I’ve set up docker builds for a github repository.
For my builds I’m using a publicly available base image.
A specific tag of the base image is used by my builder.
Where otp_tag is :
This was all working last week, but is now breaking with an ‘invalid reference format’ error :
Building in Docker Cloud's infrastructure... Cloning into '.'... Warning: Permanently added the RSA host key for IP address '22.214.171.124' to the list of known hosts. Reset branch 'master' Your branch is up-to-date with 'origin/master'. KernelVersion: 4.4.0-93-generic Arch: amd64 BuildTime: 2017-08-17T22:50:04.828747906+00:00 ApiVersion: 1.30 Version: 17.06.1-ce MinAPIVersion: 1.12 GitCommit: 874a737 Os: linux GoVersion: go1.8.3 Starting build of index.docker.io/bryanhuntesl/artful-riak:latest... Step 1/35 : ARG otp_tag ---> Step 2/35 : FROM bryanhuntesl/artful-erlang:$otp_tag AS artful_riak_builder invalid reference format ERROR: Build failed: invalid reference format ERROR: Build failed with exit code 2 ERROR: Build in 'master:/builders/context:/dockerfiles/artful-riak' (3fa026ea) failed in 0:00:15
Screenshot of how it’s configured :
Anyone got any suggestions?