我正在尝试了解Dockerfile https://hub.docker.com/r/rdsubhas/tor-privoxy-alpine/~/dockerfile/,其中包含RUN
执行程序,并带有
apk --update add privoxy tor@testing runit@testing
我想检查一下我对如何使用apk
命令的理解,因此我尝试如下在Alpine环境中打开终端:
docker run -it --rm alpine:latest /bin/ash
[之后我简单地运行apk
以查看其用法:
/ # apk
apk-tools 2.6.8, compiled for x86_64.
usage: apk COMMAND [-h|--help] [-p|--root DIR] [-X|--repository REPO]
[-q|--quiet] [-v|--verbose] [-i|--interactive] [-V|--version]
[-f|--force] [-U|--update-cache] [--progress] [--progress-fd FD]
[--no-progress] [--purge] [--allow-untrusted] [--wait TIME]
[--keys-dir KEYSDIR] [--repositories-file REPOFILE] [--no-network]
[--no-cache] [--arch ARCH] [--print-arch] [ARGS]...
The following commands are available:
add Add PACKAGEs to 'world' and install (or upgrade) them, while
ensuring that all dependencies are met
del Remove PACKAGEs from 'world' and uninstall them
fix Repair package or upgrade it without modifying main dependencies
update Update repository indexes from all remote repositories
info Give detailed information about PACKAGEs or repositores
search Search package by PATTERNs or by indexed dependencies
upgrade Upgrade currently installed packages to match repositories
cache Download missing PACKAGEs to cache and/or delete unneeded files
from cache
version Compare package versions (in installed database vs. available) or
do tests on literal version strings
index Create repository index file from FILEs
fetch Download PACKAGEs from global repositories to a local directory
audit Audit the directories for changes
verify Verify package integrity and signature
dot Generate graphviz graphs
policy Show repository policy for packages
stats Show statistics about repositories and installations
Global options:
-h, --help Show generic help or applet specific help
-p, --root DIR Install packages to DIR
-X, --repository REPO Use packages from REPO
-q, --quiet Print less information
-v, --verbose Print more information (can be doubled)
-i, --interactive Ask confirmation for certain operations
-V, --version Print program version and exit
-f, --force Do what was asked even if it looks dangerous
-U, --update-cache Update the repository cache
--progress Show a progress bar
--progress-fd FD Write progress to fd
--no-progress Disable progress bar even for TTYs
--purge Delete also modified configuration files (pkg
removal) and uninstalled packages from cache (cache
clean)
--allow-untrusted Install packages with untrusted signature or no
signature
--wait TIME Wait for TIME seconds to get an exclusive repository
lock before failing
--keys-dir KEYSDIR Override directory of trusted keys
--repositories-file REPOFILE Override repositories file
--no-network Do not use network (cache is still used)
--no-cache Read uncached index from network
--arch ARCH Use architecture with --root
--print-arch Print default arch and exit
This apk has coffee making abilities.
事实是,我在此文档中没有看到--update
选项(仅--update-cache
)。
[我怀疑是apk --update add [package]
只是apk update
后跟apk add [package]
的简写。有人可以确认吗?
简而言之:
To get the latest list of available packages, use the update command.
类似于您在apt-get update
之前执行的Debian apt-get install my_package
。
来自https://wiki.alpinelinux.org/wiki/Alpine_Linux_package_management#Update_the_Package_list:
提取
更新软件包列表
远程存储库随软件包的添加和升级而变化。要获取可用软件包的最新列表,请使用update命令。该命令从每个存储库下载APKINDEX.tar.gz并将其存储在本地缓存中,通常是/ var / cache / apk /,/ var / lib / apk /或/ etc / apk / cache /。
apk更新
提示:如果使用远程存储库,最好在执行添加或升级命令之前进行更新。这样,您就知道您正在使用最新的可用软件。