prometheus arm64平臺docker鏡像製作

1. 首先安裝go編譯環境，並配置GOPATH環境變量，之後執行：

$ mkdir -p $GOPATH/src/github.com/prometheus
$ cd $GOPATH/src/github.com/prometheus
$ git clone https://github.com/prometheus/prometheus.git
$ cd prometheus
$ make build

進入修改Dockerfile，修改ARCH，將默認的amd64改爲arm64，並修改prometheus 和promtools文件的路徑，最後改成如下內容：

ARG ARCH="arm64"
ARG OS="linux"
FROM quay.io/prometheus/busybox-${OS}-${ARCH}:latest
LABEL maintainer="The Prometheus Authors <[email protected]>"

ARG ARCH="arm64"
ARG OS="linux"
COPY ./prometheus        /bin/prometheus
COPY ./promtool          /bin/promtool
COPY documentation/examples/prometheus.yml  /etc/prometheus/prometheus.yml
COPY console_libraries/                     /usr/share/prometheus/console_libraries/
COPY consoles/                              /usr/share/prometheus/consoles/

RUN ln -s /usr/share/prometheus/console_libraries /usr/share/prometheus/consoles/ /etc/prometheus/
RUN mkdir -p /prometheus && \
    chown -R nobody:nogroup etc/prometheus /prometheus

USER       nobody
EXPOSE     9090
VOLUME     [ "/prometheus" ]
WORKDIR    /prometheus
ENTRYPOINT [ "/bin/prometheus" ]
CMD        [ "--config.file=/etc/prometheus/prometheus.yml", \
             "--storage.tsdb.path=/prometheus", \
             "--web.console.libraries=/usr/share/prometheus/console_libraries", \
             "--web.console.templates=/usr/share/prometheus/consoles" ]

最後執行docker build -t prometheus .