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我正在尝试在Dockerfile中执行以下代码：

FROM alpine:3.7
RUN apk update && apk add --no-cache busybox musl prometheus-node-exporter
RUN rc-update add prometheus-node-exporter default
RUN rc-service prometheus-node-exporter start
RUN echo "  - job_name: node \
    # If prometheus-node-exporter is installed, grab stats about the local \
    # machine by default. \
    static_configs: \
      - targets: ['localhost:9100', 'alpine_distro:9100']" >> /etc/prometheus/prometheus.yml

但我的构建返回以下错误：

ERROR: 
unsatisfiable constraints:
  prometheus-node-exporter (missing):
    required by: world[prometheus-node-exporter]

The command '/bin/sh -c apk update && apk add --no-cache busybox musl prometheus-node-exporter' returned a non-zero code: 1

我不习惯 Alpine 包管理器，但我猜我可能没有使用包含prometheus-node-exporter?

还是我错过了其他东西？

4

1 回答 1

2

如果由于某种原因您被迫使用 Alpine 3.7，您可以prometheus-node-exporter从 Alpine 3.13 社区 repo 安装该软件包：

$ sudo docker run -it alpine:3.7
/ # apk add prometheus-node-exporter --repository=http://dl-cdn.alpinelinux.org/alpine/v3.13/community
fetch http://dl-cdn.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
(1/1) Installing prometheus-node-exporter (1.0.1-r0)
Executing prometheus-node-exporter-1.0.1-r0.pre-install
 24% ###################################                                                                                                            
Executing busybox-1.27.2-r11.trigger
OK: 20 MiB in 14 packages
/ # 
/ # 
/ # node_exporter --help
usage: node_exporter [<flags>]
...

它似乎node_exporter只依赖于 musl，所以它很可能在没有特殊问题的情况下运行良好：

/ # ldd /usr/bin/node_exporter
    /lib/ld-musl-x86_64.so.1 (0x7fea4c68a000)
    libc.musl-x86_64.so.1 => /lib/ld-musl-x86_64.so.1 (0x7fea4c68a000)

但是，如果您有该选项，建议您将基本 Alpine 版本升级到 3.13。

于 2021-03-18T19:29:33.023 回答