213 lines
6.1 KiB
Perl
213 lines
6.1 KiB
Perl
#!/usr/bin/perl
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use warnings;
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use strict;
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# provision.pl
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# script to provision a tilde instance
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#
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# This script is intended to be run on a fresh
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# OpenBSD install
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#
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# gashapwn
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# Nov 2020
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my $DEV_FLAG = shift || "";
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my $GIT_REPO = 'https://git.lain.church/gashapwn/lyadmin.git';
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my $GIT_BRANCH = length($DEV_FLAG) > 0 ? "-b gasha-branch " : "";
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my ($REPO_DIR) = $GIT_REPO =~ /\/([^\/]*)\.git$/;
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my $INST_DIR = "/tilde";
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my $SVC_ACCT = "_lingyind";
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my $pwuid;
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my $admin_un;
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my $admin_home_dir;
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# Given a username... prompts and creates that user
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sub create(){
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my $id;
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my $username;
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my $user_email;
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my $pub_key;
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my $p0;
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# Prompts...
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$p0 = [
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"Enter username: ",
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"Enter pubkey: "
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];
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# read in username and validate
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printf($p0->[0]);
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$username = <STDIN>;
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chomp $username;
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if(length($username) > 31 || !($username =~ /^[A-Za-z][A-Za-z0-9]+$/)){
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printf("%s is an INVALID username\n", $id);
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die ("oh no");
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}
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# read in pub key
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printf($p0->[1]);
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$pub_key = <STDIN>;
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chomp $pub_key;
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{
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# Prompt to make sure the username looks OK
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my $cmd;
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$cmd = "useradd -m " . $username;
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printf("Y/N is this command OK?: %s\n", $cmd);
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if(!(<STDIN> =~ /^y/i)){
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die "provision cancelled...";
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}
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# create the user
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system($cmd);
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system("echo '".$pub_key."' > /home/$username/.ssh/authorized_keys");
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system("chmod 711 /home/$username");
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}
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}
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# Make sure we're running as root
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$pwuid = getpwuid( $< );
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if($pwuid ne "root"){
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die "script must be run as root";
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}
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# Make sure script is provisioning a fresh instance
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# and doesn't clobber users existing configs
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printf("This script is meant to be run on a fresh install\n");
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printf("Y/N OK to proceed?");
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if(!(<STDIN> =~ /^y/i)){
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die "provision cancelled...";
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}
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unless( ($admin_un) = `tail /etc/passwd | grep -v "nobody:"` =~ /([^:\n]+):[^:]+:[0-9]{4,}/){
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printf("to provision the instance there must be a non root user with an authorized_keys file");
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printf("creating user...\n");
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create();
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}
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# install git
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system("pkg_add git");
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# Setup install dir
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system("mkdir $INST_DIR");
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system("useradd -d $INST_DIR -r 100..900 $SVC_ACCT");
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system("chown $SVC_ACCT:$SVC_ACCT $INST_DIR");
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chdir $INST_DIR;
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# clone repo
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system("su $SVC_ACCT -c 'git clone $GIT_BRANCH$GIT_REPO'");
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chdir $REPO_DIR;
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# Copy the skel directory
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system("mkdir ./skel/public_html/cgi");
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system("cp -r ./skel/* /etc/skel/");
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# Check /etc/passwd for the username created during
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# installation
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if( ($admin_un) = `tail /etc/passwd | grep -v "nobody:"` =~ /([^:\n]+):[^:]+:[0-9]{4,}/){
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# grant doas access to admin user
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system("echo 'permit nopass $admin_un' > /etc/doas.conf");
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# setup admin user
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system("cp -r ./skel/* /home/$admin_un/");
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system("chown -R $admin_un:$admin_un /home/$admin_un");
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system("echo $admin_un >> ./user_list.txt");
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}
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# Setup the virtual environment
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system("pkg_add python3 openssl rust bash");
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printf("generating virtual enviornment...\n");
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system("su $SVC_ACCT -c 'python3 -m venv venv'");
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printf("running pip. can take up to 3 minutes due to slow compilation.\n");
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system("su $SVC_ACCT -c '. ./venv/bin/activate && python3 -m pip install --upgrade pip'");
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system("su $SVC_ACCT -c '. ./venv/bin/activate && pip3 install -r requirements.txt'");
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system("cp ./perl-script/conf/lingyin.rc /etc/rc.d/lingyind");
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system("chmod 755 /etc/rc.d/lingyind");
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system("rcctl enable lingyind");
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system("rcctl start lingyind");
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system("pkg_add p5-JSON");
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# Install apache
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system("pkg_add apache-httpd");
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printf("configuring apache\n");
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# enable the userdir module
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system("sed -i -e 's/^\\(.\\)*#\\(LoadModule userdir_module\\)/\\1\\2/' /etc/apache2/httpd2.conf");
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system("sed -i -e 's/^\\(.\\)*#\\(Include \\/etc\\/apache2\\/extra\\/httpd-userdir.conf\\)/\\1\\2/' /etc/apache2/httpd2.conf");
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# Enable the CGI directory
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system("echo '<Directory \"/home/*/public_html/cgi/\">
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Require all granted
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Options +ExecCGI
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AddHandler cgi-script .cgi
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</Directory>' >> /etc/apache2/extra/httpd-userdir.conf");
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# Enable the CGI modules
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system("sed -i -e 's/^\\(.\\)*#\\(LoadModule cgi_module\\)/\\1\\2/' /etc/apache2/httpd2.conf");
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system("sed -i -e 's/^\\(.\\)*#\\(LoadModule cgid_module\\)/\\1\\2/' /etc/apache2/httpd2.conf");
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# Disable directory listing
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system("sed -i -e 's/\\(<\\/Directory>\\)/ Options -Indexes\\
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\\1/g' /etc/apache2/extra/httpd-userdir.conf");
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# Change the port to 5001
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system("sed -i -e 's/^\\(.\\)*Listen *80/\\1Listen 5001/' /etc/apache2/httpd2.conf");
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# rev up those apache processes!
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system("rcctl enable apache2");
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system("rcctl start apache2");
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# Install and config haproxy
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system("pkg_add haproxy");
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printf("configuring haproxy\n");
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system("cp ./perl-script/conf/haproxy.cfg /etc/haproxy/haproxy.cfg");
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system("rcctl enable haproxy");
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system("rcctl start haproxy");
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# Install and configure ngircd and delegation
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system("pkg_add ngircd");
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# irc group is used for granting permissions
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# to irc admins
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system("groupadd irc");
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system("usermod -G irc _ngircd");
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# allow doas for irc admins
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system("echo 'permit nopass :irc as _ngircd' >> /etc/doas.conf");
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# Copy over our conf file to /etc
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# and set permissions
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chdir "$INST_DIR/$REPO_DIR";
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system("chmod 750 /etc/ngircd");
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system("cp ./perl-script/conf/ngircd.conf /etc/ngircd/ngircd.conf");
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system("chmod -R 660 /etc/ngircd/*");
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system("chown -R _ngircd:irc /etc/ngircd/");
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# copy over our admin script and set permissions
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system("cp ./perl-script/ngircd-ctl.pl /usr/local/sbin/ngircd-ctl");
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system("chown _ngircd:irc /usr/local/sbin/ngircd-ctl");
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system("chmod 770 /usr/local/sbin/ngircd-ctl");
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# Disable root login
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system("sed -i -e 's/^[^#]*PermitRootLogin.*\$/PermitRootLogin no/' /etc/ssh/sshd_config");
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system("sed -i -e 's/^PasswordAuthentication.*$//' /etc/ssh/sshd_config");
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system("echo 'PasswordAuthentication no' >> /etc/ssh/sshd_config");
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system("rcctl restart sshd");
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printf("\n\nInstall complete\n");
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printf("==================================================\n");
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printf("Protip: use doas instead of sudo\n");
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printf("root login and password login is now disabled, so dont forget\nto set a password\n");
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printf("and test your pub key\n");
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