docker學習6：Docker 安裝 Nginx

學習連結：


方法一、透過 Dockerfile構建
建立Dockerfile
首先，建立目錄nginx,用於存放後面的相關東西。
[root@huixuan ~]# mkdir -p ~/nginx/www ~/nginx/logs ~/nginx/conf
[root@huixuan ~]# ls
anaconda-ks.cfg  Dockerfile  nginx  vpd.properties
[root@huixuan ~]# 


www目錄將對映為nginx容器配置的虛擬目錄
logs目錄將對映為nginx容器的日誌目錄
conf目錄裡的配置檔案將對映為nginx容器的配置檔案
進入建立的nginx目錄，建立Dockerfile


[root@huixuan nginx]# cat Dockerfile 
FROM debian:jessie


MAINTAINER NGINX Docker Maintainers "docker-maint@nginx.com"


ENV NGINX_VERSION 1.10.1-1~jessie


RUN apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62 \
        && echo "deb jessie nginx" >> /etc/apt/sources.list \
        && apt-get update \
        && apt-get install --no-install-recommends --no-install-suggests -y \
                                                ca-certificates \
                                                nginx=${NGINX_VERSION} \
                                                nginx-module-xslt \
                                                nginx-module-geoip \
                                                nginx-module-image-filter \
                                                nginx-module-perl \
                                                nginx-module-njs \
                                                gettext-base \
        && rm -rf /var/lib/apt/lists/*


# 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 80 443


CMD ["nginx", "-g", "daemon off;"]
[root@huixuan nginx]# 


透過Dockerfile建立一個映象，替換成你自己的名字
[root@huixuan nginx]# docker build -t nginx .
Sending build context to Docker daemon 4.608 kB
Step 1/7 : FROM debian:jessie
Trying to pull repository docker.io/library/debian ... 
jessie: Pulling from docker.io/library/debian
3d77ce4481b1: Pull complete 
Digest: sha256:f29d0c98d94d6b2169c740d498091a9a8545fabfa37f2072b43a4361c10064fc
Status: Downloaded newer image for docker.io/debian:jessie
 ---> 4eb8376dc2a3
Step 2/7 : MAINTAINER NGINX Docker Maintainers "docker-maint@nginx.com"
 ---> Running in 805eb7f2e4e8
 ---> 1c1e36615d27
Removing intermediate container 805eb7f2e4e8
Step 3/7 : ENV NGINX_VERSION 1.10.1-1~jessie
 ---> Running in d86befe384a8
 ---> f559945b9860
Removing intermediate container d86befe384a8
Step 4/7 : RUN apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62         && echo "deb jessie nginx" >> /etc/apt/sources.list         && apt-get update         && apt-get install --no-install-recommends --no-install-suggests -y                                                 ca-certificates                                                 nginx=${NGINX_VERSION}                                                 nginx-module-xslt                                                 nginx-module-geoip                                                 nginx-module-image-filter                                                 nginx-module-perl                                                 nginx-module-njs                                                 gettext-base         && rm -rf /var/lib/apt/lists/*
 ---> Running in 273e2e414e8f


Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.AEdkYzmRAy --no-auto-check-trustdb --trust-model always --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-jessie-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-jessie-security-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-jessie-stable.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-stretch-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-stretch-security-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-stretch-stable.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-wheezy-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-wheezy-stable.gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys 573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62
gpg: requesting key 7BD9BF62 from hkp server pgp.mit.edu
gpg: key 7BD9BF62: public key "nginx signing key <signing-key@nginx.com>" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
Get:1 jessie InRelease [2856 B]
Ign jessie InRelease
Get:2 jessie-updates InRelease [145 kB]
Get:3 http://security.debian.org jessie/updates InRelease [94.4 kB]
Get:4 jessie/nginx amd64 Packages [12.6 kB]
Get:5 http://security.debian.org jessie/updates/main amd64 Packages [647 kB]
Get:6 jessie Release.gpg [2434 B]
Get:7 jessie-updates/main amd64 Packages [23.1 kB]
Get:8 jessie Release [148 kB]
Get:9 jessie/main amd64 Packages [9064 kB]
Fetched 10.1 MB in 1min 53s (89.3 kB/s)
Reading package lists...
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:


The following packages have unmet dependencies:
 nginx-module-geoip : Depends: nginx (= 1.14.0-1~jessie)
 nginx-module-image-filter : Depends: nginx (= 1.14.0-1~jessie)
 nginx-module-njs : Depends: nginx (= 1.14.0-1~jessie)
 nginx-module-perl : Depends: nginx (= 1.14.0-1~jessie)
 nginx-module-xslt : Depends: nginx (= 1.14.0-1~jessie)
E: Unable to correct problems, you have held broken packages.
The command '/bin/sh -c apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62         && echo "deb jessie nginx" >> /etc/apt/sources.list         && apt-get update         && apt-get install --no-install-recommends --no-install-suggests -y                                                 ca-certificates                                                 nginx=${NGINX_VERSION}                                                 nginx-module-xslt                                                 nginx-module-geoip                                                 nginx-module-image-filter                                                 nginx-module-perl                                                 nginx-module-njs                                                 gettext-base         && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100
[root@huixuan nginx]# 








建立完成後，我們可以在本地的映象列表裡查詢到剛剛建立的映象
方法一本人沒有建立成功。








方法二、docker pull nginx
查詢Docker Hub上的nginx映象
[root@huixuan nginx]# docker search nginx


這裡我們拉取官方的映象




等待下載完成後，我們就可以在本地映象列表裡查到REPOSITORY為nginx的映象。
[root@huixuan nginx]# docker pull nginx
Using default tag: latest
Trying to pull repository docker.io/library/nginx ... 
latest: Pulling from docker.io/library/nginx
f2aa67a397c4: Pull complete 
3c091c23e29d: Pull complete 
4a99993b8636: Pull complete 
Digest: sha256:0edf702c890e9518b95b2da01286509cd437eb994b8d22460e40d72f6b79be49
Status: Downloaded newer image for docker.io/nginx:latest
[root@huixuan nginx]# 




使用nginx映象
執行容器


[root@huixuan nginx]# docker run -p 80:80 --name mynginx -v $PWD/www:/www -v $PWD/conf/nginx.conf:/etc/nginx/nginx.conf -v $PWD/logs:/wwwlogs  -d nginx 
c782a8c09f261929ef26fe5cbcebc85dd9dda76c97475878f77b8a2ad3faa175
/usr/bin/docker-current: Error response from daemon: oci runtime error: container_linux.go:247: starting container process caused "process_linux.go:364: container init caused \"rootfs_linux.go:54: mounting \\\"/root/nginx/conf/nginx.conf\\\" to rootfs \\\"/var/lib/docker/overlay2/a573557a07d294822e22c1a260a9531ba8e77a53a392d16dc9bdddfaf7147398/merged\\\" at \\\"/var/lib/docker/overlay2/a573557a07d294822e22c1a260a9531ba8e77a53a392d16dc9bdddfaf7147398/merged/etc/nginx/nginx.conf\\\" caused \\\"not a directory\\\"\""
: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type.
[root@huixuan nginx]# 


透過下面的命令啟動
[root@huixuan nginx]# docker run -p 80:80 --name mynginx1111 -d nginx 
e5f669143490eb6dd86816da584c375d17f9ca137b8d061e9251536f7172233d
[root@huixuan nginx]# 






命令說明：
-p 80:80：將容器的80埠對映到主機的80埠
--name mynginx：將容器命名為mynginx
-v $PWD/www:/www：將主機中當前目錄下的www掛載到容器的/www
-v $PWD/conf/nginx.conf:/etc/nginx/nginx.conf：將主機中當前目錄下的nginx.conf掛載到容器的/etc/nginx/nginx.conf
-v $PWD/logs:/wwwlogs：將主機中當前目錄下的logs掛載到容器的/wwwlogs
檢視容器啟動情況




[root@huixuan nginx]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES
e5f669143490        nginx               "nginx -g 'daemon ..."   37 seconds ago      Up 36 seconds       0.0.0.0:80->80/tcp   mynginx1111
[root@huixuan nginx]# 


透過瀏覽器訪問