Merge pull request #1157 from JCBird1012/postgres-unix-socket

perf: use PostgreSQL Unix socket for AIO

CHANGELOG.md

@@ -70,6 +70,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- AIO containers now connect to the internal PostgreSQL instance via a Unix domain socket instead of TCP loopback. Users who have `POSTGRES_HOST` explicitly set to `localhost` or `127.0.0.1` in their compose file are automatically migrated to the socket path; any other explicit value (external host/IP) is left untouched. — Thanks [@JCBird1012](https://github.com/JCBird1012)
 - Improved the EPG response cache key. Previously it was based on the raw query string and username, meaning a user default of `epg_days=7` and an explicit `&days=7` URL parameter produced different cache entries for identical output. The key is now built from all resolved effective parameter values (`days`, `prev_days`, `cachedlogos`, `tvg_id_source`) so semantically equivalent requests always share the same cache entry.
 - Improved the HDHR, M3U, and EPG URL builder popovers in the Channels table: each popover now opens with a brief intro sentence describing its purpose. Toggle switches were refactored to use Mantine's native `label` and `description` props (replacing the previous manual `Group`/`Stack`/`Text` layout), giving each switch a properly styled description line beneath its label. Switch alignment was also corrected. Toggles now appear on the left with the label and description stacked to the right, consistent with standard Mantine form layout.
 - Redesigned the User settings modal with a tabbed layout: **Account** (username, email, name, password), **Permissions** (user level, stream limit, channel profiles, mature content filter - admin only), **EPG Defaults** (days forward/back), and **API & XC** (XC password, API key management). Fields are now logically grouped rather than split across two ad-hoc columns.

docker/entrypoint.sh

@@ -80,7 +80,15 @@ if [[ "${DISPATCHARR_ENV:-}" == "modular" && "${POSTGRES_SSL:-}" == "true" ]]; t
 else
     export POSTGRES_PASSWORD="${POSTGRES_PASSWORD:-secret}"
 fi
-export POSTGRES_HOST=${POSTGRES_HOST:-localhost}
+export DISPATCHARR_ENV=${DISPATCHARR_ENV:-aio}
+if [[ "$DISPATCHARR_ENV" == "aio" ]]; then
+    # Use Unix socket for loopback values (unset, localhost, 127.0.0.1)
+    if [[ -z "$POSTGRES_HOST" || "$POSTGRES_HOST" == "localhost" || "$POSTGRES_HOST" == "127.0.0.1" ]]; then
+        export POSTGRES_HOST=/var/run/postgresql
+    fi
+else
+    export POSTGRES_HOST=${POSTGRES_HOST:-localhost}
+fi
 export POSTGRES_PORT=${POSTGRES_PORT:-5432}
 export PG_VERSION=$(ls /usr/lib/postgresql/ | sort -V | tail -n 1)
 export PG_BINDIR="/usr/lib/postgresql/${PG_VERSION}/bin"