This introduces a Dockerfile for the Pulumi CLI. This makes it easier to develop and test the engine in a self-contained environment, in addition to being suitable for running the actual CLI itself. For instance, $ docker run pulumi/pulumi -e "PULUMI_ACCESS_TOKEN=x" up will run the Pulumi program mounted under the /app volume. This will be used in some upcoming CI/CD scenarios. This uses multi-stage builds, and Debian Stretch as the base, for relatively fast and lean build times and resulting images. We are intentional about restoring dep packages independent of the actual source code so that we don't end up needlessly re-depping, which can consume quite a bit of time. After fixing https://github.com/pulumi/pulumi/issues/1986, we should explore an Alpine base image option. I made the decision to keep this image scoped to just the Go builds. Therefore, none of the actual SDK packages themselves are built, just the engine, CLI, and language plugins for Node.js, Python, and Go. It's possible to create a mega-container that has all of these full environments so that we can rebuild them too, but for now I figured it was better to rely on package management for them. Another alternative would have been to install released binaries, rather than building them. To keep the useful flow for development, however, I decided to go the build route for now. If we build at the same hashes, the resulting binaries "should" be ~identical anyhow. I've created a pulumi/pulumi Docker Hub repo that we can publish this into. For now, there is no CI publishing of the image. This fixes pulumi/pulumi#1991.
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4 lines
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examples/**/*
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sdk/nodejs/bin/
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sdk/nodejs/node_modules/
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vendor/
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