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6 Commits

Author SHA1 Message Date
Clemens Schwaighofer
12d8d57bd2 Moved script into wrong folder 2022-03-28 14:58:42 +09:00
Clemens Schwaighofer
18b544a1a4 More info on -i flag 2022-03-28 14:56:16 +09:00
Clemens Schwaighofer
4914e3f367 Update documentation in user create script
Still used old key value separator and was missing new added
user_list.txt file blocks
2022-03-15 14:18:04 +09:00
Clemens Schwaighofer
12ef307bdb Remove alert text if RSA type was selected 2022-03-10 11:14:53 +09:00
Clemens Schwaighofer
d13dd08855 Update -t test option flow, added -i info option
-t test will NOT create an ssh key anymore. The user password list file
gets a .TEST extension

-i info is a new option to just show user/group and ssh key name without
creating anything at all.
Can be used to update old public key names to new format
2022-03-10 11:12:18 +09:00
Clemens Schwaighofer
2e8c30a704 Minor readme updates 2022-03-09 17:42:16 +09:00
3 changed files with 165 additions and 111 deletions

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@@ -16,25 +16,39 @@ chown root. users
chgrp 600 users
```
Alternate download: `git clone http://gitlab-ap.factory.tools/scripts-collections/aws-user-create.git users`
## Folders
Inside the base folder there are
* ssh-keygen for temporary holding the PEM/PUB files
* zip file which holds the created user list, password and PEM/PUB files
## Options
### -t (test)
Run in test mode. This will *NOT* create any groups or users. Nor will it create any ssh key files.
`user_password` output file will be written with `.TEST` extension
### -i (info)
Do not created anything at all, just print out info strings
## User list creation
In the `/root/users/` folder there needs to be a file called '*user_list.txt*'
This is a CSV type file with the following layout
ID | Username | Group | Optional Password | Override host name
-|-|-|-|-
ID | Username | Group | Optional Password | Override host name | Override ssh key type
-|-|-|-|-|-
The ID, Username and Group column must be filled.
For sub groups add them with a *,* The first group is the master group
If the password column is filled, the string from here will be used as the PEM Key password.
If a override hostname is set it will be used instead of `hostname`
If the ssh key type is set, it will override the default *ed25519* type. This is not recommended. Only *rsa* is allowed. This is for setting up backwards compatible lists.
The ID can be any string in any form.
It can also be left empty. It is not used at the moment
@@ -128,7 +142,7 @@ If the user has been created, the creating will be skipped
## Script output
The generated users and the passwords are stored in the '*user_password.txt*' file
The generated users and the passwords are stored in the '*user_password.YYYYMMDD-hhmmss.txt*' file
For above the output will be
```
@@ -154,6 +168,10 @@ This file should be copied localy and then removed from the server
**NOTE** Do not remove the public key data in `ssh-keygen-created-pub/` or the script will create new keys for users in the `user_list.txt` file
## SSH helper
change password or extract public key from pem file
### PEM key password reset
The SSH PEM key password can be reset or changed with

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@@ -2,17 +2,18 @@
# * input file
# user_list.txt
# <ignored id>;<user name>;<group>[;override password][;override hostname]
# <ignored id>;<user name>;<group>[,sub group,sub group];[override password];[override hostname];[override ssh key type]
# lines with # are skipped
# already created users are skipped
# Mandatory: <ignored id>;<user name>;<group>
# * output file
# <date>;<target connect host name>;<hostname>;<username>;<password>
# If already existing PEM key is used then <password> is [ALREADY SET]
#
# * PEM KEY
# <hostname>%<group>%<user>%<ssh key type>.pem
# <hostname>#<group>#<user>#<ssh key type>.pem
# * PUBLIC KEY
# <hostname>%<group>%<user>%<ssh key type>.pem.pub
# <hostname>#<group>#<user>#<ssh key type>.pem.pub
# stored as zip in
# zip/
#
@@ -21,12 +22,16 @@
# They pem pub key must follow the set rules above
# SET TO 1 to TEST [will no create user/group/folder]
TEST=0;
while getopts ":t" opt; do
TEST=0; # no creation except ssh keys
INFO=0; # no creation of anything, just print info strings
while getopts ":ti" opt; do
case "${opt}" in
t|test)
TEST=1;
;;
i|info)
INFO=1;
;;
esac;
done;
# hostname for output file only
@@ -71,7 +76,7 @@ if [ $(stat -c %a .) != "600" ]; then
echo "!!!! RECOMMENDED TO HAVE BASE FOLDER SET TO '600' AND USER 'root' !!!!"
fi;
if [ $(whoami) != "root" ]; then
if [ ${TEST} -eq 0 ]; then
if [ ${TEST} -eq 0 ] && [ ${INFO} -eq 0 ]; then
echo "Script must be run as root user";
exit;
else
@@ -83,122 +88,153 @@ cat "${root_folder}${input_file}" |
while read i; do
# skip rows start with # (comment)
if [[ "${i}" =~ ^\# ]]; then
echo -e "";
continue;
fi;
# make lower case, remove spaces
user=$(echo "${i}" | cut -d ";" -f 2 | tr A-Z a-z | tr -d ' ');
_group=$(echo "${i}" | cut -d ";" -f 3 | tr A-Z a-z | tr -d ' ');
group=$(echo "${_group}" | cut -d "," -f 1);
sub_group="";
sub_group_opt="";
# check if "," inside and extract sub groups
if [ -z "${_group##*,*}" ]; then
sub_group=$(echo "${_group}" | cut -d "," -f 2-);
sub_group_opt=" -G ${sub_group}";
fi;
# override host name, lowercase and spaces removed
_hostname=$(echo "${i}" | cut -d ";" -f 5 | tr A-Z a-z | tr -d ' ');
if [ -z "${_hostname}" ]; then
hostname=${host};
else
# make lower case, remove spaces
user=$(echo "${i}" | cut -d ";" -f 2 | tr A-Z a-z | tr -d ' ');
_group=$(echo "${i}" | cut -d ";" -f 3 | tr A-Z a-z | tr -d ' ');
group=$(echo "${_group}" | cut -d "," -f 1);
sub_group="";
sub_group_opt="";
# check if "," inside and extract sub groups
if [ -z "${_group##*,*}" ]; then
sub_group=$(echo "${_group}" | cut -d "," -f 2-);
sub_group_opt=" -G ${sub_group}";
fi;
# override host name, lowercase and spaces removed
_hostname=$(echo "${i}" | cut -d ";" -f 5 | tr A-Z a-z | tr -d ' ');
if [ -z "${_hostname}" ]; then
hostname=${host};
else
hostname=${_hostname};
fi;
# do we have a password preset
_password=$(echo "${i}" | cut -d ";" -f 4);
# user & group not set
if [ -z "${user}" ] || [ -z "${_group}" ]; then
echo "[!!!!!] Missing user or group entry for ${user}/${_group}";
echo "[ABORT RUN]"
break;
fi;
# add group for each entry in _group
for create_group in ${_group//,/ }; do
if [ ${TEST} -eq 0 ]; then
groupadd -f ${create_group};
else
echo "$> groupadd -f ${create_group}";
fi;
done;
# SSH file name part without folder
ssh_keygen_id="${hostname}${separator}${group}${separator}${user}${separator}${ssh_keytype}.pem";
# the full file including folder name
ssh_keyfile="${root_folder}${ssh_keygen_folder}${ssh_keygen_id}";
# publ file if new
ssh_keyfile_pub="${ssh_keyfile}.pub";
# check existing pub file
ssh_keyfile_check_pub="${root_folder}${ssh_keygen_folder_created_pub}${ssh_keygen_id}.pub";
# check if user is not already created
hostname=${_hostname};
fi;
# do we have a password preset
_password=$(echo "${i}" | cut -d ";" -f 4);
_ssh_keytype=$(echo "${i}" | cut -d ";" -f 6 | tr A-Z a-z | tr -d ' ');
if [ "${_ssh_keytype}" = "rsa" ]; then
ssh_keytype="${_ssh_keytype}";
#echo "[!!] BACKWARDS COMPATIBLE RSA TYPE SELECTION [!!]";
fi;
# user & group not set
if [ -z "${user}" ] || [ -z "${_group}" ]; then
echo "[!!!!!] Missing user or group entry for ${user}/${_group}";
echo "[*** ABORT RUN ***]"
break;
fi;
# SSH file name part without folder
ssh_keygen_id="${hostname}${separator}${group}${separator}${user}${separator}${ssh_keytype}.pem";
# the full file including folder name
ssh_keyfile="${root_folder}${ssh_keygen_folder}${ssh_keygen_id}";
# publ file if new
ssh_keyfile_pub="${ssh_keyfile}.pub";
# check existing pub file
ssh_keyfile_check_pub="${root_folder}${ssh_keygen_folder_created_pub}${ssh_keygen_id}.pub";
if [ ${INFO} -eq 1 ]; then
# test if pub file exists or not, test if user exists
echo -n "User: '${user}:${group}(${sub_group})', SSH: ${ssh_keygen_id}";
if getent passwd ${user} > /dev/null 2>&1; then
echo "-- Skip '${user}:${group}(${sub_group})'";
else
echo "++ Create '${user}:${group}(${sub_group})'";
if [ ${TEST} -eq 0 ]; then
useradd -s /bin/bash -g ${group}${sub_group_opt} -m ${user};
else
echo "$> useradd -s /bin/bash -g ${group}${sub_group_opt} -m ${user}";
fi;
echo -n ", User exists";
fi;
skip_ssh=0;
# if public pem already exists skip creation
if [ ! -f "${ssh_keyfile_check_pub}" ]; then
# Note we only create a password if we need it
# password + store pwgen 10 1 -1
if [ -z "${_password}" ]; then
password=$(printf "%s" $(pwgen 10 1));
else
echo "! Override password set";
password=${_password};
fi;
# create SSH key
echo " > Create ssh key-pair '${ssh_keyfile}'";
if [ -f "${ssh_keyfile_pub}" ]; then
echo -n ", SSH Pub key OK";
fi;
# line break
echo "";
continue;
fi;
# add group for each entry in _group
for create_group in ${_group//,/ }; do
if [ ${TEST} -eq 0 ]; then
groupadd -f ${create_group};
else
echo "$> groupadd -f ${create_group}";
fi;
done;
# check if user is not already created
if getent passwd ${user} > /dev/null 2>&1; then
echo "-- Skip '${user}:${group}(${sub_group})'";
else
echo "++ Create '${user}:${group}(${sub_group})'";
if [ ${TEST} -eq 0 ]; then
useradd -s /bin/bash -g ${group}${sub_group_opt} -m ${user};
else
echo "$> useradd -s /bin/bash -g ${group}${sub_group_opt} -m ${user}";
fi;
fi;
skip_ssh=0;
# if public pem already exists skip creation
if [ ! -f "${ssh_keyfile_check_pub}" ]; then
# Note we only create a password if we need it
# password + store pwgen 10 1 -1
if [ -z "${_password}" ]; then
password=$(printf "%s" $(pwgen 10 1));
else
echo "! Override password set";
password=${_password};
fi;
# create SSH key
echo " > Create ssh key-pair '${ssh_keyfile}'";
if [ ${TEST} -eq 0 ]; then
ssh-keygen \
-t ${ssh_keytype} \
-f "${ssh_keyfile}" \
-C "${hostname}: ${user}@${group}" \
-a 100 -N "${password}"
else
found=$(grep "$(cat ${ssh_keyfile_check_pub})" /home/${user}/.ssh/authorized_keys);
if [ ! -z "${found}" ]; then
skip_ssh=1;
# override previously set with stored one
ssh_keyfile_pub=${ssh_keyfile_check_pub};
echo "-- Skip SSH Key creation: ${ssh_keygen_id}.pub";
else
echo " < Use existing public ssh key '${ssh_keygen_id}.pub'";
# Password already set notification
fi;
password="[ALREADY SET]";
echo "$> ssh-keygen -t ${ssh_keytype} -f ${ssh_keyfile} -C ${hostname}: ${user}@${group} -a 100 -N ${password}";
fi;
if [ ${skip_ssh} -eq 0 ]; then
# write login info to output file
else
found=$(grep "$(cat ${ssh_keyfile_check_pub})" /home/${user}/.ssh/authorized_keys);
if [ ! -z "${found}" ]; then
skip_ssh=1;
# override previously set with stored one
ssh_keyfile_pub=${ssh_keyfile_check_pub};
echo "-- Skip SSH Key creation: ${ssh_keygen_id}.pub";
else
echo " < Use existing public ssh key '${ssh_keygen_id}.pub'";
# Password already set notification
fi;
password="[ALREADY SET]";
fi;
if [ ${skip_ssh} -eq 0 ]; then
# write login info to output file
if [ ${TEST} -eq 0 ]; then
echo $(date +"%F %T")";"${host}";"${_hostname}";"${user}";"${password} >> ${root_folder}${output_file};
# create the SSH foler and authorized access file with correct permissions
echo " > Create .ssh folder";
if [ ${TEST} -eq 0 ]; then
mkdir /home/${user}/.ssh/;
else
echo "$> mkdir /home/${user}/.ssh/";
fi;
echo " > Add public into authorized_keys";
if [ ${TEST} -eq 0 ]; then
cat "${ssh_keyfile_pub}" > /home/${user}/.ssh/authorized_keys;
else
echo "$> cat ${ssh_keyfile_pub} > /home/${user}/.ssh/authorized_keys";
fi;
echo " > Secure folder .ssh and authorized_keys file";
if [ ${TEST} -eq 0 ]; then
chown -R ${user}:${group} /home/${user}/.ssh/;
chmod 700 /home/${user}/.ssh/;
chmod 600 /home/${user}/.ssh/authorized_keys;
else
echo "$> chown -R ${user}:${group} /home/${user}/.ssh/";
echo "$> chmod 700 /home/${user}/.ssh/";
echo "$> chmod 600 /home/${user}/.ssh/authorized_keys";
fi;
else
echo $(date +"%F %T")";"${host}";"${_hostname}";"${user}";"${password} >> ${root_folder}${output_file}".TEST";
fi;
# create the SSH foler and authorized access file with correct permissions
echo " > Create .ssh folder";
if [ ${TEST} -eq 0 ]; then
mkdir /home/${user}/.ssh/;
else
echo "$> mkdir /home/${user}/.ssh/";
fi;
echo " > Add public into authorized_keys";
if [ ${TEST} -eq 0 ]; then
cat "${ssh_keyfile_pub}" > /home/${user}/.ssh/authorized_keys;
else
echo "$> cat ${ssh_keyfile_pub} > /home/${user}/.ssh/authorized_keys";
fi;
echo " > Secure folder .ssh and authorized_keys file";
if [ ${TEST} -eq 0 ]; then
chown -R ${user}:${group} /home/${user}/.ssh/;
chmod 700 /home/${user}/.ssh/;
chmod 600 /home/${user}/.ssh/authorized_keys;
else
echo "$> chown -R ${user}:${group} /home/${user}/.ssh/";
echo "$> chmod 700 /home/${user}/.ssh/";
echo "$> chmod 600 /home/${user}/.ssh/authorized_keys";
fi;
fi;
done;
# End before anything because this is just info run
if [ ${INFO} -eq 1 ]; then
exit;
fi;
# zip everything and remove data in ssh key folder, delete output file with passwords
zip -r \
"${root_folder}${output_zip_folder}${output_zip}" \

View File

@@ -1 +1 @@
#user_id;user_name;group,subgroup;optional override password;optional override hostname
#user_id;user_name;group,subgroup;override password;override hostname;override ssh type