diff --git a/.docker/release/files/entrypoint.sh b/.docker/release/files/entrypoint.sh
index 92e3be241..de93abf81 100755
--- a/.docker/release/files/entrypoint.sh
+++ b/.docker/release/files/entrypoint.sh
@@ -1,6 +1,10 @@
 #!/bin/sh
 set -eu
 
+DEBUG=${DEBUG:-}
+if [ "$DEBUG" = 'true' ]; then
+    set -x
+fi
 UPLOAD_MAX_SIZE=${UPLOAD_MAX_SIZE:-25M}
 MEMORY_LIMIT=${MEMORY_LIMIT:-128M}
 SECURE_COOKIES=${SECURE_COOKIES:-true}
diff --git a/examples/docker-compose.mysql.yml b/examples/docker-compose.mysql.yml
index 791fad283..b555a4c15 100644
--- a/examples/docker-compose.mysql.yml
+++ b/examples/docker-compose.mysql.yml
@@ -4,6 +4,8 @@ services:
     image: leojonathanoh/snappymail:pr-1
     ports:
       - 8888:8888
+    environment:
+      - DEBUG=true
     volumes:
       - snappymail:/var/lib/snappymail
     networks:
diff --git a/examples/docker-compose.postgres.yml b/examples/docker-compose.postgres.yml
index 9f521b21d..f2bf1b7bb 100644
--- a/examples/docker-compose.postgres.yml
+++ b/examples/docker-compose.postgres.yml
@@ -4,6 +4,8 @@ services:
     image: leojonathanoh/snappymail:pr-1
     ports:
       - 8888:8888
+    environment:
+      - DEBUG=true
     volumes:
       - snappymail:/var/lib/snappymail
     networks:
diff --git a/examples/docker-compose.simple.yml b/examples/docker-compose.simple.yml
index 9625ac24f..e45f48477 100644
--- a/examples/docker-compose.simple.yml
+++ b/examples/docker-compose.simple.yml
@@ -4,6 +4,8 @@ services:
     image: leojonathanoh/snappymail:pr-1
     ports:
       - 8888:8888
+    environment:
+      - DEBUG=true
     volumes:
       - snappymail:/var/lib/snappymail
     networks:
diff --git a/examples/docker-compose.traefik.yml b/examples/docker-compose.traefik.yml
index 7bed2918b..91a8db51e 100644
--- a/examples/docker-compose.traefik.yml
+++ b/examples/docker-compose.traefik.yml
@@ -55,6 +55,8 @@ services:
       - "traefik.http.services.snappymail.loadbalancer.server.port=8888"
     expose:
       - 8888
+    environment:
+      - DEBUG=true
     volumes:
       - snappymail:/var/lib/snappymail
     networks: