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Fetch alpha-engine-lib PAT from SSM on the spot (not via .env on dispatcher) #45

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Merged
cipher813 merged 1 commit into from
Apr 16, 2026
Merged

Fetch alpha-engine-lib PAT from SSM on the spot (not via .env on dispatcher) #45

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22 changes: 13 additions & 9 deletions infrastructure/spot_data_weekly.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -100,12 +100,8 @@ if [ ! -f "$KEY_FILE" ]; then
echo "ERROR: SSH key not found at $KEY_FILE"
exit 1
fi

# ALPHA_ENGINE_LIB_TOKEN required for pip install of the private lib.
if [ -z "${ALPHA_ENGINE_LIB_TOKEN:-}" ]; then
echo "ERROR: ALPHA_ENGINE_LIB_TOKEN not set in .env — required for alpha-engine-lib pip install on spot"
exit 1
fi
# Note: alpha-engine-lib PAT is fetched by the spot itself from SSM
# (/alpha-engine/lib-token) during the DEPS step — dispatcher never touches it.

# ── Launch spot ──────────────────────────────────────────────────────────────
echo "==> Requesting spot instance ($INSTANCE_TYPE)..."
Expand Down Expand Up @@ -198,6 +194,11 @@ scp $SSH_OPTS -i "$KEY_FILE" \
ec2-user@"$PUBLIC_IP":/home/ec2-user/alpha-engine-data/.env

# ── Install python deps ──────────────────────────────────────────────────────
# The spot pulls its own alpha-engine-lib PAT from SSM (same pattern as
# ae-trading's boot-pull.sh). Dispatcher never handles the secret. The
# spot's IAM profile (alpha-engine-executor-profile) grants ssm:GetParameter
# on /alpha-engine/*. Token is scoped to a local shell var, never exported
# or logged.
echo "==> Installing Python dependencies..."
run_remote bash -s <<'DEPS'
set -euo pipefail
Expand All @@ -207,11 +208,14 @@ set -a
# shellcheck disable=SC1091
source /home/ec2-user/alpha-engine-data/.env
set +a
if [ -z "${ALPHA_ENGINE_LIB_TOKEN:-}" ]; then
echo "ERROR: ALPHA_ENGINE_LIB_TOKEN not set in .env"

LIB_TOKEN=$(aws ssm get-parameter --name /alpha-engine/lib-token --with-decryption --query 'Parameter.Value' --output text --region us-east-1 2>/dev/null || echo "")
if [ -z "$LIB_TOKEN" ]; then
echo "ERROR: could not fetch /alpha-engine/lib-token from SSM — required for alpha-engine-lib pip install"
exit 1
fi
git config --global url."https://x-access-token:${ALPHA_ENGINE_LIB_TOKEN}@github.com/cipher813/alpha-engine-lib".insteadOf "https://github.com/cipher813/alpha-engine-lib"
git config --global url."https://x-access-token:${LIB_TOKEN}@github.com/cipher813/alpha-engine-lib".insteadOf "https://github.com/cipher813/alpha-engine-lib"
unset LIB_TOKEN

if command -v python3.12 &>/dev/null; then
PIP="python3.12 -m pip"
Expand Down
20 changes: 13 additions & 7 deletions infrastructure/spot_drift_detection.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -80,10 +80,8 @@ if [ ! -f "$KEY_FILE" ]; then
echo "ERROR: SSH key not found at $KEY_FILE"
exit 1
fi
if [ -z "${ALPHA_ENGINE_LIB_TOKEN:-}" ]; then
echo "ERROR: ALPHA_ENGINE_LIB_TOKEN not set in .env"
exit 1
fi
# Note: alpha-engine-lib PAT is fetched by the spot itself from SSM
# (/alpha-engine/lib-token) during the DEPS step — dispatcher never touches it.

# ── Launch spot ──────────────────────────────────────────────────────────────
echo "==> Requesting spot instance ($INSTANCE_TYPE)..."
Expand Down Expand Up @@ -170,8 +168,9 @@ scp $SSH_OPTS -i "$KEY_FILE" \
"$ENV_FILE" \
ec2-user@"$PUBLIC_IP":/home/ec2-user/alpha-engine-data/.env

# ── Install dependencies (data repo's requirements suffice — drift_detector
# uses numpy/boto3/pandas from the shared universe) ───────────────────────
# ── Install dependencies ─────────────────────────────────────────────────────
# Spot pulls its own alpha-engine-lib PAT from SSM (/alpha-engine/lib-token),
# mirroring ae-trading's boot-pull.sh. Dispatcher never handles the secret.
echo "==> Installing Python dependencies..."
run_remote bash -s <<'DEPS'
set -euo pipefail
Expand All @@ -181,7 +180,14 @@ set -a
# shellcheck disable=SC1091
source /home/ec2-user/alpha-engine-data/.env
set +a
git config --global url."https://x-access-token:${ALPHA_ENGINE_LIB_TOKEN}@github.com/cipher813/alpha-engine-lib".insteadOf "https://github.com/cipher813/alpha-engine-lib"

LIB_TOKEN=$(aws ssm get-parameter --name /alpha-engine/lib-token --with-decryption --query 'Parameter.Value' --output text --region us-east-1 2>/dev/null || echo "")
if [ -z "$LIB_TOKEN" ]; then
echo "ERROR: could not fetch /alpha-engine/lib-token from SSM — required for alpha-engine-lib pip install"
exit 1
fi
git config --global url."https://x-access-token:${LIB_TOKEN}@github.com/cipher813/alpha-engine-lib".insteadOf "https://github.com/cipher813/alpha-engine-lib"
unset LIB_TOKEN

if command -v python3.12 &>/dev/null; then
PIP="python3.12 -m pip"
Expand Down
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