ci: docker release (#3)

* ci: test docker release action

* ci: change trigger

* chore: lock bundler version

* fix: fix docker push command

* ci: change trigger

* ci: run release only on tag

.github/workflows/release.yml

@@ -0,0 +1,18 @@
+name: Docker Image CI
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build the Docker image
+        run: docker build . --file Dockerfile --tag gotocompany/gate:${{ github.ref_name }}
+      - name: Login to DockerHub
+        run: docker login -u ${{ secrets.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Push Docker image
+        run: docker push gotocompany/gate:${{ github.ref_name }}

Dockerfile

@@ -10,7 +10,7 @@ WORKDIR /app
 COPY Gemfile /app
 COPY Gemfile.lock /app
 
-RUN gem install bundler -v '>= 2.0'
+RUN gem install bundler -v '2.0.2'
 RUN bundle install --without development
 COPY . /app