ci: debug Host key verification failed error

.drone.yml

@@ -28,17 +28,14 @@ steps:
       PRIVATE_SSH_KEY:
         from_secret: ci_private_ssh_key
       SSH_HOST_KEY: "80.244.242.4 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE7XTCHfX6ta8EtkdOcZLnpdhMmXDfTebVMs4NC8JEPj"
-      # SSH uses HOME from /etc/passwd, not from the environment, so override it
-      SSHOPTS: "-o UserKnownHostsFile=$$HOME/.ssh/known_hosts -i $$HOME/.ssh/id_ed25519 -v"
     commands:
       - mkdir $$HOME/.ssh && chmod 700 $$HOME/.ssh
       - echo "$$PRIVATE_SSH_KEY" > $$HOME/.ssh/id_ed25519 && chmod 600 $$HOME/.ssh/id_ed25519
       - echo "$$SSH_HOST_KEY" > $$HOME/.ssh/known_hosts
-      - export SSHOPTS="$$SSHOPTS"
-      - echo DEBUG env
-      - env
-      - echo DEBUG ls -alh $$HOME/.ssh
-      - ls -alh $$HOME/.ssh
+      # SSH uses HOME from /etc/passwd, not from the environment, so override it
+      - export SSHOPTS="-o UserKnownHostsFile=$$HOME/.ssh/known_hosts -i $$HOME/.ssh/id_ed25519 -v"
+      - echo DEBUG SSHOPTS
+      - echo $$SSHOPTS
       - "echo DEBUG: Using NIX_FLAGS: $$NIX_FLAGS"
       - nix $$NIX_FLAGS develop --command deploy --magic-rollback false --skip-checks --targets '.#host_001_momo_koeln' --ssh-opts="$$SSHOPTS"
 
@@ -166,6 +163,6 @@ volumes:
 
 ---
 kind: signature
-hmac: bab6b28f9246366499ef7914aa84c8868321565330a8923b893f786e6c0db203
+hmac: 6d2495181ae2acd3f3a44d34591ba79315862d22c1e62c580bfba1a4c4fe822a
 
 ...