[discourse_docker.git] / discourse-setup

#!/bin/bash

##
## Make sure only root can run our script
##
check_root() {
  if [[ $EUID -ne 0 ]]; then
    echo "This script must be run as root. Please sudo or log in as root first." 1>&2
    exit 1
  fi
}


## 
## Do we have docker?
##
check_and_install_docker () {
  docker_path=`which docker.io || which docker`
  if [ -z $docker_path ]; then
    read  -p "Docker not installed. Enter to install from https://get.docker.com/ or Ctrl+C to exit"
    curl https://get.docker.com/ | sh    
  fi
  docker_path=`which docker.io || which docker`
  if [ -z $docker_path ]; then
    echo Docker install failed. Quitting.
    exit
  fi
}

 
##
## Do we have enough memory and disk space for Discourse?
##
check_disk_and_memory() {
  
  avail_mem=`free -g --si | awk ' /Mem:/  {print $2} '`
  if [ "$avail_mem" -lt 1 ]; then
    echo "WARNING: Discourse requires 1GB RAM to run. This system does not appear"
    echo "to have sufficient memory."
    echo
    echo "Your site may not work properly, or future upgrades of Discourse may not"
    echo "complete successfully."
    echo exit 1
  fi
    
  if [ "$avail_mem" -lt 2 ]; then
    total_swap=`free -g --si | awk ' /Swap:/  {print $2} '`
    if [ "$total_swap" -lt 2 ]; then
      echo "WARNING: Discourse requires at least 2GB of swap when running with less "
      echo "than 2GB of RAM. This system does not appear to have sufficient swap space."
      echo
      echo "Without sufficient swap space, your site may not work properly, and future"
      echo "upgrades of Discourse may not complete successfully."
      echo
      read -p "ENTER to create a 2GB swapfile now, or Ctrl+C to exit"
      
      ##
      ## derived from https://meta.discourse.org/t/13880
      ## 
      install -o root -g root -m 0600 /dev/null /swapfile
      dd if=/dev/zero of=/swapfile bs=1k count=2048k
      mkswap /swapfile
      swapon /swapfile
      echo "/swapfile       swap    swap    auto      0       0" | tee -a /etc/fstab
      sysctl -w vm.swappiness=10
      echo vm.swappiness = 10 | tee -a /etc/sysctl.conf

      total_swap=`free -g --si | awk ' /Swap:/ {print $2} '`
      if [ "$total_swap" -lt 2 ]; then
        echo "Failed to create swap, sorry!"
        exit 1
      fi
      
    fi
  fi


  free_disk="$(df /var | tail -n 1 | awk '{print $4}')"
  if [ "$free_disk" -lt 5000 ]; then
    echo "WARNING: Discourse requires at least 5GB free disk space. This system"
    echo "does not appear to have sufficient disk space."
    echo
    echo "Insufficient disk space may result in problems running your site, and"
    echo "may not even allow Discourse installation to complete successfully."
    echo
    echo "Please free up some space, or expand your disk, before continuing."
    echo
    echo "Run \`apt-get autoremove && apt-get autoclean\` to clean up unused"
    echo "packages and \`./launcher cleanup\` to remove stale Docker containers."
    exit 1
  fi

}


##
## If we have lots of RAM or lots of CPUs, bump up the defaults to scale better
##
scale_ram_and_cpu() {

  local changelog=/tmp/changelog.$PPID
  # grab info about total system ram and physical (NOT LOGICAL!) CPU cores
  avail_gb="$(LANG=C free -g --si | grep '^Mem:' | awk '{print $2}')"
  avail_cores=`cat /proc/cpuinfo | grep "cpu cores" | uniq | awk '{print $4}'`
  echo "Found ${avail_gb}GB of memory and $avail_cores physical CPU cores"

  # db_shared_buffers: 128MB for 1GB, 256MB for 2GB, or 256MB * GB, max 4096MB
  if [ "$avail_gb" -eq "1" ]
  then
    db_shared_buffers=128
  else
    if [ "$avail_gb" -eq "2" ]
    then
      db_shared_buffers=256
    else
      db_shared_buffers=$(( 256 * $avail_gb ))
    fi
  fi
  db_shared_buffers=$(( db_shared_buffers < 4096 ? db_shared_buffers : 4096 ))

  sed -i -e "s/^  #db_shared_buffers:.*/  db_shared_buffers: \"${db_shared_buffers}MB\"/w $changelog" $config_file
  if [ -s $changelog ]
  then
    echo "setting db_shared_buffers = ${db_shared_buffers}MB"
    rm $changelog
  fi

  # UNICORN_WORKERS: 2 * GB for 2GB or less, or 2 * CPU, max 8
  if [ "$avail_gb" -le "2" ]
  then
    unicorn_workers=$(( 2 * $avail_gb ))
  else
    unicorn_workers=$(( 2 * $avail_cores ))
  fi
  unicorn_workers=$(( unicorn_workers < 8 ? unicorn_workers : 8 ))

  sed -i -e "s/^  #UNICORN_WORKERS:.*/  UNICORN_WORKERS: ${unicorn_workers}/w $changelog" $config_file
  if [ -s $changelog ]
  then
      echo "setting UNICORN_WORKERS = ${unicorn_workers}"
      rm $changelog
  fi

}


## 
## standard http / https ports must not be occupied
##
check_ports() {
    check_port "80"
    check_port "443"
    echo "Ports 80 and 443 are free for use"
}


##
## check a port to see if it is already in use
##
check_port() {
  
  local valid=$(netstat -tln | awk '{print $4}' | grep ":${1}\$")

  if [ -n "$valid" ]; then
    echo "Port ${1} appears to already be in use."
    echo
    echo "If you are trying to run Discourse simultaneously with another web"
    echo "server like Apache or nginx, you will need to bind to a different port"
    echo 
    echo "See https://meta.discourse.org/t/17247"
    exit 1
  fi
}

##
## prompt user for typical Discourse config file values
##
ask_user_for_config() {
  
  local changelog=/tmp/changelog.$PPID
  local hostname="discourse.example.com"
  local developer_emails="me@example.com,you@example.com"
  local smtp_address="smtp.example.com"
  local smtp_port="587"
  local smtp_user_name="postmaster@discourse.example.com"  
  local smtp_password=""
  local letsencrypt_account_email="me@example.com"
  local letsencrypt_status="ENTER to skip"

  local new_value=""
  local config_ok="n"
  local update_ok="y"
  
  echo ""

  while [[ "$config_ok" == "n" ]]
  do
    if [ ! -z $hostname ]
    then
      read -p "Hostname for your Discourse? [$hostname]: " new_value
      if [ ! -z $new_value ]
      then
          hostname=$new_value
      fi
    fi
    
    if [ ! -z $developer_emails ]
    then
      read -p "Email address for admin account? [$developer_emails]: " new_value
      if [ ! -z $new_value ]
      then
          developer_emails=$new_value
      fi
    fi
    
    if [ ! -z $smtp_address ]
    then
      read -p "SMTP server address? [$smtp_address]: " new_value
      if [ ! -z $new_value ]
      then
        smtp_address=$new_value
      fi
    fi
    
    if [ ! -z $smtp_port ]
    then
      read -p "SMTP port? [$smtp_port]: " new_value
      if [ ! -z $new_value ]
      then
        smtp_port=$new_value
      fi
    fi
    
    ##
    ## automatically set correct user name based on common mail providers
    ##
    if [ "$smtp_address" == "smtp.sparkpostmail.com" ]
    then
    	smtp_user_name="SMTP_Injection"
    fi    
    if [ "$smtp_address" == "smtp.sendgrid.net" ]
    then
	    smtp_user_name="apikey"
    fi
    if [ "$smtp_address" == "smtp.mailgun.org" ]
    then
	    smtp_user_name="postmaster@$hostname"
    fi
    
    if [ ! -z $smtp_user_name ]
    then
      read -p "SMTP user name? [$smtp_user_name]: " new_value
      if [ ! -z $new_value ]
      then
          smtp_user_name=$new_value
      fi
    fi
    
    read -p "SMTP password? [$smtp_password]: " new_value
    if [ ! -z $new_value ]
    then
        smtp_password=$new_value
    fi
    
    if [ ! -z $letsencrypt_account_email ]
    then
      read -p "Let's Encrypt account email? ($letsencrypt_status) [$letsencrypt_account_email]: " new_value
      if [ ! -z $new_value ]
      then
          letsencrypt_account_email=$new_value
          if [ "$new_value" == "off" ]
          then
            letsencrypt_status="ENTER to skip"
          else
            letsencrypt_status="Enter 'OFF' to disable."
          fi
      fi
    fi

    echo -e "\nDoes this look right?\n"
    echo "Hostname      : $hostname"
    echo "Email         : $developer_emails"
    echo "SMTP address  : $smtp_address"
    echo "SMTP port     : $smtp_port"
    echo "SMTP username : $smtp_user_name"
    echo "SMTP password : $smtp_password"
    
    if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
    then
      echo "Let's Encrypt : $letsencrypt_account_email"
    fi
    
    echo ""
    read -p "ENTER to continue, 'n' to try again, Ctrl+C to exit: " config_ok
  done

  sed -i -e "s/^  DISCOURSE_HOSTNAME:.*/  DISCOURSE_HOSTNAME: $hostname/w $changelog" $config_file
  if [ -s $changelog ]
  then
    rm $changelog
  else
    echo "DISCOURSE_HOSTNAME change failed."
    update_ok="n"
  fi

  sed -i -e "s/^  DISCOURSE_DEVELOPER_EMAILS:.*/  DISCOURSE_DEVELOPER_EMAILS: \'$developer_emails\'/w $changelog" $config_file
  if [ -s $changelog ]
  then
    rm $changelog
  else
    echo "DISCOURSE_DEVELOPER_EMAILS change failed."
    update_ok="n"
  fi

  sed -i -e "s/^  DISCOURSE_SMTP_ADDRESS:.*/  DISCOURSE_SMTP_ADDRESS: $smtp_address/w $changelog" $config_file
  if [ -s $changelog ]
  then
    rm $changelog
  else
    echo "DISCOURSE_SMTP_ADDRESS change failed."
    update_ok="n"
  fi

  sed -i -e "s/^  #DISCOURSE_SMTP_PORT:.*/  DISCOURSE_SMTP_PORT: $smtp_port/w $changelog" $config_file
  if [ -s $changelog ]
  then
    rm $changelog
  else
    echo "DISCOURSE_SMTP_PORT change failed."
    update_ok="n"
  fi

  sed -i -e "s/^  #DISCOURSE_SMTP_USER_NAME:.*/  DISCOURSE_SMTP_USER_NAME: $smtp_user_name/w $changelog" $config_file
  if [ -s $changelog ]
  then
    rm $changelog
  else
    echo "DISCOURSE_SMTP_USER_NAME change failed."
    update_ok="n"
  fi

  sed -i -e "s/^  #DISCOURSE_SMTP_PASSWORD:.*/  DISCOURSE_SMTP_PASSWORD: \"${smtp_password/\//\\/}\"/w $changelog" $config_file
  if [ -s $changelog ]
  then
      rm $changelog
  else
    echo "DISCOURSE_SMTP_PASSWORD change failed."
    update_ok="n"
  fi

  if [ "$letsencrypt_status" != "ENTER to skip" ]
  then
      sed -i -e "s/^  #LETSENCRYPT_ACCOUNT_EMAIL:.*/  LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email/w $changelog" $config_file
      if [ -s $changelog ]
      then
        rm $changelog
      else
        echo "LETSENCRYPT_ACCOUNT_EMAIL change failed."
        update_ok="n"
      fi
      local src='^  #- "templates\/web.ssl.template.yml"'
      local dst='  \- "templates\/web.ssl.template.yml"'
      sed -i -e "s/$src/$dst/w $changelog" $config_file
      if [ -s $changelog ]
      then
	  echo "web.ssl.template.yml enabled"
      else
        update_ok="n"
        echo "web.ssl.template.yml NOT ENABLED--was it on already?"
      fi
      local src='^  #- "templates\/web.letsencrypt.ssl.template.yml"'
      local dst='  - "templates\/web.letsencrypt.ssl.template.yml"'

      sed -i -e "s/$src/$dst/w $changelog" $config_file
      if [ -s $changelog ]
      then
	      echo "letsencrypt.ssl.template.yml enabled"
      else
        update_ok="n"
        echo "letsencrypt.ssl.template.yml NOT ENABLED -- was it on already?"
      fi
  fi 

  if [ "$update_ok" == "y" ]
  then
    echo -e "\nConfiguration file at $config_file updated successfully!\n"
  else
    echo -e "\nUnfortunately, there was an error changing $config_file\n"
    exit 1
  fi
}

##
## is our config file valid? Does it have the required fields set?
##
validate_config() {

  valid_config="y"
  
  for x in DISCOURSE_SMTP_ADDRESS DISCOURSE_SMTP_USER_NAME DISCOURSE_SMTP_PASSWORD \
           DISCOURSE_DEVELOPER_EMAILS DISCOURSE_HOSTNAME
  do
    config_line=`grep "^  $x:" $config_file` 
    local result=$?
    local default="example.com"

    if (( result == 0 ))
    then
      if [[ $config_line = *"$default"* ]]
      then
        echo "$x left at incorrect default of example.com"
        valid_config="n"
      fi
      config_val=`echo $config_line | awk '{print $2}'`
      if [ -z $config_val ]
      then
        echo "$x was left blank"
        valid_config="n"
      fi
    else
      echo "$x not present"
      valid_config="n"
    fi
  done
  
  if [ "$valid_config" != "y" ]; then
    echo -e "\nSorry, these $config_file settings aren't valid -- can't continue!"
    echo "If you have unusual requirements, edit $config_file and then: "
    echo "./launcher bootstrap $app_name"
    exit 1
  fi
}


##
## template file names
##
app_name=app
template_path=samples/standalone.yml
config_file=containers/$app_name.yml
changelog=/tmp/changelog

##
## Check requirements before creating a copy of a config file we won't edit
##
check_root
check_and_install_docker
check_disk_and_memory
check_ports

##
## make a copy of the simple standalone config file
##
if [ -a $config_file ]
then
  echo "The configuration file $config_file already exists!"
  echo ""
  echo "If you want to delete your old configuration file and start over:"
  echo "rm $config_file"
  exit 1
else
  cp $template_path $config_file
fi

scale_ram_and_cpu
ask_user_for_config
validate_config

##
## if we reach this point without exiting, OK to proceed
##
./launcher bootstrap $app_name && ./launcher start $app_name
Commit	Line	Data
c2d3ee4a JA	1	#!/bin/bash
c2d3ee4a JA	2
ebdd72f3 JA	3	##
	4	## Make sure only root can run our script
	5	##
	6	check_root() {
	7	if [[ $EUID -ne 0 ]]; then
	8	echo "This script must be run as root. Please sudo or log in as root first." 1>&2
	9	exit 1
	10	fi
	11	}
	12
18602189 JP	13
	14	##
	15	## Do we have docker?
	16	##
	17	check_and_install_docker () {
7cf781fc	18	docker_path=`which docker.io \|\| which docker`
18602189 JP	19	if [ -z $docker_path ]; then
	20	read -p "Docker not installed. Enter to install from https://get.docker.com/ or Ctrl+C to exit"
	21	curl https://get.docker.com/ \| sh
	22	fi
7cf781fc	23	docker_path=`which docker.io \|\| which docker`
18602189 JP	24	if [ -z $docker_path ]; then
	25	echo Docker install failed. Quitting.
	26	exit
	27	fi
	28	}
	29
	30
c2d3ee4a JA	31	##
	32	## Do we have enough memory and disk space for Discourse?
	33	##
	34	check_disk_and_memory() {
	35
c6374a12 JP	36	avail_mem=`free -g --si \| awk ' /Mem:/ {print $2} '`
c6374a12 JP	37	if [ "$avail_mem" -lt 1 ]; then
51890305 JA	38	echo "WARNING: Discourse requires 1GB RAM to run. This system does not appear"
51890305 JA	39	echo "to have sufficient memory."
c2d3ee4a	40	echo
51890305 JA	41	echo "Your site may not work properly, or future upgrades of Discourse may not"
51890305 JA	42	echo "complete successfully."
c6374a12	43	echo exit 1
cdd99376 JA	44	fi
cdd99376 JA	45
c6374a12 JP	46	if [ "$avail_mem" -lt 2 ]; then
	47	total_swap=`free -g --si \| awk ' /Swap:/ {print $2} '`
	48	if [ "$total_swap" -lt 2 ]; then
e81c0250	49	echo "WARNING: Discourse requires at least 2GB of swap when running with less "
51890305	50	echo "than 2GB of RAM. This system does not appear to have sufficient swap space."
c2d3ee4a	51	echo
8f70d450	52	echo "Without sufficient swap space, your site may not work properly, and future"
51890305	53	echo "upgrades of Discourse may not complete successfully."
c2d3ee4a	54	echo
ac1a2d67	55	read -p "ENTER to create a 2GB swapfile now, or Ctrl+C to exit"
8f70d450 JA	56
	57	##
	58	## derived from https://meta.discourse.org/t/13880
	59	##
	60	install -o root -g root -m 0600 /dev/null /swapfile
	61	dd if=/dev/zero of=/swapfile bs=1k count=2048k
	62	mkswap /swapfile
	63	swapon /swapfile
7c2777f9	64	echo "/swapfile swap swap auto 0 0" \| tee -a /etc/fstab
7802f679	65	sysctl -w vm.swappiness=10
7c2777f9	66	echo vm.swappiness = 10 \| tee -a /etc/sysctl.conf
8f70d450	67
c6374a12 JP	68	total_swap=`free -g --si \| awk ' /Swap:/ {print $2} '`
c6374a12 JP	69	if [ "$total_swap" -lt 2 ]; then
8f70d450 JA	70	echo "Failed to create swap, sorry!"
	71	exit 1
	72	fi
	73
c2d3ee4a JA	74	fi
	75	fi
	76
c6374a12	77
c2d3ee4a JA	78	free_disk="$(df /var \| tail -n 1 \| awk '{print $4}')"
c2d3ee4a JA	79	if [ "$free_disk" -lt 5000 ]; then
51890305 JA	80	echo "WARNING: Discourse requires at least 5GB free disk space. This system"
51890305 JA	81	echo "does not appear to have sufficient disk space."
c2d3ee4a	82	echo
51890305 JA	83	echo "Insufficient disk space may result in problems running your site, and"
51890305 JA	84	echo "may not even allow Discourse installation to complete successfully."
c2d3ee4a JA	85	echo
	86	echo "Please free up some space, or expand your disk, before continuing."
	87	echo
51890305 JA	88	echo "Run \`apt-get autoremove && apt-get autoclean\` to clean up unused"
51890305 JA	89	echo "packages and \`./launcher cleanup\` to remove stale Docker containers."
c2d3ee4a JA	90	exit 1
	91	fi
	92
c2d3ee4a JA	93	}
	94
	95
	96	##
	97	## If we have lots of RAM or lots of CPUs, bump up the defaults to scale better
	98	##
	99	scale_ram_and_cpu() {
	100
642b870f	101	local changelog=/tmp/changelog.$PPID
c2d3ee4a	102	# grab info about total system ram and physical (NOT LOGICAL!) CPU cores
c6374a12	103	avail_gb="$(LANG=C free -g --si \| grep '^Mem:' \| awk '{print $2}')"
c2d3ee4a JA	104	avail_cores=`cat /proc/cpuinfo \| grep "cpu cores" \| uniq \| awk '{print $4}'`
	105	echo "Found ${avail_gb}GB of memory and $avail_cores physical CPU cores"
	106
	107	# db_shared_buffers: 128MB for 1GB, 256MB for 2GB, or 256MB * GB, max 4096MB
	108	if [ "$avail_gb" -eq "1" ]
	109	then
	110	db_shared_buffers=128
	111	else
	112	if [ "$avail_gb" -eq "2" ]
	113	then
	114	db_shared_buffers=256
	115	else
	116	db_shared_buffers=$(( 256 * $avail_gb ))
	117	fi
	118	fi
	119	db_shared_buffers=$(( db_shared_buffers < 4096 ? db_shared_buffers : 4096 ))
	120
	121	sed -i -e "s/^ #db_shared_buffers:.*/ db_shared_buffers: \"${db_shared_buffers}MB\"/w $changelog" $config_file
	122	if [ -s $changelog ]
	123	then
	124	echo "setting db_shared_buffers = ${db_shared_buffers}MB"
	125	rm $changelog
	126	fi
	127
c2d3ee4a JA	128	# UNICORN_WORKERS: 2 * GB for 2GB or less, or 2 * CPU, max 8
	129	if [ "$avail_gb" -le "2" ]
	130	then
	131	unicorn_workers=$(( 2 * $avail_gb ))
	132	else
	133	unicorn_workers=$(( 2 * $avail_cores ))
	134	fi
	135	unicorn_workers=$(( unicorn_workers < 8 ? unicorn_workers : 8 ))
	136
	137	sed -i -e "s/^ #UNICORN_WORKERS:.*/ UNICORN_WORKERS: ${unicorn_workers}/w $changelog" $config_file
	138	if [ -s $changelog ]
	139	then
	140	echo "setting UNICORN_WORKERS = ${unicorn_workers}"
	141	rm $changelog
	142	fi
	143
	144	}
	145
	146
	147	##
	148	## standard http / https ports must not be occupied
	149	##
	150	check_ports() {
	151	check_port "80"
	152	check_port "443"
	153	echo "Ports 80 and 443 are free for use"
	154	}
	155
	156
	157	##
	158	## check a port to see if it is already in use
	159	##
	160	check_port() {
	161
	162	local valid=$(netstat -tln \| awk '{print $4}' \| grep ":${1}\$")
	163
	164	if [ -n "$valid" ]; then
	165	echo "Port ${1} appears to already be in use."
	166	echo
51890305 JA	167	echo "If you are trying to run Discourse simultaneously with another web"
	168	echo "server like Apache or nginx, you will need to bind to a different port"
	169	echo
	170	echo "See https://meta.discourse.org/t/17247"
c2d3ee4a JA	171	exit 1
	172	fi
	173	}
	174
	175	##
	176	## prompt user for typical Discourse config file values
	177	##
4b1b25e3	178	ask_user_for_config() {
c2d3ee4a	179
642b870f	180	local changelog=/tmp/changelog.$PPID
c2d3ee4a	181	local hostname="discourse.example.com"
642b870f	182	local developer_emails="me@example.com,you@example.com"
c2d3ee4a	183	local smtp_address="smtp.example.com"
7c2777f9 JA	184	local smtp_port="587"
7c2777f9 JA	185	local smtp_user_name="postmaster@discourse.example.com"
c2d3ee4a JA	186	local smtp_password=""
	187	local letsencrypt_account_email="me@example.com"
	188	local letsencrypt_status="ENTER to skip"
	189
	190	local new_value=""
	191	local config_ok="n"
	192	local update_ok="y"
	193
	194	echo ""
	195
	196	while [[ "$config_ok" == "n" ]]
	197	do
	198	if [ ! -z $hostname ]
	199	then
	200	read -p "Hostname for your Discourse? [$hostname]: " new_value
	201	if [ ! -z $new_value ]
	202	then
	203	hostname=$new_value
	204	fi
	205	fi
	206
	207	if [ ! -z $developer_emails ]
	208	then
	209	read -p "Email address for admin account? [$developer_emails]: " new_value
	210	if [ ! -z $new_value ]
	211	then
	212	developer_emails=$new_value
	213	fi
	214	fi
	215
	216	if [ ! -z $smtp_address ]
	217	then
	218	read -p "SMTP server address? [$smtp_address]: " new_value
	219	if [ ! -z $new_value ]
	220	then
	221	smtp_address=$new_value
	222	fi
	223	fi
	224
7c2777f9	225	if [ ! -z $smtp_port ]
c2d3ee4a	226	then
7c2777f9 JA	227	read -p "SMTP port? [$smtp_port]: " new_value
	228	if [ ! -z $new_value ]
	229	then
	230	smtp_port=$new_value
	231	fi
c2d3ee4a JA	232	fi
c2d3ee4a JA	233
7c2777f9 JA	234	##
	235	## automatically set correct user name based on common mail providers
	236	##
	237	if [ "$smtp_address" == "smtp.sparkpostmail.com" ]
	238	then
	239	smtp_user_name="SMTP_Injection"
	240	fi
c2d3ee4a JA	241	if [ "$smtp_address" == "smtp.sendgrid.net" ]
	242	then
	243	smtp_user_name="apikey"
	244	fi
7c2777f9 JA	245	if [ "$smtp_address" == "smtp.mailgun.org" ]
	246	then
	247	smtp_user_name="postmaster@$hostname"
	248	fi
c2d3ee4a JA	249
	250	if [ ! -z $smtp_user_name ]
	251	then
	252	read -p "SMTP user name? [$smtp_user_name]: " new_value
	253	if [ ! -z $new_value ]
	254	then
	255	smtp_user_name=$new_value
	256	fi
	257	fi
	258
	259	read -p "SMTP password? [$smtp_password]: " new_value
	260	if [ ! -z $new_value ]
	261	then
	262	smtp_password=$new_value
	263	fi
	264
	265	if [ ! -z $letsencrypt_account_email ]
	266	then
	267	read -p "Let's Encrypt account email? ($letsencrypt_status) [$letsencrypt_account_email]: " new_value
	268	if [ ! -z $new_value ]
	269	then
	270	letsencrypt_account_email=$new_value
	271	if [ "$new_value" == "off" ]
	272	then
	273	letsencrypt_status="ENTER to skip"
	274	else
	275	letsencrypt_status="Enter 'OFF' to disable."
	276	fi
	277	fi
	278	fi
	279
51890305	280	echo -e "\nDoes this look right?\n"
c2d3ee4a JA	281	echo "Hostname : $hostname"
	282	echo "Email : $developer_emails"
	283	echo "SMTP address : $smtp_address"
7c2777f9	284	echo "SMTP port : $smtp_port"
c2d3ee4a JA	285	echo "SMTP username : $smtp_user_name"
	286	echo "SMTP password : $smtp_password"
	287
	288	if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
	289	then
	290	echo "Let's Encrypt : $letsencrypt_account_email"
	291	fi
	292
	293	echo ""
ac1a2d67	294	read -p "ENTER to continue, 'n' to try again, Ctrl+C to exit: " config_ok
c2d3ee4a JA	295	done
c2d3ee4a JA	296
013b5931	297	sed -i -e "s/^ DISCOURSE_HOSTNAME:.*/ DISCOURSE_HOSTNAME: $hostname/w $changelog" $config_file
c2d3ee4a JA	298	if [ -s $changelog ]
	299	then
	300	rm $changelog
	301	else
	302	echo "DISCOURSE_HOSTNAME change failed."
	303	update_ok="n"
	304	fi
	305
	306	sed -i -e "s/^ DISCOURSE_DEVELOPER_EMAILS:.*/ DISCOURSE_DEVELOPER_EMAILS: \'$developer_emails\'/w $changelog" $config_file
	307	if [ -s $changelog ]
	308	then
	309	rm $changelog
	310	else
	311	echo "DISCOURSE_DEVELOPER_EMAILS change failed."
	312	update_ok="n"
	313	fi
	314
013b5931	315	sed -i -e "s/^ DISCOURSE_SMTP_ADDRESS:.*/ DISCOURSE_SMTP_ADDRESS: $smtp_address/w $changelog" $config_file
c2d3ee4a JA	316	if [ -s $changelog ]
	317	then
	318	rm $changelog
	319	else
	320	echo "DISCOURSE_SMTP_ADDRESS change failed."
	321	update_ok="n"
	322	fi
	323
7c2777f9 JA	324	sed -i -e "s/^ #DISCOURSE_SMTP_PORT:.*/ DISCOURSE_SMTP_PORT: $smtp_port/w $changelog" $config_file
	325	if [ -s $changelog ]
	326	then
	327	rm $changelog
	328	else
	329	echo "DISCOURSE_SMTP_PORT change failed."
	330	update_ok="n"
	331	fi
	332
013b5931	333	sed -i -e "s/^ #DISCOURSE_SMTP_USER_NAME:.*/ DISCOURSE_SMTP_USER_NAME: $smtp_user_name/w $changelog" $config_file
c2d3ee4a JA	334	if [ -s $changelog ]
	335	then
	336	rm $changelog
	337	else
	338	echo "DISCOURSE_SMTP_USER_NAME change failed."
	339	update_ok="n"
	340	fi
	341
63b6095f	342	sed -i -e "s/^ #DISCOURSE_SMTP_PASSWORD:.*/ DISCOURSE_SMTP_PASSWORD: \"${smtp_password/\//\\/}\"/w $changelog" $config_file
c2d3ee4a JA	343	if [ -s $changelog ]
	344	then
	345	rm $changelog
	346	else
	347	echo "DISCOURSE_SMTP_PASSWORD change failed."
	348	update_ok="n"
	349	fi
	350
	351	if [ "$letsencrypt_status" != "ENTER to skip" ]
	352	then
642b870f	353	sed -i -e "s/^ #LETSENCRYPT_ACCOUNT_EMAIL:.*/ LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email/w $changelog" $config_file
c2d3ee4a JA	354	if [ -s $changelog ]
	355	then
	356	rm $changelog
	357	else
	358	echo "LETSENCRYPT_ACCOUNT_EMAIL change failed."
	359	update_ok="n"
	360	fi
	361	local src='^ #- "templates\/web.ssl.template.yml"'
	362	local dst=' \- "templates\/web.ssl.template.yml"'
	363	sed -i -e "s/$src/$dst/w $changelog" $config_file
	364	if [ -s $changelog ]
	365	then
642b870f	366	echo "web.ssl.template.yml enabled"
c2d3ee4a JA	367	else
	368	update_ok="n"
	369	echo "web.ssl.template.yml NOT ENABLED--was it on already?"
	370	fi
	371	local src='^ #- "templates\/web.letsencrypt.ssl.template.yml"'
	372	local dst=' - "templates\/web.letsencrypt.ssl.template.yml"'
	373
	374	sed -i -e "s/$src/$dst/w $changelog" $config_file
	375	if [ -s $changelog ]
	376	then
	377	echo "letsencrypt.ssl.template.yml enabled"
	378	else
	379	update_ok="n"
	380	echo "letsencrypt.ssl.template.yml NOT ENABLED -- was it on already?"
	381	fi
	382	fi
	383
	384	if [ "$update_ok" == "y" ]
	385	then
	386	echo -e "\nConfiguration file at $config_file updated successfully!\n"
	387	else
	388	echo -e "\nUnfortunately, there was an error changing $config_file\n"
	389	exit 1
	390	fi
	391	}
	392
	393	##
	394	## is our config file valid? Does it have the required fields set?
	395	##
4b1b25e3	396	validate_config() {
c2d3ee4a JA	397
	398	valid_config="y"
	399
	400	for x in DISCOURSE_SMTP_ADDRESS DISCOURSE_SMTP_USER_NAME DISCOURSE_SMTP_PASSWORD \
	401	DISCOURSE_DEVELOPER_EMAILS DISCOURSE_HOSTNAME
	402	do
	403	config_line=`grep "^ $x:" $config_file`
	404	local result=$?
	405	local default="example.com"
	406
	407	if (( result == 0 ))
	408	then
	409	if [[ $config_line = "$default" ]]
	410	then
	411	echo "$x left at incorrect default of example.com"
	412	valid_config="n"
	413	fi
	414	config_val=`echo $config_line \| awk '{print $2}'`
	415	if [ -z $config_val ]
	416	then
	417	echo "$x was left blank"
	418	valid_config="n"
	419	fi
	420	else
	421	echo "$x not present"
	422	valid_config="n"
	423	fi
	424	done
	425
	426	if [ "$valid_config" != "y" ]; then
	427	echo -e "\nSorry, these $config_file settings aren't valid -- can't continue!"
d8613c71 JA	428	echo "If you have unusual requirements, edit $config_file and then: "
d8613c71 JA	429	echo "./launcher bootstrap $app_name"
c2d3ee4a JA	430	exit 1
	431	fi
	432	}
	433
	434
	435	##
	436	## template file names
	437	##
	438	app_name=app
	439	template_path=samples/standalone.yml
	440	config_file=containers/$app_name.yml
	441	changelog=/tmp/changelog
	442
4b1b25e3 JA	443	##
	444	## Check requirements before creating a copy of a config file we won't edit
	445	##
ebdd72f3	446	check_root
18602189	447	check_and_install_docker
642b870f JP	448	check_disk_and_memory
	449	check_ports
	450
4b1b25e3	451	##
c2d3ee4a	452	## make a copy of the simple standalone config file
4b1b25e3	453	##
c2d3ee4a JA	454	if [ -a $config_file ]
	455	then
	456	echo "The configuration file $config_file already exists!"
	457	echo ""
	458	echo "If you want to delete your old configuration file and start over:"
	459	echo "rm $config_file"
	460	exit 1
	461	else
	462	cp $template_path $config_file
	463	fi
	464
c2d3ee4a	465	scale_ram_and_cpu
4b1b25e3 JA	466	ask_user_for_config
4b1b25e3 JA	467	validate_config
c2d3ee4a	468
4b1b25e3 JA	469	##
	470	## if we reach this point without exiting, OK to proceed
	471	##
02fd0d94	472	./launcher bootstrap $app_name && ./launcher start $app_name