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二十二、Docker 部署 Nginx 环境

Nginx 是当下最流行的 Web 服务器软件之一,以高性能著称。Docker 部署 Nginx 环境有两种方式:通过 Dockerfile 构建 和 从 Docker Hub 仓库拉取

一 使用 docker pull nginx 拉取 Nginx 镜像

这是最简单的方式,开箱即用
1、 使用docker search nginx命令列出 docker.io 上所有的 Nginx 有关的镜像

[root@localhost ~]# docker search nginx NAME                                                   DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
    nginx Official build of Nginx. 8564 [OK] jwilder/nginx-proxy Automated Nginx reverse proxy for docker con 1337 [OK] richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable of 547 [OK] jrcs/letsencrypt-nginx-proxy-companion LetsEncrypt container to use with nginx as p 371 [OK] kong Open-source Microservice & API Management la 188 [OK] webdevops/php-nginx Nginx with PHP-FPM 103 [OK] kitematic/hello-world-nginx                            A light-weight nginx container that demonstr 99 bitnami/nginx Bitnami nginx Docker Image 52 [OK] zabbix/zabbix-web-nginx-mysql Zabbix frontend based on Nginx web-server wi 51 [OK] 1and1internet/ubuntu-16-nginx-php-phpmyadmin-mysql-5 ubuntu-16-nginx-php-phpmyadmin-mysql-5 35 [OK] linuxserver/nginx An Nginx container, brought to you by LinuxS 35 tobi312/rpi-nginx                                      NGINX on Raspberry Pi / armhf 19 [OK] nginxdemos/nginx-ingress                               NGINX Ingress Controller for Kubernetes . Th 11 blacklabelops/nginx Dockerized Nginx Reverse Proxy Server. 9 [OK] wodby/drupal-nginx Nginx for Drupal container image 9 [OK] webdevops/nginx Nginx container 8 [OK] centos/nginx-18-centos7 Platform for running nginx 1.8 or building n 6 nginxdemos/hello                                       NGINX webserver that serves a simple page co 6 [OK] 1science/nginx Nginx Docker images that include Consul Temp 4 [OK] centos/nginx-112-centos7 Platform for running nginx 1.12 or building  3 pebbletech/nginx-proxy                                 nginx-proxy sets up a container running ngin 2 [OK] travix/nginx NGinx reverse proxy 1 [OK] toccoag/openshift-nginx Nginx reverse proxy for Nice running on same 1 [OK] mailu/nginx Mailu nginx frontend 0 [OK] ansibleplaybookbundle/nginx-apb An APB to deploy NGINX 0 [OK]
有很多版本,我们选择官方的 nginx

2、 拉取最新的 nginx 标签

[root@localhost ~]# docker pull nginx:latest latest: Pulling from library/nginx Digest: sha256:0fb320e2a1b1620b4905facb3447e3d84ad36da0b2c8aa8fe3a5a81d1187b884 Status: Image is up to date for nginx:latest

3、 下载完成后,可以在本地镜像列表里找到 REPOSITORY 为 nginx, 标签为 latest 的镜像

[root@localhost ~]# docker images nginx REPOSITORY  TAG     IMAGE ID      CREATED      SIZE
    nginx       latest  ae513a47849c 4 weeks ago 109MB

二、 通过 Dockerfile 文件构建

这种方式比较复杂,但可以一定程度的定制和熟悉如何编译安装 Nginx
1、 创建文件和目录

创建目录 **nginx** 用于存放后面的相关东西
[root@localhost ~]# mkdir -p nginx/www nginx/logs nginx/conf
<table> <thead> <tr> <th align="left">目录</th> <th align="left">说明</th> </tr> </thead> <tbody> <tr> <td align="left">nginx/www</td> <td align="left">该目录将映射为 nginx 容器配置的虚拟目录</td> </tr> <tr> <td align="left">nginx/logs</td> <td align="left">该目录将映射为 nginx 容器的日志目录</td> </tr> <tr> <td align="left">nginx</td> <td align="left">conf</td> </tr> </tbody> </table>

2、 创建nginx/Dockerfile文件

[root@localhost ~]# touch nginx/Dockerfile [root@localhost ~]# cd nginx [root@localhost nginx]# vi Dockerfile
然后将下面的内容拷贝到 Dockerfile 文件中
 FROM debian:stretch-slim

    LABEL maintainer="NGINX Docker Maintainers <docker-maint@nginx.com>" ENV NGINX_VERSION 1.13.12-1~stretch
    ENV NJS_VERSION 1.13.12.0.2.0-1~stretch

    RUN set -x \ && apt-get update \ && apt-get install --no-install-recommends --no-install-suggests -y gnupg1 apt-transport-https ca-certificates \ && \
        NGINX_GPGKEY=573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62; \
        found=''; \ for server in \
            ha.pool.sks-keyservers.net \
            hkp://keyserver.ubuntu.com:80 \ hkp://p80.pool.sks-keyservers.net:80 \ pgp.mit.edu \ ; do \
            echo "Fetching GPG key $NGINX_GPGKEY from $server"; \
            apt-key adv --keyserver "$server" --keyserver-options timeout=10 --recv-keys "$NGINX_GPGKEY" && found=yes && break; \ done; \
        test -z "$found" && echo >&2 "error: failed to fetch GPG key $NGINX_GPGKEY" && exit 1; \
        apt-get remove --purge --auto-remove -y gnupg1 && rm -rf /var/lib/apt/lists/* \
        && dpkgArch="$(dpkg --print-architecture)" \
        && nginxPackages=" \
            nginx=${NGINX_VERSION} \
            nginx-module-xslt=${NGINX_VERSION} \
            nginx-module-geoip=${NGINX_VERSION} \
            nginx-module-image-filter=${NGINX_VERSION} \
            nginx-module-njs=${NJS_VERSION} \
        " \
        && case "$dpkgArch" in \
            amd64|i386) \
    # arches officialy built by upstream
                echo "deb https://nginx.org/packages/mainline/debian/ stretch nginx" >> /etc/apt/sources.list.d/nginx.list \
                && apt-get update \
                ;; \
            *) \
    # we're on an architecture upstream doesn't officially build for
    # let's build binaries from the published source packages
                echo "deb-src https://nginx.org/packages/mainline/debian/ stretch nginx" >> /etc/apt/sources.list.d/nginx.list \
                \
    # new directory for storing sources and .deb files
                && tempDir="$(mktemp -d)" \
                && chmod 777 "$tempDir" \
    # (777 to ensure APT's "_apt" user can access it too)
                \
    # save list of currently-installed packages so build dependencies can be cleanly removed later
                && savedAptMark="$(apt-mark showmanual)" \
                \
    # build .deb files from upstream's source packages (which are verified by apt-get)
                && apt-get update \
                && apt-get build-dep -y $nginxPackages \
                && ( \
                    cd "$tempDir" \
                    && DEB_BUILD_OPTIONS="nocheck parallel=$(nproc)" \
                        apt-get source --compile $nginxPackages \
                ) \
    # we don't remove APT lists here because they get re-downloaded and removed later
                \
    # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
    # (which is done after we install the built packages so we don't have to redownload any overlapping dependencies)
                && apt-mark showmanual | xargs apt-mark auto > /dev/null \
                && { [ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; } \
                \
    # create a temporary local APT repo to install from (so that dependency resolution can be handled by APT, as it should be)
                && ls -lAFh "$tempDir" \
                && ( cd "$tempDir" && dpkg-scanpackages . > Packages ) \
                && grep '^Package: ' "$tempDir/Packages" \
                && echo "deb [ trusted=yes ] file://$tempDir ./" > /etc/apt/sources.list.d/temp.list \
    # work around the following APT issue by using "Acquire::GzipIndexes=false" (overriding "/etc/apt/apt.conf.d/docker-gzip-indexes")
    #   Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
    #   ...
    #   E: Failed to fetch store:/var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages  Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
                && apt-get -o Acquire::GzipIndexes=false update \
                ;; \
        esac \
        \
        && apt-get install --no-install-recommends --no-install-suggests -y \
                            $nginxPackages \
                            gettext-base \
        && apt-get remove --purge --auto-remove -y apt-transport-https ca-certificates && rm -rf /var/lib/apt/lists/* /etc/apt/sources.list.d/nginx.list \
        \
    # if we have leftovers from building, let's purge them (including extra, unnecessary build deps)
        && if [ -n "$tempDir" ]; then \
            apt-get purge -y --auto-remove \
            && rm -rf "$tempDir" /etc/apt/sources.list.d/temp.list; \
        fi

    # forward request and error logs to docker log collector
    RUN ln -sf /dev/stdout /var/log/nginx/access.log \
        && ln -sf /dev/stderr /var/log/nginx/error.log

    EXPOSE 80

    STOPSIGNAL SIGTERM

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

3、 使用docker build命令通过 Dockerfile 创建镜像souyunku/nginx:jessie-1.13.12

[root@localhost ~]# docker build -t souyunku/nginx:1.13.12-1-stretch . Sending build context to Docker daemon 8.704kB Step 1/9 : FROM debian:stretch-slim
    stretch-slim: Pulling from library/debian
    f2aa67a397c4: Already exists Digest: sha256:b7da507acebb30938b84d38e5adec9755fa3a41d78527ecdc2440c31c4730b11 Status: Downloaded newer image for debian:stretch-slim ...

4、 创建完成后,可以在本地的镜像列表里查找到刚刚创建的镜像

[root@localhost ~]# docker images souyunku/nginx:1.13.12-1-stretch REPOSITORY  TAG                IMAGE ID     CREATED            SIZE
    souyunku/nginx 1.13.12-1-stretch  a5ea477e09b9 About a minute ago 109MB

运行 souyunku/nginx:1.13.12-1-stretch 镜像创建容器

1、 在当前目录的www目录下新建文件index.html输入以下内容

<!DOCTYPE html> <meta charset="utf-8" /> <title>搜云库技术团队,教程 </title> <h1>Hello 搜云库技术团队</h1> <p>搜云库技术团队的网址是:tech.souyunku.com </p>

2、 在当前目录的conf目录下新建文件nginx.conf输入以下内容

 worker_processes 1; events { worker_connections 1024; } http { include       mime.types; default_type  application/octet-stream; sendfile        on; tcp_nopush     on; #keepalive_timeout  0; keepalive_timeout 65; gzip  on; server { listen 80; server_name  localhost; location / { root /www; index  index.html index.htm index.php; } } }

3、 使用下面的命令运行我们刚刚创建的souyunku/nginx:1.13.12-1-stretch镜像

[root@localhost nginx]# docker run -p 80:80 --name my-nginx -v $PWD/www:/www -v $PWD/conf/nginx.conf:/etc/nginx/nginx.conf -v $PWD/logs:/wwwlogs  -d souyunku/nginx:1.13.12-1-stretch  8c232bd675d742a313ea7e222e3ef1ca864c76815083451da7f89118094c6815
<table> <thead> <tr> <th align="left">参数</th> <th align="left">说明</th> </tr> </thead> <tbody> <tr> <td align="left">-p 80:80</td> <td align="left">将容器的 80 端口映射到主机的 80 端口</td> </tr> <tr> <td align="left">--name mynginx</td> <td align="left">将容器命名为 my-nginx</td> </tr> <tr> <td align="left">-v $PWD/www:/www</td> <td align="left">将当前目录下的 www 挂载到容器的 /www</td> </tr> <tr> <td align="left">-v $PWD/conf/nginx.conf:/etc/nginx/nginx.conf</td> <td align="left">将当前目录下的 nginx.conf 挂载到容器的 /etc/nginx/nginx.conf</td> </tr> <tr> <td align="left">-v $PWD/logs:/wwwlogs</td> <td align="left">将主机中当前目录下的 logs 挂载到容器的 /wwwlogs</td> </tr> </tbody> </table>

查看容器启动情况

可以使用 docker ps 命令可以查看容器启动的情况

[root@localhost ~]# docker ps  CONTAINER ID        IMAGE                          COMMAND                  CREATED             STATUS              PORTS                     NAMES 8c232bd675d7 souyunku/nginx:1.13.12-1-stretch "nginx -g 'daemon of…" 6 seconds ago Up 20 seconds 0.0.0.0:80->80/tcp my-nginx
d07b599f11e4        jcdemo/flaskapp "python /src/app.py" 11 hours ago Up 11 hours 0.0.0.0:32768->5000/tcp   hardcore_lalande

通过浏览器访问 http://localhost 输出如下

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