more bootstrap.sh

bootstrap.sh

@@ -4,7 +4,19 @@
 #### FUNCTIONS
 #
 
+# $group_name $group_number
+group_exists () {
+    grep -q "^$1:[^:]*:$2:" /etc/group
+}
+
+# $user_name $user_number
+user_exists () {
+    grep -q "^$1:[^:]*:$2:$2:" /etc/passwd
+}
+
+# $group_name $group_number
 system_groupadd () {
+    if group_exists "$1" "$2" ; then return 0 ; fi
     echo groupadd -r -g "$2" "$1"
     rc=$?
     if [ $rc -ne 0 ] ; then
@@ -13,7 +25,9 @@ system_groupadd () {
     fi
 }
 
+# $user_name $user_number
 system_useradd () {
+    if user_exists "$1" "$2" ; then return 0 ; fi
     system_groupadd "${@}"
     echo useradd -r -u "$2" -g "$2" -s /bin/sh -m "$1"
     rc=$?
@@ -23,6 +37,7 @@ system_useradd () {
     fi
 }
 
+# $groups $user_name
 add_groups_to_user () {
     echo usermod -aG "$1" "$2"
     rc=$?
@@ -37,7 +52,11 @@ add_groups_to_user () {
 #### PROCESS
 #
 
-###########?????????? VERIFY RUNNING AS ROOT
+# Make sure we're running as root
+if [ $(id -u) -ne 0 ] ; then
+    echo "ERROR - Not running as root!" 1>&2
+    exit 100
+fi
 
 # Create system group hpf-sudo for normal sudo users
 system_groupadd hpf-sudo 700
@@ -51,6 +70,6 @@ add_groups_to_user "hpf-sudo-np" hpf-ans
 
 # Create /etc/sudoers.d/hpetersenfamily
 f="/etc/sudoers.d/hpf"
-echo curl -o "$f" https://gitea.admin-a.hpetersenfamily.com/heath/ansible/raw/branch/main/etc_sudoers_d_hpf
+echo curl -o "$f" "https://gitea.admin-a.hpetersenfamily.com/heath/ansible/raw/branch/main/etc_sudoers_d_hpf"
 echo chown root:root "$f"
 echo chmod u=rw,g=r,o= "$f"