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My CI was occasionally stacking up deployments. I wanted to share some simple optimisations that improved the deployment time of TechTalks from ~13 min to just 25 sec.
🚀 Time saved ~4 min (I'm not sure why so much TBH)
append :linked_dirs, 'node_modules'
2. Cache webpacker output
🚀 Time saved ~6 min
I use Webpacker for
packaging. All JS was being compiled
everytime even if no changes had been made. I
was vaguely aware this was a known issue. I didn't however know it was fixed but
manifest.json and builds weren't
retained between builds then it still built.
append :linked_dirs, 'public/packs'
3. Limit node memory
Our servers have 4GB RAM and currently no swap space (probably something I should look into).
Occasionally pre-compiling webpacker assets
would run out of memory and cause the deploy
to silently fail due to a default setting of
webpack_compile_output: false in
webpacker.yml which I changed. I also set
an enviroment variable to tame this in the