Config 모듈 추가

config/build.gradle

@@ -0,0 +1,14 @@
+ext {
+    set('springCloudVersion', "2021.0.1")
+}
+
+dependencies {
+    implementation 'org.springframework.cloud:spring-cloud-config-server'
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+dependencyManagement {
+    imports {
+        mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
+    }
+}

config/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

config/gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

config/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

config/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'config'

config/src/main/java/com/roy/springcloud/config/ConfigApplication.java

@@ -0,0 +1,15 @@
+package com.roy.springcloud.config;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.config.server.EnableConfigServer;
+
+@EnableConfigServer
+@SpringBootApplication
+public class ConfigApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(ConfigApplication.class, args);
+    }
+
+}

config/src/main/resources/application.yml

@@ -0,0 +1,11 @@
+server:
+  port: 8888
+
+spring:
+  application:
+    name: config-service
+  cloud:
+    config:
+      server:
+        git:
+          uri: file://${user.home}/Desktop/my-project/spring-cloud-config

config/src/test/java/com/roy/springcloud/config/ConfigApplicationTests.java

@@ -0,0 +1,13 @@
+package com.roy.springcloud.config;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ConfigApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}

document/config/config.md

@@ -0,0 +1,89 @@
+이번 장에서는 Spring Cloud Config 서버에 대해서 알아본다.
+모든 소스 코드는 [깃허브 (링크)](https://github.com/roy-zz/spring-cloud) 에 올려두었다.
+
+---
+
+### Spring Cloud Config
+
+Spring Cloud Config 서버란 분산 되어있는 서버, 클라이언트의 구성에 필요한 설정 정보(예. application.yml)를 외부 시스템에서 관리하는 것을 의미한다.
+하나의 중앙화 된 저장소에서 구성요소를 관리할 수 있으며 각각의 마이크로서비스를 다시 빌드하지 않고 바로 적용이 가능하다.
+애플리케이션의 배포 파이프라인을 통해서 운영, 개발, QA등 환경에 맞는 구성 정보를 사용할 수 있다.
+
+![](image/spring-cloud-config-image.png)
+
+Config 서버가 참고하는 설정 파일의 위치는 크게 Local Git Repository, Remote Git Repository, Native File Repository 세 가지가 있다.
+Local Git Repository 부터 하나씩 알아보도록 한다.
+
+### 공통 사항
+
+세가지 방법을 알아보기 전에 가장 기본이 되는 config 서버를 먼저 생성한다.
+
+1. 멀티 모듈 구조라면 config 모듈을 생성하고 그렇지 않다면 새로운 config 프로젝트를 생성한다.
+
+[멀티 모듈 구조](https://imprint.tistory.com/206?category=1069520) 와 [스프링부트 프로젝트 생성](https://imprint.tistory.com/3?category=1067500) 은 이전에 필자가 올려두었던 글을 참고하여 생성한다.
+
+2. Config 서버 관련 의존성을 추가한다.
+
+build.gradle에 config 서버 관련 의존성이 추가되어 있어야 한다.
+
+```bash
+implementation 'org.springframework.cloud:spring-cloud-config-server'
+```
+
+3. main 메서드가 있는 클래스를 수정한다.
+
+main 메서드가 있는 클래스에 아래와 같이 @EnableConfigServer 애노테이션을 붙여준다.
+
+```java
+@EnableConfigServer
+@SpringBootApplication
+public class ConfigApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(ConfigApplication.class, args);
+    }
+}
+```
+
+4. application.yml 파일을 수정한다.
+
+yaml 파일을 아래와 같이 수정한다.
+uri를 입력하는 부분에 ${user.home} 부분은 터미널에서 pwd를 입력하였을 때 ~~~/Desktop/ 과 같이 출력될 텐데 Desktop 이전 부분을 의미한다.
+
+```yaml
+server:
+  port: 8888
+spring:
+  application:
+    name: config-service
+  cloud:
+    config:
+      server:
+        git:
+          uri: file://${user.home}/Desktop/my-project/spring-cloud-config
+```
+
+설정 파일이 아직 입력되지 않았기 때문에 정상작동은 확인하기 힘들다.
+Local Git Repository를 활용하는 방법을 알아볼 때 정상적으로 설치되었는지 확인해보도록 한다.
+
+---
+
+### Local Git Repository
+
+1. 로컬 PC에 Git 저장소를 만든다. (다음 단계를 위하여 미리 원격 저장소도 연동 해두는 것을 추천한다.)
+
+2. 저장소에 디렉토리 구조를 잡는다.
+
+3. 유저 서비스의 application.yml 파일의 토큰 관련 설정을 설정 파일 저장소로 옮긴다.
+
+아래의 사진을 보면 좌측과 같이 서비스 별로 각각 세 개(default, develop, product)의 환경에 맞는 yml 파일을 생성하였다.
+먼저 유저 서비스의 기본 yml인 application.yml 파일에 토큰 관련 정보와 게이트웨이 정보를 입력하였다.
+
+![](image/spring-cloud-config-image.png)
+
+
+
+---
+
+**참고한 강의:** 
+
+- https://www.inflearn.com/course/%EC%8A%A4%ED%94%84%EB%A7%81-%ED%81%B4%EB%9D%BC%EC%9A%B0%EB%93%9C-%EB%A7%88%EC%9D%B4%ED%81%AC%EB%A1%9C%EC%84%9C%EB%B9%84%EC%8A%A4

document/config/config.svg

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="1px"
+     height="1px" viewBox="-0.5 -0.5 1 1"
+     content="&lt;mxfile host=&quot;app.diagrams.net&quot; modified=&quot;2021-04-15T16:58:14.004Z&quot; agent=&quot;5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36&quot; etag=&quot;9hHl-fft3fX4wfAVMn7f&quot; version=&quot;14.6.0&quot; type=&quot;device&quot;&gt;&lt;diagram id=&quot;23iRSUPoRavnBvh4doch&quot; name=&quot;Page-1&quot;&gt;dZHBEoIgEIafhjtCZZ3N6tLJQ2dGNmEGXQdptJ4+HTBjrJk97H77Lz8shGf1cLaiVVeUYAijciD8SBhLNoyRKah8epLSrQeV1TKIFlDoFwRIA31oCV0kdIjG6TaGJTYNlC5iwlrsY9kdTezaigpWoCiFWdOblk55umfpwi+gKzU7J7uD79RiFoeXdEpI7L8QzwnPLKLzWT1kYKblzXvxc6c/3c/FLDTux8CYLGePRfRDPH8D&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g/>
+</svg>

settings.gradle

@@ -6,4 +6,5 @@ include("test-server2")
 include("user-service")
 include("order-service")
 include("catalog-service")
+include("config")
 include("util")

user-service/src/main/resources/application.yml

@@ -23,10 +23,6 @@ eureka:
     service-url:
       defaultZone: http://localhost:8761/eureka
 
-token:
-  expiration_time: 864000000
-  secret: user_token
-
 greeting:
   message: Welcome to the Simple E-Commerce(User Service).