Add build caching for Horizon and Friendbot #748
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leighmcculloch
changed the title
sagpatil
approved these changes
Aug 28, 2025
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What
Added caching steps to the build the Horizon and Friendbot for the image.
Why
Prevents redundant rebuilds of images when source code hasn't changed, reducing CI build times. Historically Horizon and Friendbot builds were not cached because they are blazing fast. However the arm64 builds are not that fast because we cross-compile on amd64. We could simply change the jobs to run on the arm64 runners, but those runners are more expensive, so caching to reduce the runs we do on the paid runners is helpful.