Issues during installation in Ubuntu

[lllilllilllilili]

Hello (VM : Ubuntu 16.04LTS)

I'd like to ask you a few questions.

About fluent-plugin-gcloud-pubsub-custom Installation Issues ( If I have any problems registering Issue, please let me know )

I was practicing the configuration of installing fluid on ubuntu and sending it to pubsub. (ruby using /.rvm/gems/ruby-2.5.8)

Write the instructions in accordance with the guidelines provided by github.

I ran

$ sudo /etc/init.d/td-agent start

Failed.

[....] Starting td-agent (via systemctl): td-agent.serviceJob for td-agent.service failed because the control process exited with error code. See "systemctl status td-agent.service" and "journalctl -xe" for details.
failed!

So I looked at the failure, and I couldn't check the plugin.

config error file="/etc/td-agent/td-agent.conf" error="Unknown output plugin 'gcloud_pubsub'. Run 'gem search -rd fluent-plugin'

/etc/td-agent/td-agent.conf

Page up
<source>
  @type tail
  path /var/log/nginx/access.log
  pos_file /var/log/td-agent/nginx-access.pos
  tag example.publish
  format nginx
</source>
#<match input.twitter>
#   @type stdout
#</match>
<match example.publish>
  type gcloud_pubsub
  project ...
  key ...
  topic projects...
  autocreate_topic false
  max_messages 1000
  max_total_size 9800000
  max_message_size 4000000
  timeout 60
  <buffer>
    @type memory
    flush_interval 1s
  </buffer>
  <format>
    @type json
  </format>
</match>

** project, topic, key는 ... I've done with the secret.

I checked if the plug-in was installed, but it wasn't either.

$ sudo td-agent-gem list | egrep "pubsub|google"

/var/log/td-agent/td-agent.log

2021-08-03 07:00:01 +0000 [info]: starting fluentd-0.12.40
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-mixin-plaintextformatter' version '0.2.6'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-kafka' version '0.6.1'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-mongo' version '0.8.1'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-rewrite-tag-filter' version '1.5.6'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-s3' version '0.8.5'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-scribe' version '0.10.14'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-td' version '0.10.29'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-td-monitoring' version '0.2.3'
2021-08-03 07:00:01 +0000 [info]: gem 'fluent-plugin-webhdfs' version '0.7.1'
2021-08-03 07:00:01 +0000 [info]: gem 'fluentd' version '0.12.40'
2021-08-03 07:00:01 +0000 [info]: adding match pattern="td.*.*" type="tdlog"
2021-08-03 07:00:01 +0000 [info]: adding match pattern="debug.**" type="stdout"
2021-08-03 07:00:01 +0000 [info]: adding source type="forward"
2021-08-03 07:00:01 +0000 [info]: adding source type="http"
2021-08-03 07:00:01 +0000 [info]: adding source type="debug_agent"
2021-08-03 07:00:01 +0000 [info]: using configuration file: <ROOT>
  <match td.*.*>
    @type tdlog
    apikey xxxxxx
    auto_create_table
    buffer_type file
    buffer_path /var/log/td-agent/buffer/td
    buffer_chunk_limit 33554432
    <secondary>
      @type file
      path /var/log/td-agent/failed_records
      buffer_path /var/log/td-agent/failed_records.*
    </secondary>
  </match>
  <match debug.**>
    @type stdout
  </match>
  <source>
    @type forward
  </source>
  <source>
    @type http
    port 8888
  </source>
  <source>
    @type debug_agent
    bind 127.0.0.1
    port 24230
  </source>
</ROOT>
2021-08-03 07:00:01 +0000 [info]: listening fluent socket on 0.0.0.0:24224
2021-08-03 07:00:01 +0000 [info]: listening dRuby uri="druby://127.0.0.1:24230" object="Engine"
2021-08-03 07:23:37 +0000 [info]: shutting down fluentd
2021-08-03 07:23:37 +0000 [info]: shutting down input type="forward" plugin_id="object:3feb28faeb34"
2021-08-03 07:23:37 +0000 [info]: shutting down input type="http" plugin_id="object:3feb28fa9f08"
2021-08-03 07:23:37 +0000 [info]: shutting down input type="debug_agent" plugin_id="object:3feb28fa8f2c"
2021-08-03 07:23:37 +0000 [info]: shutting down output type="tdlog" plugin_id="object:3feb28d7b40c"
2021-08-03 07:23:37 +0000 [info]: shutting down output type="stdout" plugin_id="object:3feb28ff6e70"
2021-08-03 07:23:37 +0000 [info]: process finished code=0
2021-08-03 07:23:38 +0000 [info]: reading config file path="/etc/td-agent/td-agent.conf"
2021-08-03 07:23:38 +0000 [info]: starting fluentd-0.12.40
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-mixin-plaintextformatter' version '0.2.6'
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-plugin-buffer-lightening' version '0.0.2'
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-plugin-kafka' version '0.6.1'
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-plugin-mongo' version '0.8.1'
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-plugin-rewrite-tag-filter' version '1.5.6'
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-plugin-s3' version '0.8.5'
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-plugin-scribe' version '0.10.14'
2021-08-03 07:23:38 +0000 [info]: gem 'fluent-plugin-td' version '0.10.29'

I'm really curious about the reason why it can't be installed..

Thank you