Use the uploaded app source tarball to build a local docker image

src/docker.js

@@ -5,6 +5,7 @@ exports = module.exports = {
 
     info,
     df,
+    buildImage,
     downloadImage,
     createContainer,
     startContainer,
@@ -159,6 +160,52 @@ async function pullImage(imageRef) {
     });
 }
 
+async function buildImage(manifest) {
+    assert.strictEqual(typeof manifest, 'object');
+
+    const sourceArchivePath = manifest.dockerImage.slice('file:'.length);
+    const imageTag = `local/${manifest.id}:${manifest.version}`;
+
+    debug(`buildImage: building ${imageTag} from ${sourceArchivePath}`);
+
+    const tarStream = fs.createReadStream(sourceArchivePath);
+    const [error, stream] = await safe(gConnection.buildImage(tarStream, { t: imageTag }));
+    if (error) throw new BoxError(BoxError.DOCKER_ERROR, `Unable to build image from ${sourceArchivePath}: ${error.message}`);
+
+    return new Promise((resolve, reject) => {
+        let buildError = null;
+
+        stream.on('data', (chunk) => {
+            const data = safe.JSON.parse(chunk) || {};
+
+            if (data.error) {
+                buildError = data.errorDetail || { message: data.error };
+            } else {
+                const message = (data.stream || data.status || data.aux?.ID || '').replace(/\n$/, '');
+                if (message) debug('buildImage: ' + message);
+            }
+        });
+
+        stream.on('end', () => {
+            if (buildError) {
+                debug(`buildImage: error ${buildError}`);
+                return reject(new BoxError(buildError.message.includes('no space') ? BoxError.FS_ERROR : BoxError.DOCKER_ERROR, buildError.message));
+            } else {
+                debug(`buildImage: success ${imageTag}`);
+            }
+
+            // TODO we should probably use that scheme directly instead of file:....
+            manifest.dockerImage = imageTag;
+            resolve();
+        });
+
+        stream.on('error', (error) => {
+            debug(`buildImage: error building image ${imageTag}: %o`, error);
+            reject(new BoxError(BoxError.DOCKER_ERROR, error.message));
+        });
+    });
+}
+
 async function downloadImage(manifest) {
     assert.strictEqual(typeof manifest, 'object');