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cameleer-saas/docker/runtime-loader/entrypoint.sh
hsiegeln ac8d628271
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feat(ci): build and push cameleer-runtime-loader image
Move the init-container loader image build from cameleer-server CI into
this repo so all sidecar/infra image builds (runtime-base, postgres,
clickhouse, traefik, logto, and now runtime-loader) live in one place.

The loader is consumed by cameleer-server's DockerRuntimeOrchestrator as
a per-replica init container that fetches the tenant JAR from a signed
URL into a named volume before the main container starts. Source +
Dockerfile copied verbatim from cameleer-server@c2efb7fb (the image with
the volume-permission fix). The published tag path is unchanged
(gitea.siegeln.net/cameleer/cameleer-runtime-loader:latest), so running
tenant servers continue pulling the same image.

Build step matches the runtime-base/postgres/clickhouse/traefik pattern
(unconditional rebuild on every push, sha + branch tags, --provenance=false
for Gitea). cameleer-server will follow up with a commit removing its
loader-build step and switching its LoaderHardeningIT to pull the
published image instead of building from a local Dockerfile.
2026-04-28 13:00:23 +02:00

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#!/bin/sh
# cameleer-runtime-loader: fetches one JAR from a signed URL into the shared
# /app/jars/ volume, verifies size, exits. Runs in the same hardened sandbox as
# the main container (cap_drop ALL, read-only rootfs, etc.) — only /app/jars/
# is writeable.
set -eu
: "${ARTIFACT_URL:?ARTIFACT_URL is required}"
: "${ARTIFACT_EXPECTED_SIZE:?ARTIFACT_EXPECTED_SIZE is required}"
OUT=/app/jars/app.jar
mkdir -p /app/jars
echo "loader: fetching artifact (expected $ARTIFACT_EXPECTED_SIZE bytes)"
# -q quiet, -O output, --tries=3 retry transient network blips,
# --timeout=30 cap stalls. wget exits non-zero on HTTP >=400.
wget -q --tries=3 --timeout=30 -O "$OUT" "$ARTIFACT_URL"
actual=$(wc -c < "$OUT")
if [ "$actual" -ne "$ARTIFACT_EXPECTED_SIZE" ]; then
echo "loader: size mismatch — expected $ARTIFACT_EXPECTED_SIZE, got $actual" >&2
exit 2
fi
echo "loader: artifact written to $OUT ($actual bytes)"