树莓派下使用 Docker 运行失败

[zywj]

树莓派4B+，操作系统是 Ubuntu 20.04

[yongqianme]

从报错看，omnedge 不在docker里面，你能进去container ，直接运行一下omniedge，看看直接的了报错？

[zywj]

我在本地改一下 Docker 的 entrypoint，加了个 ls 命令，不是很明白了。能 ls 但是执行的时候找不到。

[yongqianme]

尝试本地build一下？
Dockerfile是： https://github.com/omniedgeio/omniedge-docker/blob/main/Dockerfile
里面的ARG TARGETARCH改成ARG TARGETARCH=arm64

[yongqianme]

这个dockerfile 很简单，就是下载arm64版本的omniedge

RUN apk update \
    apk add --no-cache wget unzip \
    && wget https://github.com/omniedgeio/omniedge/releases/download/v${VERSION}/omniedge-v${VERSION}-${TARGETARCH}.zip

你可以进去container里面试试：

wget https://github.com/omniedgeio/omniedge/releases/download/v0.2.4/omniedge-v0.2.4-arm64.zip

[zywj]

这是我本地的 Dockerfile

FROM alpine:3.16

ARG TARGETARCH=arm64
ARG VERSION=0.2.4

RUN apk update \
    && apk add bash
RUN apk update \
    apk add --no-cache wget unzip \
    && wget https://github.com/omniedgeio/omniedge/releases/download/v${VERSION}/omniedge-v${VERSION}-${TARGETARCH}.zip
RUN unzip omniedge-v${VERSION}-${TARGETARCH}.zip -d /usr/sbin
RUN rm omniedge-v${VERSION}-${TARGETARCH}.zip

RUN chmod +x /usr/sbin/omniedge
RUN mkdir /lib64 && ln -s /lib/libc.musl-x86_64.so.1 /lib64/ld-linux-x86-64.so.2

COPY entrypoint /usr/sbin/entrypoint
RUN chmod +x /usr/sbin/entrypoint

ENTRYPOINT ["/usr/sbin/entrypoint"]

这是 entrypoint

#!/bin/sh

set -e
cp /proc/sys/kernel/random/uuid /etc/machine-id

if [ ! -d /dev/net ]; then mkdir /dev/net; fi
if [ ! -e /dev/net/tun ]; then mknod /dev/net/tun c 10 200; fi

# echo 'net.ipv4.ip_forward = 1' | tee -a /etc/sysctl.conf
# sysctl -p /etc/sysctl.conf
login() {
  sleep 5
  whoami
  ls -l /usr/sbin/
  omniedge login -s ${OMNIEDGE_SECURITYKEY}
}

connect() {
  sleep 5
  omniedge join -n ${OMNIEDGE_VIRUTALNETWORK_ID}
}

login && connect

下面是输出结果：

root@ubuntu:~/omniedge-docker# docker logs -f omniedgex
root
total 11008
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 add-shell -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 addgroup -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 adduser -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 arping -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 brctl -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 chpasswd -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 chroot -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 crond -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 delgroup -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 deluser -> /bin/busybox
-rwxr-xr-x    1 root     root           451 Oct  2 15:30 entrypoint
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 ether-wake -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 fbset -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 killall5 -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 loadfont -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 nanddump -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 nandwrite -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 nbd-client -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 ntpd -> /bin/busybox
-rwxr-xr-x    1 root     root      11267248 Oct  2 06:49 omniedge
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 partprobe -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 rdate -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 rdev -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 readahead -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 remove-shell -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 rfkill -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 sendmail -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 setfont -> /bin/busybox
lrwxrwxrwx    1 root     root            12 Aug  9 08:49 setlogcons -> /bin/busybox
/usr/sbin/entrypoint: line 15: omniedge: not found
root@ubuntu:~/omniedge-docker# cat Dockerfile 

[yongqianme]

-rwxr-xr-x 1 root root 11267248 Oct 2 06:49 omniedge

omniedge是有的，进去container，试试运行看什么报错

[zywj]

docker exec -it ... /bin/sh 进不去，因为容器运行就直接 Exit 了。不知道如何进入没有运行的容器

[yongqianme]

比较快速简单的方法就是运行一个空的 alpine:3.16 container，然后dockerfile的命令手动跑一下，看看什么报错

[gf4t47]

我在raspberrypi 4/ubuntu 22.10 里面跑这个docker container 遇到一样的错误。
根据这个stackoverflow 的回答，修复了dockerfile

RUN apk update \
&& apk add libc6-compat \
&& apk add bash

但是启动docker container 以后报了下面的错误：

time="2022-11-28T05:23:15Z" level=info msg="You are in mode: prod"
time="2022-11-28T05:23:15" level=info msg="successful to login"
time="2022-11-28T05:23:20Z" level=info msg="You are in mode: prod"
time="2022-11-28T05:23:21" level=info msg="Success to join virtual network"
time="2022-11-28T05:23:21" level=info msg="Start to connect omniedge"
2022-11-28T05:23:21 [edge_utils.c:1943] INFOAdding supernode[0] = prod-useast.edgecomputing.network:443
2022-11-28T05:23:21 [tuntap_linux.c:135] ERRORtuntap ioctl(TUNSETIFF, IFF_TAP) error: Operation not permitted[-1]
time="2022-11-28T05:23:21" level=error msg="fail to open TUN/TAP device"