Running appstart_devappserver_base docker image fails

[johnmartel]

After running appstart init, running appstart run ./app.yaml fails at the step of starting the dev_appserver container because somehow, the python dev_appserver.py step of appstart/devappserver_init/das.sh still needs the app-engine-python component.

From what I can tell, this is due to path mismatches in both the Dockerfile and das.sh. Locally, I simply made sure the paths were the same everywhere and hardcoded the path to dev_appserver.py since the find | head -1 was returning a bogus entry from .install/.backup.

Here's the diff to my solution:

diff --git a/appstart/devappserver_init/Dockerfile b/appstart/devappserver_init/Dockerfile
index d791796..e94aec2 100644
--- a/appstart/devappserver_init/Dockerfile
+++ b/appstart/devappserver_init/Dockerfile
@@ -17,7 +17,8 @@ FROM debian
 RUN apt-get update
 RUN apt-get install -y python curl python-pip
 RUN curl https://dl.google.com/dl/cloudsdk/release/install_google_cloud_sdk.bash > install.sh
-RUN bash ./install.sh --disable-prompts --install-dir ./sdk
-RUN SDK_ROOT=$(echo /sdk/$(ls sdk/)); $(echo $SDK_ROOT/bin/gcloud components update --quiet preview app app-engine-python app-engine-php app-engine-java)
+RUN mkdir -p /sdk
+RUN bash ./install.sh --disable-prompts --install-dir /sdk
+RUN /sdk/google-cloud-sdk/bin/gcloud components update --quiet preview app app-engine-python app-engine-php app-engine-java
 ADD ./das.sh /
 ENTRYPOINT /das.sh
diff --git a/appstart/devappserver_init/das.sh b/appstart/devappserver_init/das.sh
index d90fe41..7270463 100755
--- a/appstart/devappserver_init/das.sh
+++ b/appstart/devappserver_init/das.sh
@@ -1,6 +1,7 @@
-SDK_ROOT=/sdk/$(ls /sdk/)
+SDK_ROOT=/sdk/google-cloud-sdk
 export PYTHONPATH=$SDK_ROOT/lib/
-python $(find $SDK_ROOT -name dev_appserver.py | head -1) \
+
+python /sdk/google-cloud-sdk/bin/dev_appserver.py \
     --allow_skipped_files=False \
     --api_host=0.0.0.0 \
     --api_port=$API_PORT \

[mindhog]

I can't reproduce this - can you provide a minimal app that demonstrates the failure?

[shaundubuque]

I am seeing this same problem intermittently when running appstart with a very simple webapp2 app. With a more complex app, I see this error on nearly all attempted runs.

[mindhog]

@shaundubuque - Does @johnmartel 's patch fix it for you?