Latest Blog
Why Does Restarting a Reverse Proxy Invalidate Every Session for One Self-Hosted App?
A session-loss diagnosis covering restart scope, cookie ownership, secret rotation, cache-backed sessions, sticky routing, auth gateways, and recovery.
Why Does a Compose Network Alias Stop Resolving After the Stack Is Recreated Under a New Project Name?
A Compose DNS diagnosis covering project names, network-scoped aliases, external networks, embedded DNS, proxy attachment, stale endpoints, and recreation.
Why Does a Containerized App Revert to UTC Only After an Image Update?
A container-timezone diagnosis covering missing tzdata, TZ variables, localtime mounts, runtime zone data, Compose overrides, image changes, and repeat tests.
Why Does a Self-Hosted App Run the Same Database Migration Twice After Redeployment?
A duplicate-migration diagnosis covering entrypoints, startup order, multiple runners, advisory locks, schema history, checksums, and safe redeployment.
Why Does a Compose Service Use the Wrong Env File Only After a Host Reboot?
A reboot-only environment diagnosis covering precedence, project paths, env_file resolution, systemd, stack variables, process values, and redeployment.
Why Does a Compose Stack Attach a New Empty Named Volume After Redeployment?
A named-volume diagnosis covering project prefixes, stable names, external volumes, removed resources, stack identity, hidden data, and safe reconnection.
Why Does a Container Start Creating Root-Owned Files Only After an Image Update?
An update-only ownership diagnosis covering image users, entrypoint chown behavior, UID and GID drift, runtime overrides, namespaces, volumes, and safe repair.
Why Does One Rotated USB Backup Disk Gain a Suffixed Mount Path After Reboot?
A rotated-disk diagnosis covering duplicate labels, UUIDs, automount suffixes, occupied mountpoints, fstab mappings, startup timing, and safe validation.
