added docker support

Author: mmaggioni

.dockerignore

@@ -0,0 +1,3 @@
+.gradle
+build
+out

Dockerfile

@@ -0,0 +1,5 @@
+FROM openjdk:8-jdk-alpine
+COPY . /app
+WORKDIR /app
+RUN /app/gradlew -v
+CMD ["/app/gradlew", "bootRun"]

README.md

@@ -1,10 +1,19 @@
-A simple jwt project created with kotlin and spring boot 2. 
+A simple jwt project created with kotlin, spring boot 2 and docker
 
 Login, sign up and a test endpoint to test the jwt created
 
 Spring security is not used
 
-### Structure
+## How to run
+go to the project's root:
+ 
+ docker-compose up
+ 
+or simply
+ 
+ ./gradlew bootRun
+
+## Structure
 
 - UserController: standard rest controller where you can login and sign-up
 - JwtService / UserService: contains logic for jwt and user management

build.gradle

@@ -19,7 +19,6 @@ apply plugin: 'kotlin-spring'
 apply plugin: 'kotlin-jpa'
 apply plugin: 'org.springframework.boot'
 apply plugin: 'io.spring.dependency-management'
-apply plugin: 'war'
 
 group = 'com'
 version = '0.0.1-SNAPSHOT'
@@ -41,6 +40,12 @@ repositories {
  mavenCentral()
 }
 
+configurations {
+ developmentOnly
+ runtimeClasspath {
+ extendsFrom developmentOnly
+ }
+}
 
 dependencies {
  compile('org.springframework.boot:spring-boot-starter-data-jpa')
@@ -54,6 +59,7 @@ dependencies {
  // Uncomment the next line if you want to use RSASSA-PSS (PS256, PS384, PS512) algorithms:
  //'org.bouncycastle:bcprov-jdk15on:1.60',
  'io.jsonwebtoken:jjwt-jackson:0.10.2'
+ developmentOnly("org.springframework.boot:spring-boot-devtools")
  testCompile('org.springframework.boot:spring-boot-starter-test') {
  exclude module: 'junit'
  }

docker-compose.yml

@@ -0,0 +1,10 @@
+version: "3.3"
+
+services:
+ jwt_app:
+ image: kotest
+ build: .
+ volumes:
+ - .:/app
+ ports:
+ - "8080:8080"

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.8.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-all.zip

gradlew

@@ -18,6 +18,7 @@ class AuthFilter(val jwtService: JwtService) : HandlerInterceptor {
 
  return try {
  val authorizationHeader = request.getHeader("Authorization")
+ ?: throw JwtException("Authorization header should not be null")
 
  // throws exceptions if the jwt is not valid
  jwtService.getJwtClaims(authorizationHeader)