Unexpected error running build task: Internal Error - runner failed with exit code: 2

#1

I have built the following Docker image for CircleCI (naftulikay/circleci-lambda-rust). It is based on a different container I made which does work successfully: natulikay/circleci-amazonlinux-rust]

Since there are hardly any differences between the two Docker image, and in absence of any detailed logs, I can’t correct the issue.

(CircleCI Team: an example build can be found here, in a private repository for my account.)

How can I debug this to know what is failing and why?

Unexpected preparation error: Internal Error - runner failed with exit code: 126
#2

In summary:

All I get in reply is:

Unexpected error running build task: Internal Error - runner failed with exit code: 2

Therefore I can’t see anything. Also, the setup task completes successfully, so the container image is being downloaded successfully. I have tested it locally as well and it works just as I’d expect it to.

#3

Bump. Still getting this issue after confirming that my ENTRYPOINT is always valid and executed successfully.

#4

In lack of any support, I have simply used machine: true to run my jobs on VMs and then simply run the same Docker image via my Makefile.

In order for file permissions to work properly, I had to write a script that runs in the container on init which moves UIDs and GIDs for the circleci user in the container to match the host: https://github.com/naftulikay/docker-circleci-lambda-rust/blob/master/bin/id-remap

In some strange twist of fate, usermod and groupmod together take a whopping 30 seconds in the container while find $HOME -exec chown -R $USER:$USER {} \; takes only a few seconds.

My effective CircleCI 2 configuration:

---
version: 2

jobs:
  build:
    machine: true
    steps:
      - checkout

      - restore_cache:
          keys:
            - v1-project-cache-{{ .Branch }}-{{ .Revision }}
            - v1-project-cache-{{ .Branch }}

      - run:
          name: PULL!
          command: make pull

      - run:
          name: Test
          command: make test

      - run:
          name: Build
          command: make build

      - save_cache:
          key: v1-project-cache-{{ .Branch }}-{{ .Revision }}
          paths:
            - "~/.cargo"
            - "~/.cache/cargo"
            - "./target"

      - save_cache:
          key: v1-project-cache-{{ .Branch }}
          paths:
            - "~/.cargo"
            - "~/.cache/cargo"
            - "./target"

  deploy:
    machine: true
    steps:
      - restore_cache:
          keys:
            - v1-project-cache-{{ .Branch }}-{{ .Revision }}
            - v1-project-cache-{{ .Branch }}

      - run:
          name: Deploy
          command: make deploy

workflows:
  version: 2
  release:
    jobs:
      - build
      - deploy:
          requires: [build]
          filters:
            branches:
              only: master

And my Makefile:

#!/usr/bin/make -f

LAMBDA_FUNCTION_NAME:=api-naftuli-wtf
REST_API_ID:=smddwihyy9
STAGE:=production
CACHE_DIR:=$(HOME)/.cache/cargo
ZIP_FILE:=$(CACHE_DIR)/target/deploy/lambda.zip
DOCKER_IMAGE:=naftulikay/circleci-lambda-rust:latest

WORKDIR:=$(shell pwd)

USER_UID:=$(shell id -u)
USER_GID:=$(shell id -g)

IS_TTY:=$(shell test -t && echo '-t')

DOCKER_INVOKE:=docker run -i $(IS_TTY) --rm \
	-e USER_UID=$(USER_UID) \
	-e USER_GID=$(USER_GID) \
	-v $(WORKDIR):/home/circleci/project \
	-v $(CACHE_DIR)/cargo/registry:/home/circleci/.cargo/registry \
	-v $(CACHE_DIR)/target:/home/circleci/project/target \
	-v $(WORKDIR)/bin:/home/circleci/.local/bin \
	$(DOCKER_IMAGE)

init:
	@mkdir -p target/deploy

pull:
	@docker pull $(DOCKER_IMAGE)

build: init
	@$(DOCKER_INVOKE) .local/bin/build
	@cp $(ZIP_FILE) target/deploy

test: init
	@$(DOCKER_INVOKE) .local/bin/test

clean: init
	@$(DOCKER_INVOKE).local/bin/clean

shell: init
	@$(DOCKER_INVOKE)

deploy: build
	@# update the function
	aws --region us-east-1 lambda update-function-code --function-name $(LAMBDA_FUNCTION_NAME) \
		--zip-file fileb://$(ZIP_FILE)
	@# deploy the api
	aws --region us-east-1 apigateway create-deployment --rest-api-id $(REST_API_ID) --stage-name $(STAGE)

This allows me to effectively build my artifacts both from Vagrant and CircleCI.

It’s clearly an abuse of the system, but it works.

#5

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