CI: Release to Spacelift

Author: hamishfor

.github/workflows/release.yaml

@@ -30,6 +30,12 @@ jobs:
         id: import_gpg
         with:
           gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
+
+      - name: Install spacectl
+        uses: spacelift-io/setup-spacectl@main
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@286f3b13b1b49da4ac219696163fb8c1c93e1200 # v6.0.0
         with:
@@ -40,3 +46,13 @@ jobs:
           # GitHub sets the GITHUB_TOKEN secret automatically.
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GPG_FINGERPRINT: ${{ steps.import_gpg.outputs.fingerprint }}
+
+      - name: Release new version to spacelift
+        if: startsWith(github.ref, 'refs/tags/')
+        env:
+          GPG_KEY_ID: ${{ steps.import_gpg.outputs.keyid }}
+          SPACELIFT_API_KEY_ENDPOINT: https://spacelift.ktl.net
+          SPACELIFT_API_KEY_ID: ${{ secrets.SPACELIFT_API_KEY_ID }}
+          SPACELIFT_API_KEY_SECRET: ${{ secrets.SPACELIFT_API_KEY_SECRET }}
+        run:
+          spacectl provider create-version --type=nexus