Faster image build by rafaelfranca · Pull Request #124 · rails/devcontainer

rafaelfranca · 2026-04-22T04:31:49Z

Make image build faster by avoid using emulation to build arm64 images. Instead, have the image built in arm64 ubuntu machines.

The actions also got improved removing duplication and making easier to trigger in the interface.

…c images in parallel Then creating and pushing a multi-arch manifest in a separate step. This allows us to build for amd64 and arm64 simultaneously, reducing overall build time.

andrewn617

This is great.

Just a couple suggestions but glad we are improving this :D

rafaelfranca · 2026-04-22T22:56:45Z

@copilot can you address the comments here?

Agent-Logs-Url: https://github.com/rails/devcontainer/sessions/ef2fb079-610d-4b64-b61b-851dd2c2d34f Co-authored-by: rafaelfranca <47848+rafaelfranca@users.noreply.github.com>

Copilot · 2026-04-22T23:01:48Z

@copilot can you address the comments here?

Addressed in c6f5c2c. I updated the workflow to set up Ruby from .ruby-version and moved interpolated inputs into env variables for safer command usage. No UI changes to screenshot.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

apt.postgresql.org
- Triggering command: /usr/bin/curl curl -s REDACTED grep -F um.pem rvices_root.crt /usr/bin/ln .conf mktemp table.d/chrony-o ln -sf es_root.pem ot_R46.crt /usr/bin/ln 4.deb p.ci plit ln (dns block)
- Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https /var/lib/dpkg/tm-x (dns block)
containers.dev
- Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/devcontainer/devcontainer/node_modules/.bin/devcontainer features test features -i ubuntu:noble (dns block)
docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com
- Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/devcontainer/devcontainer/node_modules/.bin/devcontainer features test features -i ubuntu:noble (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

Configure Actions setup steps to set up my environment, which run before the firewall is enabled
Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

rafaelfranca · 2026-04-23T00:43:21Z

@copilot the environment variables are still being passed as arguments. We should just read the environment in the bin/normalize-publish-inputs file. Can you change that? Only read from the env if the arguments aren't passed, but, in the github action, don't pass any argument

Agent-Logs-Url: https://github.com/rails/devcontainer/sessions/23db5954-a602-4ea7-94c3-bd7a0be7c1f5 Co-authored-by: rafaelfranca <47848+rafaelfranca@users.noreply.github.com>

Copilot · 2026-04-23T00:49:17Z

@copilot the environment variables are still being passed as arguments. We should just read the environment in the bin/normalize-publish-inputs file. Can you change that? Only read fro...

Implemented in 764953e: the workflow now runs ruby bin/normalize-publish-inputs with no arguments, and the script reads RUBY_VERSIONS, IMAGE_VERSIONS, and REPOSITORY from env only when corresponding CLI args are not provided. I also added coverage for env fallback and arg precedence in 143747a. No UI changes to screenshot.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

apt.postgresql.org
- Triggering command: /usr/bin/curl curl -s REDACTED grep -F um.pem rvices_root.crt /usr/bin/ln n.conf stall-C6OeOx/210configure /usr/bin/dpkg-sp ln -sf es_root.pem ot_R46.crt /usr/bin/ln 4.deb p.ci b ln (dns block)
- Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https /var/lib/dpkg/tm-x (dns block)
containers.dev
- Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/devcontainer/devcontainer/node_modules/.bin/devcontainer features test features -i ubuntu:noble --gdwarf-5 --64 -o regexp.o /tmp/cclK60Sn.s conf�� by-3.2.0 --global 1.9.0/include credential.helpeas 1.9.0/ext (dns block)
docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com
- Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/devcontainer/devcontainer/node_modules/.bin/devcontainer features test features -i ubuntu:noble --gdwarf-5 --64 -o regexp.o /tmp/cclK60Sn.s conf�� by-3.2.0 --global 1.9.0/include credential.helpeas 1.9.0/ext (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

Configure Actions setup steps to set up my environment, which run before the firewall is enabled
Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

…n the workflow

rafaelfranca · 2026-04-23T03:50:12Z

@copilot hmmm. It seems publish-images-reusable is appearing as a worflow you can run. It should not

rafaelfranca added 3 commits April 22, 2026 04:12

Improve the image builds by building and pushing architecture-specifi…

9590cc4

…c images in parallel Then creating and pushing a multi-arch manifest in a separate step. This allows us to build for amd64 and arm64 simultaneously, reducing overall build time.

Remove duplicated code from the publish image actions

7a679f9

Make easier to publish new versions by not having to type json

c06d32e

andrewn617 reviewed Apr 22, 2026

View reviewed changes

Comment thread .github/workflows/publish-new-ruby-versions.yaml Outdated

andrewn617 reviewed Apr 22, 2026

View reviewed changes

Comment thread .github/workflows/publish-new-ruby-versions.yaml Outdated

andrewn617 approved these changes Apr 22, 2026

View reviewed changes

Copilot started work on behalf of rafaelfranca April 22, 2026 22:56 View session

Use repo Ruby and env vars in publish-new-ruby-versions workflow

c6f5c2c

Agent-Logs-Url: https://github.com/rails/devcontainer/sessions/ef2fb079-610d-4b64-b61b-851dd2c2d34f Co-authored-by: rafaelfranca <47848+rafaelfranca@users.noreply.github.com>

Copilot finished work on behalf of rafaelfranca April 22, 2026 23:02

Copilot started work on behalf of rafaelfranca April 23, 2026 00:43 View session

Copilot AI and others added 2 commits April 23, 2026 00:47

Fallback to env vars in normalize script and remove workflow args

764953e

Agent-Logs-Url: https://github.com/rails/devcontainer/sessions/23db5954-a602-4ea7-94c3-bd7a0be7c1f5 Co-authored-by: rafaelfranca <47848+rafaelfranca@users.noreply.github.com>

Add tests for env fallback in normalize publish script

143747a

Agent-Logs-Url: https://github.com/rails/devcontainer/sessions/23db5954-a602-4ea7-94c3-bd7a0be7c1f5 Co-authored-by: rafaelfranca <47848+rafaelfranca@users.noreply.github.com>

Copilot finished work on behalf of rafaelfranca April 23, 2026 00:50

Make the binary executable and run it with the correct Ruby version i…

dd0d281

…n the workflow

rafaelfranca enabled auto-merge April 23, 2026 03:10

rafaelfranca merged commit 5be7b92 into main Apr 23, 2026
36 checks passed

rafaelfranca deleted the rm-faster-buiolds branch April 23, 2026 03:15

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Faster image build#124

Faster image build#124
rafaelfranca merged 7 commits intomainfrom
rm-faster-buiolds

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Copilot AI commented Apr 22, 2026 •

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rafaelfranca commented Apr 23, 2026

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rafaelfranca commented Apr 23, 2026

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I tried to connect to the following addresses, but was blocked by firewall rules:

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rafaelfranca commented Apr 23, 2026

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