簡介
通過maven插件，結(jié)合maven命令荐开，實現(xiàn)打包模孩、生成鏡像尖阔、推送到倉庫中心功能。
1榨咐、開啟Docker daemon服務(wù)遠(yuǎn)程訪問
修改配置
- [x] 修改 /etc/docker/daemon.json 文件介却，沒有就創(chuàng)建，文件內(nèi)容如下：
{
"hosts": [
"tcp://0.0.0.0:2376",
"unix:///var/run/docker.sock"
],
"insecure-registries" : ["172.16.1.146"]
}
重啟docker
sudo systemctl daemon-reload
sudo systemctl restart docker
驗證
[root@localhost ~]# docker -H 172.16.1.191:2376 images
REPOSITORY TAG IMAGE ID CREATED SIZE
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171831 063b60635335 25 minutes ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171646 3b8deedff90d 27 minutes ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713091144 aa898d0cbd28 32 minutes ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-2018071308 a91e9e3b0678 About an hour ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713083134 a91e9e3b0678 About an hour ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713080550 db286edbbc18 About an hour ago 727 MB
2块茁、MAVEN配置
此處根據(jù)dockerfile生成鏡像齿坷，
pom.xml中添加插件。
<!-- 生成時間戳 -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.9.1</version>
<executions>
<execution>
<id>timestamp-property</id>
<goals>
<goal>timestamp-property</goal>
</goals>
</execution>
</executions>
<configuration>
<name>current.time</name>
<pattern>yyyyMMddHHmmss</pattern>
<timeZone>GMT+8</timeZone>
</configuration>
</plugin>
<!-- 打包生成鏡像数焊、push鏡像到私有鏡像中心 -->
<plugin>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<version>1.4.0</version>
<executions>
<execution>
<id>default</id><!-- 要綁定到的生命周期的階段 -->
<phase>install</phase><!-- 要綁定到的生命周期的階段 -->
<goals> <!-- 要綁定的插件的目標(biāo) -->
<goal>build</goal>
<goal>push</goal>
</goals>
</execution>
</executions>
<configuration>
<!-- 私有鏡像中心的用戶名 -->
<username>registry</username>
<!-- 私有鏡像中心的密碼 -->
<password>******</password>
<!-- 172.16.1.146：私有鏡像中心地址永淌； wondertek/${project.artifactId}：鏡像名稱-->
<repository>172.16.1.146/wondertek/${project.artifactId}</repository>
<!-- 鏡像版本號 -->
<tag>${project.version}-${current.time}</tag>
<buildArgs>
<!-- 參數(shù)，提供給dockerfile使用 -->
<JAR_FILE>target/docker-test-1.0.0.jar</JAR_FILE>
</buildArgs>
</configuration>
</plugin>
3佩耳、dockerfile配置
官網(wǎng)說明：https://docs.docker.com/develop/develop-images/dockerfile_best-practices/
# 拉取基礎(chǔ)鏡像
FROM hub.c.163.com/library/java:8-jdk
# 鏡像的作者
MAINTAINER csp@xxx.com
#掛載目錄遂蛀，通過 VOLUME 指令創(chuàng)建的掛載點，無法指定主機(jī)上對應(yīng)的目錄干厚，是自動生成的
VOLUME ["/data1","/data2"]
RUN ["mkdir", "-p", "/app"]
#結(jié)合maven插件dockerfile-maven-plugin的打包使用
ARG JAR_FILE
ADD ${JAR_FILE} /app/app.jar
#為后面的 RUN, CMD, ENTRYPOINT, ADD 或 COPY 指令設(shè)置鏡像中的當(dāng)前工作目錄李滴。
#WORKDIR /usr/local/docker/test
#拷貝當(dāng)前目錄文件到容器/app
#COPY . /app
#與 COPY 類似螃宙，從 build context 復(fù)制文件到鏡像。不同的是悬嗓，如果 src 是歸檔文件（tar, zip, tgz, xz 等）污呼，文件會被自動解壓到 dest。
#ADD src dest
#設(shè)置環(huán)境變量包竹，環(huán)境變量可被后面的指令使用
ENV EVN_SET_TEST "WELCOME TO DOCKERFILE CONTAINER燕酷！"
##################
# RUN、CDM周瞎、ENTRYPOINT 命令都包含兩種格式：Shell 格式和 Exec 格式
# CMD還可以放在ENTRYPOINT后苗缩，為其傳遞參數(shù)。
##### shell 格式：######
## 底層會調(diào)用 /bin/sh -c <command>
# 在容器中運行指定的命令
RUN echo $EVN_SET_TEST
# 容器啟動命令 只有最后一個生效声诸，CMD 可以被 docker run 之后的參數(shù)替換酱讶。
#只有最后一個生效
CMD echo "CMD Hello world"
#配置容器啟動時運行的命令
ENTRYPOINT echo "ENTRYPOINT Hello, $EVN_SET_TEST"
###### Exec 格式： #####
## 當(dāng)指令執(zhí)行時，會直接調(diào)用 <command>彼乌，不會被 shell 解析
# ENTRYPOINT ["/bin/echo", "Hello, $EVN_SET_TEST"]
# 正確寫法應(yīng)該為：
# ENTRYPOINT ["/bin/sh", "-c", "echo Hello, $EVN_SET_TEST"]
# 為Exec 格式的ENTRYPOINT傳遞參數(shù)泻肯，結(jié)果輸出Hello, $EVN_SET_TEST dockerfile world
# CMD ["dockerfile world"]
#只有最后一個生效
ENTRYPOINT ["java","-jar","/app/app.jar"]
#表示哪個端口提供服務(wù)的提示，宿主機(jī)如果要訪問慰照，需要結(jié)合-P參數(shù)聯(lián)合使用灶挟。
EXPOSE 8080
4、build publish鏡像
配置遠(yuǎn)程docker環(huán)境變量
export DOCKER_HOST=tcp://172.16.1.191:2376
windows直接在環(huán)境變量中添加毒租。
mvn命令執(zhí)行
build鏡像：
mvn clean package dockerfile:build -DskipTests
注意：
Image will be built as xxxxx這一步會比較慢稚铣，需要將文件上傳到服務(wù)器上(等待時間取決于文件大小和上傳速度)
發(fā)布到鏡像中心，注意墅垮，該命令不會build鏡像惕医。
mvn dockerfile:push
配置中 build 和 publish 都綁定在install周期上。
如果不想觸發(fā)相關(guān)流程算色，可以添加相關(guān)例外參數(shù)抬伺。
mvn clean install -Ddockerfile.skip
| 命令 | 說明 |
|---|---|
| dockerfile.skip | Disables the entire dockerfile plugin; all goals become no-ops. |
| dockerfile.build.skip | Disables the build goal; it becomes a no-op. |
| dockerfile.tag.skip | Disables the tag goal; it becomes a no-op. |
| dockerfile.push.skip | Disables the push goal; it becomes a no-op. |
也可以取消pom.xml中executions的配置，通過 mvn clean install dockerfile:build dockerfile:push -DskipTests 構(gòu)建并且推送到注冊中心
遠(yuǎn)程鏡像查看：
[root@localhost log]# docker -H 172.16.1.191:2376 images
REPOSITORY TAG IMAGE ID CREATED SIZE
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171831 063b60635335 2 days ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171646 3b8deedff90d 2 days ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713091144 aa898d0cbd28 2 days ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-2018071308 a91e9e3b0678 2 days ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713083134 a91e9e3b0678 2 days ago 727 MB
172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713080550 db286edbbc18 2 days ago 727 MB
127.0.0.1:5200/docker-test 1.0.0-20180705042837 1e5b41afb0a1 10 days ago 727 MB
dockerlocal/docker-test 1.0.0 7d1c3e14aede 10 days ago 643 MB
docker.io/postgres 10-alpine e273e6bfba1c 2 weeks ago 39.5 MB
鏡像歷史層級查看:
--no-trunc 查看完整的命令
[root@localhost log]# docker history 172.16.1.146:8888/wondertek/docker-test:1.0.0-20180716100040 --no-trunc
IMAGE CREATED CREATED BY SIZE COMMENT
sha256:c4cf1fc7cae80b238d46b5741834140c3188e45ba929c92cd1e35145c38a7bc1 40 minutes ago /bin/sh -c #(nop) EXPOSE 8080/tcp 0 B
sha256:539db240ca1f6ec8b260e1af3ffa0a12a160b49d470644090bb9bfc26729b53e 40 minutes ago /bin/sh -c #(nop) ENTRYPOINT ["java" "-jar" "./app.jar"] 0 B
sha256:cccad169f4dfa5b3fd6e2df754b10ae5f45541aa7d4964da4f60557643ac5796 40 minutes ago /bin/sh -c #(nop) ENTRYPOINT ["/bin/sh" "-c" "echo \"ENTRYPOINT Hello, $EVN_SET_TEST\""] 0 B
sha256:e16f9ebbab1b040da6332b0fd5f0e36066219b8793fad42d1f23e8d7dbd6a412 40 minutes ago /bin/sh -c #(nop) CMD ["/bin/sh" "-c" "echo \"CMD Hello world\""] 0 B
sha256:d06785ad2059e9718e3c5a6c0334d34027232efe719dcc94b0d391ce2fad650b 40 minutes ago |1 JAR_FILE=target/docker-test-1.0.0.jar /bin/sh -c echo $EVN_SET_TEST 0 B
sha256:2517b2a4980975b64f648b6a9104255f13db0cc409aaa72fa66dbfe61d6e4e96 40 minutes ago /bin/sh -c #(nop) ENV EVN_SET_TEST=WELCOME TO DOCKERFILE CONTAINER灾梦！ 0 B
sha256:7daa3e4150f810e727993d1ddc99debe6c0c397e91f02ffd7dd65abe8e1b7171 40 minutes ago /bin/sh -c #(nop) ADD file:be73bf23e734c61fa90ae97fe0b66384632a30fa3f9c967b1afa127a2f52c198 in /app/app.jar 83.6 MB
sha256:d42fa5d86ebf2508a9e3de305e04ac3e66dc8e7791c127487161a00ecd2ee710 40 minutes ago /bin/sh -c #(nop) ARG JAR_FILE 0 B
sha256:7b0922396475e204d624772921470e94b7348f52d7ceb8717d4b38871387c303 40 minutes ago /bin/sh -c #(nop) VOLUME [/data1 /data2] 0 B
sha256:beb6d7c2897188c448f6e33a91cbc7110aac171cc5556663e01bbd806e9fb10f 40 minutes ago /bin/sh -c #(nop) MAINTAINER csp@xxx.com 0 B
sha256:a001fc27db5aae61800c78fa1c794177f07e5422525ded583ff2ccde6f6107bc 19 months ago /bin/sh -c /var/lib/dpkg/info/ca-certificates-java.postinst configure 418 kB
<missing> 19 months ago /bin/sh -c set -x && apt-get update && apt-get install -y openjdk-8-jdk="$JAVA_DEBIAN_VERSION" ca-certificates-java="$CA_CERTIFICATES_JAVA_VERSION" && rm -rf /var/lib/apt/lists/* && [ "$JAVA_HOME" = "$(docker-java-home)" ] 352 MB
<missing> 19 months ago /bin/sh -c #(nop) ENV CA_CERTIFICATES_JAVA_VERSION=20140324 0 B
<missing> 19 months ago /bin/sh -c #(nop) ENV JAVA_DEBIAN_VERSION=8u111-b14-2~bpo8+1 0 B
<missing> 19 months ago /bin/sh -c #(nop) ENV JAVA_VERSION=8u111 0 B
<missing> 19 months ago /bin/sh -c #(nop) ENV JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 0 B
<missing> 19 months ago /bin/sh -c { echo '#!/bin/sh'; echo 'set -e'; echo; echo 'dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"'; } > /usr/local/bin/docker-java-home && chmod +x /usr/local/bin/docker-java-home 87 B
<missing> 19 months ago /bin/sh -c #(nop) ENV LANG=C.UTF-8 0 B
<missing> 19 months ago /bin/sh -c echo 'deb http://deb.debian.org/debian jessie-backports main' > /etc/apt/sources.list.d/jessie-backports.list 55 B
<missing> 19 months ago /bin/sh -c apt-get update && apt-get install -y --no-install-recommends bzip2 unzip xz-utils && rm -rf /var/lib/apt/lists/* 1.29 MB
<missing> 19 months ago /bin/sh -c apt-get update && apt-get install -y --no-install-recommends bzr git mercurial openssh-client subversion procps && rm -rf /var/lib/apt/lists/* 123 MB
<missing> 19 months ago /bin/sh -c apt-get update && apt-get install -y --no-install-recommends ca-certificates curl wget && rm -rf /var/lib/apt/lists/* 44.3 MB
<missing> 19 months ago /bin/sh -c #(nop) CMD ["/bin/bash"] 0 B
<missing> 19 months ago /bin/sh -c #(nop) ADD file:1d214d2782eaccc743b8d683ccecf2f87f12a0ecdfbcd6fdf4943ce616f23870 in / 123 MB
私有鏡像中心查看沛简，這里使用的是前面介紹的harbor：
image
