Not my first discourse installation, but I’ve managed to get stumped after three attempts doing a standard installation on a Digital Ocean droplet (1GB NVMe SSD Premium AMD) using Ubuntu 22.04 LTS. I went through the guide and provided an email for LetsEncrypt as I have done many times before in the past. After the Discourse installation didn’t show up in the browser (either via the A record or the direct IP of the droplet), I then confirmed that the installation refuses connections on both http and https ports and have been hitting my head ever since.
The only odd thing I noticed during install is that Docker wasn’t installed by default on the digital ocean droplet and prompted me to install it after detecting that the git clone of the Discourse container required it. Other than that, I proceeded as normal and tested both Docker and the Discourse installation.
Good news - Discourse successfully executes the email deliverability test, which implies that the installation is there and running, and Docker seems to be working fine (after running “docker run -it --rm hello-world”). I also pinged github.com and do get responses, so it doesn’t appear to be a firewall or connectivity issue.
Problem: connections refused
However, running “curl -v localhost:8080” returns:
* Trying 127.0.0.1:8080...
* connect to 127.0.0.1 port 8080 failed: Connection refused
* Trying ::1:8080...
* connect to ::1 port 8080 failed: Connection refused
* Failed to connect to localhost port 8080 after 1 ms: Connection refused
* Closing connection 0
curl -v localhost returns:
* Trying 127.0.0.1:80...
* Connected to localhost (127.0.0.1) port 80 (#0)
> GET / HTTP/1.1
> Host: localhost
> User-Agent: curl/7.81.0
> Accept: */*
>
* Empty reply from server
* Closing connection 0
curl: (52) Empty reply from server
Here is my app.yml and the results from running discourse-doctor:
app.yml
## How many concurrent web requests are supported? Depends on memory and CPU cores.
## will be set automatically by bootstrap based on detected CPUs, or you can override
UNICORN_WORKERS: 2
## TODO: The domain name this Discourse instance will respond to
## Required. Discourse will not work with a bare IP number.
DISCOURSE_HOSTNAME: community.example.io
## Uncomment if you want the container to be started with the same
## hostname (-h option) as specified above (default "$hostname-$config")
#DOCKER_USE_HOSTNAME: true
## TODO: List of comma delimited emails that will be made admin and developer
## on initial signup example 'user1@example.com,user2@example.com'
DISCOURSE_DEVELOPER_EMAILS: 'example@example.com'
## TODO: The SMTP mail server used to validate new accounts and send notifications
# SMTP ADDRESS, username, and password are required
# WARNING the char '#' in SMTP password can cause problems!
DISCOURSE_SMTP_ADDRESS: smtp.mailgun.org
DISCOURSE_SMTP_PORT: 587
DISCOURSE_SMTP_USER_NAME: no-reply@example.io
DISCOURSE_SMTP_PASSWORD: "XXXXXX"
#DISCOURSE_SMTP_ENABLE_START_TLS: true # (optional, default true)
DISCOURSE_SMTP_DOMAIN: community.example.io
DISCOURSE_NOTIFICATION_EMAIL: noreply@community.example.io
## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
LETSENCRYPT_ACCOUNT_EMAIL: example@example.com
## The http or https CDN address for this Discourse instance (configured to pull)
## see https://meta.discourse.org/t/14857 for details
#DISCOURSE_CDN_URL: https://discourse-cdn.example.com
## The maxmind geolocation IP address key for IP address lookup
## see https://meta.discourse.org/t/-/137387/23 for details
DISCOURSE_MAXMIND_LICENSE_KEY: XXXXX
## The Docker container is stateless; all data is stored in /shared
volumes:
- volume:
host: /var/discourse/shared/standalone
guest: /shared
- volume:
## TODO: The domain name this Discourse instance will respond to
## Required. Discourse will not work with a bare IP number.
DISCOURSE_HOSTNAME: community.example.io
## Uncomment if you want the container to be started with the same
## hostname (-h option) as specified above (default "$hostname-$config")
#DOCKER_USE_HOSTNAME: true
## TODO: List of comma delimited emails that will be made admin and developer
## on initial signup example 'user1@example.com,user2@example.com'
DISCOURSE_DEVELOPER_EMAILS: 'example@example.com'
## TODO: The SMTP mail server used to validate new accounts and send notifications
# SMTP ADDRESS, username, and password are required
# WARNING the char '#' in SMTP password can cause problems!
DISCOURSE_SMTP_ADDRESS: smtp.mailgun.org
DISCOURSE_SMTP_PORT: 587
DISCOURSE_SMTP_USER_NAME: no-reply@example.io
DISCOURSE_SMTP_PASSWORD: "XXXXXXXX"
#DISCOURSE_SMTP_ENABLE_START_TLS: true # (optional, default true)
DISCOURSE_SMTP_DOMAIN: community.example.io
DISCOURSE_NOTIFICATION_EMAIL: noreply@community.example.io
## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
LETSENCRYPT_ACCOUNT_EMAIL: example@example.com
## The http or https CDN address for this Discourse instance (configured to pull)
## see https://meta.discourse.org/t/14857 for details
#DISCOURSE_CDN_URL: https://discourse-cdn.example.com
## The maxmind geolocation IP address key for IP address lookup
## see https://meta.discourse.org/t/-/137387/23 for details
DISCOURSE_MAXMIND_LICENSE_KEY: XXXXXX
## The Docker container is stateless; all data is stored in /shared
volumes:
- volume:
host: /var/discourse/shared/standalone
guest: /shared
- volume:
host: /var/discourse/shared/standalone/log/var-log
guest: /var/log
discourse-doctor results
Found containers/app.yml
==================== YML SETTINGS ====================
DISCOURSE_HOSTNAME=community.example.io
SMTP_ADDRESS=smtp.mailgun.org
DEVELOPER_EMAILS=example@example.com
SMTP_PASSWORD=XXXXXXXX
SMTP_PORT=587
SMTP_USER_NAME=no-reply@example.io
LETSENCRYPT_ACCOUNT_EMAIL=example@example.com
==================== DOCKER INFO ====================
DOCKER VERSION: Docker version 20.10.21, build baeda1f
DOCKER PROCESSES (docker ps -a)
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e1d88ff15b5b local_discourse/app "/sbin/boot" 18 minutes ago Up 18 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:443->443/tcp, :::443->443/tcp app
e1d88ff15b5b local_discourse/app "/sbin/boot" 18 minutes ago Up 18 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:443->443/tcp, :::443->443/tcp app
Discourse container app is running
==================== PLUGINS ====================
- git clone https://github.com/discourse/docker_manager.git
No non-official plugins detected.
See https://github.com/discourse/discourse/blob/main/lib/plugin/metadata.rb for the official list.
========================================
Discourse version at community.example.io: NOT FOUND
Discourse version at localhost: NOT FOUND
==================== MEMORY INFORMATION ====================
RAM (MB): 1016
total used free shared buff/cache available
Mem: 969 687 61 21 220 110
Swap: 2047 241 1806
==================== DISK SPACE CHECK ====================
---------- OS Disk Space ----------
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 25G 8.2G 16G 34% /
==================== DISK INFORMATION ====================
Disk /dev/loop0: 63.22 MiB, 66293760 bytes, 129480 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop1: 102.98 MiB, 107986944 bytes, 210912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop2: 47.98 MiB, 50315264 bytes, 98272 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/vda: 25 GiB, 26843545600 bytes, 52428800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 728BDF97-580D-4B6F-9462-7E2540D5378B
Device Start End Sectors Size Type
/dev/vda1 227328 52428766 52201439 24.9G Linux filesystem
/dev/vda14 2048 10239 8192 4M BIOS boot
/dev/vda15 10240 227327 217088 106M EFI System
Partition table entries are not in disk order.
Disk /dev/vdb: 466 KiB, 477184 bytes, 932 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
==================== END DISK INFORMATION ====================
==================== MAIL TEST ====================
For a robust test, get an address from http://www.mail-tester.com/
Or just send a test message to yourself.
Email address for mail test? ('n' to skip) [example@example.com ]:
Sending mail to example@example.com . . .
Testing sending to example@example.com using smtp.mailgun.org:587, username:no-reply@example.io with plain auth.
SMTP server connection successful.
Sending to example@example.com. . .
Mail accepted by SMTP server.
Message-ID: e3455d15-eb48-48bf-9859-a30f1acc765c@community.example.io
If you do not receive the message, check your SPAM folder
or test again using a service like http://www.mail-tester.com/.
If the message is not delivered it is not a problem with Discourse.
Check the SMTP server logs for the above Message ID to see why it
failed to deliver the message.
Replacing: SMTP_PASSWORD
Replacing: LETSENCRYPT_ACCOUNT_EMAIL
Replacing: DEVELOPER_EMAILS
Replacing: DISCOURSE_DB_PASSWORD
Replacing: Sending mail to
==================== DONE! ====================
I also ran ./launcher enter app in the discourse directory + the top command to verify that nginx, redis, postmaster and ruby are all running. I don’t see nginx in the list…
launcher enter app --> top results
Tasks: 31 total, 1 running, 30 sleeping, 0 stopped, 0 zombie
%Cpu(s): 1.3 us, 2.3 sy, 0.0 ni, 96.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.3 st
MiB Mem : 969.4 total, 72.4 free, 659.0 used, 238.0 buff/cache
MiB Swap: 2048.0 total, 1667.2 free, 380.8 used. 141.1 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4528 discour+ 25 5 951480 289404 3096 S 0.3 29.2 4:21.14 ruby
1 root 20 0 6772 0 0 S 0.0 0.0 0:00.02 boot
4428 root 20 0 2340 24 0 S 0.0 0.0 0:01.14 runsvdir
4429 root 20 0 2188 0 0 S 0.0 0.0 0:00.00 runsv
4430 root 20 0 2188 0 0 S 0.0 0.0 0:00.00 runsv
4431 root 20 0 2188 0 0 S 0.0 0.0 0:00.00 runsv
4432 root 20 0 2188 0 0 S 0.0 0.0 0:00.00 runsv
4433 root 20 0 2188 280 256 S 0.0 0.0 1:28.21 runsv
4434 root 20 0 2188 0 0 S 0.0 0.0 0:00.00 runsv
4435 root 20 0 2336 0 0 S 0.0 0.0 0:00.05 svlogd
4436 redis 20 0 58072 2900 1624 S 0.0 0.3 3:17.52 redis-server
4438 root 20 0 2336 0 0 S 0.0 0.0 0:00.00 svlogd
4439 discour+ 20 0 15256 1128 912 S 0.0 0.1 0:25.85 unicorn_launche
4441 root 20 0 6620 488 384 S 0.0 0.0 0:00.21 cron
4442 postgres 20 0 213172 5220 4776 S 0.0 0.5 0:02.75 postmaster
4445 root 20 0 151068 132 0 S 0.0 0.0 0:00.06 rsyslogd
4458 postgres 20 0 213392 10404 9896 S 0.0 1.0 0:00.78 postmaster
4459 postgres 20 0 213172 5004 4604 S 0.0 0.5 0:01.50 postmaster
4460 postgres 20 0 213172 4956 4588 S 0.0 0.5 0:27.50 postmaster
4461 postgres 20 0 213840 2264 1652 S 0.0 0.2 0:01.98 postmaster
4462 postgres 20 0 68200 788 0 S 0.0 0.1 0:05.01 postmaster
4463 postgres 20 0 213724 1164 700 S 0.0 0.1 0:00.05 postmaster
4464 discour+ 20 0 457692 171868 1364 S 0.0 17.3 0:22.71 ruby
4503 postgres 20 0 220116 11116 10812 S 0.0 1.1 0:01.51 postmaster
4538 discour+ 20 0 768724 169816 1032 S 0.0 17.1 0:08.27 ruby
4549 discour+ 20 0 768724 169948 1220 S 0.0 17.1 0:08.55 ruby
4580 postgres 20 0 219408 10580 10460 S 0.0 1.1 0:00.13 postmaster
134464 postgres 20 0 217332 21388 17444 S 0.0 2.2 0:00.24 postmaster
137350 root 20 0 7036 3468 2972 S 0.0 0.3 0:00.02 bash
137382 root 20 0 10108 3756 3080 R 0.0 0.4 0:00.08 top
137609 discour+ 20 0 13760 2004 1732 S 0.0 0.2 0:00.00 sleep
Took a look at error.log inside of var/discourse/shared/standalone/log/var-log/nginx:
2022/12/12 07:55:26 [emerg] 5040#5040: cannot load certificate "/shared/ssl/community.example.io.cer": PEM_read_bio_X509_AUX(>
2022/12/12 07:55:27 [emerg] 5042#5042: cannot load certificate "/shared/ssl/community.example.io.cer": PEM_read_bio_X509_AUX(>
2022/12/12 07:55:28 [emerg] 5044#5044: cannot load certificate "/shared/ssl/community.example.io.cer": PEM_read_bio_X509_AUX(>
2022/12/12 07:55:29 [emerg] 5046#5046: cannot load certificate "/shared/ssl/community.example.io.cer": PEM_read_bio_X509_AUX(>
....
