Exec Bash just after sourcing stolon env

Author: dangra

Dockerfile

@@ -56,7 +56,7 @@ RUN useradd -ms /bin/bash stolon
 RUN mkdir -p /run/haproxy/
 COPY --from=flyutil /fly/bin/* /usr/local/bin/
 
-ENV ENV="/fly/set-stolon-environment.sh"
+ENV ENV="/fly/shell-init"
 
 EXPOSE 5432
 

scripts/set-stolon-environment.sh

@@ -0,0 +1,11 @@
+#!/bin/dash
+# Dash sources this file according to POSIX envvar $ENV declared in Dockerfile
+# https://manpages.debian.org/stretch/dash/dash.1.en.html#Invocation
+
+if [ -f /data/.env ]; then
+  export $(cat /data/.env)
+fi
+
+# Upgrade to Bash shell
+unset ENV
+exec /bin/bash "$@"