Add the oak build config back to use in the README

README.md

@@ -25,17 +25,17 @@ in the [`common`](/internal/common/) package.
 
 The [`cmd/builder`](/cmd/builder/) command line tool described above can be used for building the binaries, and at the same time for generating a corresponding provenance file. To use this tool, the developers need to provide a toml file similar to the one in [`testdata/build.toml`](/testdata/build.toml). See the definition of `BuildConfig` in package [`common`](/internal/common/) for thedescription of each field.
 
-To build a binary from the Git repository specified in [`testdata/build.toml`](../testdata/build.toml) and generate its provenance file, run either:
+To build a binary from the Git repository specified in [`testdata/oak_build.toml`](../testdata/oak_build.toml) and generate its provenance file, run either:
 
 ```bash
 $ bazel run  //cmd/builder:main -- \
-  -build_config_path <absolute-path-to-transparent-release-repo>/testdata/build.toml \
+  -build_config_path <absolute-path-to-transparent-release-repo>/testdata/oak_build.toml \
 ```
 
 or, alternatively:
 
 ```bash
-$ go run cmd/builder/main.go -build_config_path testdata/build.toml
+$ go run cmd/builder/main.go -build_config_path testdata/oak_build.toml
 ```
 
 You should see the following output on the console:
@@ -51,7 +51,7 @@ To build from a local repository you can specify `-git_root_dir`. In this case,
 
 ```bash
 $ bazel run  //cmd/builder:main -- \
-  -build_config_path <absolute-path-to-transparent-release>/testdata/build.toml \
+  -build_config_path <absolute-path-to-transparent-release>/testdata/oak_build.toml \
   -git_root_dir <path-to-git-repo-root>
 ```
 

testdata/oak_build.toml

@@ -0,0 +1,5 @@
+repo = "https://github.com/project-oak/oak"
+commit_hash = "d11e3de97b8fc1cf49e4ed8001d14d77b98c24b8"
+builder_image = "gcr.io/oak-ci/oak@sha256:6e5beabe4ace0e3aaa01ce497f5f1ef30fed7c18c596f35621751176b1ab583d"
+command = ["./scripts/xtask", "build-oak-functions-server-variants"]
+output_path = "./target/x86_64-unknown-linux-musl/release/oak_functions_loader_base"