test for multistage build

.drone.yml

@@ -1,37 +1,12 @@
 kind: pipeline
 name: meshviewer build
 
-clone:
-  depth: 50
-
 steps:
-# - name: clone git
-#   image: docker:git
-#   commands:
-#   - git submodule update --recursive --init
-
-- name: build on node 12
-  image: node:12.12.0-stretch
-  commands:
-  - node --version
-  - npm --version
-  - yarn --version
-  - pwd
-  - ls -alh
-  - npm i gulp-cli -g
-  - yarn
-  - gulp
-
-# - name: backup-old-firmware
-#   image: appleboy/drone-ssh
-#   settings:
-#     host: 46.4.138.183
-#     username: fwupload
-#     key:
-#       from_secret: ssh-update
-#     port: 22
-#     command_timeout: 120m
-#     script:
-#       - ./rsync-backup.sh
-#       - rm -rf /srv/fwuploads/troisdorf/*
+- name: docker  
+  image: plugins/docker
+  settings:
+    repo: fftdf/meshviewer
+    target: meshviewer
+    username: from_secret: docker_username
+    password: from_secret: docker_password
 

Dockerfile

@@ -0,0 +1,19 @@
+# builder
+FROM node:12.12.0-stretch as builder
+
+# show versions
+RUN node --version && npm --version && yarn --version
+
+# install gulp
+RUN npm i gulp-cli -g
+
+# run yarn for prerequisits
+RUN yarn
+
+# run gulp to build app
+RUN gulp
+
+
+# build docker container
+FROM nginx:1.17.6-alpine as meshviewer
+COPY --from=builder /drone/src/build /usr/share/nginx/html/