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Redeploy script: put each build in a separate directory (#2790)
* Redeploy script: put each build in a separate directory Hopefully this will fix the problem whereby we can overwrite the live deployment.
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@ -107,21 +107,40 @@ def on_receive_jenkins_poke():
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)
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print("Retrieving .tar.gz file: %s" % tar_gz_url)
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# we rely on the fact that flask only serves one request at a time to
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# ensure that we do not overwrite a tarball from a concurrent request.
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filename = download_file(tar_gz_url)
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print("Downloaded file: %s" % filename)
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try:
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# we extract into a directory based on the build number. This avoids the
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# problem of multiple builds building the same git version and thus having
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# the same tarball name. That would lead to two potential problems:
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# (a) sometimes jenkins serves corrupted artifacts; we would replace
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# a good deploy with a bad one
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# (b) we'll be overwriting the live deployment, which means people might
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# see half-written files.
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build_dir = os.path.join(arg_extract_path, "%s-#%s" % (job_name, build_num))
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if os.path.exists(build_dir):
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abort(400, "Not deploying. We have previously deployed this build.")
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return
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os.mkdir(build_dir)
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untar_to(filename, build_dir)
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print("Extracted to: %s" % build_dir)
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finally:
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if arg_should_clean:
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os.remove(filename)
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name_str = filename.replace(".tar.gz", "")
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untar_to(filename, arg_extract_path)
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extracted_dir = os.path.join(arg_extract_path, name_str)
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if arg_should_clean:
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os.remove(filename)
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create_symlink(source=extracted_dir, linkname=arg_symlink)
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extracted_dir = os.path.join(build_dir, name_str)
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if arg_config_location:
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create_symlink(source=arg_config_location, linkname=os.path.join(extracted_dir, 'config.json'))
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create_symlink(source=extracted_dir, linkname=arg_symlink)
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return jsonify({})
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if __name__ == "__main__":
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