refactor(ci): remove plugin usage

.drone.yml

@@ -8,16 +8,27 @@ trigger:
   - push
 
 steps:
-- name: docker
-  image: plugins/docker
-  settings:
-    registry: registry.grachevko.ru
-    username:
+- name: build & push
+  image: cr.grachevko.ru/docker.io/library/docker:git
+  volumes:
+  - name: docker.sock
+    path: /var/run/docker.sock
+  commands:
+  - docker build -t grachevko/wait-for-it:${DRONE_BUILD_NUMBER} --progress=plain .
+  - echo "$PASSWORD" | docker login -u "$USERNAME" --password-stdin "$REGISTRY"
+  - echo RELEASE.$$(date +'%Y-%m-%dT%H-%M-%SZ' -d @$$(git --no-pager log -1 --format="%ct")) > .release_tag
+  - docker tag grachevko/wait-for-it:${DRONE_BUILD_NUMBER} $REGISTRY/grachevko/wait-for-it:$$(cat .release_tag)
+  - docker tag grachevko/wait-for-it:${DRONE_BUILD_NUMBER} $REGISTRY/grachevko/wait-for-it:latest
+  - docker push $REGISTRY/grachevko/wait-for-it:$$(cat .release_tag)
+  - docker push $REGISTRY/grachevko/wait-for-it:latest
+  - docker rmi --no-prune $REGISTRY/grachevko/wait-for-it:$$(cat .release_tag)
+  environment:
+    USERNAME:
       from_secret: REGISTRY_USERNAME
-    password:
+    PASSWORD:
       from_secret: REGISTRY_PASSWORD
-    repo: grachevko/wait-for-it
-    tags: latest
+    REGISTRY:
+      from_secret: REGISTRY
   when:
     branch:
     - master