discourse-setup

   1 #!/usr/bin/env bash
   2 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
   3 cd $DIR
   4
   5 ##
   6 ## Make sure only root can run our script
   7 ##
   8 check_root() {
   9   if [[ $EUID -ne 0 ]]; then
  10     echo "This script must be run as root. Please sudo or log in as root first." 1>&2
  11     exit 1
  12   fi
  13 }
  14
  15 ##
  16 ## Check whether a connection to HOSTNAME ($1) on PORT ($2) is possible
  17 ##
  18 connect_to_port () {
  19   HOST="$1"
  20   PORT="$2"
  21   VERIFY=$(date +%s | sha256sum | base64 | head -c 20)
  22   if ! [ -x "$(command -v nc)" ]; then
  23     echo "In order to check the connection to $HOST:$PORT we need to open a socket using netcat."
  24     echo However netcat is not installed on your system. You can continue without this check
  25     echo or abort the setup, install netcat and try again.
  26     while true; do
  27       read -p "Would you like to continue without this check? [yn] " yn
  28       case $yn in
  29       [Yy]*) return 2 ;;
  30       [Nn]*) exit ;;
  31       *) echo "Please answer y or n." ;;
  32       esac
  33     done
  34   else
  35     echo -e "HTTP/1.1 200 OK\n\n $VERIFY" | nc -w 4 -l -p $PORT >/dev/null 2>&1 &
  36     if curl --proto =http -s $HOST:$PORT --connect-timeout 3 | grep $VERIFY >/dev/null 2>&1; then
  37       return 0
  38     else
  39       curl --proto =http -s localhost:$PORT >/dev/null 2>&1
  40       return 1
  41     fi
  42   fi
  43 }
  44
  45 check_IP_match() {
  46   HOST="$1"
  47   echo
  48   echo Checking your domain name . . .
  49   connect_to_port $HOST 443; ec=$?
  50   case $ec in
  51     0)
  52       echo "Connection to $HOST succeeded."
  53       ;;
  54     1)
  55       echo "WARNING: Port 443 of computer does not appear to be accessible using hostname:  $HOST."
  56       if connect_to_port $HOST 80; then
  57         echo
  58         echo SUCCESS: A connection to port 80 succeeds!
  59         echo This suggests that your DNS settings are correct,
  60         echo but something is keeping traffic to port 443 from getting to your server.
  61         echo Check your networking configuration to see that connections to port 443 are allowed.
  62       else
  63         echo "WARNING: Connection to http://$HOST (port 80) also fails."
  64         echo
  65         echo "This suggests that $HOST resolves to some IP address that does not reach this "
  66         echo machine where you are installing discourse.
  67       fi
  68       echo
  69       echo "The first thing to do is confirm that $HOST resolves to the IP address of this server."
  70       echo You usually do this at the same place you purchased the domain.
  71       echo
  72       echo If you are sure that the IP address resolves correctly, it could be a firewall issue.
  73       echo A web search for  \"open ports YOUR CLOUD SERVICE\" might help.
  74       echo
  75       echo This tool is designed only for the most standard installations. If you cannot resolve
  76       echo the issue above, you will need to edit containers/app.yml yourself and then type
  77       echo
  78       echo                   ./launcher rebuild app
  79       echo
  80       exit 1
  81       ;;
  82     2)
  83       echo "Continuing without port check."
  84       ;;
  85   esac
  86 }
  87
  88 ##
  89 ## Do we have docker?
  90 ##
  91 check_and_install_docker () {
  92   docker_path=`which docker.io || which docker`
  93   if [ -z $docker_path ]; then
  94     read  -p "Docker not installed. Enter to install from https://get.docker.com/ or Ctrl+C to exit"
  95     curl https://get.docker.com/ | sh
  96   fi
  97   docker_path=`which docker.io || which docker`
  98   if [ -z $docker_path ]; then
  99     echo Docker install failed. Quitting.
 100     exit
 101   fi
 102 }
 103
 104 ##
 105 ## What are we running on
 106 ##
 107 check_OS() {
 108   echo `uname -s`
 109 }
 110
 111 ##
 112 ## OS X available memory
 113 ##
 114 check_osx_memory() {
 115   echo `free -m | awk '/Mem:/ {print $2}'`
 116 }
 117
 118 ##
 119 ## Linux available memory
 120 ##
 121 check_linux_memory() {
 122   ## some VMs report just under 1GB of RAM, so
 123   ## make an exception and allow those with more
 124   ## than 989MB
 125   mem=`free -m --si | awk ' /Mem:/ {print $2}'`
 126   if [ "$mem" -ge 990 -a "$mem" -lt 1000 ]; then
 127     echo 1
 128   else
 129     echo `free -g --si | awk ' /Mem:/  {print $2} '`
 130   fi
 131 }
 132
 133 ##
 134 ## Do we have enough memory and disk space for Discourse?
 135 ##
 136 check_disk_and_memory() {
 137
 138   os_type=$(check_OS)
 139   avail_mem=0
 140   if [ "$os_type" == "Darwin" ]; then
 141     avail_mem=$(check_osx_memory)
 142   else
 143     avail_mem=$(check_linux_memory)
 144   fi
 145
 146   if [ "$avail_mem" -lt 1 ]; then
 147     echo "WARNING: Discourse requires 1GB RAM to run. This system does not appear"
 148     echo "to have sufficient memory."
 149     echo
 150     echo "Your site may not work properly, or future upgrades of Discourse may not"
 151     echo "complete successfully."
 152     exit 1
 153   fi
 154
 155   if [ "$avail_mem" -le 2 ]; then
 156     total_swap=`free -g --si | awk ' /Swap:/  {print $2} '`
 157
 158     if [ "$total_swap" -lt 2 ]; then
 159       echo "WARNING: Discourse requires at least 2GB of swap when running with 2GB of RAM"
 160       echo "or less. This system does not appear to have sufficient swap space."
 161       echo
 162       echo "Without sufficient swap space, your site may not work properly, and future"
 163       echo "upgrades of Discourse may not complete successfully."
 164       echo
 165       echo "Ctrl+C to exit or wait 5 seconds to have a 2GB swapfile created."
 166       sleep 5
 167
 168       ##
 169       ## derived from https://meta.discourse.org/t/13880
 170       ##
 171       install -o root -g root -m 0600 /dev/null /swapfile
 172       fallocate -l 2G /swapfile
 173       mkswap /swapfile
 174       swapon /swapfile
 175       echo "/swapfile       swap    swap    auto      0       0" | tee -a /etc/fstab
 176       sysctl -w vm.swappiness=10
 177       echo 'vm.swappiness = 10' > /etc/sysctl.d/30-discourse-swap.conf
 178
 179       total_swap=`free -g --si | awk ' /Swap:/ {print $2} '`
 180       if [ "$total_swap" -lt 2 ]; then
 181         echo "Failed to create swap: are you root? Are you running on real hardware, or a fully virtualized server?"
 182         exit 1
 183       fi
 184
 185     fi
 186   fi
 187
 188
 189   free_disk="$(df /var | tail -n 1 | awk '{print $4}')"
 190   if [ "$free_disk" -lt 5000 ]; then
 191     echo "WARNING: Discourse requires at least 5GB free disk space. This system"
 192     echo "does not appear to have sufficient disk space."
 193     echo
 194     echo "Insufficient disk space may result in problems running your site, and"
 195     echo "may not even allow Discourse installation to complete successfully."
 196     echo
 197     echo "Please free up some space, or expand your disk, before continuing."
 198     echo
 199     echo "Run \`apt-get autoremove && apt-get autoclean\` to clean up unused"
 200     echo "packages and \`./launcher cleanup\` to remove stale Docker containers."
 201     exit 1
 202   fi
 203
 204 }
 205
 206
 207 ##
 208 ## If we have lots of RAM or lots of CPUs, bump up the defaults to scale better
 209 ##
 210 scale_ram_and_cpu() {
 211
 212   local changelog=/tmp/changelog.$PPID
 213   # grab info about total system ram and physical (NOT LOGICAL!) CPU cores
 214   avail_gb=0
 215   avail_cores=0
 216   os_type=$(check_OS)
 217   if [ "$os_type" == "Darwin" ]; then
 218     avail_gb=$(check_osx_memory)
 219     avail_cores=`sysctl hw.ncpu | awk '/hw.ncpu:/ {print $2}'`
 220   else
 221     avail_gb=$(check_linux_memory)
 222     avail_cores=$((`awk '/cpu cores/ {print $4;exit}' /proc/cpuinfo`*`sort /proc/cpuinfo | uniq | grep -c "physical id"`))
 223   fi
 224   echo "Found ${avail_gb}GB of memory and $avail_cores physical CPU cores"
 225
 226   # db_shared_buffers: 128MB for 1GB, 256MB for 2GB, or 256MB * GB, max 4096MB
 227   if [ "$avail_gb" -eq "1" ]
 228   then
 229     db_shared_buffers=128
 230   else
 231     if [ "$avail_gb" -eq "2" ]
 232     then
 233       db_shared_buffers=256
 234     else
 235       db_shared_buffers=$(( 256 * $avail_gb ))
 236     fi
 237   fi
 238   db_shared_buffers=$(( db_shared_buffers < 4096 ? db_shared_buffers : 4096 ))
 239
 240   sed -i -e "s/^  #\?db_shared_buffers:.*/  db_shared_buffers: \"${db_shared_buffers}MB\"/w $changelog" $data_file
 241   if [ -s $changelog ]
 242   then
 243     echo "setting db_shared_buffers = ${db_shared_buffers}MB"
 244     rm $changelog
 245   fi
 246
 247   # UNICORN_WORKERS: 2 * GB for 2GB or less, or 2 * CPU, max 8
 248   if [ "$avail_gb" -le "2" ]
 249   then
 250     unicorn_workers=$(( 2 * $avail_gb ))
 251   else
 252     unicorn_workers=$(( 2 * $avail_cores ))
 253   fi
 254   unicorn_workers=$(( unicorn_workers < 8 ? unicorn_workers : 8 ))
 255
 256   sed -i -e "s/^  #\?UNICORN_WORKERS:.*/  UNICORN_WORKERS: ${unicorn_workers}/w $changelog" $web_file
 257   if [ -s $changelog ]
 258   then
 259       echo "setting UNICORN_WORKERS = ${unicorn_workers}"
 260       rm $changelog
 261   fi
 262
 263   echo $data_file memory parameters updated.
 264 }
 265
 266
 267 ##
 268 ## standard http / https ports must not be occupied
 269 ##
 270 check_ports() {
 271     check_port "80"
 272     check_port "443"
 273     echo "Ports 80 and 443 are free for use"
 274 }
 275
 276
 277 ##
 278 ## check a port to see if it is already in use
 279 ##
 280 check_port() {
 281
 282   local valid=$(netstat -tln | awk '{print $4}' | grep ":${1}\$")
 283
 284   if [ -n "$valid" ]; then
 285     echo "Port ${1} appears to already be in use."
 286     echo
 287     echo "This will show you what command is using port ${1}"
 288     lsof -i tcp:${1} -s tcp:listen
 289     echo
 290     echo "If you are trying to run Discourse simultaneously with another web"
 291     echo "server like Apache or nginx, you will need to bind to a different port"
 292     echo
 293     echo "See https://meta.discourse.org/t/17247"
 294     echo
 295     echo "If you are reconfiguring an already-configured Discourse, use "
 296     echo
 297     echo "./launcher stop app"
 298     echo
 299     echo "to stop Discourse before you reconfigure it and try again."
 300     exit 1
 301   fi
 302 }
 303
 304 ##
 305 ## read a variable from the config file
 306 ##
 307 read_config() {
 308   config_line=`egrep "^  #?$1:" $web_file`
 309   read_config_result=`echo $config_line | awk  -F":" '{print $2}'`
 310   read_config_result=`echo $read_config_result | sed "s/^\([\"']\)\(.*\)\1\$/\2/g"`
 311 }
 312
 313 read_default() {
 314   config_line=`egrep "^  #?$1:" samples/standalone.yml`
 315   read_default_result=`echo $config_line | awk  -F":" '{print $2}'`
 316   read_default_result=`echo $read_config_result | sed "s/^\([\"']\)\(.*\)\1\$/\2/g"`
 317 }
 318
 319 ##
 320 ## prompt user for typical Discourse config file values
 321 ##
 322 ask_user_for_config() {
 323
 324   # NOTE: Defaults now come from standalone.yml
 325
 326   local changelog=/tmp/changelog.$PPID
 327   read_config "DISCOURSE_SMTP_ADDRESS"
 328   local smtp_address=$read_config_result
 329   # NOTE: if there are spaces between emails, this breaks, but a human should be paying attention
 330   read_config "DISCOURSE_DEVELOPER_EMAILS"
 331   local developer_emails=$read_config_result
 332   read_config "DISCOURSE_SMTP_PASSWORD"
 333   local smtp_password=$read_config_result
 334   read_config "DISCOURSE_SMTP_PORT"
 335   local smtp_port=$read_config_result
 336   read_config "DISCOURSE_SMTP_USER_NAME"
 337   local smtp_user_name=$read_config_result
 338   if [ "$smtp_password" = "pa$$word" ]
 339   then
 340       smtp_password = ""
 341   fi
 342   read_config "LETSENCRYPT_ACCOUNT_EMAIL"
 343   local letsencrypt_account_email=$read_config_result
 344   if [ -z $letsencrypt_account_email ]
 345   then
 346       letsencrypt_account_email="me@example.com"
 347   fi
 348   if [ "$letsencrypt_account_email" = "me@example.com" ]
 349   then
 350       local letsencrypt_status="ENTER to skip"
 351   else
 352     local letsencrypt_status="Enter 'OFF' to disable."
 353   fi
 354
 355   read_config "DISCOURSE_HOSTNAME"
 356   hostname=$read_config_result
 357
 358   local new_value=""
 359   local config_ok="n"
 360   local update_ok="y"
 361
 362   echo ""
 363
 364   while [[ "$config_ok" == "n" ]]
 365   do
 366     if [ ! -z "$hostname" ]
 367     then
 368       read -p "Hostname for your Discourse? [$hostname]: " new_value
 369       if [ ! -z "$new_value" ]
 370       then
 371           hostname="$new_value"
 372       fi
 373       if [[ $hostname =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]
 374       then
 375         echo
 376         echo "Discourse requires a DNS hostname. IP addresses are unsupported and will not work."
 377         echo
 378         hostname="discourse.example.com"
 379       fi
 380     fi
 381
 382     check_IP_match $hostname
 383
 384     if [ ! -z "$developer_emails" ]
 385     then
 386       read -p "Email address for admin account(s)? [$developer_emails]: " new_value
 387       if [ ! -z "$new_value" ]
 388       then
 389           developer_emails="$new_value"
 390       fi
 391     fi
 392
 393     if [ ! -z "$smtp_address" ]
 394     then
 395       read -p "SMTP server address? [$smtp_address]: " new_value
 396       if [ ! -z "$new_value" ]
 397       then
 398         smtp_address="$new_value"
 399       fi
 400     fi
 401
 402     if [ ! -z "$smtp_port" ]
 403     then
 404       read -p "SMTP port? [$smtp_port]: " new_value
 405       if [ ! -z "$new_value" ]
 406       then
 407         smtp_port="$new_value"
 408       fi
 409     fi
 410
 411     ##
 412     ## automatically set correct user name based on common mail providers unless it's been set
 413     ##
 414     if [ "$smtp_user_name" == "user@example.com" ]
 415     then
 416       if [ "$smtp_address" == "smtp.sparkpostmail.com" ]
 417       then
 418         smtp_user_name="SMTP_Injection"
 419       fi
 420       if [ "$smtp_address" == "smtp.sendgrid.net" ]
 421       then
 422             smtp_user_name="apikey"
 423       fi
 424       if [ "$smtp_address" == "smtp.mailgun.org" ]
 425       then
 426             smtp_user_name="postmaster@$hostname"
 427       fi
 428     fi
 429
 430     if [ ! -z "$smtp_user_name" ]
 431     then
 432       read -p "SMTP user name? [$smtp_user_name]: " new_value
 433       if [ ! -z "$new_value" ]
 434       then
 435           smtp_user_name="$new_value"
 436       fi
 437     fi
 438
 439     read -p "SMTP password? [$smtp_password]: " new_value
 440     if [ ! -z "$new_value" ]
 441     then
 442         smtp_password="$new_value"
 443     fi
 444
 445     if [ ! -z $letsencrypt_account_email ]
 446     then
 447       read -p "Optional email address for Let's Encrypt warnings? ($letsencrypt_status) [$letsencrypt_account_email]: " new_value
 448       if [ ! -z "$new_value" ]
 449       then
 450           letsencrypt_account_email="$new_value"
 451           if [ "${new_value,,}" = "off" ]
 452           then
 453             letsencrypt_status="ENTER to skip"
 454           else
 455             letsencrypt_status="Enter 'OFF' to disable."
 456           fi
 457       fi
 458     fi
 459
 460     echo -e "\nDoes this look right?\n"
 461     echo "Hostname      : $hostname"
 462     echo "Email         : $developer_emails"
 463     echo "SMTP address  : $smtp_address"
 464     echo "SMTP port     : $smtp_port"
 465     echo "SMTP username : $smtp_user_name"
 466     echo "SMTP password : $smtp_password"
 467
 468     if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
 469     then
 470       echo "Let's Encrypt : $letsencrypt_account_email"
 471     fi
 472
 473
 474     echo ""
 475     read -p "ENTER to continue, 'n' to try again, Ctrl+C to exit: " config_ok
 476   done
 477
 478   sed -i -e "s/^  DISCOURSE_HOSTNAME:.*/  DISCOURSE_HOSTNAME: $hostname/w $changelog" $web_file
 479   if [ -s $changelog ]
 480   then
 481     rm $changelog
 482   else
 483     echo "DISCOURSE_HOSTNAME change failed."
 484     update_ok="n"
 485   fi
 486
 487   sed -i -e "s/^  DISCOURSE_DEVELOPER_EMAILS:.*/  DISCOURSE_DEVELOPER_EMAILS: \'$developer_emails\'/w $changelog" $web_file
 488   if [ -s $changelog ]
 489   then
 490     rm $changelog
 491   else
 492     echo "DISCOURSE_DEVELOPER_EMAILS change failed."
 493     update_ok="n"
 494   fi
 495
 496   sed -i -e "s/^  DISCOURSE_SMTP_ADDRESS:.*/  DISCOURSE_SMTP_ADDRESS: $smtp_address/w $changelog" $web_file
 497   if [ -s $changelog ]
 498   then
 499     rm $changelog
 500   else
 501     echo "DISCOURSE_SMTP_ADDRESS change failed."
 502     update_ok="n"
 503   fi
 504
 505   sed -i -e "s/^  #\?DISCOURSE_SMTP_PORT:.*/  DISCOURSE_SMTP_PORT: $smtp_port/w $changelog" $web_file
 506   if [ -s $changelog ]
 507   then
 508     rm $changelog
 509   else
 510     echo "DISCOURSE_SMTP_PORT change failed."
 511     update_ok="n"
 512   fi
 513
 514   sed -i -e "s/^  #\?DISCOURSE_SMTP_USER_NAME:.*/  DISCOURSE_SMTP_USER_NAME: $smtp_user_name/w $changelog" $web_file
 515   if [ -s $changelog ]
 516   then
 517     rm $changelog
 518   else
 519     echo "DISCOURSE_SMTP_USER_NAME change failed."
 520     update_ok="n"
 521   fi
 522
 523   if [[ "$smtp_password" == *"\""* ]]
 524   then
 525     SLASH="BROKEN"
 526     echo "========================================"
 527     echo "WARNING!!!"
 528     echo "Your password contains a quote (\")"
 529     echo "Your SMTP Password will not be set. You will need to edit app.yml to enter it."
 530     echo "========================================"
 531     update_ok="n"
 532   else
 533     SLASH="|"
 534     if [[ "$smtp_password" == *"$SLASH"* ]]
 535     then SLASH="+"
 536       if [[ "$smtp_password" == *"$SLASH"* ]]
 537       then
 538         SLASH="Q"
 539         if [[ "$smtp_password" == *"$SLASH"* ]]
 540         then
 541           SLASH="BROKEN"
 542           echo "========================================"
 543           echo "WARNING!!!"
 544           echo "Your password contains all available delimiters (+, |, and Q). "
 545           echo "Your SMTP Password will not be set. You will need to edit app.yml to enter it."
 546           echo "========================================"
 547           update_ok="n"
 548          fi
 549        fi
 550     fi
 551   fi
 552   if [[ "$SLASH" != "BROKEN" ]]
 553   then
 554     sed -i -e "s${SLASH}^  #\?DISCOURSE_SMTP_PASSWORD:.*${SLASH}  DISCOURSE_SMTP_PASSWORD: \"${smtp_password}\"${SLASH}w $changelog" $web_file
 555
 556     if [ -s $changelog ]
 557     then
 558       rm $changelog
 559     else
 560       echo "DISCOURSE_SMTP_PASSWORD change failed."
 561       update_ok="n"
 562     fi
 563   fi
 564
 565   echo "Enabling Let's Encrypt"
 566     sed -i -e "s/^  #\?LETSENCRYPT_ACCOUNT_EMAIL:.*/  LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email/w $changelog" $web_file
 567     if [ -s $changelog ]
 568     then
 569       rm $changelog
 570     else
 571       echo "LETSENCRYPT_ACCOUNT_EMAIL change failed."
 572       update_ok="n"
 573     fi
 574     local src='^  #\?- "templates\/web.ssl.template.yml"'
 575     local dst='  \- "templates\/web.ssl.template.yml"'
 576     sed -i -e "s/$src/$dst/w $changelog" $web_file
 577     if [ -s $changelog ]
 578     then
 579   echo "web.ssl.template.yml enabled"
 580     else
 581       update_ok="n"
 582       echo "web.ssl.template.yml NOT ENABLED--was it on already?"
 583     fi
 584     local src='^  #\?- "templates\/web.letsencrypt.ssl.template.yml"'
 585     local dst='  - "templates\/web.letsencrypt.ssl.template.yml"'
 586
 587     sed -i -e "s/$src/$dst/w $changelog" $web_file
 588     if [ -s $changelog ]
 589     then
 590       echo "letsencrypt.ssl.template.yml enabled"
 591     else
 592       update_ok="n"
 593       echo "letsencrypt.ssl.template.yml NOT ENABLED -- was it on already?"
 594     fi
 595
 596   if [ "$update_ok" == "y" ]
 597   then
 598     echo -e "\nConfiguration file at $config_file updated successfully!\n"
 599   else
 600     echo -e "\nUnfortunately, there was an error changing $config_file\n"
 601     echo -d "This may happen if you have made unexpected changes."
 602     exit 1
 603   fi
 604 }
 605
 606 ##
 607 ## is our config file valid? Does it have the required fields set?
 608 ##
 609 validate_config() {
 610
 611   valid_config="y"
 612
 613   for x in DISCOURSE_SMTP_ADDRESS DISCOURSE_SMTP_USER_NAME DISCOURSE_SMTP_PASSWORD \
 614            DISCOURSE_DEVELOPER_EMAILS DISCOURSE_HOSTNAME
 615   do
 616     read_config $x
 617     local result=$read_config_result
 618     read_default $x
 619     local default=$read_default_result
 620
 621     if [ ! -z "$result" ]
 622     then
 623       if [[ "$config_line" = *"$default"* ]]
 624       then
 625         echo "$x left at incorrect default of $default"
 626         valid_config="n"
 627       fi
 628       config_val=`echo $config_line | awk '{print $2}'`
 629       if [ -z $config_val ]
 630       then
 631         echo "$x was not configured"
 632         valid_config="n"
 633       fi
 634     else
 635       echo "$x not present"
 636       valid_config="n"
 637     fi
 638   done
 639
 640   if [ "$valid_config" != "y" ]; then
 641     echo -e "\nSorry, these $web_file settings aren't valid -- can't continue!"
 642     echo "If you have unusual requirements, edit $web_file and then: "
 643     echo "./launcher bootstrap $app_name"
 644     exit 1
 645   fi
 646 }
 647
 648
 649 ##
 650 ## template file names
 651 ##
 652
 653 if [ "$1" == "2container" ]
 654 then
 655     app_name=web_only
 656     data_name=data
 657     web_template=samples/web_only.yml
 658     data_template=samples/data.yml
 659     web_file=containers/$app_name.yml
 660     data_file=containers/$data_name.yml
 661 else
 662   app_name=app
 663   data_name=app
 664   web_template=samples/standalone.yml
 665   data_template=""
 666   web_file=containers/$app_name.yml
 667   data_file=containers/$app_name.yml
 668 fi
 669     changelog=/tmp/changelog
 670
 671 ##
 672 ## Check requirements before creating a copy of a config file we won't edit
 673 ##
 674 check_root
 675 check_and_install_docker
 676 check_disk_and_memory
 677
 678 if [ -a "$web_file" ]
 679 then
 680   echo "The configuration file $web_file already exists!"
 681   echo
 682   echo ". . . reconfiguring . . ."
 683   echo
 684   echo
 685   DATE=`date +"%Y-%m-%d-%H%M%S"`
 686   BACKUP=$app_name.yml.$DATE.bak
 687   echo Saving old file as $BACKUP
 688   cp $web_file containers/$BACKUP
 689   echo "Stopping existing container in 5 seconds or Control-C to cancel."
 690   sleep 5
 691   ./launcher stop app
 692   echo
 693 else
 694   check_ports
 695   cp -v $web_template $web_file
 696   if [ "$data_name" == "data" ]
 697   then
 698       echo "--------------------------------------------------"
 699       echo "This two container setup is currently unsupported. Use at your own risk!"
 700       echo "--------------------------------------------------"
 701       DISCOURSE_DB_PASSWORD=`date +%s | sha256sum | base64 | head -c 20`
 702
 703      sed -i -e "s/DISCOURSE_DB_PASSWORD: SOME_SECRET/DISCOURSE_DB_PASSWORD: $DISCOURSE_DB_PASSWORD/w $changelog" $web_file
 704      if  [ -s $changelog ]
 705      then
 706          rm $changelog
 707      else
 708        echo "Problem changing DISCOURSE_DB_PASSWORD" in $web_file
 709      fi
 710
 711      cp -v $data_template $data_file
 712      quote=\'
 713      sed -i -e "s/password ${quote}SOME_SECRET${quote}/password '$DISCOURSE_DB_PASSWORD'/w $changelog" $data_file
 714      if  [ -s $changelog ]
 715      then
 716          rm $changelog
 717      else
 718        echo "Problem changing DISCOURSE_DB_PASSWORD" in $data_file
 719      fi
 720   fi
 721 fi
 722
 723 scale_ram_and_cpu
 724 ask_user_for_config
 725 validate_config
 726
 727 ##
 728 ## if we reach this point without exiting, OK to proceed
 729 ## rebuild won't fail if there's nothing to rebuild and does the restart
 730 ##
 731 echo "Updates successful. Rebuilding in 5 seconds."
 732 sleep 5 # Just a chance to ^C in case they were too fast on the draw
 733 if [ "$data_name" == "$app_name" ]
 734 then
 735     echo Building $app_name
 736     ./launcher rebuild $app_name
 737 else
 738     echo Building $data_name now . . .
 739     ./launcher rebuild $data_name
 740     echo Building $app_name now . . .
 741     ./launcher rebuild $app_name
 742 fi