[base image files] All 'docker exec' wrapper scripts now dynamically …

…adjust their flags depending on whether or not they are run on a terminal (#1507)

dockers/docker-database/base_image_files/redis-cli

@@ -1,3 +1,10 @@
 #!/bin/bash
 
-docker exec -it database redis-cli "$@"
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS database redis-cli "$@"

dockers/docker-fpm-frr/base_image_files/vtysh

@@ -1,2 +1,10 @@
 #!/bin/bash
-docker exec -it bgp vtysh "$@"
+
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS bgp vtysh "$@"

dockers/docker-fpm-quagga/base_image_files/vtysh

@@ -1,2 +1,10 @@
 #!/bin/bash
-docker exec -it bgp vtysh "$@"
+
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS bgp vtysh "$@"

dockers/docker-lldp-sv2/base_image_files/lldpctl

@@ -1,2 +1,10 @@
 #!/bin/bash
-docker exec -i lldp lldpctl "$@"
+
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS lldp lldpctl "$@"

dockers/docker-orchagent/base_image_files/swssloglevel

@@ -1,2 +1,10 @@
 #!/bin/bash
-docker exec -i swss swssloglevel "$@"
+
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS swss swssloglevel "$@"

dockers/docker-platform-monitor/base_image_files/sensors

@@ -1,2 +1,10 @@
 #!/bin/bash
-docker exec -i pmon sensors "$@"
+
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS pmon sensors "$@"

dockers/docker-teamd/base_image_files/teamdctl

@@ -1,3 +1,10 @@
 #!/bin/bash
 
-docker exec -i teamd teamdctl "$@"
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS teamd teamdctl "$@"