现象
docker build时，如果里面有在容器安装软件的命令，会报错
# 步骤 1: 选择一个稳定且包含完整工具链的基础镜像
# openjdk:8-jdk-buster 是一个基于 Debian 10 (Buster) 的镜像，稳定且软件源丰富
FROM openjdk:8-jdk-buster
# ==================== [核心修改] ====================
# 更换为国内镜像源，这将使后续的 apt 命令不再需要任何代理，
# 并且速度飞快、连接稳定。
RUN sed -i 's/deb.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list && \
sed -i 's/security.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list
# ===================================================
# 步骤 2: 设置环境变量，避免 apt-get 在构建过程中出现交互式提示
ENV DEBIAN_FRONTEND=noninteractive
# 步骤 3: 更新软件源并安装所有需要的工具
# 将所有安装命令合并到-一个 RUN 指令中，以减少镜像层数
# 同时，在安装后清理 apt 缓存，以减小最终镜像体积
RUN apt-get update && \
apt-get install -y --no-install-recommends \
net-tools \
vim \
tree \
grep \
coreutils \
curl \
wget \
iputils-ping \
tcpdump \
dnsutils && \
rm -rf /var/lib/apt/lists/*
# 说明：
# - net-tools: 提供 netstat 命令
# - vim: 强大的文本编辑器
# - tree: 树形目录查看工具
# - grep: 文本搜索工具 (通常已内置，显式安装确保存在)
# - coreutils: 提供 tail, find 等核心工具 (通常已内置，显式安装确保存在)
# - curl, wget: 网络请求工具
# - iputils-ping: 提供 ping 命令
# - tcpdump: 网络抓包工具
# - dnsutils: 提供 nslookup, dig 等DNS查询工具
# 步骤 4: (可选) 设置工作目录
WORKDIR /apps
# 步骤 5: (可选) 设置默认启动命令
# 这里设置为 bash，这样 `docker run -it` 启动容器后会直接进入交互式 shell
CMD ["bash"]
报错如下：
base git:(develop) ✗ docker build -t iflow-openjdk8:latest .
[+] Building 31.4s (6/7) docker:orbstack
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 1.87kB 0.0s
=> [internal] load metadata for docker.io/library/openjdk:8-jdk-buster 0.7s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [1/4] FROM docker.io/library/openjdk:8-jdk-buster@sha256:9babc11daaca6927dd9977d9e945b27550ddaa20a4de7743527b23fe3a079523 0.0s
=> CACHED [2/4] RUN sed -i 's/deb.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list && sed -i 's/security.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list 0.0s
=> ERROR [3/4] RUN apt-get update && apt-get install -y --no-install-recommends net-tools vim tree grep coreutils curl wget iputils-ping tcpdump dnsutils && rm -rf /var/lib/ 30.6s
------
> [3/4] RUN apt-get update && apt-get install -y --no-install-recommends net-tools vim tree grep coreutils curl wget iputils-ping tcpdump dnsutils && rm -rf /var/lib/apt/lists/*:
30.51 Err:1 http://mirrors.tuna.tsinghua.edu.cn/debian buster InRelease
30.51 Could not connect to 192.168.5.2:7890 (192.168.5.2), connection timed out
30.51 Err:2 http://mirrors.tuna.tsinghua.edu.cn/debian-security buster/updates InRelease
30.51 Unable to connect to 192.168.5.2:7890:
30.51 Err:3 http://mirrors.tuna.tsinghua.edu.cn/debian buster-updates InRelease
30.51 Unable to connect to 192.168.5.2:7890:
30.52 Reading package lists...
30.54 W: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/debian/dists/buster/InRelease Could not connect to 192.168.5.2:7890 (192.168.5.2), connection timed out
30.54 W: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/debian-security/dists/buster/updates/InRelease Unable to connect to 192.168.5.2:7890:
30.54 W: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/debian/dists/buster-updates/InRelease Unable to connect to 192.168.5.2:7890:
30.54 W: Some index files failed to download. They have been ignored, or old ones used instead.
30.55 Reading package lists...
30.55 Building dependency tree...
30.55 Reading state information...
30.56 E: Unable to locate package net-tools
30.56 E: Unable to locate package vim
30.56 E: Unable to locate package tree
30.56 E: Unable to locate package tcpdump
30.56 E: Unable to locate package dnsutils
------
Dockerfile:19
--------------------
18 | # 同时，在安装后清理 apt 缓存，以减小最终镜像体积
19 | >>> RUN apt-get update && \
20 | >>> apt-get install -y --no-install-recommends \
21 | >>> net-tools \
22 | >>> vim \
23 | >>> tree \
24 | >>> grep \
25 | >>> coreutils \
26 | >>> curl \
27 | >>> wget \
28 | >>> iputils-ping \
29 | >>> tcpdump \
30 | >>> dnsutils && \
31 | >>> rm -rf /var/lib/apt/lists/*
32 |
--------------------
ERROR: failed to solve: process "/bin/sh -c apt-get update && apt-get install -y --no-install-recommends net-tools vim tree grep coreutils curl wget iputils-ping tcpdump dnsutils && rm -rf /var/lib/apt/lists/*" did not complete successfully: exit code: 100
原因及解决方案
原因是旧的docker配置中硬编码了proxy
➜ ~ cd .docker
➜ .docker ls
buildx cli-plugins config.json config.json.bak contexts daemon.json devenvironments features.json machine run scan scout
➜ .docker cat config.json.bak
{
"auths": {},
"credsStore": "osxkeychain",
"currentContext": "orbstack",
"proxies": {
"default": {
"httpProxy": "http://192.168.5.2:7890",
"httpsProxy": "http://192.168.5.2:7890"
}
}
}%将上面的proxies删掉，然后重启orbstack就可以解决问题
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