refactor: remove special env override from schema

EMQX_NODE_NAME and EMQX_NODE_COOKIE are translated into
EMQX_NODE__NAME and EMQX_NODE__COOKIE

apps/emqx_conf/src/emqx_conf_schema.erl

@@ -257,14 +257,12 @@ fields("node") ->
     [ {"name",
        sc(string(),
           #{ default => "emqx@127.0.0.1"
-           , override_env => "EMQX_NODE_NAME"
            })}
     , {"cookie",
        sc(string(),
           #{ mapping => "vm_args.-setcookie",
              default => "emqxsecretcookie",
-             sensitive => true,
-             override_env => "EMQX_NODE_COOKIE"
+             sensitive => true
            })}
     , {"data_dir",
        sc(string(),

bin/emqx

@@ -454,18 +454,23 @@ case "${COMMAND}" in
         ;;
 esac
 
+## make EMQX_NODE_COOKIE right
+if [ -n "${EMQX_NODE_NAME:-}" ]; then
+    export EMQX_NODE__NAME="${EMQX_NODE_NAME}"
+    unset EMQX_NODE_NAME
+fi
 ## Possible ways to configure emqx node name:
 ## 1. configure node.name in emqx.conf
-## 2. override with environment variable EMQX_NODE_NAME
+## 2. override with environment variable EMQX_NODE__NAME
 ## Node name is either short-name (without '@'), e.g. 'emqx'
 ## or long name (with '@') e.g. 'emqx@example.net' or 'emqx@127.0.0.1'
-NAME="${EMQX_NODE_NAME:-}"
+NAME="${EMQX_NODE__NAME:-}"
 if [ -z "$NAME" ]; then
     if [ "$IS_BOOT_COMMAND" = 'yes' ]; then
         # for boot commands, inspect emqx.conf for node name
         NAME="$(call_hocon -s $SCHEMA_MOD -I "$CONFIGS_DIR/" -c "$RUNNER_ETC_DIR"/emqx.conf get node.name | tr -d \")"
     else
-        vm_args_file="$(latest_vm_args 'EMQX_NODE_NAME')"
+        vm_args_file="$(latest_vm_args 'EMQX_NODE__NAME')"
         NAME="$(grep -E '^-s?name' "${vm_args_file}" | awk '{print $2}')"
     fi
 fi
@@ -486,18 +491,23 @@ export ESCRIPT_NAME="$SHORT_NAME"
 
 PIPE_DIR="${PIPE_DIR:-/$RUNNER_DATA_DIR/${WHOAMI}_erl_pipes/$NAME/}"
 
-COOKIE="${EMQX_NODE_COOKIE:-}"
+## make EMQX_NODE_COOKIE right
+if [ -n "${EMQX_NODE_COOKIE:-}" ]; then
+    export EMQX_NODE__COOKIE="${EMQX_NODE_COOKIE}"
+    unset EMQX_NODE_COOKIE
+fi
+COOKIE="${EMQX_NODE__COOKIE:-}"
 if [ -z "$COOKIE" ]; then
     if [ "$IS_BOOT_COMMAND" = 'yes' ]; then
         COOKIE="$(call_hocon -s $SCHEMA_MOD -I "$CONFIGS_DIR/" -c "$RUNNER_ETC_DIR"/emqx.conf get node.cookie | tr -d \")"
     else
-        vm_args_file="$(latest_vm_args 'EMQX_NODE_COOKIE')"
+        vm_args_file="$(latest_vm_args 'EMQX_NODE__COOKIE')"
         COOKIE="$(grep -E '^-setcookie' "${vm_args_file}" | awk '{print $2}')"
     fi
 fi
 
 if [ -z "$COOKIE" ]; then
-    die "Please set node.cookie in $RUNNER_ETC_DIR/emqx.conf or override from environment variable EMQX_NODE_COOKIE"
+    die "Please set node.cookie in $RUNNER_ETC_DIR/emqx.conf or override from environment variable EMQX_NODE__COOKIE"
 fi
 
 cd "$ROOTDIR"