fix: use sh, only thing available

compose.yml

@@ -44,7 +44,6 @@ services:
       - TEAM_LOGO
       - URL=https://$DOMAIN
       - UTILS_SECRET_FILE=/run/secrets/utils_secret
-    command: yarn start
     entrypoint: /docker-entrypoint.sh
     deploy:
       labels:

entrypoint.sh.tmpl

@@ -1,32 +1,10 @@
-#!/bin/bash
-
-set -e
-
-file_env() {
-   local var="$1"
-   local fileVar="${var}_FILE"
-   local def="${2:-}"
-
-   if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
-      echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
-      exit 1
-   fi
-
-   local val="$def"
-
-   if [ "${!var:-}" ]; then
-      val="${!var}"
-   elif [ "${!fileVar:-}" ]; then
-      val="$(< "${!fileVar}")"
-   fi
-
-   export "$var"="$val"
-   unset "$fileVar"
-}
-
-file_env "AWS_SECRET_KEY"
-file_env "OIDC_CLIENT_SECRET"
-file_env "UTILS_SECRET"
-file_env "DATABASE_PASSWORD"
+#!/bin/sh
 
+export AWS_SECRET_KEY=$(cat /run/secrets/aws_secret_key)
+export OIDC_CLIENT_SECRET=$(cat /run/secrets/oidc_client_secret)
+export UTILS_SECRET=$(cat /run/secrets/utils_secret)
+export SECRET_KEY=$(cat /run/secrets/secret_key)
+export DATABASE_PASSWORD=$(cat /run/secrets/db_password)
 export DATABASE_URL="postgres://outline:${DATABASE_PASSWORD}@${STACK_NAME}_postgres:5432/outline"
+
+/usr/local/bin/yarn start "$@"