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http-request/.forgejo/workflows/sign.yml
flemming-it cdc8fabd5e docs: old product name F∆I Platform -> Ch∆In 
The product is Ch∆In; the old 'F∆I Platform' name survived in module
docs/manifests. Generic 'platform' terms left untouched.

Signed-off-by: flemming-it <sf@flemming.it>
2026-06-16 10:15:25 +02:00

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# F∆I module bundle signing workflow (cosign key-pinning model).
#
# Drop-in template for any module repo under fai-modules/.
# Triggers on tag push (vX.Y.Z) — builds the module, packs the
# .fai bundle, signs the bundle bytes with the Flemming.AI
# signing key (ECDSA P-256), and attaches bundle + .sig sidecar
# to the matching Forgejo Release.
#
# The hub-side verifier ships in 0.12.0+: when an operator sets
# `require_signatures: true`, install downloads the .sig sidecar
# from `<wasm_url>.sig` and verifies it against the pinned store
# public key (built-in for `bundled` / `official`, per-store
# config for everything else).
#
# Adopt by copying this file to `.forgejo/workflows/sign.yml` in
# the module repo and replacing the MODULE_NAME placeholder.
# Add the signing key to Forgejo secrets as FAI_SIGNING_KEY (PEM,
# unencrypted, ECDSA P-256). Rotation is a 5-minute key-roll +
# binary re-release; see infra/cosign/README.md.
name: sign-bundle
on:
push:
tags:
- 'v*.*.*'
env:
CARGO_TERM_COLOR: always
RUST_TOOLCHAIN: "1.86"
CARGO_NET_GIT_FETCH_WITH_CLI: "true"
jobs:
sign:
runs-on: ubuntu-latest
permissions:
contents: write # attach signature to release
env:
# The canonical module name as written in module.yaml.
# Used in the bundle filename + wasm path.
MODULE_NAME: http-request
steps:
# See fai/platform CI for background on the manual external
# checkout: the DinD runner cannot resolve forgejo:3000, so
# we clone via the external URL with $GITHUB_TOKEN.
- name: Checkout via external URL
run: |
set -eu
mkdir -p "$GITHUB_WORKSPACE"
cd "$GITHUB_WORKSPACE"
git init -q
git remote add origin \
"https://x-access-token:${GITHUB_TOKEN}@git.flemming.ai/${GITHUB_REPOSITORY}.git"
git fetch --depth=1 origin "$GITHUB_SHA"
git checkout -q FETCH_HEAD
# The fai-module-sdk dependency lives in another Forgejo org
# behind REQUIRE_SIGNIN_VIEW. MODULE_SDK_PAT (org-level
# secret, read-only on fai/module-sdk) authenticates cargo's
# git fetch via insteadOf.
- name: Configure git URL rewrite for SDK fetch
env:
SDK_PAT: ${{ secrets.MODULE_SDK_PAT }}
run: |
git config --global \
"url.https://x-access-token:${SDK_PAT}@git.flemming.ai/.insteadOf" \
"https://git.flemming.ai/"
- name: Install system dependencies
run: |
apt-get update -qq
apt-get install -y --no-install-recommends \
curl \
ca-certificates \
build-essential \
pkg-config \
libssl-dev \
git \
jq \
openssl
- name: Install Rust toolchain
run: |
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
| sh -s -- -y \
--profile minimal \
--default-toolchain "$RUST_TOOLCHAIN" \
--target wasm32-wasip2
echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
- name: Build module (wasm32-wasip2)
run: cargo build --release --target wasm32-wasip2
- name: Install fai CLI
# Pinned to the production channel; signing requires the
# `fai pack` command. Override FAI_VERSION when bundle
# format compatibility matters.
run: |
curl -fsSL https://get.fai.flemming.ai | sh -s -- --no-bootstrap
# The installer drops fai at $HOME/.local/bin
echo "$HOME/.local/bin" >> "$GITHUB_PATH"
export PATH="$HOME/.local/bin:$PATH"
fai --version
- name: Stage bundle inputs
# The wasm artefact is named after the Cargo package
# (underscored), which may differ from the module name
# in module.yaml (dashed). Resolve it from Cargo.toml so
# the template stays agnostic to the project's naming
# convention.
run: |
set -eu
CARGO_NAME=$(grep -E '^name *= *"' Cargo.toml \
| head -1 | sed 's/.*"\(.*\)".*/\1/')
mkdir -p staging
cp module.yaml staging/
cp "target/wasm32-wasip2/release/${CARGO_NAME}.wasm" staging/module.wasm
if [ -f sbom.cdx.json ]; then cp sbom.cdx.json staging/; fi
if [ -f MODULE.md ]; then cp MODULE.md staging/; fi
if [ -f MODULE.de.md ]; then cp MODULE.de.md staging/; fi
- name: Pack bundle
id: pack
run: |
export PATH="$HOME/.local/bin:$PATH"
BUNDLE="${{ env.MODULE_NAME }}-${{ github.ref_name }}.fai"
fai pack staging --output "$BUNDLE"
echo "bundle=$BUNDLE" >> "$GITHUB_OUTPUT"
ls -la "$BUNDLE"
- name: Sign bundle (Flemming.AI signing key)
env:
FAI_SIGNING_KEY_PEM: ${{ secrets.FAI_SIGNING_KEY }}
run: |
if [ -z "${FAI_SIGNING_KEY_PEM:-}" ]; then
cat >&2 <<'EOF'
FAI_SIGNING_KEY secret is empty or undefined.
This workflow signs module bundles with the Flemming.AI
module-signing key (ECDSA P-256, PKCS#8 PEM, unencrypted).
The matching public key is pinned in the fai-hub binary at
infra/cosign/official.pub — hubs that require_signatures
will reject anything not signed with this key.
To configure:
1. Forgejo -> fai-modules org -> Settings -> Secrets
2. Add secret FAI_SIGNING_KEY (org-level recommended)
3. Paste the unencrypted PEM (BEGIN PRIVATE KEY ...)
The encrypted source-of-truth lives on Stefan's Mac at
~/.fai-secrets/flemming-ai-signing.key (passphrase in
mSecure under "Ch∆In — Module Signing Key (Private)").
See fai/platform infra/cosign/OPERATOR-HANDOFF.md for the
full setup runbook and rotation process.
EOF
exit 1
fi
umask 077
echo "$FAI_SIGNING_KEY_PEM" > /tmp/signing-key.pem
openssl dgst -sha256 \
-sign /tmp/signing-key.pem \
-out "${{ steps.pack.outputs.bundle }}.sig.raw" \
"${{ steps.pack.outputs.bundle }}"
base64 < "${{ steps.pack.outputs.bundle }}.sig.raw" \
> "${{ steps.pack.outputs.bundle }}.sig"
rm "${{ steps.pack.outputs.bundle }}.sig.raw"
shred -u /tmp/signing-key.pem || rm -f /tmp/signing-key.pem
ls -la "${{ steps.pack.outputs.bundle }}.sig"
- name: Round-trip verify
# Sanity-check: the freshly-signed bundle must verify
# against the well-known public key before we publish it.
run: |
curl -fsSL https://git.flemming.ai/fai/platform/raw/branch/main/infra/cosign/official.pub \
-o /tmp/official.pub
openssl dgst -sha256 \
-verify /tmp/official.pub \
-signature <(base64 -d < "${{ steps.pack.outputs.bundle }}.sig") \
"${{ steps.pack.outputs.bundle }}"
- name: Attach bundle + signature to Forgejo Release
run: |
set -eu
BUNDLE="${{ steps.pack.outputs.bundle }}"
SIG="$BUNDLE.sig"
REL_JSON=$(curl -sS \
-H "Authorization: token ${GITHUB_TOKEN}" \
"https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/tags/${GITHUB_REF_NAME}")
REL_ID=$(echo "$REL_JSON" | jq -r '.id // empty')
if [ -z "$REL_ID" ] || [ "$REL_ID" = "null" ]; then
REL_ID=$(curl -sS -X POST \
-H "Authorization: token ${GITHUB_TOKEN}" \
-H "Content-Type: application/json" \
"https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases" \
-d "{\"tag_name\":\"${GITHUB_REF_NAME}\",\"name\":\"${GITHUB_REF_NAME}\",\"draft\":false,\"prerelease\":false,\"body\":\"Auto-generated by sign-bundle workflow\"}" \
| jq -r '.id')
fi
upload_one() {
local asset_path="$1" asset
asset=$(basename "$asset_path")
EXISTING=$(curl -sS \
-H "Authorization: token ${GITHUB_TOKEN}" \
"https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/${REL_ID}/assets" \
| jq -r ".[] | select(.name==\"${asset}\") | .id")
if [ -n "$EXISTING" ]; then
curl -sS -X DELETE \
-H "Authorization: token ${GITHUB_TOKEN}" \
"https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/${REL_ID}/assets/${EXISTING}" \
|| true
fi
curl -sS -X POST \
-H "Authorization: token ${GITHUB_TOKEN}" \
-F "attachment=@${asset_path}" \
"https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/${REL_ID}/assets?name=${asset}" \
> /dev/null
echo "uploaded $asset"
}
upload_one "$BUNDLE"
upload_one "$SIG"
echo "release ${GITHUB_REF_NAME} ready: https://git.flemming.ai/${GITHUB_REPOSITORY}/releases/tag/${GITHUB_REF_NAME}"
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