ed24100976
The `aio_monitoring_stable` CI job needs to check out (and execute commands on) some files from the stable branch. Therefore, it needs to use a version of `yarn` that is compatible with the `engines` version specified in `aio/package.json`. In #34902 (and subsequently #34952 for the 8.2.x branch), the way to access our vendored version of yarn changed. This commit ensures that we checkout the necessary files from the stable branch to use an appropriate yarn version. PR Close #34954
Encryption
Based on https://github.com/circleci/encrypted-files
In the CircleCI web UI, we have a secret variable called KEY
https://circleci.com/gh/angular/angular/edit#env-vars
which is only exposed to non-fork builds
(see "Pass secrets to builds from forked pull requests" under
https://circleci.com/gh/angular/angular/edit#advanced-settings)
We use this as a symmetric AES encryption key to encrypt tokens like a GitHub token that enables publishing snapshots.
To create the github_token file, we take this approach:
- Find the angular-builds:token in http://valentine
- Go inside the CircleCI default docker image so you use the same version of openssl as we will at runtime:
docker run --rm -it circleci/node:10.12 - echo "https://[token]:@github.com" > credentials
- openssl aes-256-cbc -e -in credentials -out .circleci/github_token -k $KEY
- If needed, base64-encode the result so you can copy-paste it out of docker:
base64 github_token