公鑰不可用：NO_PUBKEY F76221572C52609D

Question

對於以下 docker 文件：

FROM microsoft/aspnetcore-build:1.0.1

ENV DOTNET_SKIP_FIRST_TIME_EXPERIENCE 1

# This is FROM openjdk:8-jdk  
RUN apt-get update && apt-get install -y --no-install-recommends \
        bzip2 \
        unzip \
        xz-utils \
                apt-transport-https \
    && rm -rf /var/lib/apt/lists/*

RUN echo 'deb http://deb.debian.org/debian jessie-backports main' > /etc/apt/sources.list.d/jessie-backports.list
RUN echo 'deb https://apt.dockerproject.org/repo debian-jessie main' > /etc/apt/sources.list.d/docker.list

# Default to UTF-8 file.encoding
ENV LANG C.UTF-8

# add a simple script that can auto-detect the appropriate JAVA_HOME value
# based on whether the JDK or only the JRE is installed
RUN { \
        echo '#!/bin/sh'; \
        echo 'set -e'; \
        echo; \
        echo 'dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"'; \
    } > /usr/local/bin/docker-java-home \
    && chmod +x /usr/local/bin/docker-java-home

ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64

ENV JAVA_VERSION 8u111
ENV JAVA_DEBIAN_VERSION 8u111-b14-2~bpo8+1

# see https://bugs.debian.org/775775
# and https://github.com/docker-library/java/issues/19#issuecomment-70546872
ENV CA_CERTIFICATES_JAVA_VERSION 20140324

RUN set -x \
    && apt-get update \
    && apt-get install -y \
        openjdk-8-jdk="$JAVA_DEBIAN_VERSION" \
        ca-certificates-java="$CA_CERTIFICATES_JAVA_VERSION" \
    && rm -rf /var/lib/apt/lists/* \
    && [ "$JAVA_HOME" = "$(docker-java-home)" ]

# see CA_CERTIFICATES_JAVA_VERSION notes above
RUN /var/lib/dpkg/info/ca-certificates-java.postinst configure

##### END OF THE JDK

##### START Jenkins Slave Node Config settings

# Create Jenkins User
RUN useradd jenkins -m -s /bin/bash

RUN chown -R jenkins /home/jenkins
RUN chgrp -R jenkins /home/jenkins
RUN chown -R jenkins /tmp
RUN chgrp -R jenkins /tmp

# Add the jenkins user to sudoers
RUN echo "jenkins    ALL=(ALL)    ALL" >> etc/sudoers

# Must install docker to create docker images from docker container. Inception. Head... hurts.
# container must be called with -v /var/run/docker.sock:/var/run/docker.sock
RUN apt-get install -y --no-install-recommends apt-transport-https ca-certificates
RUN apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
RUN apt-get update && apt-get install -y --no-install-recommends \
    docker-engine \
&& rm -rf /var/lib/apt/lists/*

# This must run after the docker install 
RUN gpasswd -a jenkins docker

USER jenkins

---

構建映像在第 38 行的命令失敗

RUN set -x \
    && apt-get update \
    && apt-get install -y \
        openjdk-8-jdk="$JAVA_DEBIAN_VERSION" \
        ca-certificates-java="$CA_CERTIFICATES_JAVA_VERSION" \
    && rm -rf /var/lib/apt/lists/* \
    && [ "$JAVA_HOME" = "$(docker-java-home)" ]

---

有錯誤：

W：GPG 錯誤： https://apt.dockerproject.org debian-jessie InRelease：無法驗證以下簽名，因為公鑰不可用：NO_PUBKEY F76221572C52609D

 W: There is no public key available for the following key IDs: AA8E81B4331F7F50 W: Failed to fetch http://deb.debian.org/debian/dists/jessie-backports/main/binary-amd64/Packages

404 未找到

E: Some index files failed to download. They have been ignored, or old ones used instead. ERROR: Service 'slavedo.net' failed to build: The command '/bin/sh -c set -x && apt-get update && apt-get install -y openjdk-8-jdk="$JAVA_DEBIAN_VERSION" ca-certificates-java="$CA_CERTIFICATES_JAVA_VERSION" && rm -rf

/var/lib/apt/lists/* && [ "$JAVA_HOME" = "$(docker-java-home)" ]' 返回非零代碼：100

---

如何解決公鑰錯誤？

Answer 1

這里有幾個問題：

1) W: GPG 錯誤: https://apt.dockerproject.org debian-jessie InRelease: 由於公鑰不可用，無法驗證以下簽名：NO_PUBKEY F76221572C52609D W: 以下簽名沒有可用的公鑰密鑰 ID：AA8E81B4331F7F50

解決方案：

將 keyserver 添加操作移動到RUN echo 'deb http://deb.debian.org/debian jessie-backports main' > /etc/apt/sources.list.d/jessie-backports.list AA8E81B4331F7F50的位置也如下：

RUN apt-get install -y --no-install-recommends apt-transport-https ca-certificates
RUN apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
RUN apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys AA8E81B4331F7F50

2) W: 無法獲取http://deb.debian.org/debian/dists/jessie-backports/main/binary-amd64/Packages 404 Not Found
E: 部分索引文件下載失敗。 它們已被忽略，或者使用舊的。

解決方案：

microsoft/aspnetcore-build:1.0.1基於debian8 ，並且您想使用默認不在 apt 存儲庫中的openjdk8 。 所以你使用deb http://deb.debian.org/debian jessie-backports main 。

不幸的是，如果您檢查http://ftp.debian.org/debian/dists/ ，您會發現jessie-backports已被刪除。 所以你必須像下一個那樣切換到存檔的 url（評論舊的 url，只需使用 url 下一個）：

#RUN echo 'deb http://deb.debian.org/debian jessie-backports main' > /etc/apt/sources.list.d/jessie-backports.list
RUN echo 'deb http://archive.debian.org/debian jessie-backports main' > /etc/apt/sources.list.d/jessie-backports.list

同時，您必須在執行上述操作后添加 next 以解決release-file-expired-problem ：

RUN echo "Acquire::Check-Valid-Until \"false\";" > /etc/apt/apt.conf.d/100disablechecks

3) 環境 JAVA_VERSION 8u111
ENV JAVA_DEBIAN_VERSION 8u111-b14-2~bpo8+1

解決方案：

不知道你是如何得到這個版本的，但事實上在更改歸檔 jessie backports 之后，你會得到如下內容：

root@2ecaeffec483:/etc/apt# apt-cache policy openjdk-8-jdk
openjdk-8-jdk:
  Installed: (none)
  Candidate: 8u171-b11-1~bpo8+1
  Version table:
     8u171-b11-1~bpo8+1 0
        100 http://archive.debian.org/debian/ jessie-backports/main amd64 Packages

因此，您必須更改為下一個：

ENV JAVA_VERSION 8u171
ENV JAVA_DEBIAN_VERSION 8u171-b11-1~bpo8+1

Answer 2

此腳本將自動添加最缺少的 GPG 密鑰：

#!/bin/bash

set -e

for PUBKEY in $(apt-get update 2>&1 | grep NO_PUBKEY | awk '{print $NF}')
do
 wget -q "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x${PUBKEY}" -O - | sed -n '/BEGIN/,/END/p' | apt-key add - 2>/dev/null
done

唯一的先決條件是安裝wget 。 它也可以與curl一起使用。

Answer 3

要修復以下問題：

W: There is no public key available for the following key IDs:

AA8E81B4331F7F50

只需使用以下代碼：

sudo apt-get install debian-keyring debian-archive-keyring

sudo apt-key update

sudo apt-get update