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