Upgrade Failed... line 115 column 9 -e LANG=en_US.UTF-8

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The discussion revolves around a failed Discourse upgrade due to a YAML parsing error at line 115 column 9. varun21 provided their app.yml file, which they had not edited since the last upgrade. pfaffman suggested that the issue might be caused by inconsistent indentation in the replace stanza. varun21 attempted to resolve the issue by removing comments from the file using a regex search and replace, which seemed to work initially.

1

Today discourse prompted for updates. When I did, it said do the following:

cd /var/discourse
git pull
./launcher rebuild app

And then threw:
(<unknown>): did not find expected key while parsing a block mapping at line 115 column 9 -e LANG=en_US.UTF-8
Here’s my app.yml

## this is the all-in-one, standalone Discourse Docker container template

##

## After making changes to this file, you MUST rebuild

## /var/discourse/launcher rebuild app

##

## BE *VERY* CAREFUL WHEN EDITING!

## YAML FILES ARE SUPER SUPER SENSITIVE TO MISTAKES IN WHITESPACE OR ALIGNMENT!

## visit http://www.yamllint.com/ to validate this file as needed

templates:

  - "templates/postgres.template.yml"

  - "templates/redis.template.yml"

  - "templates/web.template.yml"

  - "templates/web.ratelimited.template.yml"

  - "templates/web.socketed.template.yml"

## Uncomment these two lines if you wish to add Lets Encrypt (https)

#  - "templates/web.ssl.template.yml"

#  - "templates/web.letsencrypt.ssl.template.yml"

## which TCP/IP ports should this container expose?

## If you want Discourse to share a port with another webserver like Apache or nginx,

## see https://meta.discourse.org/t/17247 for details

#expose:

#  - "8888:80"   # http

#  - "443:443" # https

params:

  db_default_text_search_config: "pg_catalog.english"

  ## Set db_shared_buffers to a max of 25% of the total memory.

  ## will be set automatically by bootstrap based on detected RAM, or you can override

  db_shared_buffers: "1024MB"

  ## can improve sorting performance, but adds memory usage per-connection

  #db_work_mem: "40MB"

  ## Which Git revision should this container use? (default: tests-passed)

  #version: tests-passed

env:

  LC_ALL: en_US.UTF-8

  LANG: en_US.UTF-8

  LANGUAGE: en_US.UTF-8

  # DISCOURSE_DEFAULT_LOCALE: en

  ## 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: domain.com

  DISCOURSE_RELATIVE_URL_ROOT: /forums

  ## 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: 'hello@domain.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.gmail.com

  DISCOURSE_SMTP_PORT: 587

  DISCOURSE_SMTP_USER_NAME: hello@domain.com

  DISCOURSE_SMTP_PASSWORD: "password"

  #DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optional, default true)

  DISCOURSE_SMTP_DOMAIN: domain.com

  DISCOURSE_NOTIFICATION_EMAIL: hello@domain.com

  ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate

  LETSENCRYPT_ACCOUNT_EMAIL: hello@domain.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: 1234567890123456

## 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

## Plugins go here

## see https://meta.discourse.org/t/19157 for details

hooks:

  after_code:

    - exec:

        cd: $home/plugins

        cmd:

          - git clone https://github.com/discourse/docker_manager.git

          - git clone https://github.com/cfstras/discourse-konami.git

          #- git clone https://github.com/discourse/discourse-adplugin.git

          - git clone https://github.com/discourse/discourse-cakeday.git

          #- git clone https://github.com/discourse/discourse-docs.git

          - git clone https://github.com/discourse/discourse-sitemap.git

          - git clone https://github.com/discourse/discourse-solved.git

          #- git clone https://github.com/discourse/discourse-tooltips.git

          - git clone https://github.com/discourse/discourse-yearly-review.git

          - git clone https://github.com/merefield/discourse-word-cloud.git

## Any custom commands to run after building

run:

    - exec: echo "Beginning of custom commands"

    - exec:

        cd: $home

        cmd:

          echo entering $home

          - mkdir -p public/forums

          #- cd public/forums

          - ln -s ../uploads

          - ln -s ../backups

          #- rm public/uploads

          #- rm public/backups

    - replace:

       global: true

       filename: /etc/nginx/conf.d/discourse.conf

       from: proxy_pass http://discourse;

       to: |

          rewrite ^/(.*)$ /forums/$1 break;

          proxy_pass http://discourse;

    - replace:

       filename: /etc/nginx/conf.d/discourse.conf

       from: etag off;

       to: |

          etag off;

          location /forums {

             rewrite ^/forums/?(.*)$ /$1;

          }

    - replace:

         filename: /etc/nginx/conf.d/discourse.conf

         from: $proxy_add_x_forwarded_for

         to: $http_your_original_ip_header

         global: true

    - exec: awk -F\# '{print $1;}' ~/.ssh/authorized_keys | awk 'BEGIN { print "Authorized SSH keys for this container:"; } NF>=2 {print $NF;}'

    - exec: echo "End of custom commands"
2

I think it’s the replace stanza at the end. It’s indentation is different from the one above.

Have you edited this since the last upgrade?

3

I didn’t touch it but it had been an hour so I posted. Even yamllint.com would complaint.

Then I did a regex search and replace to remove all comments and somehow it worked. It’s compiling as I write this. Fingers crossed. If this botches up then I’ll sadly have to give up.

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