cdbartholomew opened a new pull request #5420: [Issue 5415][docker build]Updating docker build for pulsar-standalone to use main dashboard sou… URL: https://github.com/apache/pulsar/pull/5420 This resolves issue #5415 but it does more than just that. It cleans up the build process for the pulsar-standalone Docker image to eliminate the need for a second copy of the dashboard files in the repo (which had already diverged significantly). I made the following changes: * Changed the docker build to use the dashboard files in the dashboard Docker image instead of a copy of those files that were in the build directory (`docker/pulsar-standalone`). That copy was very out of date with the master version (`dashboard`). The copy of the dashboard files also had a bug that was the cause of issue #5415. * I changed the build order so that the dashboard image is built before the pulsar-standalone image since the pulsar-standalone image now depends on the dashboard image. (This is pattern is used for the pulsar-all Docker image already). * I merged the changes from the dashboard copy and master. As it turns out all but one of the changes in the copy had already been made in the master, so this was a small change. However, it does mean the dashboard is now using v2 REST endpoints exclusively. Previously it was using a mixture of v1 and v2. * I updated the pulsar-standalone image to redirect all the pulsar logs to stdout, which means they can be viewed using `docker logs` (and they won't fill up the volume), which is the "docker way" to do things. The logging options for the other components (nginx, collector, etc) are inherited from the dashboard image, which got to supervisor log files but are configured to not fill up the volume. * I deleted the duplicate conf and python files for the dashboard. All the files are single-sourced from the repo dashboard path. Since Docker doesn't let you reference files outside the Dockerfile path, the files are pulled from the latest dashboard image, which I've already mentioned. I have done many builds of the Docker images with these changes. I have confirmed: * the build completes successfully by running the build.sh command. (Full disclosure: I skipped the building of Pulsar clients and adding them to the main pulsar image to speed up my testing.) * pulsar starts correctly in a pulsar-standalone container * the dashboard works in a pulsar-standalone container * the pulsar standalone logs display properly with the docker logs command on a running container
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