Fluent Bit installation on Ubuntu

In order to forward Ubuntu logs to Apica Ascent by leveraging Fluent Bit, do the following.

1. Download the td-agent-bit.sh script from this folder.

2. Make the script executable by running the following command.

chmod +x td-agent-bit.sh

For AWS EC2 ubuntu instances

chmod +x td-agent-bit-aws.sh

1. Set the cluster details

export ASCENT_HOST="example.apica.i"
export MY_TOKEN=<Your Token>

1. Execute the script by running the following command.

HTTP endpoint:
sudo -E ./td-agent-bit.sh "http"

HTTPS endpoint:
sudo -E ./td-agent-bit.sh "https"

or

HTTP endpoint:
sudo bash td-agent-bit.sh "http"

HTTPS endpoint:
sudo bash td-agent-bit.sh "https"


For AWS EC2 Ubuntu instances:

HTTP endpoint:
sudo -E ./td-agent-bit-aws.sh "http"

HTTPS endpoint:
sudo -E ./td-agent-bit-aws.sh "https"

or

HTTP endpoint:
sudo bash td-agent-bit-aws.sh "http"

HTTPS endpoint:
sudo bash td-agent-bit-aws.sh "https"

The script execution carries out the following:

• Installs Fluent Bit

• Checks your OS versions and updates your sources list, as mentioned in the Fluent Bit documentation.

• Configures Rsyslog to add omfwd, as shown below.

  *.* action(type="omfwd"
           queue.type="LinkedList"
           action.resumeRetryCount="-1"
           queue.size="10000"
           queue.saveonshutdown="on"
           target="127.0.0.1" Port="5140" Protocol="tcp"
           )

• The script also places the td-agent-bit.conf file under the default Fluent Bit installation folder /etc/td-agent-bit as shown below for http and https endpoints.

   For HTTP endpoint
   
   [OUTPUT]
      Name          http
      Match         *
      Host          localhost
      Port          80
      URI           /v1/json_batch
      Format        json
      tls           off
      tls.verify    off
      net.keepalive off
      compress      gzip
      Header Authorization Bearer ${ASCENT_TOKEN}
   
  
   For HTTPS endpoint
   
     [OUTPUT]
      name     http
      match    *
      host     <ascent endpoint>
      port     443 
      URI      /v1/json_batch
      Format   json
      tls      on
      tls.verify  off
      net.keepalive  off
      compress      gzip
      Header Authorization Bearer <Token>  
   

You should now see your Ubuntu logs being ingested into the Linux:Linux1 namespace on your Apica Ascent UI.

linux