Docker启动优化：去掉CMD盲等sleep，改由healthcheck+depends_on保证依赖就绪

docker-compose-cloud.yml

@@ -19,6 +19,12 @@ services:
       --default-authentication-plugin=caching_sha2_password
     ports:
       - 13306:3306
+    healthcheck:
+      test: ["CMD-SHELL", "mysqladmin ping -h127.0.0.1 -uroot -proot --silent"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 60s
     networks:
       - jeecg-boot
 
@@ -29,6 +35,11 @@ services:
     restart: always
     hostname: jeecg-boot-redis
     container_name: jeecg-boot-redis
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
     networks:
       - jeecg-boot
 
@@ -39,6 +50,10 @@ services:
        - 9080:9080
      container_name: jeecg-boot-xxljob
      hostname: jeecg-boot-xxljob
+     # xxl_job调度表存在mysql中（db/tables_xxl_job.sql），需等mysql就绪
+     depends_on:
+       jeecg-boot-mysql:
+         condition: service_healthy
      networks:
        - jeecg-boot
        
@@ -50,15 +65,26 @@ services:
       - 8848:8848
       - 18080:18080
     container_name: jeecg-boot-nacos
+    # nacos配置库存在外部mysql中（db/tables_nacos.sql），需等mysql就绪
     depends_on:
-      - jeecg-boot-mysql
+      jeecg-boot-mysql:
+        condition: service_healthy
     hostname: jeecg-boot-nacos
+    # 镜像内无curl，用sh内建/dev/tcp探测8848端口
+    healthcheck:
+      test: ["CMD-SHELL", "(echo > /dev/tcp/127.0.0.1/8848) 2>/dev/null"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 60s
     networks:
       - jeecg-boot
 
   jeecg-boot-system:
     depends_on:
-      - jeecg-boot-nacos
+      # 等nacos就绪后再启动应用（应用Dockerfile已去掉sleep，直接启动）
+      jeecg-boot-nacos:
+        condition: service_healthy
     build:
       context: ./jeecg-boot/jeecg-server-cloud/jeecg-system-cloud-start
     container_name: jeecg-system-cloud-start
@@ -72,7 +98,9 @@ services:
 
   jeecg-boot-demo:
     depends_on:
-      - jeecg-boot-nacos
+      # 等nacos就绪后再启动应用（应用Dockerfile已去掉sleep，直接启动）
+      jeecg-boot-nacos:
+        condition: service_healthy
     build:
       context: ./jeecg-boot/jeecg-server-cloud/jeecg-demo-cloud-start
     container_name: jeecg-demo-start

docker-compose.yml

@@ -19,6 +19,12 @@ services:
       --default-authentication-plugin=caching_sha2_password
     ports:
       - 13306:3306
+    healthcheck:
+      test: ["CMD-SHELL", "mysqladmin ping -h127.0.0.1 -uroot -proot --silent"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 60s
     networks:
       - jeecg-boot
 
@@ -29,6 +35,11 @@ services:
     restart: always
     hostname: jeecg-boot-redis
     container_name: jeecg-boot-redis
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
     networks:
       - jeecg-boot
 
@@ -37,8 +48,11 @@ services:
       context: ./jeecg-boot/jeecg-module-system/jeecg-system-start
     restart: on-failure
     depends_on:
-      - jeecg-boot-mysql
+      # 等依赖服务healthcheck通过后再启动应用（应用Dockerfile已去掉sleep，直接启动）
-      - jeecg-boot-redis
+      jeecg-boot-mysql:
+        condition: service_healthy
+      jeecg-boot-redis:
+        condition: service_healthy
     container_name: jeecg-boot-system
     image: jeecg-boot-system
     hostname: jeecg-boot-system

jeecg-boot/docker-compose.yml

@@ -19,6 +19,12 @@ services:
       --default-authentication-plugin=caching_sha2_password
     ports:
       - 13306:3306
+    healthcheck:
+      test: ["CMD-SHELL", "mysqladmin ping -h127.0.0.1 -uroot -proot --silent"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 60s
     networks:
       - jeecg-boot
 
@@ -29,6 +35,11 @@ services:
     restart: always
     hostname: jeecg-boot-redis
     container_name: jeecg-boot-redis
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
     networks:
       - jeecg-boot
 
@@ -65,8 +76,11 @@ services:
     restart: on-failure
     mac_address: 02:42:ac:11:00:02
     depends_on:
-      - jeecg-boot-mysql
+      # 等依赖服务healthcheck通过后再启动应用（应用Dockerfile已去掉sleep，直接启动）
-      - jeecg-boot-redis
+      jeecg-boot-mysql:
+        condition: service_healthy
+      jeecg-boot-redis:
+        condition: service_healthy
     container_name: jeecg-boot-system
     image: jeecg-boot-system
     hostname: jeecg-boot-system

jeecg-boot/jeecg-module-system/jeecg-system-start/Dockerfile

@@ -25,5 +25,5 @@ ADD ./target/jeecg-system-start-3.9.5.jar ./
 
 RUN mkdir -p /jeecg-boot/config
 
-# 【PR#9345】编码已通过JAVA_TOOL_OPTIONS设置，CMD改用&&和exec
+# 【PR#9345】编码已通过JAVA_TOOL_OPTIONS设置；去掉sleep 60，容器启动后立即拉起应用（依赖库就绪由docker-compose的healthcheck+depends_on: service_healthy保证）
-CMD sleep 60 && exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-system-start-3.9.5.jar
+CMD exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-system-start-3.9.5.jar

jeecg-boot/jeecg-server-cloud/docker-compose.yml

@@ -18,6 +18,12 @@ services:
       --default-authentication-plugin=caching_sha2_password
     ports:
       - 13306:3306
+    healthcheck:
+      test: ["CMD-SHELL", "mysqladmin ping -h127.0.0.1 -uroot -proot --silent"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 60s
     networks:
       - jeecg-boot
 
@@ -28,6 +34,11 @@ services:
     restart: always
     container_name: jeecg-boot-redis
     hostname: jeecg-boot-redis
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
     networks:
       - jeecg-boot
 
@@ -66,12 +77,25 @@ services:
       - 18080:18080
     container_name: jeecg-boot-nacos
     hostname: jeecg-boot-nacos
+    # nacos配置库存在外部mysql中（db/tables_nacos.sql），需等mysql就绪
+    depends_on:
+      jeecg-boot-mysql:
+        condition: service_healthy
+    # 镜像内无curl，用sh内建/dev/tcp探测8848端口
+    healthcheck:
+      test: ["CMD-SHELL", "(echo > /dev/tcp/127.0.0.1/8848) 2>/dev/null"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 60s
     networks:
       - jeecg-boot
 
   jeecg-boot-system:
     depends_on:
-      - jeecg-boot-nacos
+      # 等nacos就绪后再启动应用（应用Dockerfile已去掉sleep，直接启动）
+      jeecg-boot-nacos:
+        condition: service_healthy
     build:
       context: ./jeecg-system-cloud-start
     container_name: jeecg-system-start
@@ -84,7 +108,9 @@ services:
 
   jeecg-boot-demo:
     depends_on:
-      - jeecg-boot-nacos
+      # 等nacos就绪后再启动应用（应用Dockerfile已去掉sleep，直接启动）
+      jeecg-boot-nacos:
+        condition: service_healthy
     build:
       context: ./jeecg-demo-cloud-start
     container_name: jeecg-demo-start

jeecg-boot/jeecg-server-cloud/jeecg-cloud-gateway/Dockerfile

@@ -22,4 +22,5 @@ EXPOSE 9999
 
 ADD ./target/jeecg-cloud-gateway-3.9.5.jar ./
 
-CMD sleep 100 && exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-cloud-gateway-3.9.5.jar
+# 去掉sleep 100，直接启动（docker-compose下由command覆盖为轮询nacos等system注册后再启动）
+CMD exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-cloud-gateway-3.9.5.jar

jeecg-boot/jeecg-server-cloud/jeecg-cloud-nacos/Dockerfile

@@ -22,4 +22,5 @@ EXPOSE 8848 18080
 
 ADD ./target/jeecg-cloud-nacos-3.9.5.jar ./
 
-CMD sleep 30 && exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-cloud-nacos-3.9.5.jar
+# 去掉sleep 30，容器启动后立即拉起应用（MySQL就绪由docker-compose的healthcheck+depends_on: service_healthy保证）
+CMD exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-cloud-nacos-3.9.5.jar

jeecg-boot/jeecg-server-cloud/jeecg-demo-cloud-start/Dockerfile

@@ -22,4 +22,5 @@ EXPOSE 7002
 
 ADD ./target/jeecg-demo-cloud-start-3.9.5.jar ./
 
-CMD sleep 60 && exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-demo-cloud-start-3.9.5.jar
+# 去掉sleep 60，容器启动后立即拉起应用（Nacos就绪由docker-compose的healthcheck+depends_on: service_healthy保证）
+CMD exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-demo-cloud-start-3.9.5.jar

jeecg-boot/jeecg-server-cloud/jeecg-system-cloud-start/Dockerfile

@@ -22,4 +22,5 @@ EXPOSE 7001
 
 ADD ./target/jeecg-system-cloud-start-3.9.5.jar ./
 
-CMD sleep 60 && exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-system-cloud-start-3.9.5.jar
+# 去掉sleep 60，容器启动后立即拉起应用（Nacos就绪由docker-compose的healthcheck+depends_on: service_healthy保证）
+CMD exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-system-cloud-start-3.9.5.jar

jeecg-boot/jeecg-server-cloud/jeecg-visual/jeecg-cloud-sentinel/Dockerfile

@@ -22,4 +22,5 @@ EXPOSE 8848
 
 ADD ./target/jeecg-cloud-sentinel-3.9.5.jar ./
 
-CMD sleep 5 && exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-cloud-sentinel-3.9.5.jar
+# 去掉sleep 5，直接启动（依赖就绪由docker-compose的healthcheck+depends_on保证）
+CMD exec java -Djava.security.egd=file:/dev/./urandom -jar jeecg-cloud-sentinel-3.9.5.jar