Docker Builds Cannot Resolve VPN-Only Package Registry Despite Working Container Networking
A developer's container can reach a VPN-only package registry at runtime, but the image build step fails with a DNS resolution error. This blocks installing private dependencies during builds.
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Similar Problems
surfaced semanticallyTurborepo Docker Builds Fail to Resolve Internal Workspace Packages
A developer building a Turborepo monorepo inside Docker hits an npm registry 404 error when installing an internal workspace package, because the Dockerfile copies files and runs a plain npm install without handling local workspace resolution.
Docker Desktop Strips Proxy Credentials on Manual Proxy Configuration
Developers behind authenticated corporate proxies find Docker Desktop fails to pull images even after configuring proxy settings via UI, environment variables, and daemon.json — with manual proxy configuration silently stripping the username and password on save. This leaves engineers on proxied networks unable to pull images through any documented configuration path.
Intermittent DNS Failures Break Alpine-Based GitLab CI Jobs
A developer hits an intermittent 'DNS: transient error' installing packages in an Alpine-based GitLab CI job, even though a rerun without changes succeeds and the package URL is reachable locally. This points to unreliable DNS resolution inside GitLab runner containers, a hard-to-diagnose class of CI flakiness.
Docker containers lose DNS resolution after host reboot due to stale resolv.conf
A long-time Docker user on Debian reports that after a host reboot, containers start successfully but cannot reach the internet because they fail to pick up the host resolv.conf; restarting the containers a few minutes later fixes it. This points to a startup-ordering race between Docker and the host DNS/networking services that surfaces only after a reboot, not during normal operation.
Tailscale Exit Node Routing Breaks Local Docker Service Access
Developers running Tailscale with an exit node on their work machine lose access to locally bound Docker services (e.g., PostgreSQL on 127.0.0.1) because Tailscale's exit node routing intercepts all traffic, including localhost. The issue affects developers who need simultaneous VPN-routed outbound traffic and local container networking. A configuration flag (--exit-node-allow-lan-access) exists as a partial workaround, suggesting this is more a documentation/UX gap than a missing product category.
Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.