feat: support admin account creation for gotrue image (#1036)

docker/gotrue/Dockerfile

@@ -7,13 +7,14 @@ RUN git apply mfa_enabled.patch
 RUN CGO_ENABLED=0 go build -o /auth .
 RUN rm /go/src/supabase/auth/migrations/20240612123726_enable_rls_update_grants.up.sql
 
-FROM scratch
-COPY --from=base /usr/share/zoneinfo /usr/share/zoneinfo
-COPY --from=base /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=base /etc/passwd /etc/passwd
-COPY --from=base /etc/group /etc/group
+FROM alpine:3.20
+RUN adduser -D -u 1000 supabase
+
+RUN apk add --no-cache ca-certificates
+USER supabase
 
 COPY --from=base /auth .
 COPY --from=base /go/src/supabase/auth/migrations ./migrations
 
-CMD ["./auth"]
+COPY start.sh .
+CMD ["./start.sh"]

docker/gotrue/start.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env sh
+
+set -e
+./auth migrate
+if [ -n "${GOTRUE_ADMIN_EMAIL}" ] && [ -n "${GOTRUE_ADMIN_PASSWORD}" ]; then
+    set +e
+    echo "Creating admin user for gotrue..."
+    command_output=$(./auth admin createuser --admin "${GOTRUE_ADMIN_EMAIL}" "${GOTRUE_ADMIN_PASSWORD}" 2>&1)
+    command_status=$?
+    # Check if the command failed
+    if [ $command_status -ne 0 ]; then
+      # Check if the output contains the specific keyword
+      if echo "$command_output" | grep -q "user already exists"; then
+        echo "Admin user already exists. Skipping..."
+      else
+        echo "Command failed. Exiting."
+        echo $command_output
+        exit $command_status
+      fi
+    fi
+fi
+set -e
+./auth