Logstash - Error "Expected one of [ \t\r\n], "#" - logstash

Question

I use Docker to build my Logstash 7.10.1 image, I overrided logstash.conf with :
input {
uri => "mongodb://admin:pass#localhost:27017/programs?ssl=true"
placeholder_db_dir => "/opt/logstash-mongodb/"
placeholder_db_name => "logstash_sqlite.db"
collection => "programs"
batch_size => 5000
}
output {
elasticsearch {
hosts => ["http://elasticsearch-crawlers:9200"]
index => "programs"
document_id => "%{id}"
}
stdout {
codec => rubydebug
}
}
I have this error :
[logstash.agent ] Failed to execute action
{:action=>LogStash::PipelineAction::Create/pipeline_id:main,
:exception=>"LogStash::ConfigurationError", :message=>"Expected one
of [ \t\r\n], "#", "input", "filter", "output" at line 1,
column 1 (byte 1)",
:backtrace=>["/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:32:in
compile_imperative'", "org/logstash/execution/AbstractPipelineExt.java:184:in initialize'",
"org/logstash/execution/JavaBasePipelineExt.java:69:in initialize'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:47:in initialize'",
"/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:52:in
execute'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:365:in block
in converge_state'"]}
I am on Window, I used Notepad++ to create this logstash.conf file. I used Convert with BOM and I am on Unix (LF) format.
I don't see what is the problem here ? I checked this thread : Logstash exception Expected one of #, input, filter, output at line 1, column 1, but it seems my file is correct

Answer 1

Your config is missing the input plugin type, it seems that you are using the mongodb input plugin.
Your config should be something like this.
input {
mongodb {
uri => "mongodb://admin:pass#localhost:27017/programs?ssl=true"
placeholder_db_dir => "/opt/logstash-mongodb/"
placeholder_db_name => "logstash_sqlite.db"
collection => "programs"
batch_size => 5000
}
}