Using Docker in deployment

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In my current workplace, we use Docker in the following way: When a developer wants to push a new version to some production or integration environment, they run some in-house tool. The tool uses a dockerfile to create an image (usually `FORM ruby`, but not always), copies over the gemfile + lockfile, runs inside `bundle install` and then copies the project source folders. The tool also creates a tarball of the srouce folders. it then pushes the image to our registry, and uploads the tarball to some storage. In the prod/integration env, when our in-house orchestrator (running in EC2) decides it needs to start one of our services, it pulls both the image and the tarball, extracts the tarball locally, and runs a container from the image, while volume-mapping all the sources from its own host, into the container. If this same host needs to run the same service more than once – both containers will have volumes mounted from the same folder in the host. Does this usage of Docker make sense? Is it a known practice for some reason? Do you see any glaring pros or cons for this approach? submitted by /u/ATGardner [link] [comments]

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Patricia

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