Fix dockerfile (#208)

* feat: docker file

.github/workflows/docker-image.yml

@@ -4,31 +4,7 @@ on:
   workflow_dispatch:
 
 jobs:
-
-  build:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-
-    steps:
-      - uses: actions/checkout@v3
-      - name: Set up JDK 11
-        uses: actions/setup-java@v3
-        with:
-          java-version: '11'
-          distribution: 'temurin'
-          server-id: ossrh # Value of the distributionManagement/repository/id field of the pom.xml
-          server-username: MAVEN_USERNAME # env variable for username in deploy
-          server-password: MAVEN_CENTRAL_TOKEN # env variable for token in deploy
-          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }} # Value of the GPG private key to import
-          gpg-passphrase: MAVEN_GPG_PASSPHRASE # env variable for GPG private key passphrase
-
-      - name: Build with Maven
-        run: mvn -B -ntp clean package -DskipTests=true -Pjar
-
   docker:
-    needs: build
     runs-on: ubuntu-latest
     steps:
       - name: Checkout

Dockerfile

@@ -1,8 +1,10 @@
-FROM tomcat:9.0-jdk8-openjdk
-
-ARG WAR_FILE=./target/arex-schedule-web-api.war
-ADD $WAR_FILE /usr/local/tomcat/webapps/
+FROM maven:3-openjdk-8-slim as builder
+COPY . /usr/src/app/
+WORKDIR /usr/src/app/arex-schedule-web-api
+RUN mvn clean package -DskipTests
 
+FROM tomcat:9.0-jdk8-openjdk
+COPY --from=builder /usr/src/app/arex-schedule-web-api/target/arex-schedule-web-api.war /usr/local/tomcat/webapps/arex-schedule-web-api.war
 WORKDIR /usr/local/tomcat/conf
 RUN sed -i 'N;152a\\t<Context path="" docBase="arex-schedule-web-api.war" reloadable="true" />' server.xml