ci: Jenkins pipeline + Gitea registry CI/CD 설정

- Jenkinsfile 추가: Declarative Pipeline으로 빌드/push/cleanup 단계 구성
- docker-compose.yml 수정: build: . → Gitea Container Registry 이미지 참조

Made-with: Cursor

Jenkinsfile

@@ -0,0 +1,54 @@
+pipeline {
+    agent any
+
+    environment {
+        REGISTRY      = '10.1.10.28:3000'
+        IMAGE_NAME    = 'gihyeon/cointrader'
+        IMAGE_TAG     = "${env.BUILD_NUMBER}"
+        FULL_IMAGE    = "${REGISTRY}/${IMAGE_NAME}:${IMAGE_TAG}"
+        LATEST_IMAGE  = "${REGISTRY}/${IMAGE_NAME}:latest"
+        GITEA_CREDS   = credentials('gitea-registry-credentials')
+    }
+
+    stages {
+        stage('Checkout') {
+            steps {
+                checkout scm
+            }
+        }
+
+        stage('Build Image') {
+            steps {
+                sh "docker build -t ${FULL_IMAGE} -t ${LATEST_IMAGE} ."
+            }
+        }
+
+        stage('Push to Gitea Registry') {
+            steps {
+                sh """
+                    echo ${GITEA_CREDS_PSW} | docker login ${REGISTRY} -u ${GITEA_CREDS_USR} --password-stdin
+                    docker push ${FULL_IMAGE}
+                    docker push ${LATEST_IMAGE}
+                """
+            }
+        }
+
+        stage('Cleanup') {
+            steps {
+                sh """
+                    docker rmi ${FULL_IMAGE} || true
+                    docker rmi ${LATEST_IMAGE} || true
+                """
+            }
+        }
+    }
+
+    post {
+        success {
+            echo "Build #${env.BUILD_NUMBER} pushed: ${FULL_IMAGE}"
+        }
+        failure {
+            echo "Build #${env.BUILD_NUMBER} FAILED"
+        }
+    }
+}

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   cointrader:
-    build: .
+    image: 10.1.10.28:3000/gihyeon/cointrader:latest
     container_name: cointrader
     restart: unless-stopped
     env_file: