Export secret file to Gitlab pipeline

1. Export file with base64 encoding

Use this command to convert file to base64 and copy result to clipboard

cat myfile.txt | base64

2. Add environment variable to Gitlab project

Copy result and insert it to Gitlab project settings
(Your project → Settings → CI/CD → Environment variables)

Setup environment variable for Gitlab project

3. Create file in pipeline

In .gitlab-ci.yml file add command to create file from environment variable.

echo $MYFILE | base64 -d > /any/path/myfile.txt

Directory where you want to save file must exist, if not you can create it with mkdir -p, -p = parents, it creates all directories.

mkdir -p /any/path && echo $MYFILE | base64 -d > /any/path/myfile.txt

The result file is absolutely same as first one in your computer, you can check it with a command sha1sum myfile.txt