问题
I've released a bunch of Docker apps on Azure App Services in the past, but for some reason, after creating a new build and release pipeline in Azure DevOps, my Docker containers won't run in an Azure App Service. These particular containers are on the Linux flavor.
Switching between various Docker images, any built with the old pipeline work, but ones built with the new pipeline do not.
When I copy-paste the exact command from the App Service's log file into my local command line, it works just fine. I'm able to access the site as the same port as the App Service.
Here is my Dockerfile:
FROM node:8.12.0-alpine
ARG BUILD_VERSION
ENV BUILD_VERSION ${BUILD_VERSION}
ENV LOCAL_DEVELOPMENT false
ENV NODE_ENV production
ARG STAGING_DIRECTORY
WORKDIR ~/
COPY ${STAGING_DIRECTORY} .
ENTRYPOINT node . server ${BUILD_VERSION}
回答1:
While I can't say for sure what's causing your issue, it's probably because there's an error running the ENTRYPOINT command in your container.
Is it possible you're using a docker-compose.yml file? Your COPY command can't have ../ or anything outside of the current directory. To do this, you'll want to change the context via either your docker build command or the docker-compose.yml file.
I had a similar issue where I was changing the WORKDIR and then doing a COPY . . instead of leaving WORKDIR at ~/ and doing COPY ${STAGING_DIRECTORY} ..
In Azure, go to your "Container settings". Down below, you'll see a log. You can use this log to determine the issue you're having.
It will look something like this:
2018_10_16_RD00155DFE4342_default_docker.log:
2018-10-16T16:14:33.084558195Z throw err;
2018-10-16T16:14:33.084568395Z ^
2018-10-16T16:14:33.084576596Z
2018-10-16T16:14:33.084584396Z Error: Cannot find module '/home/vsts/work/1/a/publish'
2018-10-16T16:14:33.084592096Z at Function.Module._resolveFilename (module.js:548:15)
2018-10-16T16:14:33.084599797Z at Function.Module._load (module.js:475:25)
2018-10-16T16:14:33.084607297Z at Function.Module.runMain (module.js:694:10)
2018-10-16T16:14:33.084614697Z at startup (bootstrap_node.js:204:16)
2018-10-16T16:14:33.084622297Z at bootstrap_node.js:625:3
2018_10_16_RD00155DFE4342_docker.log:
2018-10-16 16:14:01.928 ERROR - Container [CONTAINER_NAME] for site [APP_SERVICE_NAME] has exited, failing site start
2018-10-16 16:14:27.665 INFO - Starting container for site
2018-10-16 16:14:27.666 INFO - docker run -d -p 26257:80 --name [CONTAINER_NAME] -e DOCKER_CUSTOM_IMAGE_NAME=[...]
2018-10-16 16:14:29.735 ERROR - Container [CONTAINER_NAME] for site [APP_SERVICE_NAME] has exited, failing site start
2018-10-16 16:14:31.998 INFO - Starting container for site
2018-10-16 16:14:31.999 INFO - docker run -d -p 3225:80 --name [CONTAINER_NAME] -e DOCKER_CUSTOM_IMAGE_NAME=[...]
2018-10-16 16:14:34.009 ERROR - Container [CONTAINER_NAME] for site [APP_SERVICE_NAME] has exited, failing site start
The *_default_docker.log file has the error your Docker file spouts while *_docker.log has the generic error message from Azure.
来源：https://stackoverflow.com/questions/52850254/docker-container-fails-to-start-in-an-azure-app-service