【解決】docker on WSL2 で、docker image build時にネットワークエラー
環境
docker --version
Docker version 18.09.7, build 2d0083d
現象
- docker image build時にネットワークがおかしくなることがある
Dockerfile
FROM php:7.4-cli-alpine RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer RUN composer global require hirak/prestissimo
- この短いdockerfileのビルドで、ネットワーク周りで3箇所くらい躓きました
結論: dockerdの設定で解決
- /etc/init.d/docker
... # This is the pid file created/managed by start-stop-daemon DOCKER_SSD_PIDFILE=/var/run/$BASE-ssd.pid DOCKER_LOGFILE=/var/log/$BASE.log - DOCKER_OPTS= + DOCKER_OPTS="--dns 8.8.8.8" DOCKER_DESC="Docker" ...
詳細
- 問題おきまくり
composerのinstallerが降ってこない
- 再掲
FROM php:7.4-cli-alpine RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer RUN composer global require hirak/prestissimo
docker image build .
- インストーラが永久に降ってこない
Sending build context to Docker daemon 2.048kB Step 1/3 : FROM php:7.4-cli-alpine ---> 3d0ba8511fe4 Step 2/3 : RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer ---> Running in 36b888336848
- curlをverboseにしてみる
FROM php:7.4-cli-alpine - RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer + RUN curl -vsS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer RUN composer global require hirak/prestissimo
docker image build .
- IPv6で死んでそう
Sending build context to Docker daemon 2.048kB Step 1/3 : FROM php:7.4-cli-alpine ---> 3d0ba8511fe4 Step 2/3 : RUN curl -vsS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer ---> Running in a535056fcb6d * Trying 205.251.192.250:443... * TCP_NODELAY set * Trying 2600:9000:5300:fa00::1:443... * TCP_NODELAY set * Immediate connect fail for 2600:9000:5300:fa00::1: Address not available * Trying 2600:9000:5303:dd00::1:443... * TCP_NODELAY set * Immediate connect fail for 2600:9000:5303:dd00::1: Address not available ...
composer.pharが降ってこない
- v4に固定したら一応installerは降ってきたっぽい
FROM php:7.4-cli-alpine - RUN curl -vsS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer + RUN curl -sS4 https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer RUN composer global require hirak/prestissimo
- が、今度はcomposer.pharが降ってこない
Sending build context to Docker daemon 2.048kB Step 1/3 : FROM php:7.4-cli-alpine ---> 3d0ba8511fe4 Step 2/3 : RUN curl -sS4 https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer ---> Running in acae50461534 All settings correct for using Composer Downloading...
Downloading...はcomposer installerの出力- 永久にこのまま
composerライブラリが降ってこない
- composerをinstallerで入れることを諦める
- composerは単一の実行ファイルなんだから、multistage-buildにして、composerコンテナイメージから引っこ抜いてくればいいじゃない
FROM php:7.4-cli-alpine - RUN curl -sS4 https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer + COPY --from=composer:latest /usr/bin/composer /usr/bin/composer RUN composer global require hirak/prestissimo
docker image .
- 結局ライブラリが降ってこない
Sending build context to Docker daemon 2.048kB
Step 1/3 : FROM php:7.4-cli-alpine
---> 3d0ba8511fe4
Step 2/3 : COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
---> 031f6f2a43f1
Step 3/3 : RUN composer global require hirak/prestissimo
---> Running in ffa5cf38498a
Changed current directory to /root/.composer
Do not run Composer as root/super user! See https://getcomposer.org/root for details
The "http://repo.packagist.org/p/provider-2013%24d43bc94601a2eb4a005d86fcc58809e63661238903da0f3b7c5155a294dd9b7f.json" file could not be downloaded: failed to open stream: Operation timed out
Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info
[Composer\Downloader\TransportException]
The "http://repo.packagist.org/p/provider-2013%24d43bc94601a2eb4a005d86fcc58809e63661238903da0f3b7c5155a294dd9b7f.json" file could not be downloaded: php_network_getaddresses: getaddrinfo failed: Name does not resolve
failed to open stream: php_network_getaddresses: getaddrinfo failed: Name does not resolve
require [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--update-with-all-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...
The command '/bin/sh -c composer global require hirak/prestissimo' returned a non-zero code: 1
解決
- dockerdの--dnsオプションで解決
- 再掲
/etc/init.d/docker でdockerdの起動オプションを設定できる
... # This is the pid file created/managed by start-stop-daemon DOCKER_SSD_PIDFILE=/var/run/$BASE-ssd.pid DOCKER_LOGFILE=/var/log/$BASE.log - DOCKER_OPTS= + DOCKER_OPTS="--dns 8.8.8.8" DOCKER_DESC="Docker" ...
- dockerd再起動
sudo service docker restart service docker status
* Stopping Docker: docker ...done. * Starting Docker: docker ...done.
* Docker is running
- 再度、当初のdockerfileをビルドしてみる
FROM php:7.4-cli-alpine RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer RUN composer global require hirak/prestissimo
docker image build .
Sending build context to Docker daemon 2.048kB Step 1/3 : FROM php:7.4-cli-alpine ---> 3d0ba8511fe4 Step 2/3 : RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer ---> Running in 6819a66cbf5b All settings correct for using Composer Downloading... Composer (version 1.9.1) successfully installed to: /usr/bin/composer Use it: php /usr/bin/composer Removing intermediate container 6819a66cbf5b ---> ce23bdb76548 Step 3/3 : RUN composer global require hirak/prestissimo ---> Running in 90201e9c39ea Changed current directory to /root/.composer Using version ^0.3.9 for hirak/prestissimo ./composer.json has been created Loading composer repositories with package information Updating dependencies (including require-dev) Package operations: 1 install, 0 updates, 0 removals - Installing hirak/prestissimo (0.3.9): DownlDownloadiDownlDownloading (100%) Writing lock file Generating autoload files Removing intermediate container 90201e9c39ea ---> 2db7289c8521 Successfully built 2db7289c8521
- やったー！
所感
- ネットワークは必修科目
- 雰囲気で使っていると足元を掬われる
