👷 push on docker hub

packages/action/Dockerfile

@@ -0,0 +1,13 @@
+FROM node:14-slim
+
+RUN    apt-get update \
+    && apt-get install -y --no-install-recommends gifsicle graphicsmagick \
+    && rm -rf /var/lib/apt/lists/* 
+
+WORKDIR /github/snk
+
+RUN     npm install canvas@2.6.1
+
+COPY    dist /github/snk/
+
+CMD    ["node", "/github/snk/index.js"]

packages/action/package.json

@@ -10,7 +10,7 @@
     "@zeit/ncc": "0.22.3"
   },
   "scripts": {
-    "build": "ncc build ./index.ts --out dist",
+    "build": "ncc build --external canvas --out dist ./index.ts ",
     "dev": "ncc run __tests__/dev.ts --quiet | tail -n +2 > out.gif "
   }
 }