Let's try to use dind

.drone.yml

@@ -4,16 +4,31 @@ name: image building
 
 steps:
 - name: build&push
-  image: plugins/docker
-  settings:
+  image: docker:20.10.10-dind
+  environment:
     username: robot$library+droneci
     password: 
       from_secret: repo_password
     repo: harbor.hq.rosti.cz/library/builder
-    registry: harbor.hq.rosti.cz
-    tags:
-    - 35
-    - latest
+    tag: 35
+  commands:
+    - echo "$password" | podman login -u $username --password-stdin harbor.hq.rosti.cz
+    - podman build -t $repo:$tag .
+    - podman tag $repo:$tag $repo:latest
+    - podman push $repo:$tag
+    - podman push $repo:latest
+
+# - name: build&push
+#   image: plugins/docker
+#   settings:
+#     username: robot$library+droneci
+#     password: 
+#       from_secret: repo_password
+#     repo: harbor.hq.rosti.cz/library/builder
+#     registry: harbor.hq.rosti.cz
+#     tags:
+#     - 35
+#     - latest
 
 # - name: build&push
 #   image: harbor.hq.rosti.cz/library/builder:35