GitHub action to upload files to multiple Azure storage accounts.

The action will upload all files (the .github folder and other files at the root folder are excluded) in the repository which have changed between the most recent commit and the previous commit on the default branch. Files for different storage account folders are uploaded to different Azure storage accounts. It expects and only works with the following folder structure (folder names can be arbitrary, and file extensions do not matter). The folder structure here as been made to illustrate the link between the repo structure and the Azure storage account setup:

├── .github
├── storageaccount1
│   ├── container1
│   │   ├── file1.json
│   ├── container2
│   │   ├── file1.yaml
│   │   ├── file2.json
├── storageaccount2
│   ├── container1
│   │   ├── file1.yml

The GitHub action connects to Azure storage accounts by using connection strings provided as environment variables. The environment variables must follow this naming convention:

STORAGEACCOUNT_STORAGE_ACCOUNT_CONNECTION_STRING

where STORAGEACCOUNT corresponds to the folder name in the repository. The action will match the folder names in the repository with the prefix used in the environment variables for the storage account connection string. The action creates one container per folder and will name that container like this:

STORAGEACCOUNT-CONTAINER

and each container will hold all files for that folder.

The action will assess changes only on the default branch (currently supported: master and main). The action should therefore only be run on commits to master, but not on other events, like e.g. pull requests. Changes are assessed by comparing commit SHAs and the action needs certain inputs to evaluate changed files. See Inputs section.

The action does not need any inputs to the GitHub action, but the following environment variables need to be set:

The sample workflow is based on the sample folder structure given above (2 storage account folders -> 2 environment variables for Azure storage accounts). Also note the values that are set for REPO_NAME, BRANCH_REF, AFTER_COMMIT_SHA, and BEFORE_COMMIT_SHA, these should be set exactly like below.

name: Upload files

env:
  BRANCH_REF: ${{ github.event.ref }}
  REPO_NAME: ${{ github.event.repository.full_name }}
  BEFORE_COMMIT_SHA: ${{ github.event.before }}
  AFTER_COMMIT_SHA: ${{ github.event.after }}
  # make sure to set the the variables below as secrets or provide them in another secure way
  REPOSITORY_ACCESS_TOKEN: ${{ secrets.REPOSITORY_ACCESS_TOKEN }}
  STORAGEACCOUNT1_STORAGE_ACCOUNT_CONNECTION_STRING: ${{ secrets.STORAGEACCOUNT1_STORAGE_ACCOUNT_CONNECTION_STRING }}
  STORAGEACCOUNT2_STORAGE_ACCOUNT_CONNECTION_STRING: ${{ secrets.STORAGEACCOUNT2_STORAGE_ACCOUNT_CONNECTION_STRING }}


# Action runs on every commit to main (when a PR is merged), but does not need to run on opening/updating pull request
on:
  push:
    branches: [ main ]

jobs:
  validate-json:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 2

    - name: Upload files
      uses: RaaLabs/[email protected]