Lambda docker image won't start if i overwrite entrypoint from lambda console

Question

I have this Dockerfile

ARG FUNCTION_DIR="/opt/"
FROM node:10.13-alpine@sha256:22c8219b21f86dfd7398ce1f62c48a022fecdcf0ad7bf3b0681131bd04a023a2 AS BUILD_IMAGE
ARG FUNCTION_DIR
RUN apk --update add cmake autoconf automake libtool binutils libexecinfo-dev python2 gcc make g++ zlib-dev
ENV NODE_ENV=production
ENV PYTHON=/usr/bin/python2
RUN mkdir -p ${FUNCTION_DIR}
WORKDIR ${FUNCTION_DIR}
COPY package.json yarn.lock ./
RUN yarn --frozen-lockfile
RUN npm prune --production
RUN yarn cache clean
RUN npm cache clean --force
FROM node:10.13-alpine@sha256:22c8219b21f86dfd7398ce1f62c48a022fecdcf0ad7bf3b0681131bd04a023a2
ARG FUNCTION_DIR
ENV NODE_ENV=production
ENV NODE_OPTIONS=--max_old_space_size=4096
RUN apk update 
    && apk upgrade 
    && apk add mongodb-tools fontconfig dumb-init 
    && rm -rf /var/cache/apk/*
RUN mkdir -p ${FUNCTION_DIR}
WORKDIR ${FUNCTION_DIR}
COPY --from=BUILD_IMAGE ${FUNCTION_DIR}/node_modules ./node_modules
COPY . .
RUN if [ -f  core/config/local.js ]; then rm core/config/local.js; fi
RUN cp core/config/local.js.aws.readonly core/config/local.js
USER node
EXPOSE 8080
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["node", "app.js", "--app=search", "--env=production"]

I use this Dockerfile to generate an image (called core-a) that run our application in K8s. I've added some code inside my application to handle the case our application is launched from a lambda function and i've created another Dockerfile like the one above but using custom ENTRYPOINT and CMD setting this values.

ENTRYPOINT [ "/usr/local/bin/npx", "aws-lambda-ric" ]
CMD [ "apps/search/index.handler" ]

Than i deployed this image called core-b to ecr using core-b as docker image for a lambda function and everything works as expected. After that i thought that i can use the possibility to overwrite entrypoint and CMD in order to use the same docker image for both environments, so i modified Lambda function's image pointing to core-a and using the entrypoint and cmd values i used in core-b dockerfile, but doing so i get an error

Couldn't find valid bootstrap(s): ["/usr/local/bin/npx"]

Did anyone have any suggestion ?

question from:https://stackoverflow.com/questions/66048119/lambda-docker-image-wont-start-if-i-overwrite-entrypoint-from-lambda-console

Answer 1

Try to remove the quotation marks (" ") when entering the override value in this web form.

These AWS docs unfortunately have an uncorrect note that say to use the quotation marks on each string.