fix: ensure we can execute run commands when exec is executed as part of an entrypoint

Closes #8052

plugins/scheduler-docker-local/scheduler-run

@@ -109,7 +109,8 @@ trigger-scheduler-docker-local-scheduler-run() {
     if [[ -n "$PROC_CMD" ]]; then
       dokku_log_info1_quiet "Found '$POTENTIAL_PROCFILE_KEY' in Procfile, running that command"
       DOCKER_ARGS+=" --label=com.dokku.process-type=$POTENTIAL_PROCFILE_KEY"
-      set -- "$PROC_CMD" "${@:2}"
+      read -ra proc_array <<<"$PROC_CMD"
+      set -- "${proc_array[@]}" "${@:2}"
     fi
   fi
 

tests/apps/python/exec-entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+set -o pipefail
+
+exec "$@"

tests/apps/python/exec.Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.12.6-bookworm
+
+EXPOSE 3001/udp
+EXPOSE  3000/tcp
+EXPOSE 3003
+
+COPY . /app
+
+WORKDIR /app
+
+ENTRYPOINT ["/app/exec-entrypoint.sh"]

tests/apps/python/exec.Procfile

@@ -0,0 +1 @@
+task: echo 'hi dokku'

tests/unit/builder-dockerfile.bats

@@ -51,6 +51,35 @@ teardown() {
   assert_output_contains 'echo hi' 0
 }
 
+@test "(builder-dockerfile) exec" {
+  run /bin/bash -c "dokku builder-dockerfile:set $TEST_APP dockerfile-path exec.Dockerfile"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku app-json:set $TEST_APP appjson-path app.json-fake"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku ps:set $TEST_APP procfile-path exec.Procfile"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku run $TEST_APP task"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains "Found 'task' in Procfile, running that command"
+  assert_output_contains 'hi dokku'
+}
+
 @test "(builder-dockerfile) config export" {
   run /bin/bash -c "dokku config:set $TEST_APP GITHUB_TOKEN=custom-value"
   echo "output: $output"