diff --git a/files/docker.gpg b/files/docker/apt.gpg
similarity index 100%
rename from files/docker.gpg
rename to files/docker/apt.gpg
diff --git a/files/docker/config.json b/files/docker/config.json
new file mode 100644
index 0000000..8ffe9df
--- /dev/null
+++ b/files/docker/config.json
@@ -0,0 +1,8 @@
+{
+	"data-root": "/home/sonny/vm/docker",
+	"log-driver": "json-file",
+	"log-opts": {
+		"max-size": "100m",
+		"max-file": "3"
+	}
+}
diff --git a/tasks/docker.yml b/tasks/docker.yml
index e938ce9..925e3e4 100644
--- a/tasks/docker.yml
+++ b/tasks/docker.yml
@@ -2,12 +2,23 @@
   become: true
   command: install -m 0755 -d /etc/apt/keyrings
 
-- name: 'copy docker gpg key'
+- name: 'create docker directory'
+  become: true
+  file:
+    path: '/etc/docker'
+    state: directory
+    owner: root
+
+- name: 'copy docker files'
   become: true
   copy:
-    src: 'files/docker.gpg'
-    dest: '/etc/apt/keyrings/docker.gpg'
+    src: '{{ item.src }}'
+    dest: '{{ item.dest }}'
     owner: root
+  loop:
+    - { src: 'files/docker/apt.gpg', dest: '/etc/apt/keyrings/docker.gpg' }
+    - { src: 'files/docker/config.json', dest: '/etc/docker/daemon.json' }
+  register: docker_config
 
 - name: 'install docker apt source'
   become: true
@@ -25,3 +36,12 @@
       - docker-ce-cli
       - containerd.io
       - docker-compose-plugin
+  register: docker_install
+
+- name: restart docker service
+  become: true
+  systemd:
+    name: docker.service
+    state: restarted
+    enabled: true
+  when: docker_config.changed or docker_install.changed