fix: Write SSH keys to files before Terraform plan/apply

.gitea/workflows/deploy.yml

@@ -49,13 +49,21 @@ jobs:
         working-directory: terraform
         run: terraform validate
 
+      - name: Setup SSH Keys
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed255
+          echo "${{ secrets.SSH_PUBLIC_KEY }}" > ~/.ssh/id_ed25519.pub
+          chmod 644 ~/.ssh/id_ed25519.pub
+
       - name: Terraform Plan
         id: plan
         working-directory: terraform
         run: |
           terraform plan \
-            -var="ssh_public_key=${{ secrets.SSH_PUBLIC_KEY }}" \
-            -var="ssh_private_key=${{ secrets.SSH_PRIVATE_KEY }}" \
+            -var="ssh_public_key=$HOME/.ssh/id_ed25519.pub" \
+            -var="ssh_private_key=$HOME/.ssh/id_ed25519" \
             -out=tfplan \
             -no-color
         continue-on-error: true
@@ -85,8 +93,8 @@ jobs:
         working-directory: terraform
         run: |
           terraform apply \
-            -var="ssh_public_key=${{ secrets.SSH_PUBLIC_KEY }}" \
-            -var="ssh_private_key=${{ secrets.SSH_PRIVATE_KEY }}" \
+            -var="ssh_public_key=$HOME/.ssh/id_ed25519.pub" \
+            -var="ssh_private_key=$HOME/.ssh/id_ed25519" \
             -auto-approve
 
       - name: Save Terraform Outputs