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buf-push-action

Note

This action has been deprecated in favor of the buf-action which combines the functionality of buf-push-action with the ability to run Buf commands in the same step. Please see the buf-action documentation for more information.

This Action enables you to push Buf modules to the Buf Schema Registry (BSR) Pushed modules are created with the Git commit SHA as the module tag.

buf-push-action is frequently used alongside other Buf Actions, such as buf-breaking-action and buf-lint-action.

Usage

Here's an example usage of buf-push-action:

on: push # Apply to all push
jobs:
  push-module:
    runs-on: ubuntu-latest
    steps:
      # Run `git checkout`
      - uses: actions/checkout@v2
      # Install the `buf` CLI
      - uses: bufbuild/buf-setup-action@v1
      # Push module to the BSR
      - uses: bufbuild/buf-push-action@v1
        with:
          buf_token: ${{ secrets.BUF_TOKEN }}
          create_visibility: private
          draft: ${{ github.ref_name != 'main'}}

With this configuration, upon a push branches, tags the buf CLI pushes the configured module to the BSR using the provided to authenticate the request. If the repository does not already exist on the BSR, create it with private visibility. When the triggering branch is not main, the commit will be pushed as a draft.

For instructions on creating a BSR API token, see our official docs. Once you've created a an API token, you need to create an encrypted Github Secret for it. In this example, the API token is set to the BUF_TOKEN secret.

Prerequisites

For buf-push-action to run, you need to install the buf CLI in the GitHub Actions Runner first. We recommend using buf-setup-action to install it (as in the example above).

Configuration

Parameter Description Required Default
buf_token The Buf authentication token used for private Buf inputs ${{github.token}}
input The path of the input you want to push to BSR as a module .
draft Indicates if the workflows should push to the BSR as a draft
create_visibility The visibility to create the BSR repository with, if it does not already exist

These parameters are derived from action.yml.

Common tasks

Run against input in sub-directory

Some repositories are structured so that their buf.yaml configuration file is defined in a sub-directory alongside their Protobuf sources, such as a proto directory. Here's an example:

$ tree
.
└── proto
    ├── acme
    │   └── weather
    │       └── v1
    │           └── weather.proto
    └── buf.yaml

In that case, you can target the proto sub-directory by setting input to proto:

steps:
  # Run `git checkout`
  - uses: actions/checkout@v2
  # Install the `buf` CLI
  - uses: bufbuild/buf-setup-action@v1
  # Push only the Input in `proto` to the BSR
  - uses: bufbuild/buf-push-action@v1
    with:
      input: proto
      buf_token: ${{ secrets.BUF_TOKEN }}

Push multiple modules

If you have multiple modules defined in your repository, you'll need to configure buf-push-action for each of the modules you want to push.

For example, suppose you have the following buf.work.yaml:

version: v1
directories:
  - petapis
  - paymentapis

If you want to push both of the modules defined in the paymentapis and petapis directories, you could adapt the workflow above like so (replacing the proto directory input with the hypothetical paymentapis and petapis directory inputs):

steps:
  # Run `git checkout`
  - uses: actions/checkout@v2
  # Install the `buf` CLI
  - uses: bufbuild/buf-setup-action@v1
  # Push only the Input in `paymentapis` to the BSR
  - uses: bufbuild/buf-push-action@v1
    with:
      input: paymentapis
      buf_token: ${{ secrets.BUF_TOKEN }}
  # Push only the Input in `petapis` to the BSR
  - uses: bufbuild/buf-push-action@v1
    with:
      input: petapis
      buf_token: ${{ secrets.BUF_TOKEN }}

Note, if any of the modules defined in your workspace depend on each other, you usually need to run buf mod update so that the downstream module uses the upstream module's latest commit. This is not supported by buf-push-action on its own - you'll need to stitch this functionality into your workflow on your own. For more details, see this discussion.

Validate before push

buf-push-action is typically used alongside other buf Actions, such as buf-breaking-action and buf-lint-action. A common use case is to "validate" a Buf module before pushing it to the BSR by ensuring that it passes both lint and breaking change checks, as in this example:

on: # Apply to all pushes to `main`
  push:
    branches:
      - main
jobs:
  validate-and-push-protos:
    runs-on: ubuntu-latest
    steps:
      # Run `git checkout`
      - uses: actions/checkout@v2
      # Install the `buf` CLI
      - uses: bufbuild/buf-setup-action@v1
      # Run a lint check on Protobuf sources
      - uses: bufbuild/buf-lint-action@v1
      # Run breaking change detection for Protobuf sources against the current `main` branch
      - uses: bufbuild/buf-breaking-action@v1
        with:
          against: https://github.com/acme/weather.git#branch=main,ref=HEAD~1,subdir=proto
      # Push the validated module to the BSR
      - uses: bufbuild/buf-push-action@v1
        with:
          buf_token: ${{ secrets.BUF_TOKEN }}