gatsby-docker: Docker build fails on the first line

This issue is still reproducible and prevents new users from being able to make use of the docker image.

Steps to reproduce:

mytmpdir=$(mktemp -d 2>/dev/null || mktemp -d -t 'devreprogatsby')
cd $mytmpdir

npm i -g gatsby-cli
gatsby new gardner
cd gardner/

cat << EOF > .dockerignore
.cache/
node_modules/
public/
EOF

cat << EOF > Dockerfile
FROM gatsbyjs/gatsby:onbuild as build

FROM gatsbyjs/gatsby
COPY --from=build /app/public /pub
EOF

gatsby build

docker build -t gh-issue-39 .

echo "Be sure to remove the temporary files: "
echo rm -rf $mytmpdir

This results in:

Sending build context to Docker daemon  1.519MB
Step 1/3 : FROM gatsbyjs/gatsby:onbuild as build
# Executing 1 build trigger
ADD failed: stat /var/lib/docker/tmp/docker-builder209143335/public: no such file or directory

I am pretty sure the problem is that the onbuild tag on docker hub contains the same image like the latest tag, which it should not. It is supposed to contain the result of https://github.com/gatsbyjs/gatsby-docker/blob/master/Dockerfile.onbuild but it does not. Instead both images are a result of https://github.com/gatsbyjs/gatsby-docker/blob/master/Dockerfile which is only supposed to be used for the latest tag. The issue @shicholas linked (#38) contains the right workarounds for this issue. (Another option is to use the Dockerfile.onbuild from this repo and build it yourself.)

I totally agree with this. My solution was to build the image and host it in docker hub. If someone wants to use it as well, just replace FROM gatsbyjs/gatsby:onbuild as build with FROM masasip/gatsby:onbuild as build

To repleat my steps and host image on your own, create a repo to docker hub and then run locally:

git clone git@github.com:gatsbyjs/gatsby-docker.git
cd gatsby-docker
docker build -t gatsby:onbuild --file Dockerfile.onbuild .
docker login --username=<your-docker-hub-username>
docker tag gatsby:onbuild <your-docker-hub-username>/<your-docker-hub-repo>:onbuild
docker push <your-docker-hub-username>/<your-docker-hub-repo>:onbuild

and replace FROM gatsbyjs/gatsby:onbuild as build with <your-docker-hub-username>/<your-docker-hub-repo>:onbuild

I solved the problem by doing a custom Dockerfile based on nginx image. My Dockerfile and my nginx config are in this public gist https://gist.github.com/NogaMan/3ae6bd88e8ae063ab6da56bc36659c7d

The files are working 100%

I am pretty sure the problem is that the onbuild tag on docker hub contains the same image like the latest tag, which it should not. It is supposed to contain the result of https://github.com/gatsbyjs/gatsby-docker/blob/master/Dockerfile.onbuild but it does not. Instead both images are a result of https://github.com/gatsbyjs/gatsby-docker/blob/master/Dockerfile which is only supposed to be used for the latest tag. The issue @shicholas linked (#38) contains the right workarounds for this issue. (Another option is to use the Dockerfile.onbuild from this repo and build it yourself.)

Any news about fixing this bug?

hmm, I’m not sure what your issue is then. given that this docker image hasn’t been updated in a while, I shared a solution (and there are others) on this thread - https://github.com/gatsbyjs/gatsby-docker/issues/38#issuecomment-616043649 hope either solution listed can help