no date tag included in docker ps output
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anton.kratz ▴ 60
@antonkratz-8836
Last seen 11 weeks ago
United States, San Diego, UCSD

I want to determine which "Date tag" a running instance of docker-R/Bioconductor has. I started the instance without supplying a date tag and now want to figure out which data tag it has (to make my analysis more reproducible).

I am following the example from "Docker and Bioconductor", section 7.2 Reproducibility (http://bioconductor.org/help/course-materials/2015/BioC2015/docker_and_bioconductor.html#reproducibility):

docker run -ti --rm bioconductor/devel_base


and then I type in a different bash instance:

docker ps

As output I get:

CONTAINER ID        IMAGE                     COMMAND                  CREATED             STATUS              PORTS               NAMES
438916e74438        bioconductor/devel_base   "/usr/bin/supervisord"   9 seconds ago       Up 8 seconds        8787/tcp            cocky_visvesvaraya

Unlike in the tutorial example, there is simply no date tag included! How can I figure out the date tag in this situation?

docker reproducibility • 1.0k views
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If you start the container with a specific tag, that tag will show up in docker ps:

docker run -ti --rm bioconductor/devel_base:20150923

Output of docker ps:

CONTAINER ID        IMAGE                              COMMAND                CREATED             STATUS              PORTS                    NAMES

807278b92688        bioconductor/devel_base:20150923   "/usr/bin/supervisor   7 seconds ago       Up 5 seconds        0.0.0.0:8787->8787/tcp   happy_ptolemy 
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Hi Dan, yes, thanks, I am aware of that. However according to your own tutorial the behavior should be different, as you write: "If you didn’t start the image with a specific tag, you can determine the tag of a running container with the docker ps command, for example [...]" (and then the steps which I followed, please see above). But apparently, this does not work. I followed the steps exactly like in the tutorial and I cannot get the information what the tag of the running instance is.

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Then the tutorial is wrong (I'll fix it) and you should specify the date tag when starting the container.

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Okay I understand, thanks for the clarification!

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