controls that were disabled with the previous command. A better option is opening up xhost only to the specific system that you want, for instance if you are running a container on the local hosts docker daemon with containers ID stored to the shell variable containerId xhost local:docker inspect --format.Config.Hostname containerId. This involves mounting additional directories and becoming yourself in the container: docker run -it --rm. Stackapi Displays Unknown Under Docker Password And FileThis allows you access to local config file for your local user, maintaining the same username, password and file permissions. So by means of convenience and security, one can lose some aspects of isolation, and other useful properties of repeatability, reducibility, and portability if not careful. We can do this with some modifications to the original image by creating a user with uid and gid matching that of the host user. This is an example of what you may need to add to the docker file, or simalurly run and commit in the container: Add new sudo user. The next step is to make a X authentication file with proper permissions and mount this to a volume for the container to use. Here is an example of a run command doing just this: XSOCKtmp.X11-unix. The drawback of all this with is that some user specific configuration now resides the image itself, and thereby making it less portable. Should a different user, even on the same host machine, wish to use the same image, they will need to: start an interactive terminal session with the container, change the uid and gid to match their own, commit the container to a new image, and launch the desired GUI container from that one instead. Doing this back and forth also adds needless layers to your image, so introspecting the changins in an image would become a noisy affair. There are clever ways to get around this, such as making a new user with the same uid and gid at runtime. Stackapi Displays Unknown Under Docker Plus Remaining JustThis take a bit more entrypoint scripting and machinery, but can provide a more portable solution plus remaining just as isolated.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |