[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 enough memory and disk space for Discourse?
##
check_disk_and_memory() {
  
  avail_mem="$(LANG=C free -m | grep '^Mem:' | awk '{print $2}')"
  if [ "$avail_mem" -lt 900 ]; 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."
    exit 1
  fi
    
  if [ "$avail_mem" -lt 1800 ]; then
    total_swap="$(LANG=C free -m | grep ^Swap: | awk '{print $2}')"
    if [ "$total_swap" -lt 1000 ]; then
      echo "WARNING: Discourse requires at least 1GB 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" | sudo tee -a /etc/fstab
      sysctl -w vm.swappiness=10
      echo vm.swappiness = 10 | sudo tee -a /etc/sysctl.conf

      total_swap="$(LANG=C free -m | grep ^Swap: | awk '{print $2}')"
      if [ "$total_swap" -lt 1000 ]; 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.$PPID
  # grab info about total system ram and physical (NOT LOGICAL!) CPU cores
  avail_mem="$(LANG=C free -m | grep '^Mem:' | awk '{print $2}')"
  avail_gb=$(( $avail_mem / 950 ))
  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_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 [ "$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 [ ! -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 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, or ^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_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_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 [[ $EUID -ne 0 ]]; then
	8	echo "This script must be run as root. Please sudo or log in as root first." 1>&2
	9	exit 1
	10	fi
	11	}
	12
c2d3ee4a JA	13	##
	14	## Do we have enough memory and disk space for Discourse?
	15	##
	16	check_disk_and_memory() {
	17
c2d3ee4a JA	18	avail_mem="$(LANG=C free -m \| grep '^Mem:' \| awk '{print $2}')"
c2d3ee4a JA	19	if [ "$avail_mem" -lt 900 ]; then
51890305 JA	20	echo "WARNING: Discourse requires 1GB RAM to run. This system does not appear"
51890305 JA	21	echo "to have sufficient memory."
c2d3ee4a	22	echo
51890305 JA	23	echo "Your site may not work properly, or future upgrades of Discourse may not"
51890305 JA	24	echo "complete successfully."
cdd99376 JA	25	exit 1
	26	fi
	27
	28	if [ "$avail_mem" -lt 1800 ]; then
c2d3ee4a JA	29	total_swap="$(LANG=C free -m \| grep ^Swap: \| awk '{print $2}')"
c2d3ee4a JA	30	if [ "$total_swap" -lt 1000 ]; then
51890305 JA	31	echo "WARNING: Discourse requires at least 1GB of swap when running with less "
51890305 JA	32	echo "than 2GB of RAM. This system does not appear to have sufficient swap space."
c2d3ee4a	33	echo
8f70d450	34	echo "Without sufficient swap space, your site may not work properly, and future"
51890305	35	echo "upgrades of Discourse may not complete successfully."
c2d3ee4a	36	echo
33c14f53	37	read -p "ENTER to create a 2GB swapfile now, or Ctrl-C to exit"
8f70d450 JA	38
	39	##
	40	## derived from https://meta.discourse.org/t/13880
	41	##
	42	install -o root -g root -m 0600 /dev/null /swapfile
	43	dd if=/dev/zero of=/swapfile bs=1k count=2048k
	44	mkswap /swapfile
	45	swapon /swapfile
	46	echo "/swapfile swap swap auto 0 0" \| sudo tee -a /etc/fstab
7802f679	47	sysctl -w vm.swappiness=10
8f70d450 JA	48	echo vm.swappiness = 10 \| sudo tee -a /etc/sysctl.conf
	49
	50	total_swap="$(LANG=C free -m \| grep ^Swap: \| awk '{print $2}')"
	51	if [ "$total_swap" -lt 1000 ]; then
	52	echo "Failed to create swap, sorry!"
	53	exit 1
	54	fi
	55
c2d3ee4a JA	56	fi
	57	fi
	58
	59	free_disk="$(df /var \| tail -n 1 \| awk '{print $4}')"
	60	if [ "$free_disk" -lt 5000 ]; then
51890305 JA	61	echo "WARNING: Discourse requires at least 5GB free disk space. This system"
51890305 JA	62	echo "does not appear to have sufficient disk space."
c2d3ee4a	63	echo
51890305 JA	64	echo "Insufficient disk space may result in problems running your site, and"
51890305 JA	65	echo "may not even allow Discourse installation to complete successfully."
c2d3ee4a JA	66	echo
	67	echo "Please free up some space, or expand your disk, before continuing."
	68	echo
51890305 JA	69	echo "Run \`apt-get autoremove && apt-get autoclean\` to clean up unused"
51890305 JA	70	echo "packages and \`./launcher cleanup\` to remove stale Docker containers."
c2d3ee4a JA	71	exit 1
	72	fi
	73
c2d3ee4a JA	74	}
	75
	76
	77	##
	78	## If we have lots of RAM or lots of CPUs, bump up the defaults to scale better
	79	##
	80	scale_ram_and_cpu() {
	81
642b870f	82	local changelog=/tmp/changelog.$PPID
c2d3ee4a JA	83	# grab info about total system ram and physical (NOT LOGICAL!) CPU cores
	84	avail_mem="$(LANG=C free -m \| grep '^Mem:' \| awk '{print $2}')"
	85	avail_gb=$(( $avail_mem / 950 ))
	86	avail_cores=`cat /proc/cpuinfo \| grep "cpu cores" \| uniq \| awk '{print $4}'`
	87	echo "Found ${avail_gb}GB of memory and $avail_cores physical CPU cores"
	88
	89	# db_shared_buffers: 128MB for 1GB, 256MB for 2GB, or 256MB * GB, max 4096MB
	90	if [ "$avail_gb" -eq "1" ]
	91	then
	92	db_shared_buffers=128
	93	else
	94	if [ "$avail_gb" -eq "2" ]
	95	then
	96	db_shared_buffers=256
	97	else
	98	db_shared_buffers=$(( 256 * $avail_gb ))
	99	fi
	100	fi
	101	db_shared_buffers=$(( db_shared_buffers < 4096 ? db_shared_buffers : 4096 ))
	102
	103	sed -i -e "s/^ #db_shared_buffers:.*/ db_shared_buffers: \"${db_shared_buffers}MB\"/w $changelog" $config_file
	104	if [ -s $changelog ]
	105	then
	106	echo "setting db_shared_buffers = ${db_shared_buffers}MB"
	107	rm $changelog
	108	fi
	109
c2d3ee4a JA	110	# UNICORN_WORKERS: 2 * GB for 2GB or less, or 2 * CPU, max 8
	111	if [ "$avail_gb" -le "2" ]
	112	then
	113	unicorn_workers=$(( 2 * $avail_gb ))
	114	else
	115	unicorn_workers=$(( 2 * $avail_cores ))
	116	fi
	117	unicorn_workers=$(( unicorn_workers < 8 ? unicorn_workers : 8 ))
	118
	119	sed -i -e "s/^ #UNICORN_WORKERS:.*/ UNICORN_WORKERS: ${unicorn_workers}/w $changelog" $config_file
	120	if [ -s $changelog ]
	121	then
	122	echo "setting UNICORN_WORKERS = ${unicorn_workers}"
	123	rm $changelog
	124	fi
	125
	126	}
	127
	128
	129	##
	130	## standard http / https ports must not be occupied
	131	##
	132	check_ports() {
	133	check_port "80"
	134	check_port "443"
	135	echo "Ports 80 and 443 are free for use"
	136	}
	137
	138
	139	##
	140	## check a port to see if it is already in use
	141	##
	142	check_port() {
	143
	144	local valid=$(netstat -tln \| awk '{print $4}' \| grep ":${1}\$")
	145
	146	if [ -n "$valid" ]; then
	147	echo "Port ${1} appears to already be in use."
	148	echo
51890305 JA	149	echo "If you are trying to run Discourse simultaneously with another web"
	150	echo "server like Apache or nginx, you will need to bind to a different port"
	151	echo
	152	echo "See https://meta.discourse.org/t/17247"
c2d3ee4a JA	153	exit 1
	154	fi
	155	}
	156
	157	##
	158	## prompt user for typical Discourse config file values
	159	##
4b1b25e3	160	ask_user_for_config() {
c2d3ee4a	161
642b870f	162	local changelog=/tmp/changelog.$PPID
c2d3ee4a	163	local hostname="discourse.example.com"
642b870f	164	local developer_emails="me@example.com,you@example.com"
c2d3ee4a JA	165	local smtp_address="smtp.example.com"
	166	local smtp_user_name="postmaster@discourse.example.com"
	167	local smtp_password=""
	168	local letsencrypt_account_email="me@example.com"
	169	local letsencrypt_status="ENTER to skip"
	170
	171	local new_value=""
	172	local config_ok="n"
	173	local update_ok="y"
	174
	175	echo ""
	176
	177	while [[ "$config_ok" == "n" ]]
	178	do
	179	if [ ! -z $hostname ]
	180	then
	181	read -p "Hostname for your Discourse? [$hostname]: " new_value
	182	if [ ! -z $new_value ]
	183	then
	184	hostname=$new_value
	185	fi
	186	fi
	187
	188	if [ ! -z $developer_emails ]
	189	then
	190	read -p "Email address for admin account? [$developer_emails]: " new_value
	191	if [ ! -z $new_value ]
	192	then
	193	developer_emails=$new_value
	194	fi
	195	fi
	196
	197	if [ ! -z $smtp_address ]
	198	then
	199	read -p "SMTP server address? [$smtp_address]: " new_value
	200	if [ ! -z $new_value ]
	201	then
	202	smtp_address=$new_value
	203	fi
	204	fi
	205
	206	if [ "$smtp_address" == "smtp.sparkpostmail.com" ]
	207	then
	208	smtp_user_name="SMTP_Injection"
	209	fi
	210
	211	if [ "$smtp_address" == "smtp.sendgrid.net" ]
	212	then
	213	smtp_user_name="apikey"
	214	fi
	215
	216	if [ ! -z $smtp_user_name ]
	217	then
	218	read -p "SMTP user name? [$smtp_user_name]: " new_value
	219	if [ ! -z $new_value ]
	220	then
	221	smtp_user_name=$new_value
	222	fi
	223	fi
	224
	225	read -p "SMTP password? [$smtp_password]: " new_value
	226	if [ ! -z $new_value ]
	227	then
	228	smtp_password=$new_value
229	fi
230
231	if [ ! -z $letsencrypt_account_email ]
232	then
233	read -p "Let's Encrypt account email? ($letsencrypt_status) [$letsencrypt_account_email]: " new_value
234	if [ ! -z $new_value ]
235	then
236	letsencrypt_account_email=$new_value
237	if [ "$new_value" == "off" ]
238	then
239	letsencrypt_status="ENTER to skip"
240	else
241	letsencrypt_status="Enter 'OFF' to disable."
242	fi
243	fi
244	fi
245
51890305	246	echo -e "\nDoes this look right?\n"
c2d3ee4a JA	247	echo "Hostname : $hostname"
	248	echo "Email : $developer_emails"
	249	echo "SMTP address : $smtp_address"
	250	echo "SMTP username : $smtp_user_name"
	251	echo "SMTP password : $smtp_password"
	252
	253	if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
	254	then
	255	echo "Let's Encrypt : $letsencrypt_account_email"
	256	fi
	257
	258	echo ""
d0576df0	259	read -p "ENTER to continue, 'n' to try again, or ^C to exit: " config_ok
c2d3ee4a JA	260	done
c2d3ee4a JA	261
013b5931	262	sed -i -e "s/^ DISCOURSE_HOSTNAME:.*/ DISCOURSE_HOSTNAME: $hostname/w $changelog" $config_file
c2d3ee4a JA	263	if [ -s $changelog ]
	264	then
	265	rm $changelog
	266	else
	267	echo "DISCOURSE_HOSTNAME change failed."
	268	update_ok="n"
	269	fi
	270
	271	sed -i -e "s/^ DISCOURSE_DEVELOPER_EMAILS:.*/ DISCOURSE_DEVELOPER_EMAILS: \'$developer_emails\'/w $changelog" $config_file
	272	if [ -s $changelog ]
	273	then
	274	rm $changelog
	275	else
	276	echo "DISCOURSE_DEVELOPER_EMAILS change failed."
	277	update_ok="n"
	278	fi
	279
013b5931	280	sed -i -e "s/^ DISCOURSE_SMTP_ADDRESS:.*/ DISCOURSE_SMTP_ADDRESS: $smtp_address/w $changelog" $config_file
c2d3ee4a JA	281	if [ -s $changelog ]
	282	then
	283	rm $changelog
	284	else
	285	echo "DISCOURSE_SMTP_ADDRESS change failed."
	286	update_ok="n"
	287	fi
	288
013b5931	289	sed -i -e "s/^ #DISCOURSE_SMTP_USER_NAME:.*/ DISCOURSE_SMTP_USER_NAME: $smtp_user_name/w $changelog" $config_file
c2d3ee4a JA	290	if [ -s $changelog ]
	291	then
	292	rm $changelog
	293	else
	294	echo "DISCOURSE_SMTP_USER_NAME change failed."
	295	update_ok="n"
	296	fi
	297
013b5931	298	sed -i -e "s/^ #DISCOURSE_SMTP_PASSWORD:.*/ DISCOURSE_SMTP_PASSWORD: $smtp_password/w $changelog" $config_file
c2d3ee4a JA	299	if [ -s $changelog ]
	300	then
	301	rm $changelog
	302	else
	303	echo "DISCOURSE_SMTP_PASSWORD change failed."
	304	update_ok="n"
	305	fi
	306
	307	if [ "$letsencrypt_status" != "ENTER to skip" ]
	308	then
642b870f	309	sed -i -e "s/^ #LETSENCRYPT_ACCOUNT_EMAIL:.*/ LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email/w $changelog" $config_file
c2d3ee4a JA	310	if [ -s $changelog ]
	311	then
	312	rm $changelog
	313	else
	314	echo "LETSENCRYPT_ACCOUNT_EMAIL change failed."
	315	update_ok="n"
	316	fi
	317	local src='^ #- "templates\/web.ssl.template.yml"'
	318	local dst=' \- "templates\/web.ssl.template.yml"'
	319	sed -i -e "s/$src/$dst/w $changelog" $config_file
	320	if [ -s $changelog ]
	321	then
642b870f	322	echo "web.ssl.template.yml enabled"
c2d3ee4a JA	323	else
	324	update_ok="n"
	325	echo "web.ssl.template.yml NOT ENABLED--was it on already?"
	326	fi
	327	local src='^ #- "templates\/web.letsencrypt.ssl.template.yml"'
	328	local dst=' - "templates\/web.letsencrypt.ssl.template.yml"'
	329
	330	sed -i -e "s/$src/$dst/w $changelog" $config_file
	331	if [ -s $changelog ]
	332	then
	333	echo "letsencrypt.ssl.template.yml enabled"
	334	else
	335	update_ok="n"
	336	echo "letsencrypt.ssl.template.yml NOT ENABLED -- was it on already?"
	337	fi
	338	fi
	339
	340	if [ "$update_ok" == "y" ]
	341	then
	342	echo -e "\nConfiguration file at $config_file updated successfully!\n"
	343	else
	344	echo -e "\nUnfortunately, there was an error changing $config_file\n"
	345	exit 1
	346	fi
	347	}
	348
	349	##
	350	## is our config file valid? Does it have the required fields set?
	351	##
4b1b25e3	352	validate_config() {
c2d3ee4a JA	353
	354	valid_config="y"
	355
	356	for x in DISCOURSE_SMTP_ADDRESS DISCOURSE_SMTP_USER_NAME DISCOURSE_SMTP_PASSWORD \
	357	DISCOURSE_DEVELOPER_EMAILS DISCOURSE_HOSTNAME
	358	do
	359	config_line=`grep "^ $x:" $config_file`
	360	local result=$?
	361	local default="example.com"
	362
	363	if (( result == 0 ))
	364	then
	365	if [[ $config_line = "$default" ]]
	366	then
	367	echo "$x left at incorrect default of example.com"
	368	valid_config="n"
	369	fi
	370	config_val=`echo $config_line \| awk '{print $2}'`
	371	if [ -z $config_val ]
	372	then
	373	echo "$x was left blank"
	374	valid_config="n"
	375	fi
	376	else
	377	echo "$x not present"
	378	valid_config="n"
	379	fi
	380	done
	381
	382	if [ "$valid_config" != "y" ]; then
	383	echo -e "\nSorry, these $config_file settings aren't valid -- can't continue!"
d8613c71 JA	384	echo "If you have unusual requirements, edit $config_file and then: "
d8613c71 JA	385	echo "./launcher bootstrap $app_name"
c2d3ee4a JA	386	exit 1
	387	fi
	388	}
	389
	390
	391	##
	392	## template file names
	393	##
	394	app_name=app
	395	template_path=samples/standalone.yml
	396	config_file=containers/$app_name.yml
	397	changelog=/tmp/changelog
	398
4b1b25e3 JA	399	##
	400	## Check requirements before creating a copy of a config file we won't edit
	401	##
ebdd72f3	402	check_root
642b870f JP	403	check_disk_and_memory
	404	check_ports
	405
4b1b25e3	406	##
c2d3ee4a	407	## make a copy of the simple standalone config file
4b1b25e3	408	##
c2d3ee4a JA	409	if [ -a $config_file ]
	410	then
	411	echo "The configuration file $config_file already exists!"
	412	echo ""
	413	echo "If you want to delete your old configuration file and start over:"
	414	echo "rm $config_file"
	415	exit 1
	416	else
	417	cp $template_path $config_file
	418	fi
	419
c2d3ee4a	420	scale_ram_and_cpu
4b1b25e3 JA	421	ask_user_for_config
4b1b25e3 JA	422	validate_config
c2d3ee4a	423
4b1b25e3 JA	424	##
	425	## if we reach this point without exiting, OK to proceed
	426	##
02fd0d94	427	./launcher bootstrap $app_name && ./launcher start $app_name