在 Docker 映像中找不到文件

Question

虽然我不是真的喜欢 Docker，但我正在努力解决找不到文件的问题。 我添加了一个 ls 命令来显示文件是否真的存在。有时是，有时不是，但总是出现“文件丢失”错误。

我在 Win10-2004 上运行 Docker Desktop Community V 2.0.0.3 (31259)

构建库时出错：

Dockerfile：

ADD ./build_opus.sh /usr/local/sbin/

#added for debugging
RUN cd /usr/local/sbin && ls

RUN IFS=" " &&
for arch in $TARGET_ARCHS;
do
./build_opus.sh ${arch};
done

输出：

---> Using cache 
---> 4ddfdc31b266 Step 28/40 : ADD ./build_opus.sh /usr/local/sbin/ 
---> Using cache ---> e4c4ac7fea69 
Step 29/40 : RUN cd /usr/local/sbin && ls 
---> Using cache 
---> 6fda1595d295 Step 30/40 : RUN IFS=" " && for arch in $TARGET_ARCHS; do .usr/local/sbin/build_opus.sh ${arch}; done 
---> Running in 2fcf560d0dbc 
/bin/sh: 1: .usr/local/sbin/build_opus.sh: not found 
/bin/sh: 1: .usr/local/sbin/build_opus.sh: not found 
/bin/sh: 1: .usr/local/sbin/build_opus.sh: not found 
/bin/sh: 1: .usr/local/sbin/build_opus.sh: not found 
The command '/bin/sh -c IFS=" " && for arch in $TARGET_ARCHS; do .usr/local/sbin/build_opus.sh ${arch}; done' returned a non-zero code: 127

有人有想法吗？

编辑：添加完整的 Docker 文件

完整的 Docker 文件：

    FROM ubuntu:latest

##############################
# Download dependencies
##############################

RUN dpkg --add-architecture i386 && \
    apt-get -y upgrade && \
    apt-get -y dist-upgrade && \
    apt-get update

RUN DEBIAN_FRONTEND=noninteractive apt-get -y install \
    software-properties-common git curl bzip2 gcc g++ binutils make autoconf openssl \
    libssl-dev ant libopus0 libpcre3 libpcre3-dev build-essential nasm libc6:i386 libstdc++6:i386 zlib1g:i386 \
    openjdk-8-jdk unzip

##############################
# Configuration
##############################

# ENV TARGET_ARCHS "armeabi armeabi-v7a x86 mips arm64-v8a x86_64 mips64"
ENV TARGET_ARCHS "armeabi-v7a x86 arm64-v8a x86_64" 
ENV ANDROID_NDK_DOWNLOAD_URL "https://dl.google.com/android/repository/android-ndk-r12b-linux-x86_64.zip"
ENV ANDROID_SDK_DOWNLOAD_URL "https://dl.google.com/android/repository/tools_r25.2.5-linux.zip"
ENV ANDROID_SETUP_APIS "23 25"
ENV ANDROID_BUILD_TOOLS_VERSION 25
ENV ANDROID_TARGET_API 23

#ENV PJSIP_DOWNLOAD_URL "http://www.pjsip.org/release/2.7.1/pjproject-2.7.1.tar.bz2"
ENV PJSIP_DOWNLOAD_URL "https://github.com/pjsip/pjproject/archive/2.9.tar.gz"



ENV SWIG_DOWNLOAD_URL "http://prdownloads.sourceforge.net/swig/swig-3.0.7.tar.gz"

ENV OPENSSL_DOWNLOAD_URL "https://www.openssl.org/source/openssl-1.0.2g.tar.gz"

ENV OPENH264_DOWNLOAD_URL "https://github.com/cisco/openh264/archive/v1.7.0.tar.gz"
ENV OPENH264_TARGET_NDK_LEVEL 23

ENV OPUS_DOWNLOAD_URL "http://downloads.xiph.org/releases/opus/opus-1.2.1.tar.gz"
ENV OPUS_ANDROID_MK_DOWNLOAD_URL "https://trac.pjsip.org/repos/raw-attachment/ticket/1904/Android.mk"

ENV PATH /sources/android_ndk:$PATH

##############################
# Download sources
##############################

RUN mkdir -p /sources/android_ndk && \
    mkdir -p /sources/android_sdk && \
    mkdir -p /sources/pjsip && \
    mkdir -p /sources/swig && \
    mkdir -p /sources/openssl && \
    mkdir -p /sources/opus && \
    mkdir -p /sources/openh264

# Download Android NDK
RUN cd /sources/android_ndk && \
    curl -L -# -o ndk.zip "$ANDROID_NDK_DOWNLOAD_URL" && \
    unzip ndk.zip && \
    rm -rf ndk.zip && \
    mv android-*/* ./

# Download Android SDK & APIs
RUN cd /sources/android_sdk && \
    curl -L -# -o sdk.zip "$ANDROID_SDK_DOWNLOAD_URL" && \
    unzip sdk.zip

RUN cd /sources/android_sdk/tools && \
    ALL_SDK=$(./android list sdk --all) && \
    IFS=" " && \
    for api in $ANDROID_SETUP_APIS; \
    do \
      PACKAGE=$(echo "${ALL_SDK}" | grep "API ${api}" | head -n 1 | awk '{print $1}' | cut -d'-' -f 1); \
      echo yes | ./android update sdk --all --filter ${PACKAGE} --no-ui --force; \
    done && \
    PACKAGE=$(echo "${ALL_SDK}" | grep "Android SDK Platform-tools" | head -n 1 | awk '{print $1}' | cut -d'-' -f 1) && \
    echo yes | ./android update sdk --all --filter ${PACKAGE} --no-ui --force && \
    PACKAGE=$(echo "${ALL_SDK}" | grep "Build-tools" | grep "${BUILD_TOOLS_VERSION}" | head -n 1 | awk '{print $1}' | cut -d'-' -f 1) && \
    echo yes | ./android update sdk --all --filter ${PACKAGE} --no-ui --force

# Download Pjsip
RUN cd /sources/pjsip && \
    curl -L -# -o pjsip.tar.gz "$PJSIP_DOWNLOAD_URL" && \
    tar xzvf pjsip.tar.gz && \
    rm -rf pjsip.tar.gz && \
    mv pjproject-*/* ./

# Download Swig
RUN cd /sources/swig && \
    curl -L -# -o swig.tar.gz "$SWIG_DOWNLOAD_URL" && \
    tar xzf swig.tar.gz && \
    rm -rf swig.tar.gz && \
    mv swig-*/* ./

# Download OpenSSL
RUN cd /sources/openssl && \
    curl -L -# -o openssl.tar.gz "$OPENSSL_DOWNLOAD_URL" && \
    tar xzf openssl.tar.gz && \
    rm -rf openssl.tar.gz && \
    mv openssl-*/* ./

# Download Opus
RUN cd /sources/opus && \
    curl -L -# -o opus.tar.gz "$OPUS_DOWNLOAD_URL" && \
    tar xzf opus.tar.gz && \
    rm -rf opus.tar.gz && \
    mv opus-*/* ./ && \
    mkdir ./jni && \
    cd ./jni && \
    curl -L -# -o Android.mk "$OPUS_ANDROID_MK_DOWNLOAD_URL"

# Download OpenH264
RUN cd /sources/openh264 && \
    curl -L -# -o openh264.tar.gz "$OPENH264_DOWNLOAD_URL" && \
    tar xzf openh264.tar.gz && \
    rm -rf openh264.tar.gz && \
    mv openh264-*/* ./

##############################
# Build swig, openssl, opus, openh264
##############################

RUN mkdir -p /output/openssl/ && \
    mkdir -p /output/openh264/ && \
    mkdir -p /output/pjsip && \
    mkdir -p /output/opus

# Build opus

ADD ./build_opus.sh /usr/local/sbin/

RUN cd /usr/local/sbin && ls

RUN IFS=" " && \
    for arch in $TARGET_ARCHS; \
    do \
      ./build_opus.sh ${arch}; \
    done

# Build swig
RUN cd /sources/swig && \
    ./configure && \
    make && \
    make install

# Build OpenH264
ADD ./build_openh264.sh /usr/local/sbin/
RUN cd /usr/local/sbin & ls

RUN IFS=" " && \
    for arch in $TARGET_ARCHS; \
    do \
      ./build_openh264.sh ${arch}; \
    done

# Build openssl
ADD ./build_openssl.sh /usr/local/sbin/
RUN IFS=" " && \
    for arch in $TARGET_ARCHS; \
    do \
      build_openssl.sh ${arch}; \
    done

# Build pjsip
ADD ./build_pjsip.sh /usr/local/sbin/
RUN IFS=" " && \
    for arch in $TARGET_ARCHS; \
    do \
      build_pjsip.sh ${arch}; \
    done

# Dist
RUN mkdir -p /dist/android/src/main && \
    mv /output/pjsip/* /dist/android/src/main && \
    rm -rf /dist/android/src/main/java/org/pjsip/pjsua2/app

RUN IFS=" " && \
    for arch in $TARGET_ARCHS; \
    do \
      mv /output/openh264/${arch}/lib/libopenh264.so /dist/android/src/main/jniLibs/${arch}/; \
    done

.sh 文件启动 docker：

#!/bin/bash
set -e
IMAGE_NAME="react-native-pjsip-builder/android"
CONTAINER_NAME="react-native-pjsip-builder-${RANDOM}"
rm -rf ./dist/android;
mkdir -p ./dist/;
docker build -t react-native-pjsip-builder/android ./android/;
docker run --name ${CONTAINER_NAME} ${IMAGE_NAME} bin/true
docker cp ${CONTAINER_NAME}:/dist/android ./dist/android
docker rm ${CONTAINER_NAME}

Answer 1

您将WORKDIR 与cd 混淆了。在 docker 中，有一个概念叫做 WORKDIR，它的作用类似于 cd。它将目录位置从此后更改为所有即将出现的指令。使用 cd 只会在指令到达下一层时更改该特定层中的目录，目录位置将恢复为WORKDIR。

因此，为了正常运行，您要么需要使用脚本的绝对路径，要么使用WORKDIR更改然后运行脚本。

使用绝对路径：

RUN IFS=" " &&
for arch in $TARGET_ARCHS;
do
/usr/local/sbin/build_opus.sh ${arch};
done

使用“工作目录”：

WORKDIR /usr/local/sbin/
RUN IFS=" " &&
for arch in $TARGET_ARCHS;
do
./build_opus.sh ${arch};
done

参考：

1. WORKDIR in docker
2. difference between RUN cd and WORKDIR in Dockerfile