ci: SSH host key accept-new (drop SSH_KNOWN_HOSTS requirement)

.gitea/workflows/deploy.yml

@@ -12,7 +12,9 @@
 #   DEPLOY_HOST      - server hostname/IP that Caddy runs on (e.g. lilsus.fun)
 #   DEPLOY_USER      - ssh user with write access to DEPLOY_PATH
 #   DEPLOY_PATH      - base web root, e.g. /srv/www   (brand goes to <path>/<brand>)
-#   SSH_KNOWN_HOSTS  - output of `ssh-keyscan -H <DEPLOY_HOST>` (pins the host key)
+# The server's SSH host key is trusted on first connect (accept-new) and pinned
+# after, so no SSH_KNOWN_HOSTS secret is needed. For strict pinning instead, add
+# a SSH_KNOWN_HOSTS secret and change accept-new -> yes in the deploy step.
 # OPTIONAL Gitea variables (Settings → Actions → Variables):
 #   TEMPLATE_REPO    - clone URL of the template repo
 #                      (default: https://git.lilsus.fun/lilsus/igaming-template.git)
@@ -99,15 +101,16 @@ jobs:
           cd "$TEMPLATE_DIR"
           if [ -f package-lock.json ]; then npm ci --no-audit --no-fund; else npm install --no-audit --no-fund; fi
 
-      # --- 5. Prepare SSH (key + known_hosts) for rsync deploy. ---
+      # --- 5. Prepare the SSH deploy key for rsync. Host key is trusted on
+      #        first connect and pinned thereafter (StrictHostKeyChecking=accept-new
+      #        in the deploy step), so no SSH_KNOWN_HOSTS secret is required. ---
       - name: Configure SSH
         run: |
           set -euo pipefail
           mkdir -p "$HOME/.ssh" && chmod 700 "$HOME/.ssh"
           printf '%s\n' "${{ secrets.DEPLOY_SSH_KEY }}" > "$HOME/.ssh/deploy_key"
           chmod 600 "$HOME/.ssh/deploy_key"
-          printf '%s\n' "${{ secrets.SSH_KNOWN_HOSTS }}" > "$HOME/.ssh/known_hosts"
-          chmod 644 "$HOME/.ssh/known_hosts"
+          touch "$HOME/.ssh/known_hosts" && chmod 644 "$HOME/.ssh/known_hosts"
 
       # --- 6. Build every brand and deploy it to <brand>.<SITE_TLD>. ---
       - name: Build & deploy each brand
@@ -119,7 +122,7 @@ jobs:
           [ -n "$DEPLOY_HOST" ] && [ -n "$DEPLOY_USER" ] && [ -n "$DEPLOY_PATH" ] \
             || { echo "Missing DEPLOY_HOST/USER/PATH secrets"; exit 1; }
 
-          SSH_OPTS="-i $HOME/.ssh/deploy_key -o UserKnownHostsFile=$HOME/.ssh/known_hosts -o StrictHostKeyChecking=yes"
+          SSH_OPTS="-i $HOME/.ssh/deploy_key -o UserKnownHostsFile=$HOME/.ssh/known_hosts -o StrictHostKeyChecking=accept-new"
 
           for BRAND_PATH in "$CONTENT_DIR"/repo/*/; do
             BRAND="$(basename "$BRAND_PATH")"