[discourse_docker.git] / discourse-setup

#!/bin/bash

##
## Do we have enough memory and disk space for Discourse?
##
check_disk_and_memory() {
  
  resources="ok"
  avail_mem="$(LANG=C free -m | grep '^Mem:' | awk '{print $2}')"
  if [ "$avail_mem" -lt 900 ]; then
    resources="insufficient"
    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."
  elif [ "$avail_mem" -lt 1800 ]; then
    total_swap="$(LANG=C free -m | grep ^Swap: | awk '{print $2}')"
    if [ "$total_swap" -lt 1000 ]; then
      resources="insufficient"
      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, or future"
      echo "upgrades of Discourse may not complete successfully."
      echo
      echo "See https://meta.discourse.org/t/13880"
    fi
  fi

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