diff --git a/Dockerfile b/Dockerfile
index 5b922f5..80c1b6b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,8 @@ RUN apt-get update && \
     echo "postgres   ALL = (ALL) NOPASSWD:ALL" >> /etc/sudoers && \
     echo "X11Forwarding no" >> /etc/ssh/sshd_config && \
     echo "PasswordAuthentication no" >> /etc/ssh/sshd_config && \
-    echo "StrictHostKeyChecking no" >> /etc/ssh/ssh_config
+    echo "StrictHostKeyChecking no" >> /etc/ssh/ssh_config \
+COPY ssh /ssh/
 
 RUN set -eux && \
 	grep -q '/usr/share/locale' /etc/dpkg/dpkg.cfg.d/docker && \
diff --git a/ssh/authorized_keys b/ssh/authorized_keys
new file mode 100644
index 0000000..8f1fa7f
--- /dev/null
+++ b/ssh/authorized_keys
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILfsb4w8ZYhu/A1HFR/e59WpbKxejE8DkbdCpj6y/mbO postgres docker swarm
\ No newline at end of file
diff --git a/ssh/id_ed25519 b/ssh/id_ed25519
new file mode 100644
index 0000000..2f40cc8
--- /dev/null
+++ b/ssh/id_ed25519
@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACC37G+MPGWIbvwNRxUf3ufVqWysXoxPA5G3QqY+sv5mzgAAAJgP2LF4D9ix
+eAAAAAtzc2gtZWQyNTUxOQAAACC37G+MPGWIbvwNRxUf3ufVqWysXoxPA5G3QqY+sv5mzg
+AAAEBhVUtZmAbot+VXJpY/IueHrCQeTDgClUTCepMJa1mqZbfsb4w8ZYhu/A1HFR/e59Wp
+bKxejE8DkbdCpj6y/mbOAAAAFXBvc3RncmVzIGRvY2tlciBzd2FybQ==
+-----END OPENSSH PRIVATE KEY-----