tools: add ppf-logs

View container logs with -f follow and -n line count. Resolves
dynamic UID and container name per node role.

tools/ppf-logs

@@ -0,0 +1,78 @@
+#!/bin/bash
+# ppf-logs -- view PPF container logs
+#
+# Usage:
+#   ppf-logs [options] [node]
+#
+# Defaults to odin if no node specified.
+
+set -eu
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck disable=SC1091
+. "$SCRIPT_DIR/lib/ppf-common.sh"
+
+# ---------------------------------------------------------------------------
+# Usage
+# ---------------------------------------------------------------------------
+usage() {
+    cat <<EOF
+Usage: ppf-logs [options] [node]
+
+View PPF container logs.
+
+Nodes:
+  odin, cassius, edge, sentinel (default: odin)
+
+Options:
+  -f             follow log output
+  -n LINES       number of lines to show (default: 40)
+  --help         show this help
+  --version      show version
+
+Examples:
+  ppf-logs                  last 40 lines from odin
+  ppf-logs cassius          last 40 lines from cassius
+  ppf-logs -f edge          follow edge worker logs
+  ppf-logs -n 100 sentinel  last 100 lines from sentinel
+EOF
+    exit 0
+}
+
+# ---------------------------------------------------------------------------
+# Parse args
+# ---------------------------------------------------------------------------
+FOLLOW=0
+LINES=40
+NODE=""
+
+while [ $# -gt 0 ]; do
+    case "$1" in
+        --help|-h)    usage ;;
+        --version|-V) echo "ppf-logs $PPF_TOOLS_VERSION"; exit 0 ;;
+        -f)           FOLLOW=1 ;;
+        -n)           shift; LINES="${1:?'-n' requires a number}" ;;
+        -*)           die "Unknown option: $1" ;;
+        *)            NODE="$1" ;;
+    esac
+    shift
+done
+
+NODE="${NODE:-$MASTER}"
+
+# Validate node
+is_master "$NODE" || is_worker "$NODE" || die "Unknown node: $NODE"
+
+CNAME=$(container_name "$NODE")
+
+# ---------------------------------------------------------------------------
+# Build podman logs command
+# ---------------------------------------------------------------------------
+CMD="podman logs --tail $LINES"
+[ "$FOLLOW" -eq 1 ] && CMD="$CMD -f"
+CMD="$CMD $CNAME"
+
+section "$NODE ($CNAME)"
+
+# Run with raw output -- logs go straight to terminal
+podman_cmd "$NODE" "$CMD"