[Docker] [Alpine] 5 things you should try if the container fails to boot

README.md

5 things you should try if the container fails to boot

1. Reboot the service.

   sudo systemctl restart docker.service

2. Try "hello-world".

   docker pull "hello-world"
   docker run --rm hello-world

3. Check time stamp of the host.

   date

4. Check ntp (time sync) of the container.

   docker run --rm alpine date

   If not synced, try.

   docker run --rm --privileged alpine date
   docker run --rm --privileged alpine apk update
   

5. Try other network.

   docker run --rm --network=host alpine apk update

---

Error examples

$ docker run --rm alpine apk update
fetch https://dl-cdn.alpinelinux.org/alpine/v3.17/main/armhf/APKINDEX.tar.gz
ERROR: https://dl-cdn.alpinelinux.org/alpine/v3.17/main: temporary error (try again later)
WARNING: Ignoring https://dl-cdn.alpinelinux.org/alpine/v3.17/main: No such file or directory
fetch https://dl-cdn.alpinelinux.org/alpine/v3.17/community/armhf/APKINDEX.tar.gz
ERROR: https://dl-cdn.alpinelinux.org/alpine/v3.17/community: temporary error (try again later)
WARNING: Ignoring https://dl-cdn.alpinelinux.org/alpine/v3.17/community: No such file or directory
2 errors; 15 distinct packages available

$ # Time is out of sync
$ docker run --rm alpine date
Sun Jan  0 00:00:00  1900