Merge pull request #5044 from StackStorm/py2_warning_st2ctl

Add deprecation warning on st2ctl start if st2/python is python 2.x

Author: amanda11

CHANGELOG.rst

@@ -27,6 +27,9 @@ Added
   Python 2. (new feature) #5043
 
   Contributed by @amanda11
+* Added deprecation warning to st2ctl, if st2 python version is Python 2. (new feature) #5044 
+
+  Contributed by @amanda11
 
 
 Changed

st2common/bin/st2ctl

@@ -83,10 +83,18 @@ function validate_in_components() {
   fi
 }
 
+function check_python_version() {
+  PYTHON_VERSION=$(/opt/stackstorm/st2/bin/python --version 2>&1 | awk -F"[. ]" '{print $2}')
+  if [ "${PYTHON_VERSION}" = "2" ]; then
+    echo -e "\e[33mDeprecation warning: Support for python 2 will be removed in future StackStorm releases. Please ensure that all packs used are python 3 compatible. Your StackStorm installation may be upgraded from python 2 to python 3 in future platform releases. It is recommended to plan the manual migration to a python 3 native platform, e.g. Ubuntu 18.04 LTS or CentOS/RHEL 8. \e[0m\n"
+  fi
+}
+
 function st2start() {
   for COM in ${COMPONENTS}; do
     service_manager ${COM} start
   done
+  check_python_version
 }
 
 function st2stop() {
@@ -213,6 +221,7 @@ case ${1} in
     must_be_root
     validate_in_components ${2}
     service_manager ${2} restart
+    check_python_version
     ;;
   reopen-log-files)
     must_be_root
@@ -225,6 +234,7 @@ case ${1} in
   reload)
     register_content ${@:2}
     exit_code=$?
+    check_python_version
     getpids
     # Note: We want to preserve st2-register-content "fail on failure" behavior
     # and propagate the correct exit code and exit with non zero on failure