Give each tmux pane in start-airflow a title to make it clear what …

…is running (#46931)

scripts/in_container/bin/run_tmux

@@ -43,6 +43,9 @@ export TMUX_SESSION="Airflow"
 # Start New Session with our name
 tmux new-session -d -s "${TMUX_SESSION}"
 
+tmux set -g pane-border-format "#{pane_index}: #{@airflow_component}"
+tmux set -g pane-border-status "top"
+
 # Enable mouse interaction with tmux. This allows selecting between the panes
 # by clicking with the mouse and also allows scrolling back through terminal
 # output with the mouse wheel.
@@ -54,10 +57,12 @@ tmux send-keys -t 'Main' 'bash' C-m 'clear' C-m
 
 tmux split-window -v
 tmux select-pane -t 1
+tmux set-option -p @airflow_component Scheduler
 tmux send-keys 'airflow scheduler' C-m
 
 tmux split-window -h
 tmux select-pane -t 2
+tmux set-option -p @airflow_component FastAPI
 
 if [[ ! ${USE_AIRFLOW_VERSION=} =~ ^2\..*  ]]; then
     if [[ ${DEV_MODE=} == "true" ]]; then
@@ -69,6 +74,7 @@ fi
 
 tmux split-window -h
 tmux select-pane -t 3
+tmux set-option -p @airflow_component Webserver
 if [[ ${DEV_MODE=} == "true" ]]; then
     tmux send-keys 'airflow webserver -d' C-m
 else
@@ -77,21 +83,25 @@ fi
 
 tmux select-pane -t 0
 tmux split-window -h
+tmux set-option -p @airflow_component Triggerer
 tmux send-keys 'airflow triggerer' C-m
 
 if [[ ${INTEGRATION_CELERY} == "true" ]]; then
     tmux select-pane -t 0
     tmux split-window -h
+    tmux set-option -p @airflow_component "Celery Worker"
     tmux send-keys 'airflow celery worker' C-m
 fi
 if [[ ${INTEGRATION_CELERY} == "true" && ${CELERY_FLOWER} == "true" ]]; then
     tmux select-pane -t 3
     tmux split-window -h
+    tmux set-option -p @airflow_component Flower
     tmux send-keys 'airflow celery flower' C-m
 fi
 if [[ ${AIRFLOW__CORE__EXECUTOR} == "airflow.providers.edge.executors.edge_executor.EdgeExecutor" ]]; then
     tmux select-pane -t 0
     tmux split-window -h
+    tmux set-option -p @airflow_component EdgeExec
 
     # Ensure we are not leaking any DB connection information to Edge Worker process
     tmux send-keys 'unset AIRFLOW__DATABASE__SQL_ALCHEMY_CONN' C-m
@@ -109,6 +119,7 @@ fi
 if [[ ${STANDALONE_DAG_PROCESSOR} == "true" ]]; then
     tmux select-pane -t 3
     tmux split-window -h
+    tmux set-option -p @airflow_component "DAG Pocessor"
     tmux send-keys 'airflow dag-processor' C-m
 fi