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Docker Docker Updated May 21, 2026

Docker pull fails with TLS handshake timeout when pulling images from registry

Fix docker pull command hanging/failing with TLS handshake timeout — diagnose whether registry is reachable, certificate issues, or network proxy interfering with TLS negotiation Includes evidence for Docker troubleshooting demand.

TLS handshake timeout when using docker pull
Docker Docker Updated May 21, 2026

Docker 29.5 CLONE_NEWTIME default breaks CNB lifecycle builds

Fix broken CNB/lifecycle container image builds caused by Docker 29.5 enabling CLONE_NEWTIME namespace flag by default Includes evidence for Docker troubleshooting demand.

Docker 29.5 CLONE_NEWTIME default breaks Cloud Native Buildpacks (CNB) lifecycle builds
Docker Docker Updated May 20, 2026

Docker Compose watch permission denied — ignores .dockerignore when listing files

Developer runs docker compose watch and gets permission denied errors on read-only subdirectories that are listed in .dockerignore ignore patterns; the ignore rules are not respected by the watch filesystem listener Includes evidence for Docker troubleshooting demand.

permission denied — docker compose watch reads folders marked as ignored in .dockerignore
Docker Docker Updated May 19, 2026

Docker Only Half-Restores Network When Bridge Assigned to Firewalld Zone

Fix Docker networking half-repair when bridge interfaces move between firewalld zones on Linux, causing partial connectivity loss Includes evidence for Docker troubleshooting demand.

FIXME error in API — Docker only half-restores network interface if bridge is assigned to a different firewalld zone than original
Docker Docker Updated May 19, 2026

Docker Compose Build Fails with Invalid Bake Configuration When additional_contexts Not in depends_on

Fix Docker Compose build failure where a service references another service via additional_contexts but doesn't declare it in depends_on, causing Docker Compose to generate an invalid bake configuration. Includes evidence for Docker troubleshooting demand.

failed to find additional_contexts target — docker compose up --build generates invalid bake config with empty target reference
Docker Docker Updated May 18, 2026

Docker Compose Port Allocation Failure: bind: address already in use

Developers unable to start Docker Compose services because host ports are already bound; need to identify and release conflicting processes or reconfigure port mappings. Includes evidence for Docker troubleshooting demand.

Error starting userland proxy: listen tcp 0.0.0.0:XXXX: bind: address already in use
Docker Docker Updated May 18, 2026

Docker Permission Denied While Connecting to Daemon Socket

Fix Docker permission denied error when running docker commands without sudo; need to add user to docker group Includes evidence for Docker troubleshooting demand.

Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock
Docker Docker Updated May 18, 2026

Docker Compose up --wait Exits 1 Despite Init Containers Completing Successfully

Docker Compose 中使用 --wait 参数等待初始化容器完成时,即使初始化容器成功运行完毕也返回退出码 1,CI/CD 流水线误判部署失败 Includes evidence for Docker troubleshooting demand.

compose up --wait exits 1 on init containers successfully completing
Docker Docker Updated May 17, 2026

Docker Compose Port Already Allocated Despite Container Being Down

Resolve Docker Compose port allocation errors where ports remain bound after container stop/crash, blocking subsequent deployments Includes evidence for Docker troubleshooting demand.

Port is already allocated even with container down - Failed to bind host port
Docker Docker Updated May 17, 2026

Docker 29.5.0 Rootless Daemon Socket Disappears — Cannot Connect to Docker API

User upgraded to Docker 29.5.0 and rootless mode stopped working — docker socket file disappears, can't run any docker commands Includes evidence for Docker troubleshooting demand.

failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory
Docker Docker Updated May 17, 2026

Docker rootless daemon not connecting after update to version 29.5.0

Fix Docker rootless mode broken after upgrading to 29.5.0 — docker.sock missing Includes evidence for Docker troubleshooting demand.

failed to connect to the docker API at unix:///run/user/1000/docker.sock: dial unix /run/user/1000/docker.sock: connect: no such file or directory