Generate the ssh key from secret in CI

Signed-off-by: Noah Knegt <git@noahknegt.com>

.drone.yml

@@ -14,15 +14,18 @@ steps:
     commands:
       - ansible-lint .
 
+  - name: setup ssh key
+    image: alpine:latest
+    commands:
+      - mkdir -p /drone/src/.ssh
+      - echo "$SSH_KEY" > /drone/src/.ssh/id_ed25519
+      - chmod 600 /drone/src/.ssh/id_ed25519
+    environment:
+      SSH_KEY:
+        from_secret: ssh_key
+
   - name: ansible apply
     image: cytopia/ansible:alpine
-    volumes:
-      - name: ssh-keys
-        path: /root/.ssh/
     commands:
-      - ansible-playbook -i inventory/hosts site.yml --private-key /root/.ssh/id_ed25519
+      - ansible-playbook -i inventory/hosts site.yml --private-key /drone/src/.ssh/id_ed25519
 
-volumes:
-  - name: ssh-keys
-    host:
-      path: /home/ansible/.ssh/