ocket8888 opened a new pull request #3991: Fixed pip not working in CiaB URL: https://github.com/apache/trafficcontrol/pull/3991 ## What does this PR (Pull Request) do? - [x] This PR is not related to any Issue This PR fixes an issue where `pip` was crashing when building CDN-in-a-Box images. The problem is that CentOS does not provide a way to install the modern `pip` needed by some dependencies, but `pip install --upgrade pip` generally breaks the `pip` install. The solution is to skip running the setuptools-provided entrypoint and directly call the package using `python3 -m pip`. ## Which Traffic Control components are affected by this PR? - CDN in a Box ## What is the best way to verify this PR? Destroy your Docker cache, then confirm that the `mid` and `edge` services can be built. Note that at the time of this writing, the ATS CI server is experiencing problems, so testing may be difficult. ## If this is a bug fix, what versions of Traffic Control are affected? - master ## The following criteria are ALL met by this PR - [x] This PR includes tests OR I have explained why tests are unnecessary - [x] This PR includes documentation OR I have explained why documentation is unnecessary - [x] This PR includes an update to CHANGELOG.md OR such an update is not necessary - [x] This PR includes any and all required license headers - [x] This PR ensures that database migration sequence is correct OR this PR does not include a database migration - [x] This PR **DOES NOT FIX A SERIOUS SECURITY VULNERABILITY** (see [the Apache Software Foundation's security guidelines](https://www.apache.org/security/) for details) <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -->
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