kubernetes入門(上)-從新認識docker

爲何要使用容器？

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docker基礎

爲何使用容器：

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docker基本使用(上)

docker基本使用：https://docs.docker.com/install/linux/docker-ce/centos/

centos7.x安裝docker

#安裝依賴包

[root@k8s-node1 ~]# yum install -y yum-utils  device-mapper-persistent-data  lvm2

#添加docker軟件包源

[root@k8s-node1 ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

Loaded plugins: fastestmirror

adding repo from: https://download.docker.com/linux/centos/docker-ce.repo

grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo

repo saved to /etc/yum.repos.d/docker-ce.repo

#安裝docker-ce

[root@k8s-node1 ~]# yum install docker-ce -y

# 啓動Docker服務並設置開機啓動

[root@k8s-node1 yum.repos.d]# systemctl start docker

[root@k8s-node1 yum.repos.d]# systemctl enable docker

Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.

[root@k8s-node1 yum.repos.d]# docker info

Client:

 Debug Mode: false

Server:

 Containers: 0

  Running: 0

  Paused: 0

  Stopped: 0

 Images: 0

 Server Version: 19.03.5

 Storage Driver: overlay2

  Backing Filesystem: xfs

  Supports d_type: true

  Native Overlay Diff: true

 Logging Driver: json-file

 Cgroup Driver: cgroupfs

 Plugins:

  Volume: local

  Network: bridge host ipvlan macvlan null overlay

  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog

 Swarm: inactive

 Runtimes: runc

 Default Runtime: runc

 Init Binary: docker-init

 containerd version: b34a5c8af56e510852c35414db4c1f4fa6172339

 runc version: 3e425f80a8c931f88e6d94a8c831b9d5aa481657

 init version: fec3683

 Security Options:

  seccomp

   Profile: default

 Kernel Version: 3.10.0-1062.el7.x86_64

 Operating System: CentOS Linux 7 (Core)

 OSType: linux

 Architecture: x86_64

 CPUs: 2

 Total Memory: 3.682GiB

 Name: k8s-node1

 ID: 4KMI:DWZZ:LGRD:B5YU:SWSA:RKJV:LYMA:4CV2:NED5:25NI:JVUT:O6ZB

 Docker Root Dir: /var/lib/docker

 Debug Mode: false

 Registry: https://index.docker.io/v1/

 Labels:

 Experimental: false

 Insecure Registries:

  127.0.0.0/8

 Live Restore Enabled: false

#配置國內docker鏡像加速器：

https://www.daocloud.io/mirror#accelerator-doc

[root@k8s-node1 yum.repos.d]# curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://f1361db2.m.daocloud.io

docker version >= 1.12

{"registry-mirrors": ["http://f1361db2.m.daocloud.io"]}

Success.

You need to restart docker to take effect: sudo systemctl restart docker 

[root@k8s-node3 yum.repos.d]# docker info

Client:

 Debug Mode: false

Server:

 Containers: 0

  Running: 0

  Paused: 0

  Stopped: 0

 Images: 0

 Server Version: 19.03.5

 Storage Driver: overlay2

  Backing Filesystem: xfs

  Supports d_type: true

  Native Overlay Diff: true

 Logging Driver: json-file

 Cgroup Driver: cgroupfs

 Plugins:

  Volume: local

  Network: bridge host ipvlan macvlan null overlay

  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog

 Swarm: inactive

 Runtimes: runc

 Default Runtime: runc

 Init Binary: docker-init

 containerd version: b34a5c8af56e510852c35414db4c1f4fa6172339

 runc version: 3e425f80a8c931f88e6d94a8c831b9d5aa481657

 init version: fec3683

 Security Options:

  seccomp

   Profile: default

 Kernel Version: 3.10.0-1062.el7.x86_64

 Operating System: CentOS Linux 7 (Core)

 OSType: linux

 Architecture: x86_64

 CPUs: 2

 Total Memory: 3.682GiB

 Name: k8s-node3

 ID: UDJF:ZHHF:SRAN:ZETK:KJCS:GDW3:K6RJ:XDKB:SHHG:3QZV:OMEE:PQ32

 Docker Root Dir: /var/lib/docker

 Debug Mode: false

 Registry: https://index.docker.io/v1/

 Labels:

 Experimental: false

 Insecure Registries:

  127.0.0.0/8

 Registry Mirrors:

  http://f1361db2.m.daocloud.io/

 Live Restore Enabled: false

拉取鏡像：docker pull

[root@k8s-node1 ~]# docker pull nginx

Using default tag: latest

latest: Pulling from library/nginx

8ec398bc0356: Pulling fs layer 

a53c868fbde7: Pulling fs layer 

79daf9dd140d: Pulling fs layer 

latest: Pulling from library/nginx

8ec398bc0356: Pull complete 

a53c868fbde7: Pull complete 

79daf9dd140d: Pull complete 

Digest: sha256:28c9d0427097e5427cd313429b271c646c35b60fff05f543b15ed08fba3c09ff

Status: Downloaded newer image for nginx:latest

docker.io/library/nginx:latest

鏡像的概念：

後臺啓動容器

[root@k8s-node1 ~]# docker run -d nginx

WARNING: IPv4 forwarding is disabled. Networking will not work.

57a9e55216687e6067b241eea4fc370d69ee206a77dde4e372ad9dbcd05d4034

查看運行的容器

[root@k8s-node1 ~]# docker ps -l

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES

57a9e5521668        nginx               "nginx -g 'daemon of…"   28 seconds ago      Up 26 seconds       80/tcp              vibrant_ardinghelli

暴露容器端口，映射到對應主機的88端口

[root@k8s-node1 ~]# docker run -d -p 88:80 nginx

WARNING: IPv4 forwarding is disabled. Networking will not work.

b625b88ca907c772aa95653980710f29e58c2b223dbefcd10b0c5579a0ac84e9

進入容器:

[root@k8s-node3 ~]# docker exec -it 37d0dfe6597c bash

root@37d0dfe6597c:/# ls

bin  boot  dev  etc  home  lib  lib64  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var

容器的隔離技術

1、namespace

  1,UTS:主機和域名

  2,IPC:好比消息隊列，共享內存

  3,PID:進程編號

  4,network:網絡協議棧的隔離，例如IP,端口

  5,mount: 文件系統

  6,User: 用戶和用戶組

2、cgroups:  資源限制，好比CPU、內存、磁盤IO

3、UFS:聯合文件系統，copy-on-write

VM1 鏡像模板  10G

VM2   10G

建立容器

一、應用暴露出去

二、主機名，IP

三、數據要不要持久化

四、變量傳入，作相關動做

[root@k8s-node1 ~]#  docker run -d busybox ping baidu.com 

Unable to find image 'busybox:latest' locally

latest: Pulling from library/busybox

bdbbaa22dec6: Pulling fs layer 

latest: Pulling from library/busybox

bdbbaa22dec6: Pull complete 

Digest: sha256:6915be4043561d64e0ab0f8f098dc2ac48e077fe23f488ac24b665166898115a

Status: Downloaded newer image for busybox:latest

d926cfa4a85d77b103d7b681f3bc1cfe2bd7abb66053845b1525b9f632b78d5a

[root@k8s-node1 ~]# docker ps -l

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

d926cfa4a85d        busybox             "ping baidu.com"    6 seconds ago       Up 5 seconds                            pensive_merkle

[root@k8s-node1 ~]# docker exec -it d926cfa4a85d sh

/ # ps -l

PID   USER     TIME  COMMAND

    1 root      0:00 ping baidu.com

    6 root      0:00 sh

   11 root      0:00 ps -l

鏡像分層：

查看本地docker鏡像

[root@k8s-node1 ~]# docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

nginx               latest              5ad3bd0e67a9        10 days ago         127MB

busybox             latest              6d5fcfe5ff17        5 weeks ago         1.22MB

查看鏡像分層，每行就是一個鏡像層

[root@k8s-node1 ~]# docker history nginx

IMAGE               CREATED             CREATED BY                                      SIZE                COMMENT

5ad3bd0e67a9        10 days ago         /bin/sh -c #(nop)  CMD ["nginx" "-g" "daemon…   0B                  

<missing>           10 days ago         /bin/sh -c #(nop)  STOPSIGNAL SIGTERM           0B                  

<missing>           10 days ago         /bin/sh -c #(nop)  EXPOSE 80                    0B                  

<missing>           10 days ago         /bin/sh -c ln -sf /dev/stdout /var/log/nginx…   22B                 

<missing>           10 days ago         /bin/sh -c set -x     && addgroup --system -…   57.5MB              

<missing>           10 days ago         /bin/sh -c #(nop)  ENV PKG_RELEASE=1~buster     0B                  

<missing>           10 days ago         /bin/sh -c #(nop)  ENV NJS_VERSION=0.3.8        0B                  

<missing>           10 days ago         /bin/sh -c #(nop)  ENV NGINX_VERSION=1.17.8     0B                  

<missing>           5 weeks ago         /bin/sh -c #(nop)  LABEL maintainer=NGINX Do…   0B                  

<missing>           5 weeks ago         /bin/sh -c #(nop)  CMD ["bash"]                 0B                  

<missing>           5 weeks ago         /bin/sh -c #(nop) ADD file:04caaf303199c81ff…   69.2MB   

==================================================

docker基本使用(下)

建立容器

一、應用暴露出去

二、主機名，IP

三、數據要不要持久化

四、變量傳入，作相關動做

五、資源限制，例如CPU，內存

資源限制：

[root@k8s-node1 ~]# cd wwwroot/

[root@k8s-node1 wwwroot]# ls

[root@k8s-node1 wwwroot]# touch index.html

[root@k8s-node1 wwwroot]# vim index.html 

hello

[root@k8s-node3 ~]# docker run -d  -p 8888:8080  --name  web  -e  abc=123456  -v  $PWD/wwwroot:/opt  -m  1G   --cpus="2"  lizhenliang/java-demo

Unable to find image 'lizhenliang/java-demo:latest' locally

latest: Pulling from lizhenliang/java-demo

a02a4930cb5d: Pulling fs layer 

12ac6c660ca4: Pulling fs layer 

675ab56ce773: Pulling fs layer 

10f8e813c167: Waiting 

2347739fbd10: Waiting 

latest: Pulling from lizhenliang/java-demo

a02a4930cb5d: Pull complete 

12ac6c660ca4: Pull complete 

675ab56ce773: Pull complete 

10f8e813c167: Pull complete 

2347739fbd10: Pull complete 

Digest: sha256:4e43b2bcd81adf6d00b46a5c7efd384fc9f5b059c75255c8c89404ed4818bae3

Status: Downloaded newer image for lizhenliang/java-demo:latest

1a200c68bc46a5ffa732ac3b55d4216548746d25ef9e11e014f1d9539581eac6

[root@k8s-node1 ~]# lsof -i:8888

COMMAND     PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME

docker-pr 16121 root    4u  IPv6  95649      0t0  TCP *:ddi-tcp-1 (LISTEN)

[root@k8s-node1 ~]# docker ps -l

CONTAINER ID        IMAGE                   COMMAND             CREATED             STATUS              PORTS                    NAMES

8c57021d12da        lizhenliang/java-demo   "catalina.sh run"   9 minutes ago       Up 9 minutes        0.0.0.0:8888->8080/tcp   web

[root@k8s-node1 ~]# docker exec -it 8c57021d12da bash

[root@8c57021d12da tomcat]# ls

BUILDING.txt  CONTRIBUTING.md  LICENSE  NOTICE  README.md  RELEASE-NOTES  RUNNING.txt  bin  conf  lib  logs  temp  webapps  work

[root@8c57021d12da tomcat]# cd /opt/

[root@8c57021d12da opt]# ls

index.html

[root@8c57021d12da opt]# cat index.html 

hello

-d                                                   在後臺運行

-p                                                   映射端口(將程序的8080端口映射爲宿主機的8888端口)

--name                                           容器名稱

-m                                                  限制內存爲1G

--cpus                                              限制cpu數量爲2

-v                                                     掛載本地的wwwroot目錄到容器下面的/opt目錄                      -v   bind mounts

-e                                                    新加的參數

最後面接的是docker地址

訪問對應的IP地址和映射出去的端口，能夠獲得以下圖：

查看容器的狀態：

[root@k8s-node1 ~]# docker stats web

CONTAINER ID        NAME                CPU %               MEM USAGE / LIMIT   MEM %               NET I/O             BLOCK I/O           PIDS

8c57021d12da        web                 0.21%               178.1MiB / 1GiB     17.40%              25.9kB / 750kB      0B / 0B             44

一、先在對應目錄建立文件

[root@k8s-node1 ~]# cd wwwroot/

[root@k8s-node1 wwwroot]# ls

index.html

[root@k8s-node1 wwwroot]# touch a.html

[root@k8s-node1 wwwroot]# ls

a.html  index.html

二、中止容器

[root@k8s-node1 ~]# docker stop web

web

三、驗證是否中止成功

[root@k8s-node1 ~]# docker exec -it 8c57021d12da bash

Error response from daemon: Container 8c57021d12dab21ce66d5f90de498f2b17c4aab24e16022b7b8c00c99859ee1e is not running

[root@k8s-node1 ~]# ls

anaconda-ks.cfg  wwwroot

[root@k8s-node1 ~]# cd wwwroot/

[root@k8s-node1 wwwroot]# ls

a.html  index.html

[root@k8s-node1 wwwroot]# cd ..

[root@k8s-node1 ~]# ls

anaconda-ks.cfg  wwwroot

四、從新啓動容器，進入對應目錄，看看是否還有那兩個文件，若是有，說明數據已經持久化了

[root@k8s-node1 ~]# docker start web

web

[root@k8s-node1 ~]# docker exec -it 8c57021d12da bash

[root@8c57021d12da tomcat]# ls

BUILDING.txt  CONTRIBUTING.md  LICENSE  NOTICE  README.md  RELEASE-NOTES  RUNNING.txt  bin  conf  lib  logs  temp  webapps  work

[root@8c57021d12da tomcat]# cd /opt/ 

[root@8c57021d12da opt]# ls

a.html  index.html

掛載卷：

[root@k8s-node2 wwwroot]# docker volume ls

DRIVER              VOLUME NAME

[root@k8s-node2 wwwroot]# cd 

首先建立一個卷volume

[root@k8s-node2 ~]#  docker volume create www

www

[root@k8s-node2 ~]# ls

anaconda-ks.cfg  wwwroot

查看卷所對應的容器內目錄

[root@k8s-node2 ~]# docker volume inspect www

[

    {

        "CreatedAt": "2020-02-03T10:24:10+08:00",

        "Driver": "local",

        "Labels": {},

        "Mountpoint": "/var/lib/docker/volumes/www/_data",

        "Name": "www",

        "Options": {},

        "Scope": "local"

    }

]

[root@k8s-node2 ~]# docker volume ls

DRIVER              VOLUME NAME

local               www

[root@k8s-node2 ~]# docker run -d  -p 8888:8080  --name  web  -e  abc=123456  -v  $PWD/wwwroot:/opt -v www:/opt2 -m  1G   --cpus="2"  lizhenliang/java-demo

Unable to find image 'lizhenliang/java-demo:latest' locally

latest: Pulling from lizhenliang/java-demo

a02a4930cb5d: Pulling fs layer 

12ac6c660ca4: Pulling fs layer 

675ab56ce773: Pulling fs layer 

10f8e813c167: Waiting 

2347739fbd10: Waiting 

latest: Pulling from lizhenliang/java-demo

a02a4930cb5d: Pull complete 

12ac6c660ca4: Pull complete 

675ab56ce773: Pull complete 

10f8e813c167: Pull complete 

2347739fbd10: Pull complete 

Digest: sha256:4e43b2bcd81adf6d00b46a5c7efd384fc9f5b059c75255c8c89404ed4818bae3

Status: Downloaded newer image for lizhenliang/java-demo:latest

10ef7525e95aa9916b1c3f33a577c64ce95d3f15551cc2d44669a59169ecb3c0

[root@k8s-node2 ~]# docker ps -l

CONTAINER ID        IMAGE                   COMMAND             CREATED             STATUS              PORTS                    NAMES

10ef7525e95a        lizhenliang/java-demo   "catalina.sh run"   11 seconds ago      Up 9 seconds        0.0.0.0:8888->8080/tcp   web

[root@k8s-node2 ~]# docker exec -it 10ef7525e95a bash

[root@10ef7525e95a tomcat]# ls

BUILDING.txt  CONTRIBUTING.md  LICENSE  NOTICE  README.md  RELEASE-NOTES  RUNNING.txt  bin  conf  lib  logs  temp  webapps  work

[root@10ef7525e95a tomcat]# cd /opt2/

[root@10ef7525e95a opt2]# ls

[root@10ef7525e95a opt2]# touch {1..100}

[root@10ef7525e95a opt2]# ls

1    11  14  17  2   22  25  28  30  33  36  39  41  44  47  5   52  55  58  60  63  66  69  71  74  77  8   82  85  88  90  93  96  99

10   12  15  18  20  23  26  29  31  34  37  4   42  45  48  50  53  56  59  61  64  67  7   72  75  78  80  83  86  89  91  94  97

100  13  16  19  21  24  27  3   32  35  38  40  43  46  49  51  54  57  6   62  65  68  70  73  76  79  81  84  87  9   92  95  98

[root@10ef7525e95a opt2]# exit

exit

[root@k8s-node2 ~]# cd /var/lib/docker/volumes/www/_data

[root@k8s-node2 _data]# ls

1    11  14  17  2   22  25  28  30  33  36  39  41  44  47  5   52  55  58  60  63  66  69  71  74  77  8   82  85  88  90  93  96  99

10   12  15  18  20  23  26  29  31  34  37  4   42  45  48  50  53  56  59  61  64  67  7   72  75  78  80  83  86  89  91  94  97

100  13  16  19  21  24  27  3   32  35  38  40  43  46  49  51  54  57  6   62  65  68  70  73  76  79  81  84  87  9   92  95  98

[root@k8s-node2 _data]# cd -

/root

[root@k8s-node2 ~]# ls

anaconda-ks.cfg  wwwroot

[root@k8s-node2 ~]# cd wwwroot/

[root@k8s-node2 wwwroot]# ls

index.html

[root@k8s-node2 ~]# docker ps -l

CONTAINER ID        IMAGE                   COMMAND             CREATED              STATUS              PORTS                    NAMES

10ef7525e95a        lizhenliang/java-demo   "catalina.sh run"   About a minute ago   Up About a minute   0.0.0.0:8888->8080/tcp   web

[root@k8s-node2 ~]# cd wwwroot/

[root@k8s-node2 wwwroot]# ls

index.html

[root@k8s-node2 wwwroot]# touch {a..z}

[root@k8s-node2 wwwroot]# ls

a  b  c  d  e  f  g  h  i  index.html  j  k  l  m  n  o  p  q  r  s  t  u  v  w  x  y  z

[root@k8s-node2 wwwroot]# ls

a  b  c  d  e  f  g  h  i  index.html  j  k  l  m  n  o  p  q  r  s  t  u  v  w  x  y  z

[root@k8s-node2 wwwroot]# docker exec -it 10ef7525e95a bash

[root@10ef7525e95a tomcat]# ls

BUILDING.txt  CONTRIBUTING.md  LICENSE  NOTICE  README.md  RELEASE-NOTES  RUNNING.txt  bin  conf  lib  logs  temp  webapps  work

[root@10ef7525e95a tomcat]# cd /opt

[root@10ef7525e95a opt]# ls

a  b  c  d  e  f  g  h  i  index.html  j  k  l  m  n  o  p  q  r  s  t  u  v  w  x  y  z

[root@10ef7525e95a opt]# exit

exit

[root@k8s-node2 wwwroot]# 

由此可驗證，volume卷和目錄都已經掛載，並且在宿主機中建立文件，在容器中的對應目錄裏面仍然能夠看見文件。

==================================================

手把手教你製做鏡像(Dockerfile)

一、想讓公司項目容器化部署

什麼語言？

依賴環境？

服務端口？

中間件？

先啓動一個容器，在裏面跑通這個流程，而後拷貝到Dockerfile

nginx鏡像文件Dockerfile

[root@k8s-node3 nginx]# pwd

/root/nginx

[root@k8s-node3 nginx]# cat Dockerfile 

FROM centos:7

LABEL maintainer chenjisong

RUN yum install epel-release -y

RUN yum install nginx -y

EXPOSE 80

WORKDIR /usr/local

CMD ["nginx", "-g", "daemon off;"]

[root@k8s-node3 nginx]# docker build -t nginx:yum -f Dockerfile .

...........................................................................

Removing intermediate container 7298f63a567a

 ---> a38ab190765d

Step 5/7 : EXPOSE 80

 ---> Running in f2f1af8ced1a

Removing intermediate container f2f1af8ced1a

 ---> 2e1086e92e81

Step 6/7 : WORKDIR /usr/local

 ---> Running in 43fd55f963e9

Removing intermediate container 43fd55f963e9

 ---> 0c205f779d5c

Step 7/7 : CMD ["nginx", "-g", "daemon off;"]

 ---> Running in fe7501f9c329

Removing intermediate container fe7501f9c329

 ---> 23670b1a7aab

Successfully built 23670b1a7aab

Successfully tagged nginx:yum

[root@k8s-node3 nginx]# docker run -d -p 8887:80 23670b1a7aab

1167e64be7a689bb885c0495e4df985faecae900538b33f0a763d4ec79005384

[root@k8s-node3 tomcat]# ls

apache-tomcat-8.5.43.tar.gz  Dockerfile

[root@k8s-node3 tomcat]# cat Dockerfile 

FROM centos:7

MAINTAINER www.51cto.com

ENV VERSION=8.5.43

RUN yum install java-1.8.0-openjdk wget curl unzip iproute net-tools -y && \

    yum clean all && \

    rm -rf /var/cache/yum/*

COPY apache-tomcat-${VERSION}.tar.gz /

RUN tar -zxvf apache-tomcat-${VERSION}.tar.gz && \

    mv apache-tomcat-${VERSION} /usr/local/tomcat && \

    rm -rf apache-tomcat-${VERSION}.tar.gz /usr/local/tomcat/webapps/* && \

    mkdir /usr/local/tomcat/webapps/test && \

    echo "ok" > /usr/local/tomcat/webapps/test/status.html && \

    sed -i '1a JAVA_OPTS="-Djava.security.edg=file:/dev/ ./urandom"' /usr/local/tomcat/bin/catalina.sh && \

    ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

ENV PATH $PATH:/usr/local/tomcat/bin

WORKDIR /usr/local/tomcat

EXPOSE 8080

CMD ["catalina.sh", "run"]

[root@k8s-node3 tomcat]# docker build -t nginx:complication -f Dockerfile .

[root@k8s-node3 php]# ls

Dockerfile  php-5.6.36.tar.gz  php-fpm.conf  php.ini

[root@k8s-node3 php]# cat Dockerfile 

FROM centos:7

MAINTAINER  www.ctnrs.com

RUN yum install epel-release -y && \

    yum install -y gcc gcc-c++ make gd-devel libxml2-devel \

    libcurl-devel libjpeg-devel libpng-devel openssl-devel \

    libmcrypt-devel libxslt-devel libtidy-devel autoconf \

    iproute net-tools telnet wget curl && \

    yum clean all && \

    rm -rf /var/cache/yum/*

COPY php-5.6.36.tar.gz /

RUN tar -zxvf php-5.6.36.tar.gz && \

    cd php-5.6.36 && \

    ./configure --prefix=/usr/local/php \

    --with-config-file-path=/usr/local/php/etc \

    --enable-fpm --enable-opcache \

    --with-mysql --with-mysqli --with-pdo-mysql \

    --with-openssl --with-zlib --with-curl --with-gd \

    --with-jpeg-dir --with-png-dir --with-freetype-dir \

    --enable-mbstring --with-mcrypt --enable-hash && \

    make -j 4 && make install && \

    cp php.ini-production /usr/local/php/etc/php.ini && \

    cp sapi/fpm/php-fpm.conf /usr/local/php/etc/php-fpm.conf && \

    sed -i "90a \daemonize = no" /usr/local/php/etc/php-fpm.conf && \

    mkdir /usr/local/php/log && \

    cd / && rm -rf php* && \

    ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

ENV PATH $PATH:/usr/local/php/sbin

COPY php.ini /usr/local/php/etc

COPY php-fpm.conf /usr/local/php/etc

WORKDIR /usr/local/php

EXPOSE 9000

CMD ["php-fpm"]

[root@k8s-node3 php]# docker build -t php:complication -f Dockerfile .

[root@k8s-node3 nginx]# ls

Dockerfile  nginx-1.15.5.tar.gz  nginx.conf

[root@k8s-node3 nginx]# cat Dockerfile 

FROM centos:7

LABEL maintainer www.ctnrs.com

RUN yum install -y gcc gcc-c++ make \

    openssl-devel pcre-devel gd-devel \

    iproute net-tools telnet wget curl && \

    yum clean all && \

    rm -rf /var/cache/yum/*

COPY nginx-1.15.5.tar.gz /

RUN tar zxvf nginx-1.15.5.tar.gz && \

    cd nginx-1.15.5 && \

    ./configure --prefix=/usr/local/nginx \

    --with-http_ssl_module \

    --with-http_stub_status_module && \

    make -j 4 && make install && \

    rm -rf /usr/local/nginx/html/* && \

    echo "ok" >> /usr/local/nginx/html/status.html && \

    cd / && rm -rf nginx* && \

    ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

 

ENV PATH $PATH:/usr/local/nginx/sbin

COPY nginx.conf /usr/local/nginx/conf/nginx.conf

WORKDIR /usr/local/nginx

EXPOSE 80

CMD ["nginx","-g","daemon off;"] 

[root@k8s-node3 nginx]# docker build -t nginx:complication -f Dockerfile .

[root@k8s-node3 web]# cd java/

[root@k8s-node3 java]# ls

Dockerfile

[root@k8s-node3 java]# cat Dockerfile 

FROM java:8-jdk-alpine

LABEL maintainer www.ctnrs.com

ENV JAVA_OPTS="$JAVA_OPTS -Dfile.encoding=UTF8 -Duser.timezone=GMT+08"

RUN apk add -U tzdata && \

    ln -sf /usr/share/zoneinfo/Asia/Shanghai  /etc/localtime

COPY ./target/eureka-service.jar ./

EXPOSE 8888

CMD java -jar $JAVA_OPTS /eureka-service.jar