如何在不需要任何PHP腳本的情況下運行PHP-CLI容器？

我一直在嘗試使用Docker構建一個PHP cli容器& Docker Compose，並且我希望它保持活動狀態，而不需要在其中運行任何PHP腳本。如何在不需要任何PHP腳本的情況下運行PHP-CLI容器？

我已經盡了自己的Dockerfile：

FROM ubuntu:16.04 
ENV PATH="/root/.composer/vendor/bin:${PATH}" 

RUN apt-get update && \ 
    apt-get -y -qq install software-properties-common \ 
    xvfb \ 
    locales && \ 
    locale-gen en_US.UTF-8 && \ 
    export LC_ALL=en_US.UTF-8 && \ 
    export LANG=en_US.UTF-8 && \ 
    add-apt-repository ppa:ondrej/php && \ 
    apt-get update && \ 
    DEBIAN_FRONTEND=noninteractive apt-get -y --allow-unauthenticated install \ 
    php7.1-curl \ 
    php7.1-cli \ 
    php7.1-bcmath \ 
    php7.1-json \ 
    php7.1-intl \ 
    php7.1-mbstring \ 
    php7.1-mcrypt \ 
    php7.1-mysql \ 
    php7.1-xml \ 
    php7.1-xsl \ 
    php7.1-zip \ 
    curl \ 
    git \ 
    wget \ 
    pkg-config && \ 
    apt-get clean && \ 
    apt-get autoremove && \ 
    rm -rf /var/lib/apt/lists/* 

COPY config/
RUN sh /usr/local/bin/install.sh 
ENTRYPOINT bash -C '/entrypoint.sh';'bash' 
CMD ["php", "-a"]

而這一等太（從main PHP images擴展）：

FROM php:7-cli-alpine 
ENV PATH="/root/.composer/vendor/bin:${PATH}" 
COPY config/
RUN sh /usr/local/bin/install.sh 
WORKDIR /var/wwww 
CMD ["php", "-a"]

的docker-compose.yml有什麼，但這樣的：

version: '3.3' 
services: 
    webserver: 
     build: 
     context: . 
     restart: on-failure 
     env_file: .env 
     environment: 
      UID: ${UID} 
      GID: ${GID}

最後here是完整的存儲庫一切如果你想嘗試一下。

什麼問題？通過運行docker-compose up --build --force-recreate構建容器後，它以代碼0退出，但docker-composer logs無用，因爲它什麼都沒說。

看看在命令行輸出如下（爲第二Dockerfile對這個職位，第一個是幾乎相同的有更多的東西）：

$ docker-compose up --build --force-recreate 
Building webserver 
Step 1/6 : FROM php:7-cli-alpine 
7-cli-alpine: Pulling from library/php 
90f4dba627d6: Pull complete 
623a0217e4bc: Pull complete 
ecbf507e7e3c: Pull complete 
79a82dee0025: Pull complete 
457716c6bb05: Pull complete 
62e36287ffd0: Pull complete 
507e98c003bc: Pull complete 
b25e699baa37: Pull complete 
Digest: sha256:ecae911bd22279d4883ffdc631afddc434641c67eedf49914fc62dafb5329663 
Status: Downloaded newer image for php:7-cli-alpine 
---> 1e563ea5f552 
Step 2/6 : ENV PATH "/root/.composer/vendor/bin:${PATH}" 
---> Running in 29b65c1d7def 
---> d11c62bb5cf5 
Removing intermediate container 29b65c1d7def 
Step 3/6 : COPY config/
---> e42022d1de91 
Step 4/6 : RUN sh /usr/local/bin/install.sh 
---> Running in 749230f42e9e 
All settings correct for using Composer 
Downloading... 

Composer (version 1.5.2) successfully installed to: /usr/local/bin/composer 
Use it: php /usr/local/bin/composer 

Changed current directory to /root/.composer 
Loading composer repositories with package information 
Updating dependencies 
Package operations: 21 installs, 0 updates, 0 removals 
    - Installing hirak/prestissimo (0.3.7): Downloading (100%) 
    - Installing symfony/stopwatch (v3.3.10): Downloading (100%) 
    - Installing symfony/process (v3.3.10): Downloading (100%) 
    - Installing symfony/polyfill-php72 (v1.5.0): Downloading (100%) 
    - Installing paragonie/random_compat (v2.0.11): Downloading (100%) 
    - Installing symfony/polyfill-php70 (v1.5.0): Downloading (100%) 
    - Installing symfony/options-resolver (v3.3.10): Downloading (100%) 
    - Installing symfony/finder (v3.3.10): Downloading (100%) 
    - Installing symfony/filesystem (v3.3.10): Downloading (100%) 
    - Installing symfony/event-dispatcher (v3.3.10): Downloading (100%) 
    - Installing psr/log (1.0.2): Downloading (100%) 
    - Installing symfony/debug (v3.3.10): Downloading (100%) 
    - Installing symfony/polyfill-mbstring (v1.5.0): Downloading (100%) 
    - Installing symfony/console (v3.3.10): Downloading (100%) 
    - Installing php-cs-fixer/diff (v1.1.0): Downloading (100%) 
    - Installing gecko-packages/gecko-php-unit (v2.2): Downloading (100%) 
    - Installing doctrine/lexer (v1.0.1): Downloading (100%) 
    - Installing doctrine/annotations (v1.5.0): Downloading (100%) 
    - Installing composer/semver (1.4.2): Downloading (100%) 
    - Installing friendsofphp/php-cs-fixer (v2.7.1): Downloading (100%) 
    - Installing squizlabs/php_codesniffer (3.1.0): Downloading (100%) 
Writing lock file 
Generating optimized autoload files 
Cache directory does not exist (cache-vcs-dir): 
Clearing cache (cache-repo-dir): /root/.composer/cache/repo 
Clearing cache (cache-files-dir): /root/.composer/cache/files 
Clearing cache (cache-dir): /root/.composer/cache 
All caches cleared. 
---> ff310362f4a5 
Removing intermediate container 749230f42e9e 
Step 5/6 : WORKDIR /var/wwww 
---> fe10fd52d6b6 
Removing intermediate container 6e472a693c0c 
Step 6/6 : CMD php -a 
---> Running in 789688d1346a 
---> b1286e96580b 
Removing intermediate container 789688d1346a 

Successfully built b1286e96580b 
Successfully tagged dockerlamp_webserver:latest 
Recreating dockerlamp_webserver_1 ... 
Recreating dockerlamp_webserver_1 ... done 
Attaching to dockerlamp_webserver_1 
webserver_1 | Interactive shell 
webserver_1 | 
dockerlamp_webserver_1 exited with code 0 

$ docker-compose logs 
Attaching to dockerlamp_webserver_1 
webserver_1 | Interactive shell 
webserver_1 |

我怎麼能保持容器運行時無需運行PHP腳本？

注意：您可能會問爲什麼不建但的是我不需要任何的網絡服務器，因爲容器將僅用於命令行項目（這是一個WIP）

來源

2017-10-13 ReynierPM

您正在運行php -a這是一個REPL，它需要交互式TTY。所以，你需要啓用那些在您撰寫

version: '3.3' 
services: 
    webserver: 
     build: 
     context: . 
     restart: on-failure 
     env_file: .env 
     environment: 
      UID: ${UID} 
      GID: ${GID} 
     tty: true 
     stdin_open: true

以後如果需要連接到它運行的命令，你將需要使用泊塢窗

docker attach <containernameOrID>

來源

2017-10-13 20:23:54

如何在不需要任何PHP腳本的情況下運行PHP-CLI容器？

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