feat(docker): default CMD to mini -dir=/data for service-container use (#9255)

* feat(docker): default CMD to `mini -dir=/data` for service-container use

GitHub Actions service containers cannot pass arguments to the image
entrypoint, so `chrislusf/seaweedfs` is currently unusable as a service
because it requires a `weed` subcommand. Set a sensible default CMD so
the image starts a complete single-process cluster (master, volume,
filer, S3 on :8333, admin UI) out of the box, while still being
overridable by passing any other subcommand at `docker run` /
compose time.

Also add a `mini` case to entrypoint.sh so its logs go to stderr,
matching the existing master/volume/server cases.

Closes #9247

* fix(docker): make `isArgPassed` match `--flag` as well as `-flag`

The Go fla9 library accepts both `-flag` and `--flag` syntax, but
`isArgPassed` only matched the single-dash form. That meant a user
passing `--dir=/foo` to `weed mini` (or `--max=5` to `volume`,
`--volume.max=5` to `server`) would not suppress the entrypoint's
default, and the duplicate flag was silently appended to the command
line — relying on last-wins parsing for correctness. Match double-dash
explicitly so the override is detected for every case in the file.

docker/Dockerfile.go_build

@@ -89,3 +89,8 @@ WORKDIR /data
 
 # Entrypoint will handle permission fixes and user switching
 ENTRYPOINT ["/entrypoint.sh"]
+# Default to a complete single-process cluster (master+volume+filer+S3+admin)
+# so the image is usable out of the box — including in environments like
+# GitHub Actions service containers that cannot pass arguments to the entrypoint.
+# Override with any other subcommand at `docker run` / compose time.
+CMD ["mini", "-dir=/data"]

docker/Dockerfile.local

@@ -40,3 +40,8 @@ WORKDIR /data
 
 # Entrypoint will handle permission fixes and user switching
 ENTRYPOINT ["/entrypoint.sh"]
+# Default to a complete single-process cluster (master+volume+filer+S3+admin)
+# so the image is usable out of the box — including in environments like
+# GitHub Actions service containers that cannot pass arguments to the entrypoint.
+# Override with any other subcommand at `docker run` / compose time.
+CMD ["mini", "-dir=/data"]

docker/Dockerfile.rocksdb_large

@@ -68,3 +68,8 @@ WORKDIR /data
 
 # Entrypoint will handle permission fixes and user switching
 ENTRYPOINT ["/entrypoint.sh"]
+# Default to a complete single-process cluster (master+volume+filer+S3+admin)
+# so the image is usable out of the box — including in environments like
+# GitHub Actions service containers that cannot pass arguments to the entrypoint.
+# Override with any other subcommand at `docker run` / compose time.
+CMD ["mini", "-dir=/data"]

docker/entrypoint.sh

@@ -37,17 +37,21 @@ if [ "$(id -u)" = "0" ]; then
 fi
 
 isArgPassed() {
+  # Match both `-flag` and `--flag` (and their `=value` forms): the Go fla9
+  # library accepts both, and users may pick either form on the CLI.
   arg="$1"
   argWithEqualSign="$1="
+  argDouble="-$1"
+  argDoubleWithEqualSign="-$1="
   shift
   while [ $# -gt 0 ]; do
     passedArg="$1"
     shift
     case $passedArg in
-    "$arg")
+    "$arg"|"$argDouble")
       return 0
       ;;
-    "$argWithEqualSign"*)
+    "$argWithEqualSign"*|"$argDoubleWithEqualSign"*)
       return 0
       ;;
     esac
@@ -95,6 +99,15 @@ case "$1" in
   	exec /usr/bin/weed -logtostderr=true server $ARGS $@
   	;;
 
+  'mini')
+  	ARGS="-dir=/data"
+  	if isArgPassed "-dir" "$@"; then
+  	  ARGS=""
+  	fi
+  	shift
+  	exec /usr/bin/weed -logtostderr=true mini $ARGS $@
+  	;;
+
   'filer')
   	ARGS=""
   	shift