src: dump logs on build failure and experiment with LLB

useblacksmith · Nov 26, 2024 · 8233c57 · 8233c57
1 parent bdd6696
commit 8233c57
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Showing 3 changed files with 16 additions and 2 deletions.
diff --git a/dist/index.js b/dist/index.js
diff --git a/dist/index.js.map b/dist/index.js.map
diff --git a/src/main.ts b/src/main.ts
@@ -418,6 +418,11 @@ async function getBuilderAddr(inputs: context.Inputs, dockerfilePath: string): P
     core.debug('Successfully obtained sticky disk, proceeding to start buildkitd');
 
     // Start buildkitd.
+    // Create a directory for LLB dumps
+    const llbDumpDir = '/tmp/buildkit-llb-dumps';
+    await execAsync(`mkdir -p ${llbDumpDir}`);
+    process.env.BUILDKIT_DEBUG_DUMPLLB = '1';
+    process.env.BUILDKIT_DUMP_LLB_DIR = llbDumpDir;
     const parallelism = await getNumCPUs();
     const buildkitdAddr = await startBuildkitd(parallelism);
     core.debug(`buildkitd daemon started at addr ${buildkitdAddr}`);
@@ -746,6 +751,15 @@ actionsToolkit.run(
     }
     if (stateHelper.dockerBuildStatus != '') {
       try {
+        if (stateHelper.dockerBuildStatus !== 'success' && stateHelper.buildRef) {
+          try {
+            const {stdout} = await execAsync(`sudo buildctl debug logs --ref ${stateHelper.buildRef}`);
+            core.info('Build logs from buildctl:');
+            core.info(stdout);
+          } catch (error) {
+            core.warning(`Failed to get buildctl logs: ${error.message}`);
+          }
+        }
         await shutdownBuildkitd();
         for (let attempt = 1; attempt <= 3; attempt++) {
           try {