(fix): workflow debugging

.forgejo/workflows/release.yml

@@ -40,16 +40,36 @@ jobs:
         run: |
           set -eu
 
-          export DOCKER_CONFIG="$(mktemp -d)"
-          trap 'rm -rf "$DOCKER_CONFIG"' EXIT
+          export DOCKER_CONFIG="$PWD/.docker"
+          rm -rf "$DOCKER_CONFIG"
+          mkdir -p "$DOCKER_CONFIG"
 
           DOCKER_USER="$(printf '%s' "$DOCKER_USER" | tr -d '\r\n')"
           DOCKER_PASSWD="$(printf '%s' "$DOCKER_PASSWD" | tr -d '\r\n')"
 
-          printf '%s' "$DOCKER_PASSWD" | docker login docker.io --username "$DOCKER_USER" --password-stdin
+          if [ -z "$DOCKER_USER" ]; then
+            echo "DOCKER_USER secret is empty"
+            exit 1
+          fi
+
+          if [ -z "$DOCKER_PASSWD" ]; then
+            echo "DOCKER_PASSWD secret is empty"
+            exit 1
+          fi
+
+          case "$DOCKER_USER" in
+            *:*)
+              echo "DOCKER_USER must be only the Docker Hub username, not username:token"
+              exit 1
+              ;;
+          esac
+
+          printf '%s' "$DOCKER_PASSWD" | docker login https://index.docker.io/v1/ --username "$DOCKER_USER" --password-stdin
 
       - name: Build & Push
         run: |
+          export DOCKER_CONFIG="$PWD/.docker"
+
           docker build -f dockerfile -t tensamin/iota:latest .
           docker push tensamin/iota:latest