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Installazione Apache Docker

Metodo 1, docker pull httpd

Cerca Docker Hub Immagine httpd su:

Puoi vedere altre versioni di httpd tramite Sort by, la versione predefinita è la più recente httpd:latest

Inoltre, possiamo utilizzare il comando docker search httpd per visualizzare le versioni disponibili:

w3codebox@w3codebox:~/apache$ docker search httpd
NOME                         DESCRIZIONE                 STELLE UFFICIALE AUTOMATICO
httpd                          The Apache HTTP Server ..    524   [OK]       
centos/httpd                                              7                [OK]
rgielen/httpd-image-php5       Docker image for Apache...   1                [OK]
microwebapps/httpd-frontend    Httpd frontend allowing...   1                [OK]
lolhens/httpd                  Apache httpd 2 Server        1                [OK]
publici/httpd                  httpd:latest                 0                [OK]
publicisworldwide/httpd        The Apache httpd webser...   0                [OK]
rgielen/httpd-image-simple     Docker image for simple...   0                [OK]
solsson/httpd                  Derivatives of the offi...   0                [OK]
rgielen/httpd-image-drush      Apache HTTPD + Drupal S...   0                [OK]
learninglayers/httpd                                                    0                                            [OK]
sohrabkhan/httpd                                                    Docker httpd + php5.6  (...)                                    0                                            [OK]
aintohvri/docker-httpd                                            Apache HTTPD Docker ext...                                            0                                            [OK]
alizarion/httpd                                                    httpd on centos with mo...                                                    0                                                    [OK]
...

这里我们拉取官方的镜像

w3codebox@w3codebox:~/apache$ docker pull httpd

等待下载完成后,我们就可以在本地镜像列表里查到REPOSITORY为httpd的镜像。

w3codebox@w3codebox:~/apache$ docker images httpd
REPOSITORY                           TAG                                   IMAGE ID                                   CREATED                                   SIZE
httpd                               latest                   da1536b4ef14                           23 secondi fa                           195.1 MB

方法二、通过 Dockerfile 构建

创建 Dockerfile

首先,创建目录apache,用于存放后面的相关东西。

w3codebox@w3codebox:~$ mkdir -p ~/apache/www ~/apache/logs ~/apache/conf

www 目录将映射为 apache 容器配置的应用程序目录。

logs 目录将映射为 apache 容器的日志目录。

conf 目录里的配置文件将映射为 apache 容器的配置文件。

进入创建的 apache 目录,创建 Dockerfile。

FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
#RUN groupadd -r www-data && useradd -r --create-home -g www-data www-data
ENV HTTPD_PREFIX /usr/local/apache2
ENV PATH $PATH:$HTTPD_PREFIX/bin
RUN mkdir -p "$HTTPD_PREFIX" \
    && chown www-data:www-data "$HTTPD_PREFIX"
WORKDIR $HTTPD_PREFIX
# install httpd runtime dependencies
# https://httpd.apache.org/docs/2.4/install.html#requirements
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        libapr1 \
        libaprutil1 \
        libaprutil1-ldap \
        libapr1-dev \
        libaprutil1-dev \
        libpcre++0 \
        libssl1.0.0 \
    && rm -r /var/lib/apt/lists/*
ENV HTTPD_VERSION 2.4.20
ENV HTTPD_BZ2_URL https://www.apache.org/dist/httpd/httpd-$HTTPD_VERSION.tar.bz2
RUN buildDeps=' \
        ca-certificates \
        curl \
        bzip2 \
        gcc \
        libpcre++-dev \
        libssl-dev \
        make \
    ' \
    set -x \
    && apt-get update \
    && apt-get install -y --no-install-recommends $buildDeps \
    && rm -r /var/lib/apt/lists/* \
    \
    && curl -fSL "$HTTPD_BZ2_URL" -o httpd.tar.bz2 \
    && curl -fSL "$HTTPD_BZ2_URL.asc" -o httpd.tar.bz2.asc \
# vedere https://httpd.apache.org/download.cgi#verify
    && export GNUPGHOME="$(mktemp -d)" \
    && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys A93D62ECC3C8EA12DB220EC934EA76E6791485A8 \
    && gpg --batch --verify httpd.tar.bz2.asc httpd.tar.bz2 \
    && rm -r "$GNUPGHOME" httpd.tar.bz2.asc \
    \
    && mkdir -p src \
    && tar -xvf httpd.tar.bz2 -C src --strip-components=1 \
    && rm httpd.tar.bz2 \
    && cd src \
    \
    && ./configure \
        --prefix="$HTTPD_PREFIX" \
        --enable-mods-shared=reallyall \
    && make -j"$(nproc)" \
    && make install \
    \
    && cd .. \
    && rm -r src \
    \
    && sed -ri \
        -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
        -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
        "$HTTPD_PREFIX/conf/httpd.conf" \
    \
    && apt-get purge -y --auto-remove $buildDeps
COPY httpd-foreground /usr/local/bin/
EXPOSE 80
CMD ["httpd-foreground"]

Il file Dockerfile con COPY httpd-foreground /usr/local/bin/ copia il file httpd-foreground nella directory corrente all'interno dell'immagine, utilizzandolo come script di avvio del servizio httpd, quindi dobbiamo creare un file di script locale chiamato httpd-foreground

#!/bin/bash
set -e
# Apache diventa arrabbiato per i file PID preesistenti
rm -f /usr/local/apache2/logs/httpd.pid
exec httpd -DFOREGROUND

Dai permessi eseguibili al file httpd-foreground.

w3codebox@w3codebox:~/apache$ chmod +x httpd-foreground

Crea un'immagine tramite Dockerfile, sostituisci con il tuo nome.

w3codebox@w3codebox:~/apache$ docker build -t httpd .

Dopo la creazione, possiamo trovare l'immagine appena creata nella lista delle immagini locali.

w3codebox@w3codebox:~/apache$ docker images httpd
REPOSITORY                           TAG                                   IMAGE ID                                   CREATED                                   SIZE
httpd                               latest                   da1536b4ef14                           23 secondi fa                           195.1 MB

Usa l'immagine apache

Esegui il container

docker run -p 80:80 -v $PWD/www/:/usr/local/apache2/htdocs/ -v $PWD/conf/httpd.conf:/usr/local/apache2/conf/httpd.conf -v $PWD/logs/:/usr/local/apache2/logs/ -d httpd

Spiegazione del comando:

-p 80:80: Mappa il porto 80 del container al porto 80 dell'host.

-v $PWD/www/:/usr/local/apache2/htdocs/: Monta la directory www attuale dell'host sul /usr/local/apache2/htdocs/ del container.

-v $PWD/conf/httpd.conf:/usr/local/apache2/conf/httpd.conf: Monta il file conf/httpd.conf attuale della directory del host nella directory /usr/local/apache2/conf/httpd.conf del container.

-v $PWD/logs/:/usr/local/apache2/logs/: Monta la directory logs attuale del host nella directory /usr/local/apache2/logs/ del container.

Visualizza lo stato di avvio del container:

w3codebox@w3codebox:~/apache$ docker ps
ID CONTAINER IMAGINE COMANDO ... PORTI ... NOMI
79a97f2aac37 httpd "httpd-foreground" ... 0.0.0.0:80->80/tcp sharp_swanson

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