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   echo -e "HTTP/1.1 200 OK\n\n $VERIFY" | nc -w 4 -l -p $PORT >/dev/null 2>&1 &
  23   if curl --proto =http -s $HOST:$PORT --connect-timeout 3 | grep $VERIFY >/dev/null 2>&1
  24   then
  25       return 0
  26   else
  27     curl --proto =http -s localhost:$PORT >/dev/null 2>&1
  28     return 1
  29   fi
  30 }
  31
  32 check_IP_match () {
  33   HOST="$1"
  34   echo
  35   echo Checking your domain name . . .
  36   if connect_to_port $HOST 443
  37   then
  38       echo
  39       echo "Connection to $HOST succeeded."
  40   else
  41     echo WARNING:: This server does not appear to be accessible at $HOST:443.
  42     echo
  43     if connect_to_port $HOST 80
  44     then
  45         echo A connection to port 80 succeeds, however.
  46         echo This suggests that your DNS settings are correct,
  47         echo but something is keeping traffic to port 443 from getting to your server.
  48         echo Check your networking configuration to see that connections to port 443 are allowed.
  49     else
  50       echo "A connection to http://$HOST (port 80) also fails."
  51       echo
  52       echo This suggests that $HOST resolves to the wrong IP address
  53       echo or that traffic is not being routed to your server.
  54     fi
  55     echo
  56     echo Google: \"open ports YOUR CLOUD SERVICE\" for information for resolving this problem.
  57     echo
  58     echo You should probably answer \"n\" at the next prompt and disable Let\'s Encrypt.
  59     echo
  60     echo This test might not work for all situations,
  61     echo so if you can access Discourse at http://$HOST, you might try anyway.
  62     sleep 3
  63   fi
  64 }
  65
  66 ##
  67 ## Do we have docker?
  68 ##
  69 check_and_install_docker () {
  70   docker_path=`which docker.io || which docker`
  71   if [ -z $docker_path ]; then
  72     read  -p "Docker not installed. Enter to install from https://get.docker.com/ or Ctrl+C to exit"
  73     curl https://get.docker.com/ | sh
  74   fi
  75   docker_path=`which docker.io || which docker`
  76   if [ -z $docker_path ]; then
  77     echo Docker install failed. Quitting.
  78     exit
  79   fi
  80 }
  81
  82 ##
  83 ## What are we running on
  84 ##
  85 check_OS() {
  86   echo `uname -s`
  87 }
  88
  89 ##
  90 ## OS X available memory
  91 ##
  92 check_osx_memory() {
  93   echo `free -m | awk '/Mem:/ {print $2}'`
  94 }
  95
  96 ##
  97 ## Linux available memory
  98 ##
  99 check_linux_memory() {
 100   echo `free -g --si | awk ' /Mem:/  {print $2} '`
 101 }
 102
 103 ##
 104 ## Do we have enough memory and disk space for Discourse?
 105 ##
 106 check_disk_and_memory() {
 107
 108   os_type=$(check_OS)
 109   avail_mem=0
 110   if [ "$os_type" == "Darwin" ]; then
 111     avail_mem=$(check_osx_memory)
 112   else
 113     avail_mem=$(check_linux_memory)
 114   fi
 115
 116   if [ "$avail_mem" -lt 1 ]; then
 117     echo "WARNING: Discourse requires 1GB RAM to run. This system does not appear"
 118     echo "to have sufficient memory."
 119     echo
 120     echo "Your site may not work properly, or future upgrades of Discourse may not"
 121     echo "complete successfully."
 122     exit 1
 123   fi
 124
 125   if [ "$avail_mem" -le 2 ]; then
 126     total_swap=`free -g --si | awk ' /Swap:/  {print $2} '`
 127
 128     if [ "$total_swap" -lt 2 ]; then
 129       echo "WARNING: Discourse requires at least 2GB of swap when running with 2GB of RAM"
 130       echo "or less. This system does not appear to have sufficient swap space."
 131       echo
 132       echo "Without sufficient swap space, your site may not work properly, and future"
 133       echo "upgrades of Discourse may not complete successfully."
 134       echo
 135       echo "Ctrl+C to exit or wait 5 seconds to have a 2GB swapfile created."
 136       sleep 5
 137
 138       ##
 139       ## derived from https://meta.discourse.org/t/13880
 140       ##
 141       install -o root -g root -m 0600 /dev/null /swapfile
 142       dd if=/dev/zero of=/swapfile bs=1k count=2048k
 143       mkswap /swapfile
 144       swapon /swapfile
 145       echo "/swapfile       swap    swap    auto      0       0" | tee -a /etc/fstab
 146       sysctl -w vm.swappiness=10
 147       echo vm.swappiness = 10 | tee -a /etc/sysctl.conf
 148
 149       total_swap=`free -g --si | awk ' /Swap:/ {print $2} '`
 150       if [ "$total_swap" -lt 2 ]; then
 151         echo "Failed to create swap: are you root? Are you running on real hardware, or a fully virtualized server?"
 152         exit 1
 153       fi
 154
 155     fi
 156   fi
 157
 158
 159   free_disk="$(df /var | tail -n 1 | awk '{print $4}')"
 160   if [ "$free_disk" -lt 5000 ]; then
 161     echo "WARNING: Discourse requires at least 5GB free disk space. This system"
 162     echo "does not appear to have sufficient disk space."
 163     echo
 164     echo "Insufficient disk space may result in problems running your site, and"
 165     echo "may not even allow Discourse installation to complete successfully."
 166     echo
 167     echo "Please free up some space, or expand your disk, before continuing."
 168     echo
 169     echo "Run \`apt-get autoremove && apt-get autoclean\` to clean up unused"
 170     echo "packages and \`./launcher cleanup\` to remove stale Docker containers."
 171     exit 1
 172   fi
 173
 174 }
 175
 176
 177 ##
 178 ## If we have lots of RAM or lots of CPUs, bump up the defaults to scale better
 179 ##
 180 scale_ram_and_cpu() {
 181
 182   local changelog=/tmp/changelog.$PPID
 183   # grab info about total system ram and physical (NOT LOGICAL!) CPU cores
 184   avail_gb=0
 185   avail_cores=0
 186   os_type=$(check_OS)
 187   if [ "$os_type" == "Darwin" ]; then
 188     avail_gb=$(check_osx_memory)
 189     avail_cores=`sysctl hw.ncpu | awk '/hw.ncpu:/ {print $2}'`
 190   else
 191     avail_gb=$(check_linux_memory)
 192     avail_cores=$((`awk '/cpu cores/ {print $4;exit}' /proc/cpuinfo`*`sort /proc/cpuinfo | uniq | grep -c "physical id"`))
 193   fi
 194   echo "Found ${avail_gb}GB of memory and $avail_cores physical CPU cores"
 195
 196   # db_shared_buffers: 128MB for 1GB, 256MB for 2GB, or 256MB * GB, max 4096MB
 197   if [ "$avail_gb" -eq "1" ]
 198   then
 199     db_shared_buffers=128
 200   else
 201     if [ "$avail_gb" -eq "2" ]
 202     then
 203       db_shared_buffers=256
 204     else
 205       db_shared_buffers=$(( 256 * $avail_gb ))
 206     fi
 207   fi
 208   db_shared_buffers=$(( db_shared_buffers < 4096 ? db_shared_buffers : 4096 ))
 209
 210   sed -i -e "s/^  #\?db_shared_buffers:.*/  db_shared_buffers: \"${db_shared_buffers}MB\"/w $changelog" $data_file
 211   if [ -s $changelog ]
 212   then
 213     echo "setting db_shared_buffers = ${db_shared_buffers}MB"
 214     rm $changelog
 215   fi
 216
 217   # UNICORN_WORKERS: 2 * GB for 2GB or less, or 2 * CPU, max 8
 218   if [ "$avail_gb" -le "2" ]
 219   then
 220     unicorn_workers=$(( 2 * $avail_gb ))
 221   else
 222     unicorn_workers=$(( 2 * $avail_cores ))
 223   fi
 224   unicorn_workers=$(( unicorn_workers < 8 ? unicorn_workers : 8 ))
 225
 226   sed -i -e "s/^  #\?UNICORN_WORKERS:.*/  UNICORN_WORKERS: ${unicorn_workers}/w $changelog" $web_file
 227   if [ -s $changelog ]
 228   then
 229       echo "setting UNICORN_WORKERS = ${unicorn_workers}"
 230       rm $changelog
 231   fi
 232
 233   echo $data_file memory parameters updated.
 234 }
 235
 236
 237 ##
 238 ## standard http / https ports must not be occupied
 239 ##
 240 check_ports() {
 241     check_port "80"
 242     check_port "443"
 243     echo "Ports 80 and 443 are free for use"
 244 }
 245
 246
 247 ##
 248 ## check a port to see if it is already in use
 249 ##
 250 check_port() {
 251
 252   local valid=$(netstat -tln | awk '{print $4}' | grep ":${1}\$")
 253
 254   if [ -n "$valid" ]; then
 255     echo "Port ${1} appears to already be in use."
 256     echo
 257     echo "This will show you what command is using port ${1}"
 258     lsof -i tcp:${1} -s tcp:listen
 259     echo
 260     echo "If you are trying to run Discourse simultaneously with another web"
 261     echo "server like Apache or nginx, you will need to bind to a different port"
 262     echo
 263     echo "See https://meta.discourse.org/t/17247"
 264     echo
 265     echo "If you are reconfiguring an already-configured Discourse, use "
 266     echo
 267     echo "./launcher stop app"
 268     echo
 269     echo "to stop Discourse before you reconfigure it and try again."
 270     exit 1
 271   fi
 272 }
 273
 274 ##
 275 ## read a variable from the config file
 276 ##
 277 read_config() {
 278   config_line=`egrep "^  #?$1:" $web_file`
 279   read_config_result=`echo $config_line | awk  --field-separator=":" '{print $2}'`
 280   read_config_result=`echo $read_config_result | sed "s/^\([\"']\)\(.*\)\1\$/\2/g"`
 281 }
 282
 283
 284
 285 ##
 286 ## prompt user for typical Discourse config file values
 287 ##
 288 ask_user_for_config() {
 289
 290   # NOTE: Defaults now come from standalone.yml
 291
 292   local changelog=/tmp/changelog.$PPID
 293   read_config "DISCOURSE_SMTP_ADDRESS"
 294   local smtp_address=$read_config_result
 295   # NOTE: if there are spaces between emails, this breaks, but a human should be paying attention
 296   read_config "DISCOURSE_DEVELOPER_EMAILS"
 297   local developer_emails=$read_config_result
 298   read_config "DISCOURSE_SMTP_PASSWORD"
 299   local smtp_password=$read_config_result
 300   read_config "DISCOURSE_SMTP_PORT"
 301   local smtp_port=$read_config_result
 302   read_config "DISCOURSE_SMTP_USER_NAME"
 303   local smtp_user_name=$read_config_result
 304   if [ "$smtp_password" = "pa$$word" ]
 305   then
 306       smtp_password = ""
 307   fi
 308   read_config "LETSENCRYPT_ACCOUNT_EMAIL"
 309   local letsencrypt_account_email=$read_config_result
 310   if [ -z $letsencrypt_account_email ]
 311   then
 312       letsencrypt_account_email="me@example.com"
 313   fi
 314   if [ "$letsencrypt_account_email" = "me@example.com" ]
 315   then
 316       local letsencrypt_status="ENTER to skip"
 317   else
 318     local letsencrypt_status="Enter 'OFF' to disable."
 319   fi
 320
 321   read_config "DISCOURSE_HOSTNAME"
 322   hostname=$read_config_result
 323
 324   local new_value=""
 325   local config_ok="n"
 326   local update_ok="y"
 327
 328   echo ""
 329
 330   while [[ "$config_ok" == "n" ]]
 331   do
 332     if [ ! -z $hostname ]
 333     then
 334       read -p "Hostname for your Discourse? [$hostname]: " new_value
 335       if [ ! -z "$new_value" ]
 336       then
 337           hostname="$new_value"
 338       fi
 339       if [[ $hostname =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]
 340       then
 341         echo
 342         echo "Discourse requires a DNS hostname. IP addresses are unsupported and will not work."
 343         echo
 344         hostname="discourse.example.com"
 345       fi
 346     fi
 347
 348     if [ ! -z $developer_emails ]
 349     then
 350       read -p "Email address for admin account(s)? [$developer_emails]: " new_value
 351       if [ ! -z "$new_value" ]
 352       then
 353           developer_emails="$new_value"
 354       fi
 355     fi
 356
 357     if [ ! -z $smtp_address ]
 358     then
 359       read -p "SMTP server address? [$smtp_address]: " new_value
 360       if [ ! -z "$new_value" ]
 361       then
 362         smtp_address="$new_value"
 363       fi
 364     fi
 365
 366     if [ ! -z $smtp_port ]
 367     then
 368       read -p "SMTP port? [$smtp_port]: " new_value
 369       if [ ! -z "$new_value" ]
 370       then
 371         smtp_port="$new_value"
 372       fi
 373     fi
 374
 375     ##
 376     ## automatically set correct user name based on common mail providers unless it's been set
 377     ##
 378     if [ "$smtp_user_name" == "user@example.com" ]
 379     then
 380       if [ "$smtp_address" == "smtp.sparkpostmail.com" ]
 381       then
 382         smtp_user_name="SMTP_Injection"
 383       fi
 384       if [ "$smtp_address" == "smtp.sendgrid.net" ]
 385       then
 386             smtp_user_name="apikey"
 387       fi
 388       if [ "$smtp_address" == "smtp.mailgun.org" ]
 389       then
 390             smtp_user_name="postmaster@$hostname"
 391       fi
 392     fi
 393
 394     if [ ! -z "$smtp_user_name" ]
 395     then
 396       read -p "SMTP user name? [$smtp_user_name]: " new_value
 397       if [ ! -z "$new_value" ]
 398       then
 399           smtp_user_name="$new_value"
 400       fi
 401     fi
 402
 403     read -p "SMTP password? [$smtp_password]: " new_value
 404     if [ ! -z "$new_value" ]
 405     then
 406         smtp_password="$new_value"
 407     fi
 408
 409     if [ ! -z $letsencrypt_account_email ]
 410     then
 411       read -p "Let's Encrypt account email? ($letsencrypt_status) [$letsencrypt_account_email]: " new_value
 412       if [ ! -z "$new_value" ]
 413       then
 414           letsencrypt_account_email="$new_value"
 415           if [ "${new_value,,}" = "off" ]
 416           then
 417             letsencrypt_status="ENTER to skip"
 418           else
 419             letsencrypt_status="Enter 'OFF' to disable."
 420           fi
 421       fi
 422     fi
 423
 424     if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
 425     then
 426        check_IP_match $hostname
 427     fi
 428
 429     echo -e "\nDoes this look right?\n"
 430     echo "Hostname      : $hostname"
 431     echo "Email         : $developer_emails"
 432     echo "SMTP address  : $smtp_address"
 433     echo "SMTP port     : $smtp_port"
 434     echo "SMTP username : $smtp_user_name"
 435     echo "SMTP password : $smtp_password"
 436
 437     if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
 438     then
 439       echo "Let's Encrypt : $letsencrypt_account_email"
 440     fi
 441
 442
 443     echo ""
 444     read -p "ENTER to continue, 'n' to try again, Ctrl+C to exit: " config_ok
 445   done
 446
 447   sed -i -e "s/^  DISCOURSE_HOSTNAME:.*/  DISCOURSE_HOSTNAME: $hostname/w $changelog" $web_file
 448   if [ -s $changelog ]
 449   then
 450     rm $changelog
 451   else
 452     echo "DISCOURSE_HOSTNAME change failed."
 453     update_ok="n"
 454   fi
 455
 456   sed -i -e "s/^  DISCOURSE_DEVELOPER_EMAILS:.*/  DISCOURSE_DEVELOPER_EMAILS: \'$developer_emails\'/w $changelog" $web_file
 457   if [ -s $changelog ]
 458   then
 459     rm $changelog
 460   else
 461     echo "DISCOURSE_DEVELOPER_EMAILS change failed."
 462     update_ok="n"
 463   fi
 464
 465   sed -i -e "s/^  DISCOURSE_SMTP_ADDRESS:.*/  DISCOURSE_SMTP_ADDRESS: $smtp_address/w $changelog" $web_file
 466   if [ -s $changelog ]
 467   then
 468     rm $changelog
 469   else
 470     echo "DISCOURSE_SMTP_ADDRESS change failed."
 471     update_ok="n"
 472   fi
 473
 474   sed -i -e "s/^  #\?DISCOURSE_SMTP_PORT:.*/  DISCOURSE_SMTP_PORT: $smtp_port/w $changelog" $web_file
 475   if [ -s $changelog ]
 476   then
 477     rm $changelog
 478   else
 479     echo "DISCOURSE_SMTP_PORT change failed."
 480     update_ok="n"
 481   fi
 482
 483   sed -i -e "s/^  #\?DISCOURSE_SMTP_USER_NAME:.*/  DISCOURSE_SMTP_USER_NAME: $smtp_user_name/w $changelog" $web_file
 484   if [ -s $changelog ]
 485   then
 486     rm $changelog
 487   else
 488     echo "DISCOURSE_SMTP_USER_NAME change failed."
 489     update_ok="n"
 490   fi
 491
 492   if [[ "$smtp_password" == *"\""* ]]
 493   then
 494     SLASH="BROKEN"
 495     echo "========================================"
 496     echo "WARNING!!!"
 497     echo "Your password contains a quote (\")"
 498     echo "Your SMTP Password will not be set. You will need to edit app.yml to enter it."
 499     echo "========================================"
 500     update_ok="n"
 501   else
 502     SLASH="|"
 503     if [[ "$smtp_password" == *"$SLASH"* ]]
 504     then SLASH="+"
 505       if [[ "$smtp_password" == *"$SLASH"* ]]
 506       then
 507         SLASH="Q"
 508         if [[ "$smtp_password" == *"$SLASH"* ]]
 509         then
 510           SLASH="BROKEN"
 511           echo "========================================"
 512           echo "WARNING!!!"
 513           echo "Your password contains all available delimiters (+, |, and Q). "
 514           echo "Your SMTP Password will not be set. You will need to edit app.yml to enter it."
 515           echo "========================================"
 516           update_ok="n"
 517          fi
 518        fi
 519     fi
 520   fi
 521   if [[ "$SLASH" != "BROKEN" ]]
 522   then
 523     sed -i -e "s${SLASH}^  #\?DISCOURSE_SMTP_PASSWORD:.*${SLASH}  DISCOURSE_SMTP_PASSWORD: \"${smtp_password}\"${SLASH}w $changelog" $web_file
 524
 525     if [ -s $changelog ]
 526     then
 527       rm $changelog
 528     else
 529       echo "DISCOURSE_SMTP_PASSWORD change failed."
 530       update_ok="n"
 531     fi
 532   fi
 533   if [ "$letsencrypt_status" = "ENTER to skip" ]
 534   then
 535       local src='^  #\?- "templates\/web.ssl.template.yml"'
 536       local dst='  #\- "templates\/web.ssl.template.yml"'
 537       sed -i -e "s/$src/$dst/w $changelog" $web_file
 538       if [ ! -s $changelog ]
 539       then
 540         update_ok="n"
 541         echo "web.ssl.template.yml NOT DISABLED--Are you using a non-standard template?"
 542       fi
 543       local src='^  #\?- "templates\/web.letsencrypt.ssl.template.yml"'
 544       local dst='  #- "templates\/web.letsencrypt.ssl.template.yml"'
 545
 546       sed -i -e "s/$src/$dst/w $changelog" $web_file
 547       if [ ! -s $changelog ]
 548       then
 549         update_ok="n"
 550         echo "web.ssl.template.yml NOT DISABLED--Are you using a non-standard template?"
 551       fi
 552   else # enable let's encrypt
 553     echo "Let's Encrypt will be enabled for $letsencrypt_account_email"
 554       sed -i -e "s/^  #\?LETSENCRYPT_ACCOUNT_EMAIL:.*/  LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email/w $changelog" $web_file
 555       if [ -s $changelog ]
 556       then
 557         rm $changelog
 558       else
 559         echo "LETSENCRYPT_ACCOUNT_EMAIL change failed."
 560         update_ok="n"
 561       fi
 562       local src='^  #\?- "templates\/web.ssl.template.yml"'
 563       local dst='  \- "templates\/web.ssl.template.yml"'
 564       sed -i -e "s/$src/$dst/w $changelog" $web_file
 565       if [ -s $changelog ]
 566       then
 567           echo "web.ssl.template.yml enabled"
 568       else
 569         update_ok="n"
 570         echo "web.ssl.template.yml NOT ENABLED--was it on already?"
 571       fi
 572       local src='^  #\?- "templates\/web.letsencrypt.ssl.template.yml"'
 573       local dst='  - "templates\/web.letsencrypt.ssl.template.yml"'
 574
 575       sed -i -e "s/$src/$dst/w $changelog" $web_file
 576       if [ -s $changelog ]
 577       then
 578               echo "letsencrypt.ssl.template.yml enabled"
 579       else
 580         update_ok="n"
 581         echo "letsencrypt.ssl.template.yml NOT ENABLED -- was it on already?"
 582       fi
 583   fi
 584
 585   if [ "$update_ok" == "y" ]
 586   then
 587     echo -e "\nConfiguration file at $config_file updated successfully!\n"
 588   else
 589     echo -e "\nUnfortunately, there was an error changing $config_file\n"
 590     echo -d "This may happen if you have made unexpected changes."
 591     exit 1
 592   fi
 593 }
 594
 595 ##
 596 ## is our config file valid? Does it have the required fields set?
 597 ##
 598 validate_config() {
 599
 600   valid_config="y"
 601
 602   for x in DISCOURSE_SMTP_ADDRESS DISCOURSE_SMTP_USER_NAME DISCOURSE_SMTP_PASSWORD \
 603            DISCOURSE_DEVELOPER_EMAILS DISCOURSE_HOSTNAME
 604   do
 605     config_line=`grep "^  $x:" $web_file`
 606     local result=$?
 607     local default="example.com"
 608
 609     if (( result == 0 ))
 610     then
 611       if [[ "$config_line" = *"$default"* ]]
 612       then
 613         echo "$x left at incorrect default of example.com"
 614         valid_config="n"
 615       fi
 616       config_val=`echo $config_line | awk '{print $2}'`
 617       if [ -z $config_val ]
 618       then
 619         echo "$x was left blank"
 620         valid_config="n"
 621       fi
 622     else
 623       echo "$x not present"
 624       valid_config="n"
 625     fi
 626   done
 627
 628   if [ "$valid_config" != "y" ]; then
 629     echo -e "\nSorry, these $web_file settings aren't valid -- can't continue!"
 630     echo "If you have unusual requirements, edit $web_file and then: "
 631     echo "./launcher bootstrap $app_name"
 632     exit 1
 633   fi
 634 }
 635
 636
 637 ##
 638 ## template file names
 639 ##
 640
 641 if [ "$1" == "2container" ]
 642 then
 643     app_name=web_only
 644     data_name=data
 645     web_template=samples/web_only.yml
 646     data_template=samples/data.yml
 647     web_file=containers/$app_name.yml
 648     data_file=containers/$data_name.yml
 649 else
 650   app_name=app
 651   data_name=app
 652   web_template=samples/standalone.yml
 653   data_template=""
 654   web_file=containers/$app_name.yml
 655   data_file=containers/$app_name.yml
 656 fi
 657     changelog=/tmp/changelog
 658
 659 ##
 660 ## Check requirements before creating a copy of a config file we won't edit
 661 ##
 662 check_root
 663 check_and_install_docker
 664 check_disk_and_memory
 665
 666 if [ -a "$web_file" ]
 667 then
 668   echo "The configuration file $web_file already exists!"
 669   echo
 670   echo ". . . reconfiguring . . ."
 671   echo
 672   echo
 673   DATE=`date +"%Y-%m-%d-%H%M%S"`
 674   BACKUP=$app_name.yml.$DATE.bak
 675   echo Saving old file as $BACKUP
 676   cp $web_file containers/$BACKUP
 677   echo "Stopping existing container in 5 seconds or Control-C to cancel."
 678   sleep 5
 679   ./launcher stop app
 680   echo
 681 else
 682   check_ports
 683   cp -v $web_template $web_file
 684   if [ "$data_name" == "data" ]
 685   then
 686       echo "--------------------------------------------------"
 687       echo "This two container setup is currently unsupported. Use at your own risk!"
 688       echo "--------------------------------------------------"
 689       DISCOURSE_DB_PASSWORD=`date +%s | sha256sum | base64 | head -c 20`
 690
 691      sed -i -e "s/DISCOURSE_DB_PASSWORD: SOME_SECRET/DISCOURSE_DB_PASSWORD: $DISCOURSE_DB_PASSWORD/w $changelog" $web_file
 692      if  [ -s $changelog ]
 693      then
 694          rm $changelog
 695      else
 696        echo "Problem changing DISCOURSE_DB_PASSWORD" in $web_file
 697      fi
 698
 699      cp -v $data_template $data_file
 700      quote=\'
 701      sed -i -e "s/password ${quote}SOME_SECRET${quote}/password '$DISCOURSE_DB_PASSWORD'/w $changelog" $data_file
 702      if  [ -s $changelog ]
 703      then
 704          rm $changelog
 705      else
 706        echo "Problem changing DISCOURSE_DB_PASSWORD" in $data_file
 707      fi
 708   fi
 709 fi
 710
 711 scale_ram_and_cpu
 712 ask_user_for_config
 713 validate_config
 714
 715 ##
 716 ## if we reach this point without exiting, OK to proceed
 717 ## rebuild won't fail if there's nothing to rebuild and does the restart
 718 ##
 719 echo "Updates successful. Rebuilding in 5 seconds."
 720 sleep 5 # Just a chance to ^C in case they were too fast on the draw
 721 if [ "$data_name" == "$app_name" ]
 722 then
 723     echo Building $app_name
 724     ./launcher rebuild $app_name
 725 else
 726     echo Building $data_name now . . .
 727     ./launcher rebuild $data_name
 728     echo Building $app_name now . . .
 729     ./launcher rebuild $app_name
 730 fi