Practical Engineering
open-menu closeme
Engineering
github linkedin rss

  • Mysterious Image Pull Failures: "401 Unauthorized" and "Not Found" After Migrating Containerd to v2

    calendar Oct 12, 2025 · 7 min read · container AWS  ·
    Share on: twitter copy

    Early this year, we migrated containerd from v1.7 to v2.0.5. However, we quickly noticed image pulls from Amazon Elastic Container Registry (ECR) began failing for both public and private ECR repositories. For example: 1# public ECR 2FATA[0031] failed to resolve reference …


    Read More

Peng Zhang

Software Engineer

Recent Posts

  • Simplify device path on boot with udev
  • Use KillMode=process with caution: restart loop could deplete resources
  • Spawning a New Process for Socket-Activated Daemons is Error-Prone
  • Be careful making thread-aware syscalls in Go: lock the thread
  • Speed up building Bottlerocket image in AWS CodeBuild
  • Mysterious Image Pull Failures: "401 Unauthorized" and "Not Found" After Migrating Containerd to v2
  • EC2 IMDS is Unstable During Early Boot: Always Retry
  • Who Modified My Program in Bottlerocket?

Tags

LINUX 19 GO 17 ALGORITHMS 8 BOTTLEROCKET 7 INTERVIEW 7 CONTAINER 5 GUIDE 3 DISTRIBUTED-SYSTEM 2 SELINUX 2 SYSTEMD 2 WEB 2 AWS 1 COMPUTER-ARCHITECTURE 1 CONCURRENCY 1
All Tags
ALGORITHMS8 AWS1 BOTTLEROCKET7 COMPUTER-ARCHITECTURE1 CONCURRENCY1 CONTAINER5 CRYPTOGRAPHY1 DATABASES1 DISTRIBUTED-SYSTEM2 DOCKER1 EC21 GO17 GUIDE3 INTERVIEW7 LINUX19 SELINUX2 SHELL1 SYSTEMD2 TESTING1 WEB2
[A~Z][0~9]
Peng Zhang

Copyright 2022-  PENG ZHANG. All Rights Reserved

to-top