fix: export Google GHA creds env var (#57)

* fix: export Google GHA creds env var * add comments for cred envvars * build
google-github-actions · Nov 26, 2021 · 9a051ab · 9a051ab
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commit 9a051ab
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diff --git a/dist/index.js b/dist/index.js
@@ -240,8 +240,14 @@ function run() {
                 }
                 const credentialsPath = yield client.createCredentialsFile(runnerTempDir);
                 (0, core_1.setOutput)('credentials_file_path', credentialsPath);
+                // CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE is picked up by gcloud to use
+                // a specific credential file (subject to change and equivalent to auth/credential_file_override)
                 (0, core_1.exportVariable)('CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE', credentialsPath);
+                // GOOGLE_APPLICATION_CREDENTIALS is used by Application Default Credentials
+                // in all GCP client libraries
                 (0, core_1.exportVariable)('GOOGLE_APPLICATION_CREDENTIALS', credentialsPath);
+                // GOOGLE_GHA_CREDS_PATH is used by other Google GitHub Actions
+                (0, core_1.exportVariable)('GOOGLE_GHA_CREDS_PATH', credentialsPath);
             }
             // Set the project ID environment variables to the computed values.
             const computedProjectID = yield client.getProjectID();

diff --git a/src/main.ts b/src/main.ts
@@ -88,8 +88,14 @@ async function run(): Promise<void> {
 
       const credentialsPath = await client.createCredentialsFile(runnerTempDir);
       setOutput('credentials_file_path', credentialsPath);
+      // CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE is picked up by gcloud to use
+      // a specific credential file (subject to change and equivalent to auth/credential_file_override)
       exportVariable('CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE', credentialsPath);
+      // GOOGLE_APPLICATION_CREDENTIALS is used by Application Default Credentials
+      // in all GCP client libraries
       exportVariable('GOOGLE_APPLICATION_CREDENTIALS', credentialsPath);
+      // GOOGLE_GHA_CREDS_PATH is used by other Google GitHub Actions
+      exportVariable('GOOGLE_GHA_CREDS_PATH', credentialsPath);
     }
 
     // Set the project ID environment variables to the computed values.