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docker安装与运行web程序

网友: 文档中心 2022-03-16 16:28:46

docker安装与运行web程序

  • 1.自动下载最新版docker命令
  • 2.自动安装完成后执行
  • 3.展示server命令
  • 4.再确认
  • 5.验证docker是否安装成功
  • 6.设置开机自启
  • 7.查看启动状态
  • 8.ps -ef|grep docker
  • 9.关闭防火墙或打开某个端口
  • 10.设置网关ipv4
  • 11.编辑docker设置
  • 12.输入命令安装镜像
  • 13.重启docker
  • 14.启动命令
  • 15.验证是否成功
  • 16.网站验证
  • 注意事项

各位朋友，以下是我自学docker部署jar包程序的安装部署步骤。仅供参考
本次是安装在了VMware Workstation Pro虚拟机中，Centos7.5(内核版本3.10.0-957.el7.x86_64)，需要提前写好能够验证的java程序
参考文档
link
link
link
link
link
感谢以上前辈

1.自动下载最新版docker命令

curl -s https://get.docker.com | sh

以下为展示安装日志

[root@bogon local]# curl -s https://get.docker.com | shExecuting docker install script, commit: 3d8fe77c2c46c5b7571f94b42793905e5b3e42e4+ sh -c 'yum install -y -q yum-utils'Delta RPMs disabled because /usr/bin/applydeltarpm not installed.警告：/var/cache/yum/x86_64/7/base/packages/libxml2-python-2.9.1-6.el7.5.x86_64.rpm: 头V3 RSA/SHA256 Signature, 密钥 ID f4a80eb5: NOKEYlibxml2-python-2.9.1-6.el7.5.x86_64.rpm 的公钥尚未安装导入 GPG key 0xF4A80EB5: 用户ID     : "CentOS-7 Key (CentOS 7 Official Signing Key) " 指纹: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5 软件包     : centos-release-7-6.1810.2.el7.centos.x86_64 (@anaconda) 来自: /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7+ sh -c 'yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo'已加载插件：fastestmirroradding repo from: https://download.docker.com/linux/centos/docker-ce.repograbbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.reporepo saved to /etc/yum.repos.d/docker-ce.repo+ '[' stable '!=' stable ']'+ sh -c 'yum makecache'已加载插件：fastestmirrorLoading mirror speeds from cached hostfile * base: mirrors.163.com * extras: mirrors.163.com * updates: mirrors.163.combase    | 3.6 kB     00:00docker-ce-stable      | 3.5 kB     00:00extras  | 2.9 kB     00:00updates | 2.9 kB     00:00(1/10): docker-ce-stable/7/x86_64/updateinfo |   55 B   00:00(2/10): docker-ce-stable/7/x86_64/primary_db |  55 kB   00:00(3/10): docker-ce-stable/7/x86_64/other_db   | 117 kB   00:00(4/10): docker-ce-stable/7/x86_64/filelists_db      |  24 kB   00:02(5/10): extras/7/x86_64/other_db      | 134 kB   00:00(6/10): updates/7/x86_64/other_db     | 454 kB   00:01(7/10): extras/7/x86_64/filelists_db  | 224 kB   00:03(8/10): base/7/x86_64/other_db | 2.6 MB   00:07(9/10): updates/7/x86_64/filelists_db | 3.4 MB   00:16(10/10): base/7/x86_64/filelists_db   | 7.2 MB   00:19元数据缓存已建立+ '[' -n '' ']'+ sh -c 'yum install -y -q docker-ce'Delta RPMs disabled because /usr/bin/applydeltarpm not installed.warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-20.10.3-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEYdocker-ce-20.10.3-3.el7.x86_64.rpm 的公钥尚未安装导入 GPG key 0x621E9F35: 用户ID     : "Docker Release (CE rpm) " 指纹: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35 来自: https://download.docker.com/linux/centos/gpgIf you would like to use Docker as a non-root user, you should now consideradding your user to the "docker" group with something like:  sudo usermod -aG docker your-userRemember that you will have to log out and back in for this to take effect!WARNING: Adding a user to the "docker" group will grant the ability to run  containers which can be used to obtain root privileges on the  docker host.  Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface  for more information.

2.自动安装完成后执行

docker version

以下为展示日志

Client: Docker Engine - Community Version:    20.10.3 API version:1.41 Go version: go1.13.15 Git commit: 48d30b5 Built:      Fri Jan 29 14:34:14 2021 OS/Arch:    linux/amd64 Context:    default Experimental:      trueCannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docke r daemon running?

3.展示server命令

service docker start

以下为展示日志

Redirecting to /bin/systemctl start docker.service

4.再确认

docker version

以下为展示日志

Client: Docker Engine - Community Version:    20.10.3 API version:1.41 Go version: go1.13.15 Git commit: 48d30b5 Built:      Fri Jan 29 14:34:14 2021 OS/Arch:    linux/amd64 Context:    default Experimental:      trueServer: Docker Engine - Community Engine:  Version:   20.10.3  API version:      1.41 (minimum version 1.12)  Go version:go1.13.15  Git commit:46229ca  Built:     Fri Jan 29 14:32:37 2021  OS/Arch:   linux/amd64  Experimental:     false containerd:  Version:   1.4.3  GitCommit: 269548fa27e0089a8b8278fc4fc781d7f65a939b runc:  Version:   1.0.0-rc92  GitCommit: ff819c7e9184c13b7c2607fe6c30ae19403a7aff docker-init:  Version:   0.19.0  GitCommit: de40ad0

5.验证docker是否安装成功

docker run hello-world

以下为展示日志

0e03bdcc26d7: Pull completeDigest: sha256:31b9c7d48790f0d8c50ab433d9c3b7e17666d6993084c002c2ff1ca09b96391dStatus: Downloaded newer image for hello-world:latestHello from Docker!This message shows that your installation appears to be working correctly.To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.    (amd64) 3. The Docker daemon created a new container from that image which runs the    executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it    to your terminal.To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bashShare images, automate workflows, and more with a free Docker ID: https://hub.docker.com/For more examples and ideas, visit: https://docs.docker.com/get-started/

以上为安装成功！

6.设置开机自启

systemctl start docker
systemctl enable docker

7.查看启动状态

systemctl status docker

以下为展示日志

● docker.service - Docker Application Container Engine   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)   Active: active (running) since 日 2021-02-07 11:19:48 CST; 2h 10min ago     Docs: https://docs.docker.com Main PID: 6805 (dockerd)    Tasks: 10   Memory: 49.1M   CGroup: /system.slice/docker.service    └─6805 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/cont...2月 07 11:19:47 bogon dockerd[6805]: time="2021-02-07T11:19:47.740356356+0...pc2月 07 11:19:47 bogon dockerd[6805]: time="2021-02-07T11:19:47.764173992+0...."2月 07 11:19:48 bogon dockerd[6805]: time="2021-02-07T11:19:48.672975282+0...s"2月 07 11:19:48 bogon dockerd[6805]: time="2021-02-07T11:19:48.795440720+0...g"2月 07 11:19:48 bogon dockerd[6805]: time="2021-02-07T11:19:48.921816765+0...."2月 07 11:19:48 bogon dockerd[6805]: time="2021-02-07T11:19:48.953092771+0....32月 07 11:19:48 bogon dockerd[6805]: time="2021-02-07T11:19:48.953380299+0...n"2月 07 11:19:48 bogon systemd[1]: Started Docker Application Container Engine.2月 07 11:19:48 bogon dockerd[6805]: time="2021-02-07T11:19:48.988094890+0...k"2月 07 11:27:30 bogon dockerd[6805]: time="2021-02-07T11:27:30.296721547+0...e"Hint: Some lines were ellipsized, use -l to show in full.

8.ps -ef|grep docker

以下为展示日志

root      6805     1  0 11:19 ? 00:00:01 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sockroot      7552  6461  0 13:30 pts/0    00:00:00 grep --color=auto docker

9.关闭防火墙或打开某个端口

systemctl stop firewalld

10.设置网关ipv4

vi /usr/lib/sysctl.d/00-system.conf
编辑中增加 net.ipv4.ip_forward=1编辑后重启网关systemctl restart network验证修改是否成功sysctl net.ipv4.ip_forward

11.编辑docker设置

新建文件 touch filename

编辑 filenameFROM java:8 (自动下载1.8版本jdk)VOLUME /tmp　　　　 ADD demo-0.0.1-SNAPSHOT.jar /demo.jar (demo-0.0.1-SNAPSHOT.jar是打好的jar包，demo是自定义命名的镜像名 )ENTRYPOINT ["java","-Djava.security.egd=file:/usr/local/XXXX(jar包位置)","-jar","/demo.jar"]

12.输入命令安装镜像

docker build -t demo .

注意上方命令中最后有**.**
以下为展示日志

Sending build context to Docker daemon  17.04MBStep 1/4 : FROM java:88: Pulling from library/java5040bd298390: Pull completefce5728aad85: Pull complete76610ec20bf5: Pull complete60170fec2151: Pull completee98f73de8f0d: Pull complete11f7af24ed9c: Pull complete49e2d6393f32: Pull completebb9cdec9c7f3: Pull completeDigest: sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9dStatus: Downloaded newer image for java:8 ---> d23bdf5b1b1bStep 2/4 : VOLUME /tmp ---> Running in 252764e4bb9cRemoving intermediate container 252764e4bb9c ---> 924ebd9618c0Step 3/4 : ADD demo-0.0.1-SNAPSHOT.jar /demo.jar ---> 4adaf794c1e9Step 4/4 : ENTRYPOINT ["java","-Djava.security.egd=file:/usr/local/software","-j      ar","/demo.jar"] ---> Running in 14abd8c750e4Removing intermediate container 14abd8c750e4 ---> ba929197535bSuccessfully built ba929197535bSuccessfully tagged demo:latest

以上显示为成功 无异常

13.重启docker

systemctl restart docker

重启是防止后续运行时报错

14.启动命令

docker run -d -p 端口号:端口号 --name 镜像文件运行名称  镜像文件名称

15.验证是否成功

[root@bogon ]# docker ps -aCONTAINER ID   IMAGE     COMMAND    CREATED  STATUS  PORTS      NAMES9b699d03e15a   demo      "java -Djava.securit…"   5 seconds ago   Up 4 seconds   0.0.0.0:9099->9099/tcp   demoPORTS不为空即为成功

16.网站验证

服务器IP地址+设置的端口号+/xxx

注意事项

注意：当在虚拟机上进行安装部署时，需要注意关闭虚拟机后再次使用有可能会出现 PORTS 显示Exited (255)的情况，以下为解决方案1.删掉对应的容器2.重新使用run命令启动程序

暂时没有更好的解决方案，与开机自启docker没有太大关系，属于关闭宿主机产生的问题。 如果您有更好的解决方案还请不吝赐教！

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