[系统运维]Docker - Kubernetes

一、安装docker：

• https://blog.csdn.net/oJueQiang123456/article/details/80481217

二、安装docker私服

# 拉取镜像
docker pull registry

# 运行registry
docker run -d -p 5000:5000 -v /Users/chenfenli/Bin/kubernetes/docker-registry:/var/lib/registry registry

# 查看容器
MacBook-Air:kubernetes chenfenli$ docker ps
CONTAINER ID   IMAGE                  COMMAND                  CREATED          STATUS          PORTS                                       NAMES
a89831f936f3   registry               "/entrypoint.sh /etc…"   31 seconds ago   Up 10 seconds   0.0.0.0:5000->5000/tcp, :::5000->5000/tcp   crazy_williams

访问地址：http://127.0.01:5000/v2/_catalog

三、使用Dockerfile创建镜像

• 使用maven工具创建docker-demo项目，yml：

server:
  port: 9010
  servlet:
    context-path: /

• 创建LoginController

@RestController
@RequestMapping("/login/")
public class LoginController {

    @RequestMapping("to_login")
    public Object toLogin(String username, String password) {
        return "username: " + username + "     password: " + password;
    }
}

• dockerfile-maven-plugin 和 Dockerfile：Dockerfile和pom在同级目录下

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>dockerfile-maven-plugin</artifactId>
                <version>1.4.10</version>
                <executions>
                    <execution>
                        <id>default</id>
                        <goals>
                            <goal>build</goal>
                            <goal>push</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <repository>127.0.0.1:5000/${project.artifactId}</repository>
                    <tag>${project.version}</tag>
                    <buildArgs>
                        <JAR_FILE>target/${project.build.finalName}.jar</JAR_FILE>
                    </buildArgs>
                </configuration>
            </plugin>
        </plugins>
    </build>

FROM openjdk:8u191-jre-alpine3.9
EXPOSE 9010
ARG JAR_FILE
ADD ${JAR_FILE} /app.jar
ENTRYPOINT ["java", "-jar","/app.jar"]

• 查看私服，已有docker-demo镜像在私服上

• 构建镜像，并推送到docker镜像上

MacBook-Air:docker-demo-admin chenfenli$ mvn clean package
...
Downloaded: http://jcenter.bintray.com/com/fasterxml/jackson/module/jackson-module-jaxb-annotations/2.9.6/jackson-module-jaxb-annotations-2.9.6.jar (0 B at 0.0 KB/sec)
[INFO] dockerfile: null
[INFO] contextDirectory: /Users/chenfenli/Documents/work_idea/docker-demo/docker-demo-admin
[INFO] Building Docker context /Users/chenfenli/Documents/work_idea/docker-demo/docker-demo-admin
[INFO] Path(dockerfile): null
[INFO] Path(contextDirectory): /Users/chenfenli/Documents/work_idea/docker-demo/docker-demo-admin
[INFO]
[INFO] Image will be built as 127.0.0.1:5000/docker-demo-admin:1.0
[INFO]
[INFO] Step 1/5 : FROM openjdk:8u191-jre-alpine3.9
[INFO]
[INFO] Pulling from library/openjdk
[INFO] Digest: sha256:f7ea122d42799223ea01231d2661fd95a2695d6085ba57d6378b68463247011d
[INFO] Status: Image is up to date for openjdk:8u191-jre-alpine3.9
[INFO]  ---> b76bbdb2809f
[INFO] Step 2/5 : EXPOSE 9010
[INFO]
[INFO]  ---> Running in 67ca0a61f847
[INFO] Removing intermediate container 67ca0a61f847
[INFO]  ---> 5bab4acbe8e2
[INFO] Step 3/5 : ARG JAR_FILE
[INFO]
[INFO]  ---> Running in 4f705daf7078
[INFO] Removing intermediate container 4f705daf7078
[INFO]  ---> 9975bf01dcf5
[INFO] Step 4/5 : ADD ${JAR_FILE} /app.jar
[INFO]
[INFO]  ---> 573f19dd6335
[INFO] Step 5/5 : ENTRYPOINT ["java", "-jar","/app.jar"]
[INFO]
[INFO]  ---> Running in 3efb12889cec
[INFO] Removing intermediate container 3efb12889cec
[INFO]  ---> 4fdd2eb136b2
[INFO] Successfully built 4fdd2eb136b2
[INFO] Successfully tagged 127.0.0.1:5000/docker-demo-admin:1.0
[INFO]
[INFO] Detected build of image with id 4fdd2eb136b2
[INFO] Building jar: /Users/chenfenli/Documents/work_idea/docker-demo/docker-demo-admin/target/docker-demo-admin-1.0-docker-info.jar
[INFO] Successfully built 127.0.0.1:5000/docker-demo-admin:1.0
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:02.816s
[INFO] Finished at: Mon Jul 12 23:24:49 CST 2021
[INFO] Final Memory: 37M/312M
[INFO] ------------------------------------------------------------------------

MacBook-Air:docker-demo-admin chenfenli$ docker images
REPOSITORY                                                       TAG                                                     IMAGE ID       CREATED          SIZE
127.0.0.1:5000/docker-demo-admin                                 1.0                                                     4fdd2eb136b2   39 seconds ago   102MB
127.0.0.1:5000/docker-demo                                       1.0                                                     6a94096cc5a4   24 hours ago     102MB

四、将镜像推送到私服

MacBook-Air:docker-demo-admin chenfenli$ docker push 127.0.0.1:5000/docker-demo-admin:1.0
The push refers to repository [127.0.0.1:5000/docker-demo-admin]
3fe7acaa1fff: Pushed
925523484e00: Mounted from docker-demo
344fb4b275b7: Mounted from docker-demo
bcf2f368fe23: Mounted from docker-demo
1.0: digest: sha256:0cd2117d6817e2df5d19a343b702c760d8932f59eb1e0912639102d6d537d77d size: 1159
MacBook-Air:docker-demo-admin chenfenli$

• 查看版本：