Eclipse 中發佈 SpringBoot 鏡像到docker服務器

Eclipse中開發SpringBoot持續集成docker

Docker環境

操做系統

[sho-gxj@DockerHost0 ~]$ cat /etc/issue
Ubuntu 16.04 LTS \n \l

docker安裝

參考docker官網

docker配置

[sho-gxj@DockerHost0 ~]$ docker info
Containers: 5
 Running: 1
 Paused: 0
 Stopped: 4
Images: 12
Server Version: 18.06.1-ce
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 45
 Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e
runc version: 69663f0bd4b60df09991c08812a60108003fa340
init version: fec3683
Security Options:
 apparmor
 seccomp
  Profile: default
Kernel Version: 4.4.0-21-generic
Operating System: Ubuntu 16.04 LTS
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 1.954GiB
Name: DockerHost0
ID: 3HOO:AGZQ:IH2K:6BCT:GP4K:C22W:RHAW:OQEK:T6VJ:M2JN:GY3T:QGAZ
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
 provider=generic
Experimental: false
Cluster Store: consul://192.168.137.234:8500
Cluster Advertise: 192.168.137.234:2376
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false

WARNING: No swap limit support

### docker須要開啓容許遠程鏈接，這裏沒有啓用TLS（若須要啓用遠程鏈接TLS，可參考網上其餘博文）
# cat /etc/systemd/system/docker.service.d/10-machine.conf
[Service]
ExecStart=
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2376 -H unix:///var/run/docker.sock --storage-driver aufs --label provider=generic --cluster-store=consul://192.168.137.234:8500 --cluster-advertise=enp0s3:2376
#ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2376 -H unix:///var/run/docker.sock --storage-driver aufs --tlsverify --tlscacert /etc/docker/ca.pem --tlscert /etc/docker/server.pem --tlskey /etc/docker/server-key.pem --label provider=generic --cluster-store=consul://192.168.137.234:8500 --cluster-advertise=enp0s3:2376
Environment=
Environment=

測試遠程鏈接docker

Client

sho-gxj@DockerHost1:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 08:00:27:2b:80:31 brd ff:ff:ff:ff:ff:ff
    inet 192.168.137.235/24 brd 192.168.137.255 scope global enp0s3
       valid_lft forever preferred_lft forever
    inet6 fe80::a00:27ff:fe2b:8031/64 scope link
       valid_lft forever preferred_lft forever
	   
sho-gxj@DockerHost1:~$ docker -H 192.168.137.234:2376 images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
python              3.6-alpine          449d3495be0e        2 months ago        75.5MB
redis               alpine              08bef618c30a        3 months ago        28.7MB
busybox             latest              e1ddd7948a1c        3 months ago        1.16MB
progrium/consul     latest              09ea64205e55        3 years ago         69.4MB

Eclipse配置SpringBoot環境

參考官方文檔，本文使用maven工具管理項目。

本文demo代碼

git clone git@gitee.com:podboq/springboot4docker.git

pom.xml 增長 docker maven 插件

<plugin>
	<groupId>com.spotify</groupId>
	<artifactId>docker-maven-plugin</artifactId>
	<version>1.0.0</version>
	<configuration>
		<imageName>${docker.image.prefix}/${project.artifactId}</imageName>
		<dockerDirectory>${project.basedir}/src/main/docker</dockerDirectory>
		<resources>
			<resource>
				<targetPath>/</targetPath>
				<directory>${project.build.directory}</directory>
				<include>${project.build.finalName}.jar</include>
			</resource>
		</resources>
	</configuration>
</plugin>

eclipse運行配置

Main: package docker:build -DskipTests
Environment: DOCKER_HOST tcp://192.168.137.234:2376

以下圖：

其中，Environment也能夠放在pom.xml中指定：

或者配置本地環境變量（不作演示）。

另，注意 Dockerfile 須要放到<dockerDirectory>目錄中：

FROM openjdk:8-jdk-alpine
VOLUME /tmp
COPY springboot4docker-0.0.1-SNAPSHOT.jar /tmp/app.jar
ENTRYPOINT ["java","-jar","/tmp/app.jar"]

運行遇到的問題

1) jdk以及maven版本問題，按照官方要求便可。

2) run報錯以下

[INFO] Building image springboot/springboot4docker
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 35.189 s
[INFO] Finished at: 2018-11-12T15:45:30+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.spotify:docker-maven-plugin:1.0.0:build (default-cli) on project springboot4docker: Exception caught: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.client.ClientProtocolException: The server failed to respond with a valid HTTP response -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

緣由：Docker服務器未設置容許運行遠程鏈接或開啓了TLS。

運行

build成功後，能夠在docker服務器看到最新的image:

[sho-gxj@DockerHost0 ~]$ docker images
REPOSITORY                     TAG                 IMAGE ID            CREATED             SIZE
springboot/springboot4docker   latest              e4577e3fa73b        16 hours ago        119MB
openjdk                        8-jdk-alpine        97bc1352afde        2 weeks ago         103MB
python                         3.6-alpine          449d3495be0e        2 months ago        75.5MB
redis                          alpine              08bef618c30a        3 months ago        28.7MB
busybox                        latest              e1ddd7948a1c        3 months ago        1.16MB
progrium/consul                latest              09ea64205e55        3 years ago         69.4MB

run一個容器測試：