[discourse_docker.git] / discourse-setup

#!/bin/bash

##
## 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 "Press ENTER to create a 2GB swapfile automatically, 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
      sudo 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 "Press 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!"
    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_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 $app_name
Commit	Line	Data
c2d3ee4a JA	1	#!/bin/bash
	2
	3	##
	4	## Do we have enough memory and disk space for Discourse?
	5	##
	6	check_disk_and_memory() {
	7
c2d3ee4a JA	8	avail_mem="$(LANG=C free -m \| grep '^Mem:' \| awk '{print $2}')"
c2d3ee4a JA	9	if [ "$avail_mem" -lt 900 ]; then
51890305 JA	10	echo "WARNING: Discourse requires 1GB RAM to run. This system does not appear"
51890305 JA	11	echo "to have sufficient memory."
c2d3ee4a	12	echo
51890305 JA	13	echo "Your site may not work properly, or future upgrades of Discourse may not"
51890305 JA	14	echo "complete successfully."
cdd99376 JA	15	exit 1
	16	fi
	17
	18	if [ "$avail_mem" -lt 1800 ]; then
c2d3ee4a JA	19	total_swap="$(LANG=C free -m \| grep ^Swap: \| awk '{print $2}')"
c2d3ee4a JA	20	if [ "$total_swap" -lt 1000 ]; then
51890305 JA	21	echo "WARNING: Discourse requires at least 1GB of swap when running with less "
51890305 JA	22	echo "than 2GB of RAM. This system does not appear to have sufficient swap space."
c2d3ee4a	23	echo
8f70d450	24	echo "Without sufficient swap space, your site may not work properly, and future"
51890305	25	echo "upgrades of Discourse may not complete successfully."
c2d3ee4a	26	echo
8f70d450 JA	27	read -p "Press ENTER to create a 2GB swapfile automatically, or Ctrl-C to exit"
	28
	29	##
	30	## derived from https://meta.discourse.org/t/13880
	31	##
	32	install -o root -g root -m 0600 /dev/null /swapfile
	33	dd if=/dev/zero of=/swapfile bs=1k count=2048k
	34	mkswap /swapfile
	35	swapon /swapfile
	36	echo "/swapfile swap swap auto 0 0" \| sudo tee -a /etc/fstab
	37	sudo sysctl -w vm.swappiness=10
	38	echo vm.swappiness = 10 \| sudo tee -a /etc/sysctl.conf
	39
	40	total_swap="$(LANG=C free -m \| grep ^Swap: \| awk '{print $2}')"
	41	if [ "$total_swap" -lt 1000 ]; then
	42	echo "Failed to create swap, sorry!"
	43	exit 1
	44	fi
	45
c2d3ee4a JA	46	fi
	47	fi
	48
	49	free_disk="$(df /var \| tail -n 1 \| awk '{print $4}')"
	50	if [ "$free_disk" -lt 5000 ]; then
51890305 JA	51	echo "WARNING: Discourse requires at least 5GB free disk space. This system"
51890305 JA	52	echo "does not appear to have sufficient disk space."
c2d3ee4a	53	echo
51890305 JA	54	echo "Insufficient disk space may result in problems running your site, and"
51890305 JA	55	echo "may not even allow Discourse installation to complete successfully."
c2d3ee4a JA	56	echo
	57	echo "Please free up some space, or expand your disk, before continuing."
	58	echo
51890305 JA	59	echo "Run \`apt-get autoremove && apt-get autoclean\` to clean up unused"
51890305 JA	60	echo "packages and \`./launcher cleanup\` to remove stale Docker containers."
c2d3ee4a JA	61	exit 1
	62	fi
	63
c2d3ee4a JA	64	}
	65
	66
	67	##
	68	## If we have lots of RAM or lots of CPUs, bump up the defaults to scale better
	69	##
	70	scale_ram_and_cpu() {
	71
642b870f	72	local changelog=/tmp/changelog.$PPID
c2d3ee4a JA	73	# grab info about total system ram and physical (NOT LOGICAL!) CPU cores
	74	avail_mem="$(LANG=C free -m \| grep '^Mem:' \| awk '{print $2}')"
	75	avail_gb=$(( $avail_mem / 950 ))
	76	avail_cores=`cat /proc/cpuinfo \| grep "cpu cores" \| uniq \| awk '{print $4}'`
	77	echo "Found ${avail_gb}GB of memory and $avail_cores physical CPU cores"
	78
	79	# db_shared_buffers: 128MB for 1GB, 256MB for 2GB, or 256MB * GB, max 4096MB
	80	if [ "$avail_gb" -eq "1" ]
	81	then
	82	db_shared_buffers=128
	83	else
	84	if [ "$avail_gb" -eq "2" ]
	85	then
	86	db_shared_buffers=256
	87	else
	88	db_shared_buffers=$(( 256 * $avail_gb ))
	89	fi
	90	fi
	91	db_shared_buffers=$(( db_shared_buffers < 4096 ? db_shared_buffers : 4096 ))
	92
	93	sed -i -e "s/^ #db_shared_buffers:.*/ db_shared_buffers: \"${db_shared_buffers}MB\"/w $changelog" $config_file
	94	if [ -s $changelog ]
	95	then
	96	echo "setting db_shared_buffers = ${db_shared_buffers}MB"
	97	rm $changelog
	98	fi
	99
c2d3ee4a JA	100	# UNICORN_WORKERS: 2 * GB for 2GB or less, or 2 * CPU, max 8
	101	if [ "$avail_gb" -le "2" ]
	102	then
	103	unicorn_workers=$(( 2 * $avail_gb ))
	104	else
	105	unicorn_workers=$(( 2 * $avail_cores ))
	106	fi
	107	unicorn_workers=$(( unicorn_workers < 8 ? unicorn_workers : 8 ))
	108
	109	sed -i -e "s/^ #UNICORN_WORKERS:.*/ UNICORN_WORKERS: ${unicorn_workers}/w $changelog" $config_file
	110	if [ -s $changelog ]
	111	then
	112	echo "setting UNICORN_WORKERS = ${unicorn_workers}"
	113	rm $changelog
	114	fi
	115
	116	}
	117
	118
	119	##
	120	## standard http / https ports must not be occupied
	121	##
	122	check_ports() {
	123	check_port "80"
	124	check_port "443"
	125	echo "Ports 80 and 443 are free for use"
	126	}
	127
	128
	129	##
	130	## check a port to see if it is already in use
	131	##
	132	check_port() {
	133
	134	local valid=$(netstat -tln \| awk '{print $4}' \| grep ":${1}\$")
	135
	136	if [ -n "$valid" ]; then
	137	echo "Port ${1} appears to already be in use."
	138	echo
51890305 JA	139	echo "If you are trying to run Discourse simultaneously with another web"
	140	echo "server like Apache or nginx, you will need to bind to a different port"
	141	echo
	142	echo "See https://meta.discourse.org/t/17247"
c2d3ee4a JA	143	exit 1
	144	fi
	145	}
	146
	147	##
	148	## prompt user for typical Discourse config file values
	149	##
4b1b25e3	150	ask_user_for_config() {
c2d3ee4a	151
642b870f	152	local changelog=/tmp/changelog.$PPID
c2d3ee4a	153	local hostname="discourse.example.com"
642b870f	154	local developer_emails="me@example.com,you@example.com"
c2d3ee4a JA	155	local smtp_address="smtp.example.com"
	156	local smtp_user_name="postmaster@discourse.example.com"
	157	local smtp_password=""
	158	local letsencrypt_account_email="me@example.com"
	159	local letsencrypt_status="ENTER to skip"
	160
	161	local new_value=""
	162	local config_ok="n"
	163	local update_ok="y"
	164
	165	echo ""
	166
	167	while [[ "$config_ok" == "n" ]]
	168	do
	169	if [ ! -z $hostname ]
	170	then
	171	read -p "Hostname for your Discourse? [$hostname]: " new_value
	172	if [ ! -z $new_value ]
	173	then
	174	hostname=$new_value
	175	fi
	176	fi
	177
	178	if [ ! -z $developer_emails ]
	179	then
	180	read -p "Email address for admin account? [$developer_emails]: " new_value
	181	if [ ! -z $new_value ]
	182	then
	183	developer_emails=$new_value
	184	fi
	185	fi
	186
	187	if [ ! -z $smtp_address ]
	188	then
	189	read -p "SMTP server address? [$smtp_address]: " new_value
	190	if [ ! -z $new_value ]
	191	then
	192	smtp_address=$new_value
	193	fi
	194	fi
	195
	196	if [ "$smtp_address" == "smtp.sparkpostmail.com" ]
	197	then
	198	smtp_user_name="SMTP_Injection"
	199	fi
	200
	201	if [ "$smtp_address" == "smtp.sendgrid.net" ]
	202	then
	203	smtp_user_name="apikey"
	204	fi
	205
	206	if [ ! -z $smtp_user_name ]
	207	then
	208	read -p "SMTP user name? [$smtp_user_name]: " new_value
	209	if [ ! -z $new_value ]
	210	then
	211	smtp_user_name=$new_value
	212	fi
	213	fi
	214
	215	read -p "SMTP password? [$smtp_password]: " new_value
	216	if [ ! -z $new_value ]
	217	then
	218	smtp_password=$new_value
219	fi
220
221	if [ ! -z $letsencrypt_account_email ]
222	then
223	read -p "Let's Encrypt account email? ($letsencrypt_status) [$letsencrypt_account_email]: " new_value
224	if [ ! -z $new_value ]
225	then
226	letsencrypt_account_email=$new_value
227	if [ "$new_value" == "off" ]
228	then
229	letsencrypt_status="ENTER to skip"
230	else
231	letsencrypt_status="Enter 'OFF' to disable."
232	fi
233	fi
234	fi
235
51890305	236	echo -e "\nDoes this look right?\n"
c2d3ee4a JA	237	echo "Hostname : $hostname"
	238	echo "Email : $developer_emails"
	239	echo "SMTP address : $smtp_address"
	240	echo "SMTP username : $smtp_user_name"
	241	echo "SMTP password : $smtp_password"
	242
	243	if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
	244	then
	245	echo "Let's Encrypt : $letsencrypt_account_email"
	246	fi
	247
	248	echo ""
	249	read -p "Press ENTER to continue, 'n' to try again, or ^C to exit: " config_ok
	250	done
	251
013b5931	252	sed -i -e "s/^ DISCOURSE_HOSTNAME:.*/ DISCOURSE_HOSTNAME: $hostname/w $changelog" $config_file
c2d3ee4a JA	253	if [ -s $changelog ]
	254	then
	255	rm $changelog
	256	else
	257	echo "DISCOURSE_HOSTNAME change failed."
	258	update_ok="n"
	259	fi
	260
	261	sed -i -e "s/^ DISCOURSE_DEVELOPER_EMAILS:.*/ DISCOURSE_DEVELOPER_EMAILS: \'$developer_emails\'/w $changelog" $config_file
	262	if [ -s $changelog ]
	263	then
	264	rm $changelog
	265	else
	266	echo "DISCOURSE_DEVELOPER_EMAILS change failed."
	267	update_ok="n"
	268	fi
	269
013b5931	270	sed -i -e "s/^ DISCOURSE_SMTP_ADDRESS:.*/ DISCOURSE_SMTP_ADDRESS: $smtp_address/w $changelog" $config_file
c2d3ee4a JA	271	if [ -s $changelog ]
	272	then
	273	rm $changelog
	274	else
	275	echo "DISCOURSE_SMTP_ADDRESS change failed."
	276	update_ok="n"
	277	fi
	278
013b5931	279	sed -i -e "s/^ #DISCOURSE_SMTP_USER_NAME:.*/ DISCOURSE_SMTP_USER_NAME: $smtp_user_name/w $changelog" $config_file
c2d3ee4a JA	280	if [ -s $changelog ]
	281	then
	282	rm $changelog
	283	else
	284	echo "DISCOURSE_SMTP_USER_NAME change failed."
	285	update_ok="n"
	286	fi
	287
013b5931	288	sed -i -e "s/^ #DISCOURSE_SMTP_PASSWORD:.*/ DISCOURSE_SMTP_PASSWORD: $smtp_password/w $changelog" $config_file
c2d3ee4a JA	289	if [ -s $changelog ]
	290	then
	291	rm $changelog
	292	else
	293	echo "DISCOURSE_SMTP_PASSWORD change failed."
	294	update_ok="n"
	295	fi
	296
	297	if [ "$letsencrypt_status" != "ENTER to skip" ]
	298	then
642b870f	299	sed -i -e "s/^ #LETSENCRYPT_ACCOUNT_EMAIL:.*/ LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email/w $changelog" $config_file
c2d3ee4a JA	300	if [ -s $changelog ]
	301	then
	302	rm $changelog
	303	else
	304	echo "LETSENCRYPT_ACCOUNT_EMAIL change failed."
	305	update_ok="n"
	306	fi
	307	local src='^ #- "templates\/web.ssl.template.yml"'
	308	local dst=' \- "templates\/web.ssl.template.yml"'
	309	sed -i -e "s/$src/$dst/w $changelog" $config_file
	310	if [ -s $changelog ]
	311	then
642b870f	312	echo "web.ssl.template.yml enabled"
c2d3ee4a JA	313	else
	314	update_ok="n"
	315	echo "web.ssl.template.yml NOT ENABLED--was it on already?"
	316	fi
	317	local src='^ #- "templates\/web.letsencrypt.ssl.template.yml"'
	318	local dst=' - "templates\/web.letsencrypt.ssl.template.yml"'
	319
	320	sed -i -e "s/$src/$dst/w $changelog" $config_file
	321	if [ -s $changelog ]
	322	then
	323	echo "letsencrypt.ssl.template.yml enabled"
	324	else
	325	update_ok="n"
	326	echo "letsencrypt.ssl.template.yml NOT ENABLED -- was it on already?"
	327	fi
	328	fi
	329
	330	if [ "$update_ok" == "y" ]
	331	then
	332	echo -e "\nConfiguration file at $config_file updated successfully!\n"
	333	else
	334	echo -e "\nUnfortunately, there was an error changing $config_file\n"
	335	exit 1
	336	fi
	337	}
	338
	339	##
	340	## is our config file valid? Does it have the required fields set?
	341	##
4b1b25e3	342	validate_config() {
c2d3ee4a JA	343
	344	valid_config="y"
	345
	346	for x in DISCOURSE_SMTP_ADDRESS DISCOURSE_SMTP_USER_NAME DISCOURSE_SMTP_PASSWORD \
	347	DISCOURSE_DEVELOPER_EMAILS DISCOURSE_HOSTNAME
	348	do
	349	config_line=`grep "^ $x:" $config_file`
	350	local result=$?
	351	local default="example.com"
	352
	353	if (( result == 0 ))
	354	then
	355	if [[ $config_line = "$default" ]]
	356	then
	357	echo "$x left at incorrect default of example.com"
	358	valid_config="n"
	359	fi
	360	config_val=`echo $config_line \| awk '{print $2}'`
	361	if [ -z $config_val ]
	362	then
	363	echo "$x was left blank"
	364	valid_config="n"
	365	fi
	366	else
	367	echo "$x not present"
	368	valid_config="n"
	369	fi
	370	done
	371
	372	if [ "$valid_config" != "y" ]; then
	373	echo -e "\nSorry, these $config_file settings aren't valid -- can't continue!"
	374	exit 1
	375	fi
	376	}
	377
	378
	379	##
	380	## template file names
	381	##
	382	app_name=app
	383	template_path=samples/standalone.yml
	384	config_file=containers/$app_name.yml
	385	changelog=/tmp/changelog
	386
4b1b25e3 JA	387	##
	388	## Check requirements before creating a copy of a config file we won't edit
	389	##
642b870f JP	390	check_disk_and_memory
	391	check_ports
	392
4b1b25e3	393	##
c2d3ee4a	394	## make a copy of the simple standalone config file
4b1b25e3	395	##
c2d3ee4a JA	396	if [ -a $config_file ]
	397	then
	398	echo "The configuration file $config_file already exists!"
	399	echo ""
	400	echo "If you want to delete your old configuration file and start over:"
	401	echo "rm $config_file"
	402	exit 1
	403	else
	404	cp $template_path $config_file
	405	fi
	406
c2d3ee4a	407	scale_ram_and_cpu
4b1b25e3 JA	408	ask_user_for_config
4b1b25e3 JA	409	validate_config
c2d3ee4a	410
4b1b25e3 JA	411	##
	412	## if we reach this point without exiting, OK to proceed
	413	##
c2d3ee4a	414	./launcher bootstrap $app_name
8f70d450	415	./launcher start $app_name