Fix chamber exec failing on --trace flag

Dockerfile

@@ -4,7 +4,7 @@
 
 ### dev
 
 FROM ruby:${RUBY_VERSION}-slim as dev
 ARG NODE_VERSION
 
 USER root
@@ -34,9 +34,9 @@
 
 FROM dev AS build
 
 ENV RAILS_ENV production
 ENV NODE_ENV production
 ENV AWS_ACCESS_KEY_ID dummy
 ENV AWS_SECRET_ACCESS_KEY dummy
 
 RUN bundle exec bootsnap precompile --gemfile app/ lib/
@@ -45,21 +45,21 @@
 
 ### ld_preload trickery
 
 FROM ruby:${RUBY_VERSION}-slim as amd64_jemalloc
 ENV LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2
 
 FROM ruby:${RUBY_VERSION}-slim as arm64_jemalloc
 ENV LD_PRELOAD=/usr/lib/aarch64-linux-gnu/libjemalloc.so.2
 
 ### production
 
 FROM ${TARGETARCH}_jemalloc as production
 ARG NODE_VERSION
 ARG TARGETARCH
 ARG REVISION
 ARG CHAMBER_VERSION
 
 ENV RAILS_ENV production
 ENV NODE_ENV production
 ENV REVISION ${REVISION}
 
@@ -72,7 +72,7 @@
 # shared-mime-info: Rails dependency
 # libpq5: pg gem dependency
 # mariadb-client: dependency for Intercode 1 import
-RUN apt-get update && apt-get install -y --no-install-recommends openssh-server iproute2 curl python3 libvips42 poppler-utils xz-utils libjemalloc2 shared-mime-info libpq5 mariadb-client && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y --no-install-recommends openssh-server iproute2 curl python3 libvips42 poppler-utils xz-utils libjemalloc2 shared-mime-info libpq5 mariadb-client gosu && rm -rf /var/lib/apt/lists/*
 RUN useradd -ms $(which bash) www
 RUN mkdir /opt/node && \
   cd /opt/node && \

bin/entrypoint.sh

@@ -1,12 +1,9 @@
 #!/bin/bash
 set -e
 
-# Drop to the www user while preserving the current environment (needed so
-# AWS_ROLE_ARN / AWS_WEB_IDENTITY_TOKEN_FILE are visible to the app process).
-# If already running as www (e.g. in tests), just exec directly.
 drop_to_www() {
   if [ "$(id -u)" -eq 0 ]; then
-    exec su -s /bin/bash --preserve-environment -c 'exec "$0" "$@"' www "$@"
+    exec gosu www "$@"
   else
     exec "$@"
   fi

fly.toml

@@ -12,7 +12,7 @@ console_command = "/usr/src/intercode/bin/entrypoint.sh /bin/bash"
 image = "ghcr.io/neinteractiveliterature/intercode:latest"
 
 [deploy]
-release_command = "bundle exec rails release:perform --trace"
+release_command = "bundle exec rails release:perform"
 strategy = "bluegreen"
 
 [env]